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.