DOCSLIB.ORG

Asteraceae: Mutisieae) Author(S): Eduardo Pasini & Liliana Katinas Source: Willdenowia, 46(1):27-35

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Asteraceae: Mutisieae) Author(S): Eduardo Pasini & Liliana Katinas Source: Willdenowia, 46(1):27-35 Typifications in the genus Trichocline (Asteraceae: Mutisieae) Author(s): Eduardo Pasini & Liliana Katinas Source: Willdenowia, 46(1):27-35. Published By: Botanic Garden and Botanical Museum Berlin (BGBM) DOI: http://dx.doi.org/10.3372/wi.46.46103 URL: http://www.bioone.org/doi/full/10.3372/wi.46.46103 BioOne (www.bioone.org) is a nonprofit, online aggregation of core research in the biological, ecological, and environmental sciences. BioOne provides a sustainable online platform for over 170 journals and books published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Web site, and all posted and associated content indicates your acceptance of BioOne’s Terms of Use, available at www.bioone.org/page/terms_of_use. Usage of BioOne content is strictly limited to personal, educational, and non-commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. Willdenowia Annals of the Botanic Garden and Botanical Museum Berlin-Dahlem EDUARDO PASINI1* & LILIANA KATINAS2 Typifications in the genus Trichocline (Asteraceae: Mutisieae) Version of record first published online on 11 March 2016 ahead of inclusion in April 2016 issue. Abstract: Concerning the genus Trichocline (Asteraceae: Mutisieae), a neotype is designated for the name Bichenia aurea (≡ T. aurea) and lectotypes are designated for the names Onoseris heterophylla (≡ T. heterophylla), T. humilis and T. linearifolia. Nomenclatural and taxonomic information and IUCN conservation status assessments are given for the four species T. aurea, T. heterophylla, T. humilis and T. linearifolia. In addition, a new record of T. heterophylla for Argentina is reported. Key words: Argentina, South America, nomenclature, lectotype, neotype, new record, IUCN, conservation status, Asteraceae, Compositae, Mutisieae, Mutisioideae, Trichocline Article history: Received 15 June 2015; peer-review completed 11 September 2015; received in revised form and accepted for publication 30 November 2015. Citation: Pasini E. & Katinas L. 2016: Typifications in the genus Trichocline (Asteraceae: Mu tisieae). – Willdenowia 46: 27 – 35. doi: http://dx.doi.org/10.3372/wi.46.46103 Introduction nomic revision, in progress by the first author, compelled us to designate types for Bichenia aurea D. Don (≡ T. Trichocline Cass. was described by Henri Cassini (1817) aurea (D. Don) Reiche), Onoseris heterophylla Spreng. based on T. incana (Lam.) Cass. (≡ Doronicum incanum (≡ T. heterophylla (Spreng.) Less.), T. humilis Less. and T. Lam.). It belongs to the predominantly South American linearifolia Malme. tribe Mutisieae (Asteraceae) and comprises about 24 spe- cies distributed mainly in the Andes and S Brazil. The species of the genus are perennial herbs with broad and Material and methods hemispherical involucres, bilabiate corollas, marginal ray florets with staminodes, and truncate cypselae with short, We have analysed material from the following herbaria: elliptical twin hairs (Hind 2001; Katinas 2004). CNPO, CORD, CRI, CTES, FLOR, FURB, G, HAS, HB, The most extensive revision of Trichocline was made HBR, HURG, ICN, LIL, LP, MBM, MO, MPUC, MVFA, by Zardini (1975), who provided extensive taxonomic in- MVJB, MVM, PACA, S, SALLE, SI, SMDB, SP and formation but without type designations for some of the SPF. In other cases, high-resolution images of specimens names. Other studies such as Katinas & al. (2008) and available on websites of the B, G, GH, P, S and US her- Pasini & Ritter (2012) also lack type designations. A taxo- baria were studied. The herbarium codes follow Thiers 1 Programa de Pós-Graduação em Botânica, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Ale- gre, Rio Grande do Sul 91501-970, Brazil; *e-mail: [email protected] (author for correspondence). 2 División Plantas Vasculares, Museo de La Plata (Universidad Nacional de La Plata), Paseo del Bosque s/n, 1900 La Plata, Argen- tina; e-mail: [email protected] 28 Pasini & Katinas: Typifications in the genus Trichocline (2015+). In addition, we conducted a conservation status Lessing (1832) described Chaetanthera berteroana assessment of these species using the categories and crite- (as “Berteriana”) honouring the Italian botanist Carlo ria of the IUCN (2012). Direct observation of plant popu- Giuseppe Bertero. Because Lessing cited the earlier lations and analysis of specimens in the above-mentioned name Bichenia aurea in synonymy in the protologue, C. herbaria were used to apply IUCN categories and criteria. berteroana is an illegitimate name under Art. 52.1 of the The specimens examined correspond to all subpopula- International Code of Nomenclature for algae, fungi, and tions; for the definition of “subpopulation” and “location”, plants (ICN – McNeill & al. 2012) and is automatically see IUCN (2014). Area of occupancy and extent of occur- typified by the type of B. aurea (Art. 7.5). Concerning rence were calculated with Kew’s Geospatial Conserva- the spelling, Hooker & Arnott (1835) cited the name as tion Assessment Tool, GeoCAT (http://geocat.kew.org). C. berteroana, a slightly different spelling of the origi- nal name. Later, Candolle (1838) cited C. berteroana as a synonym of “C. ber teriana”, which probably caused Results and Discussion confusion regarding the valid name and the correct spell- ing. The correct spelling according to Art. 60.12 and Rec. Trichocline aurea (D. Don) Reiche in Anales Univ. 60C.1 of the ICN for an epithet derived from a name like Chile, I, Mem. Ci. Lit. 115: 343. 1904 ≡ Bichenia au- Bertero, when the gender of the genus name is feminine rea D. Don in Trans. Linn. Soc. London. 16: 237. 1830 (as in Chaetanthera), is berteroana. ≡ Chaetanthera berteroana Less., Syn. Gen. Compos.: The name Trichocline pedicularifolia Walp. (Wal- 111. 1832, nom. illeg. (Art. 52.1). – Protologue: “In Chili pers 1840) was considered as a synonym of T. aurea by ad Coquimbo. Caldcleugh”. – Neotype (designated Zardini (1975) and Katinas & al. (2008); however these here): Chile, “Santiago”, s.d. (fl.), A. Caldcleugh s.n. authors did not see its type material. In fact, Stafleu & (G 00308260! [Fig. 1]). Cowan (1988: 45) mentioned that the present location of Walpers’s specimens is unknown. In the protologue, Nomenclatural and taxonomic notes — Trichocline au- Walpers cited material in the herbarium of August Lucae rea was first described as Bichenia aurea by David Don (“Chili. – E plantis Besserianis. – v. s. in hb. Lucaeano et (1830). In the protologue, Don gave the following loca- Regio“), and according to Stafleu and Cowan (1981), Lu- tion for where the specimen was collected: “In Chile ad cae’s specimens were housed in KIEL, which eventually Coquimbo. Caldcleugh”. No specimens and no herbaria was destroyed. However, the same authors also noted that were cited. The species description is poor and incom- duplicates could be found at BR, MW, P and W. We con- plete, in that the author cited only the floral features of the tacted the curators of these herbaria and were informed plant, such as number of series of ray florets, number of that the material is not housed there. Because we could nerves in ray floret corollas, and pappus. Don (1830) clear- not find any specimen collected by August Lucae associ- ly indicated that, by the time the species was described, he ated with the name of T. pedicularifolia, we decided to was studying material in Aylmer Bourke Lambert’s Her- remove this name from the synonymy of T. aurea. barium. Furthermore, in her article about the sale of this Trichocline aurea is easily recognizable by its pin- herbarium, Miller (1970) pointed out that Obediah Rich natisect leaves with serrate margins, thickened scape – a bookseller from London – bought lot no. 15 of Aylmer base, and smooth (vs papillose) anther tails. The latter Bourke Lambert’s Herbarium in which the Caldcleugh two characters are not found in any other species in the material was included. According to Lasègue (1845) this genus. material was later transferred to the Delessert Herbarium in the P (Paris) herbarium. We asked the curator of P, and Conservation status — According to the categories and he informed us that this material is not housed there. Con- criteria of the IUCN (2012. 2014), we assessed Tri- tinuing our search, according to Miller (1970), in 1869 chocline aurea as Endangered: EN B2ab(ii,iii,iv). The the Delessert heirs donated the herbarium to the munici- species occurs in C Chile, from sea level (Zardini 1975) pality of Geneva. According to Stafleu & Cowan (1976), to c. 1400 m. According to our herbarium survey, the dis- the David Don collection was donated to the Linnean tribution is very narrow and the species can therefore be Society of London (LINN) and other material is at BR. considered rare. The area of occupancy was calculated as We searched the websites of both herbaria and asked the 44 km2. Even though there is a considerable amount of curators, who informed us that this material is not housed material of this species in South American herbaria, most there. However, by searching the G herbarium website we of the specimens are duplicates of collections made al- located a Caldcleugh specimen (G 00308260) but with a most 50 years ago, and most of the collections were made different location: “Santiago”. This material is well pre- almost 70 years ago, with the most recent from almost 30 served and has the characters of the original description. years ago. Most of the documented subpopulations oc- However, because the label gives a different location, we cur in currently urbanized areas, and we therefore predict doubt that this specimen is part of the original material of that the subpopulations are continually declining in their B. aurea. In the apparent absence of any definite original extent of occurrence, area of occupancy and quality of material, we designate it here as the neotype.
Load more

Recommended publications
  • Literature Cited
    Literature Cited Robert W. Kiger, Editor This is a consolidated list of all works cited in volumes 19, 20, and 21, whether as selected references, in text, or in nomenclatural contexts. In citations of articles, both here and in the taxonomic treatments, and also in nomenclatural citations, the titles of serials are rendered in the forms recommended in G. D. R. Bridson and E. R. Smith (1991). When those forms are abbre- viated, as most are, cross references to the corresponding full serial titles are interpolated here alphabetically by abbreviated form. In nomenclatural citations (only), book titles are rendered in the abbreviated forms recommended in F. A. Stafleu and R. S. Cowan (1976–1988) and F. A. Stafleu and E. A. Mennega (1992+). Here, those abbreviated forms are indicated parenthetically following the full citations of the corresponding works, and cross references to the full citations are interpolated in the list alphabetically by abbreviated form. Two or more works published in the same year by the same author or group of coauthors will be distinguished uniquely and consistently throughout all volumes of Flora of North America by lower-case letters (b, c, d, ...) suffixed to the date for the second and subsequent works in the set. The suffixes are assigned in order of editorial encounter and do not reflect chronological sequence of publication. The first work by any particular author or group from any given year carries the implicit date suffix “a”; thus, the sequence of explicit suffixes begins with “b”. Works missing from any suffixed sequence here are ones cited elsewhere in the Flora that are not pertinent in these volumes.
    [Show full text]
  • Abnormal Pattern Formation in Vegetative and Floral Development in Polyhouse Gerbera Cultivation
    Res. Jr. of Agril. Sci. 12(2): 607–611 Research Journal of Agricultural Sciences An International Journal P- ISSN: 0976-1675 E- ISSN: 2249-4538 www.rjas.org Research Paper Abnormal Pattern Formation in Vegetative and Floral Development in Polyhouse Gerbera Cultivation A. S. Kadam*1 and D. D. Namdas2 Received: 28 Nov 2020 | Revised accepted: 02 Apr 2021 | Published online: 05 Apr 2021 © CARAS (Centre for Advanced Research in Agricultural Sciences) 2021 A B S T R A C T Numerous unusual advancements in plant part (vegetative and regenerative) or alterations in the structure of an organ of plants referred as abnormality. Relatively few cases of abnormalities in Gerbera jamesonii of greenhouse cultivation have received attention in the literature. The cases reported are scattered over a period and no detailed historical study has apparently been made nor listed collectively. Some extra efforts regarding enhancement of yield leads to some physiological disorders. Also, insect attack, edaphic and uncontrolled environmental factors may destroy the quality and vigour of plant exhibiting abnormalities. This Paper describes abnormalities observed in commercial floriculture plots during study period. Key words: Gerbera jamesonii, Phyllody, Greenhouse, Vegetative abnormality, Reproductive abnormality Gerbera (Gerbera jamesonii Bolus ex Hook) is the among varieties. Gerbera flowers also possess hairy pappus. most recent profitable trade to Indian Floriculture, industrially The stamens of Gerbera florets are aborted in marginal developed all through the world in a wide extent of climatic flowers, the petals and anthers are fused into tubular structures conditions [1]. Gerbera, commonly known as Transvaal Daisy, and the plant possesses inferior ovaries.
    [Show full text]
  • Chaptalia Hermogenis (Asteraceae: Mutisieae), a New Species from the Brazilian Atlantic Rain Forest Author(S): Marta Dias De Moraes Source: Novon, Vol
    Chaptalia hermogenis (Asteraceae: Mutisieae), a New Species from the Brazilian Atlantic Rain Forest Author(s): Marta Dias de Moraes Source: Novon, Vol. 8, No. 2 (Summer, 1998), pp. 173-175 Published by: Missouri Botanical Garden Press Stable URL: http://www.jstor.org/stable/3391991 Accessed: 17-06-2015 18:33 UTC Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at http://www.jstor.org/page/ info/about/policies/terms.jsp JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. Missouri Botanical Garden Press is collaborating with JSTOR to digitize, preserve and extend access to Novon. http://www.jstor.org This content downloaded from 143.106.108.149 on Wed, 17 Jun 2015 18:33:02 UTC All use subject to JSTOR Terms and Conditions Chaptalia hermogenis(Asteraceae: Mutisieae), a New Species from the Brazilian Atlantic Rain Forest Marta Dias de Moraes Departamento de Botanica, I.B., UNICAMP, Caixa Postal 6109, Campinas 13083-970, SP, Brazil ABSTRACT. Chaptalia hermogenis(sect. Archi- anyformal taxonomic changes. The cladogrampre- chaptalia), currentlyknown only froma montane sentedby Hansen (1990) is based onlyon 15 char- forestin the AtlanticRain Forestregion of south- acters and some of these are polymorphicin his eastern Brazil, is described and illustrated.The terminaltaxa. For example,the character"scape" new species is comparedwith the closely similar was consideredbracteate in the genus Chaptalia, C.
    [Show full text]
  • Asteraceae) De Chile
    Gayana Bot. 69(1): 9-29, 2012 ISSN 0016-5301 Actualización sistemática y distribución geográfica de Mutisioideae (Asteraceae) de Chile Systematic revision and geographic distribution of Chilean Mutisioideae (Asteraceae) ANDRÉS MOREIRA-MUÑOZ1, VANEZZA MORALES1 & MÉLICA MUÑOZ-SCHICK2 1Instituto de Geografía, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile. 2Museo Nacional de Historia Natural, Casilla 787, Santiago, Chile. [email protected]; [email protected]; [email protected] RESUMEN Se presenta una actualización sistemática y de distribución geográfica de las especies y categorías infraespecíficas de la subfamilia Mutisioideae (tribus Mutisieae, Nassauvieae y Onoserideae) para Chile. El trabajo fue realizado sobre la base de bibliografía y la revisión de ejemplares principalmente de los herbarios SGO y CONC. Los resultados arrojan la presencia de 28 géneros, 192 especies y otros 22 taxones infraespecíficos en Chile. Siete de estos géneros, 77 especies y 12 taxones infraespecíficos tienen carácter de endémicos para el país. La revisión arroja dos adiciones y dos sustracciones a la flora de Chile. Adicionalmente, 47 de los taxones han sido corregidos en cuanto a su distribución geográfica por región en Chile. Se discute finalmente las implicancias que posee un adecuado conocimiento de la distribución geográfica de las especies para estudios de biogeografía y conservación de la flora nativa. PALABRAS CLAVE: Asteraceae, Chile, Compositae, diversidad, endemismo, Mutisieae, Nassauvieae, Onoserideae. ABSTRACT A systematic revision including the geographic distribution of the taxa pertaining to the Chilean Mutisioideae (tribes Mutisieae, Nassauvieae and Onoserideae) has been undertaken. The study has been done by means of the revision of available monographs and the most recent regional checklist, together with the examination of exemplars from SGO and CONC herbaria.
    [Show full text]
  • Morphological Characters Add Support for Some Members of the Basal Grade of Asteraceae
    bs_bs_banner Botanical Journal of the Linnean Society, 2013, 171, 568–586. With 9 figures Morphological characters add support for some members of the basal grade of Asteraceae NÁDIA ROQUE1* and VICKI A. FUNK2 1Instituto de Biologia, Universidade Federal da Bahia, Campus Universitário de Ondina, Salvador, Bahia 40170-110, Brazil 2US National Herbarium, Department of Botany, National Museum of Natural History, Smithsonian Institution MRC 166, Washington DC, 20013-7012, USA Received 17 November 2011; revised 3 April 2012; accepted for publication 1 October 2012 Recent molecular studies in Asteraceae have divided tribe Mutisieae (sensu Cabrera) into 13 tribes and eight subfamilies. Each of the major clades is well supported but the relationships among them are not always clear. Some of the new taxa are easily characterized by morphological data but others are not, chief among the latter being three subfamilies (Stifftioideae, Wunderlichioideae and Gochnatioideae) and the tribe Hyalideae. To under- stand evolution in the family it is critical to investigate potential morphological characters that can help to evaluate the basal lineages of the Asteraceae. The data for this study were taken from 52 species in 24 genera representing the basal groups in the family. Many characters were examined but most of the useful ones were from reproductive structures. Several apomorphies supported a few of the clades. For instance, members of subfamily Wunderlichioideae (Hyalideae and Wunderlichieae) share predominantly ten-ribbed achenes and members of Wunderlichioideae + Stifftioideae share two synapomorphies: 100–150 (200) pappus elements, arranged in (three) four or five series. These apomorphies can be viewed as an indication of a sister-group relationship between the two subfamilies as the placement of Stifftieae was not well resolved by the molecular data.
    [Show full text]
  • Diversidad De Plantas Y Vegetación Del Páramo Andino
    Plant diversity and vegetation of the Andean Páramo Diversidad de plantas y vegetación del Páramo Andino By Gwendolyn Peyre A thesis submitted for the degree of Doctor from the University of Barcelona and Aarhus University University of Barcelona, Faculty of Biology, PhD Program Biodiversity Aarhus University, Institute of Bioscience, PhD Program Bioscience Supervisors: Dr. Xavier Font, Dr. Henrik Balslev Tutor: Dr. Xavier Font March, 2015 Aux peuples andins Summary The páramo is a high mountain ecosystem that includes all natural habitats located between the montane treeline and the permanent snowline in the humid northern Andes. Given its recent origin and continental insularity among tropical lowlands, the páramo evolved as a biodiversity hotspot, with a vascular flora of more than 3400 species and high endemism. Moreover, the páramo provides many ecosystem services for human populations, essentially water supply and carbon storage. Anthropogenic activities, mostly agriculture and burning- grazing practices, as well as climate change are major threats for the páramo’s integrity. Consequently, further scientific research and conservation strategies must be oriented towards this unique region. Botanical and ecological knowledge on the páramo is extensive but geographically heterogeneous. Moreover, most research studies and management strategies are carried out at local to national scale and given the vast extension of the páramo, regional studies are also needed. The principal limitation for regional páramo studies is the lack of a substantial source of good quality botanical data covering the entire region and freely accessible. To meet the needs for a regional data source, we created VegPáramo, a floristic and vegetation database containing 3000 vegetation plots sampled with the phytosociological method throughout the páramo region and proceeding from the existing literature and our fieldwork (Chapter 1).
    [Show full text]
  • Acta Botanica Brasilica
    Conservation of species-rich subtropical grasslands: traditional management vs. legal conservation requirements in primary and secondary grasslands doi: 10.1590/0102-33062019abb0306 Table S1. Endemic and endangered species recorded in three grassland types (PGCA = primary grasslands in conservation areas, SGCA = secondary grassland in conservation areas, PGTM = primary grassland subjected to the traditionally management) at the fifty-eight study sites in southern Rio Grande do Sul, South Brazil. The degree of threat of species was checked in the current Red List made for the state (Decreto Estadual nº 52.109/ 2014) and endemic species is according to Andrade et al. 2018 – ED: Endemic; CR: Critically Endangered; EN: Endangered; VU: Vulnerable; NT: Near Threatened. Families / Species Categories PGCA SGCA PGTM Amaranthaceae Gomphrena sellowiana Mart. ED, CR X Gomphrena graminea Moq. NT X X Gomphrena perennis L. NT X Pfaffia gnaphaloides (L. f.) Mart. NT X X Apocynaceae Mandevilla coccinea (Hook. & Arn.) Woodson VU X Asparagaceae Clara ophiopogonoides Kunth EN X X Asteraceae Lessingianthus macrocephalus (Less.) H.Rob. ED X X Pamphalea commersonii Cass. EN X X Schlechtendahlia luzulifolia Less. ED, NT X Trichocline cisplatina E. Pasini & M.R. Ritter ED, VU X Trichocline incana (Lam.) Cass. EN X Bromeliaceae Dyckia choristaminea Mez ED, EN X Dyckia leptostachya Baker VU X X Cactaceae Frailea gracillima (Lem.) Britton & Rose ED, VU X Frailea pygmaea (Speg.) Britton & Rose ED, VU X Gymnocalycium denudatum (Link & Otto) Pfeiff. ex Mittler ED, EN X Parodia ottonis (Lehm.) N.P. Taylor VU X X Euphorbiaceae Croton gnaphalii Baill. ED X Adesmia securigerifolia Herter ED X Mimosa rocae Lorentz & Niederl.
    [Show full text]
  • Gene Family of Asteraceae
    Proc. Natl. Acad. Sci. USA Vol. 93, pp. 9033-9038, August 1996 Evolution Duplication and functional divergence in the chalcone synthase gene family of Asteraceae: Evolution with substrate change and catalytic simplification (anthocyanin/flavonoid genetics/gene phylogeny/secondary metabolism/stilbene synthase) YRJO HELARIUTA*t*, MiKA KOTILAINEN*, PAULA ELOMAA*, NISSE KALKKINEN*, KARE BREMER§, TEEMU H. TEERI*, AND VICTOR A. ALBERTt *Institute of Biotechnology, University of Helsinki, P.O. Box 45, FIN-00014 Helsinki, Finland; *The New York Botanical Garden, Bronx, NY 10458-5126; and §Department of Systematic Botany, Uppsala University, Villavagen 6, S-752 36 Uppsala, Sweden Communicated by Michael T Clegg, University of California, Riverside, CA, May 20, 1996 (received for review November 29, 1995) ABSTRACT Plant-specific polyketide synthase genes con- SS genes at the level of deduced amino acid sequence. Its stitute a gene superfamily, including universal chalcone syn- expression pattern at both organ and cellular levels is not thase [CHS; malonyl-CoA:4-coumaroyl-CoA malonyltrans- correlated with anthocyanin pigmentation, for which CHS ferase (cyclizing) (EC 2.3.1.74)] genes, sporadically distrib- provides the first committed biosynthetic step. Furthermore, uted stilbene synthase (SS) genes, and atypical, as-yet- the catalytic properties of the corresponding enzyme differ uncharacterized CHS-like genes. We have recently isolated from CHS and SS, although the GCHS2 catalytic reaction and from Gerbera hybrida (Asteraceae) an unusual CHS-like gene, its role in vivo are not yet completely understood. GCHS2, which codes for an enzyme with structural and In this study we show that the GCHS2-like genes in Aster- enzymatic properties as well as ontogenetic distribution dis- aceae constitute a gene family, whose corresponding amino tinct from both CHS and SS.
    [Show full text]
  • Early Evolution of the Angiosperm Clade Asteraceae in the Cretaceous of Antarctica
    Early evolution of the angiosperm clade Asteraceae in the Cretaceous of Antarctica Viviana D. Barredaa,1,2, Luis Palazzesia,b,1, Maria C. Telleríac, Eduardo B. Oliverod, J. Ian Rainee, and Félix Forestb aDivisión Paleobotánica, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia,” Consejo Nacional de Investigaciones Cientificas y Técnicas, Buenos Aires C1405DJR, Argentina; bJodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3DS, United Kingdom; cLaboratorio de Sistemática y Biología Evolutiva, Museo de La Plata, La Plata B1900FWA, Argentina; dCentro Austral de Investigaciones Científicas, Consejo Nacional de Investigaciones Cientificas y Técnicas, 9410 Ushuaia, Tierra del Fuego, Argentina; and eDepartment of Palaeontology, GNS Science, Lower Hutt 5040, New Zealand Edited by Michael J. Donoghue, Yale University, New Haven, CT, and approved July 15, 2015 (received for review December 10, 2014) The Asteraceae (sunflowers and daisies) are the most diverse Here we report fossil pollen evidence from exposed Campanian/ family of flowering plants. Despite their prominent role in extant Maastrichtian sediments from the Antarctic Peninsula (Fig. 1, Fig. S1, terrestrial ecosystems, the early evolutionary history of this family and SI Materials and Methods, Fossiliferous Localities)(7)thatradi- remains poorly understood. Here we report the discovery of a cally changes our understanding of the early evolution of Asteraceae. number of fossil pollen grains preserved in dinosaur-bearing deposits from the Late Cretaceous of Antarctica that drastically pushes back Results and Discussion the timing of assumed origin of the family. Reliably dated to ∼76–66 The pollen grains reported here and discovered in the Late Cre- Mya, these specimens are about 20 million years older than previ- taceous of Antarctica are tricolporate, microechinate, with long ously known records for the Asteraceae.
    [Show full text]
  • NOVELTIES to COMPOSITAE FAMILY in RIO GRANDE DO SUL STATE Floral
    BALDUINlA, n. 29, p. 01-08, IS-VII-2011 NOVELTIES TO COMPOSITAE FAMILY IN RIO GRANDE DO SUL STATE FLORAl LEONARDO PAZ DEBLE2 ANABELA SILVEIRA DE OLIVEIRA DEBLE3 SUMMARY Twelve new records to Compositae from Rio Grande do Sul Flora are proposed: Soliva macrosperma Cabrera (Tribe Anthemidae); Baccharis coronata Giuliano, Baccharis flabellata Hook. & Arn., Conyza pampeana (Paro di) Cabrera, Conyza serrana Cabrera, and Podocoma spegazzini Cabrera (Tribe Astereae); Micropsis ostenii Beauveard, Micropsis spathulata (Pers.) Cabrera, and Pseudognaphalium luteo-album (L.) Hilliard & B. L. Burtt (Tribe Gnaphalieae); Trichocline humilis Less. (Tribe Mutisieae); Stenachaenium adenanthum (Sch. Bip. ex Krasch.) Krasch. (Tribe Plucheae); and Chrysolaena propinqua (Hieron.) H. Rob. varocanescens (Chodat) Dematt. (Tribe Vemonieae). The identity oi Hysterionica nidorelloides De. is defined, being Hysterionica montevidensis Baker its synonym. A superfluous combination under Viguiera santacatarinensis is included as new synonym. Isostigma riedelii (Baker) Chodat is excluded to Rio Grande do Sul Flora, and two new combinations are proposed: Calea paraguayensis (Kuntze) Deble and Vernonanthura nudiflora f. albiflora (Matzenb.) Deble. Key worlds: Asteraceae, checklist, new records, new synonyms, new combinations. RESUMO [Novidades para a fanu1ia Compositae na Flora do Rio Grande do Sul]. Doze novas citações em Compositae para a Flora do Rio Grande do Sul são propostas: Soliva macrosperma Cabrera (Tribo Anthemidae); Baccharis coronata Giuliano, Baccharis flabellata Hook. & Am., Conyza pampeana (Parodi) Cabrera, Conyza serrana Cabrera e Podocoma spegazzini Cabrera (Tribo Astereae); Micropsis ostenii Beauveard, Micropsis spathulata (Pers.) Cabrera e Pseudognaphalium luteo-album (L.) Hilliard & B. L. Burtt (Tribo Gnaphalieae); Trichocline humilis Less. (Tribo Mutisieae); Stenachaenium adenanthum (Sch. Bip. ex Krasch.) Krasch. (Tribo Plucheae); e Chrysolaena propinqua (Hieron.) H.
    [Show full text]
  • Paquirea, a New Andean Genus for Chucoa
    Panero, J.L. and S.E. Freire. 2013. Paquirea , a new Andean genus for Chucoa lanceolata (Asteraceae, Mutisioideae, Onoserideae). Phytoneuron 2013-11: 1–5. Published 9 February 2013. ISSN 2153 733X PAQUIREA , A NEW ANDEAN GENUS FOR CHUCOA LANCEOLATA (ASTERACEAE, MUTISIOIDEAE, ONOSERIDEAE) JOSÉ L. PANERO Section of Integrative Biology 1 University Station, C0930, The University of Texas Austin, Texas, USA 78712 [email protected] SUSANA E. FREIRE Instituto de Botánica Darwinion Casilla de Correo 22 Labardén 200, San Isidro (B1642HYD) Buenos Aires, ARGENTINA [email protected] ABSTRACT A previous molecular study showed that Chucoa ilicifolia , the type species of the genus Chucoa , is within the genus Onoseris clade. A new genus, Paquirea Panero & S.E. Freire, is proposed and described to accommodate the other species of Chucoa , C. lanceolata , as Paquirea lanceolata (H. Beltrán & Ferreyra) Panero & S.E. Freire, comb. nov. The new genus differs from Onoseris in having actinomorphic corollas with lobes of equivalent size and discoid capitula. Paquirea shares with other Onoserideae a shrubby habit, solitary capitula, epaleate receptacles, five- lobed corollas, anthers with long tails, style branches dorsally papillose with rounded apices, and heteromorphic pappi in three series. Among the Onoserideae, Paquirea, because of its solitary capitula and shrubby habit, is most similar to Plazia and Aphyllocladus . Paquirea can be distinguished from these genera by its conspicuously leafy stems (vs. leaves soon deciduous in Aphyllocladus ), alternate leaves (vs. spirally-arranged leaves in Plazia ), discoid capitula (vs. radiate capitula in Plazia ), cream-colored corollas (vs. lilac to purple corollas in Aphyllocladus and white to pink in Plazia ), and glabrous achenes (vs.
    [Show full text]
  • Sepal Identity of the Pappus and Floral Organ Development in the Common Dandelion (Taraxacum Officinale; Asteraceae)
    plants Article Sepal Identity of the Pappus and Floral Organ Development in the Common Dandelion (Taraxacum officinale; Asteraceae) Kitty Vijverberg 1,2,* , Monique Welten 1, Marjan Kraaij 3 , Bertie Joan van Heuven 1, Erik Smets 1 and Barbara Gravendeel 1,2 1 Evolutionary Ecology, Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, The Netherlands; [email protected] (M.W.); [email protected] (B.J.v.H.); [email protected] (E.S.); [email protected] (B.G.) 2 Experimental Plant Ecology, Institute for Water and Wetland Research (IWWR), Radboud University, Heyendaalseweg 135, 6500 GL Nijmegen, The Netherlands 3 Evolutionary Genetics, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands; [email protected] * Correspondence: [email protected]; Tel.: +31-(0)715271910 Abstract: The dry one-seeded fruits (cypselae) of the Asteraceae are often crowned with a pappus, an appendage of hairs or scales that assists in dispersal. It is generally assumed, but little investigated, that the pappus represents the outer floral whorl where the sepals are usually located. We analysed pappus–sepal homology in dandelions using micromorphological and floral gene expression analyses. We show that the pappus initiates from a ring primordium at the base of the corolla, heterochronic to the petals. Pappus parts form from this ring, with those in the alternipetalaous position usually being ahead in growth, referring to sepal identity. Tof-APETALLA1 expression increased during floret Citation: Vijverberg, K.; Welten, M.; development and was highest in mature pappus. Tof-PISTILLATA expression was high and confined Kraaij, M.; van Heuven, B.J.; Smets, to the floral tissues containing the petals and stamens, consistent with expectations for sepals.
    [Show full text]