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Flowering of Watsonia Laccata As Influenced by Corm Storage and Forcing Temperatures ⁎ J.K
Available online at www.sciencedirect.com South African Journal of Botany 77 (2011) 631–637 www.elsevier.com/locate/sajb Flowering of Watsonia laccata as influenced by corm storage and forcing temperatures ⁎ J.K. Suh a, , J.H. Kim a, A.K. Lee a, M.S. Roh b a Dankook University, College of Bio-Resources Science, Department of Environmental Horticulture, Cheonan, Chungnam 330-714, Republic of Korea b US Department of Agriculture, Agricultural Research Service, National Arboretum, Floral and Nursery Plants Research Unit, Beltsville MD 20705, USA Received 24 March 2010; received in revised form 28 November 2010; accepted 22 December 2010 Abstract The genus Watsonia, belonging to the family Iridaceae, is comprised of about 50 species including W. laccata (Jacquin) Ker Gawler that flowers from September to November following low temperature and winter rainfall. Therefore, we hypothesized that flowering would be favored by forcing at low greenhouse temperatures. Using clonal W. laccata corms, four experiments were designed to investigate the effect of temperatures during corm storage, forcing, and their interaction on growth and flowering. Corm formation is favored by growing plants at 18°– 20°/15°–17 °C and 21°–23°/18°–20 °C, day/night temperatures. Flowering was earliest with corms produced at 24°–26°/18°–20 °C and forced at 18°–20/15°–17 °C, and was significantly delayed when forced at 27°–29°/24°–26 °C. Flowering was, however, favored by 2 or 4 weeks of high temperatures (27°–29°/24°–26 °C) prior to forcing at low temperatures (18°–20°/15°–17 °C). The number of florets was not significantly affected by corm storage, forcing temperatures, or their interaction, although forcing at high temperatures tends to reduce the floret number. -
Redescubrimiento De "Romulea Bulbocodium" En La Provincia De Sevilla
ARTÍCULOS Botanica Complutensis ISSN-e: 1988-2874 http://dx.doi.org/10.5209/BOCM.63163 Redescubrimiento de Romulea bulbocodium en la provincia de Sevilla José Luis Medina-Gavilán1 Recibido: 2019-02-07 / Aceptado: 2019-03-29 / Publicado: 2019-06-06 Resumen. Se confirma la presencia de Romulea bulbocodium (L.) Sebast. & Mauri en la provincia de Sevilla, donde no se había citado desde 1861. Se trata de un geófito de distribución circunmediterránea, versátil en la ocupación del hábitat y ampliamente extendido en la Península Ibérica. Actualmente se consideraba ausente del territorio hispalense, donde continúa siendo una especie muy rara. Convive con Romulea ramiflora Ten. susbp. ramiflora. Palabras clave: Romulea bulbocodium; corología; pinares de Aznalcázar; bosque-isla; SO ibérico. Rediscovery of Romulea bulbocodium in the province of Seville Abstract. The presence of Romulea bulbocodium (L.) Sebast. & Mauri is confirmed in the province of Seville, where it had not been reported since 1861. Geophyte of circunmediterranean distribution, it is versatile in habitat occupancy and widespread in the Iberian Peninsula. It was considered absent of the territory of Seville, where it still considered as a very rare species. It coexists with Romulea ramiflora Ten. subsp. ramiflora. Keywords: Romulea bulbocodium; chorology; Aznalcázar Pine-forest; relictual forest-patch; Iberian SW. dium (L.) Sebast. & Mauri, R. columnae Se- Introducción bast. & Mauri, R. clusiana (Lange) Nyman, R. rollii Parl. y R. variicolor Mifsud (Cardiel Romulea Maratti (Iridaceae subfam. Crocoi- 2013, Fraga-Arguimbau et al. 2018). Parece deae Burnett) incluye unas 95 especies de mo- haber discrepancias en la resolución del es- nocotiledóneas petaloideas, cuyo centro de di- tatus taxonómico de Romulea bifrons Pau [= versidad se sitúa en zonas de clima mediterrá- R. -
Managing Watsonia Invasion in the Threatened Plant Communities of South-West Australia’S Clay-Based Wetlands
Managing Watsonia invasion in the threatened plant communities of south-west Australia’s clay-based wetlands. K. Brown, G. Paczkowska, B. Huston and N. Withnell. Department of Environment and Conservation, W.A. Email: [email protected] The Seasonal Clay-based Wetlands of South-west Australia While the majority of seasonal wetlands in south-west Australia are connected to the regional ground water, there are a series of wetlands found on clay substrates that rely solely on rainwater to fill. These wetlands are characterised by temporally overlapping suites of annual herbs that flower and set seed as the wetlands dry through spring. Over summer the clay substrates dry to impervious pans. The plant communities of clay-based wetlands comprise a flora of over 600. At least 50% are annual or perennial herbs, 16 occur only on the clay-pans and many are rare or restricted (Figure 1). The seasonally inundated clays that support these communities are relatively productive agricultural soils and many were cleared soon after settlement. Those that remained intact were largely located on the Swan Coastal Plain in close proximity to metropolitan Perth. In more recent years large areas have disappeared under urban development and today the plant communities of seasonal clay-based wetlands are amongst the most threatened in Western Australia. The small and fragmented nature of these remaining wetlands leaves them vulnerable to a range of threatening processes. In particular weed invasion, specifically by the South African geophyte Watsonia (Watsonia meriana var. bulbillifera), is a major threat. Watsonia can disperse via cormels (tiny corms that develop along the flowering stem at the end of the flowering season), into relatively undisturbed bushland remnants, forming dense stands that effectively displace the diverse herbaceous understorey (Figure 2). -
Watsonia Workshop Proceedings of a Workshop Held at the Department of Conservation and Land Management (CALM) on August 4 1993
Plant Protection Quarterly Vol.8(3) 1993 77 Watsonia Workshop Proceedings of a workshop held at the Department of Conservation and Land Management (CALM) on August 4 1993. Organized by CALMs Science and Information Division and funded by the WA Roadside Conservation Committee. Editors: J. Patrick Pigott, WA Herbarium, Science and Information Division, Department of Conservation and Land Management, PO Box 104, Como, WA 6152, Australia. C. Mary Gray, Environmental Scientist, 24 Hillview Road, Mt Lawley, WA 6050, Australia. Western Australian species of Watsonia Neville Marchant, Acting Director, WA Herbarium, Science and Information Division, Department of Conservation and Land Management, PO Box 104, Como, WA 6152, Australia. Introduction How and when did watsonias come with settlers who arrived in Western Aus- Watsonia in Western Australia is an unu- to WA? tralia well after Georgiana Molloy. sual weed group in that there are about The characteristic of Watsonia which There are 52 species of Watsonia recog- eight species of the one genus in the State. brought so many species to this State is nized in a comprehensive treatment pub- A whole suite of species and their vari- that they have very attractive flowers. In lished in 1989 by Peter Goldblatt who has ants were introduced as garden plants in January 1830, en route to Fremantle, when reviewed all of the species described since the early days of the Swan River Colony. travellers to Western Australia called into the first one was published in 1754. The In their native habitats in southern Af- Cape Town, Georgiana Molloy spent £7 type of study made by Goldblatt, system- rica there are about 52 species of Watsonia, 17s 6d on seeds from the Cape, among atic research, entails the detailed exami- 34 of them occurring in the Cape area them oleanders, Cape gooseberries and a nation of herbarium material and litera- which has a similar climate to that of pink lily, the Watsonia. -
The Effect of Slashing on the Growth of Watsonia Meriana (L.) Mill. Cv Bulbillifera in the Adelaide Hills
Plant Protection Quarterly Vol.8(3) 1993 85 ment of Conservation and Land Manage- ment and Mr. B. Lord of the Charles Sturt University, is gratefully acknowledged. The effect of slashing on the growth of Watsonia meriana (L.) Mill. cv bulbillifera in the Adelaide Hills References Australian Institute of Environmental Studies (1976). ‘The Threat of Weeds to P.A. Wilson and J.G. Conran, Department of Botany, University of Ad- Bushland, a Victorian Study’. (Inkata elaide, SA 5006, Australia. Press, Melbourne, Australia). Gillison, A.N. (1984). Gradient oriented sampling for resource surveys. In ‘Sur- Summary vey Methods for Nature Conservation’, In order to control Watsonia meriana cv suggested that it is merely a local sport ed. K. Myers and D.R. Margules. Vol 2. bulbillifera by slashing, it is necessary to which has been introduced into cultiva- Proceedings of Workshop 1983. prevent flowering and bulbil produc- tion. Currently Watsonia meriana cv Heddle, E.M. (1980). Effects of Changes in tion, as well as reduce the strength of the bulbillifera is considered a weed in Aus- Soil Moisture on the Nature Vegetation corm. The effects of slashing at a tralia, Mauritius, Réunion (Goldblatt of the Northern Swan Coastal Plain, number of heights, and at a range of 1989) and New Zealand (Parsons and Western Australia. Bulletin 92, Forests times throughout the plant’s life-history Cuthbertson 1992). The earliest record in Department of Western Australia. were investigated both for mature South Australia dates from 1842 at Lamont, D. A. (1987). Vegetation Survey plants and those derived from bulbils. Camden Park, Adelaide (Parsons and of Serpentine National Park, Map Plants derived from bulbils require Cuthbertson 1992). -
Biogeography of the Monocotyledon Astelioid Clade (Asparagales): a History of Long-Distance Dispersal and Diversification with Emerging Habitats
Zurich Open Repository and Archive University of Zurich Main Library Strickhofstrasse 39 CH-8057 Zurich www.zora.uzh.ch Year: 2021 Biogeography of the monocotyledon astelioid clade (Asparagales): A history of long-distance dispersal and diversification with emerging habitats Birch, Joanne L ; Kocyan, Alexander Abstract: The astelioid families (Asteliaceae, Blandfordiaceae, Boryaceae, Hypoxidaceae, and Lanari- aceae) have centers of diversity in Australasia and temperate Africa, with secondary centers of diversity in Afromontane Africa, Asia, and Pacific Islands. The global distribution of these families makes this an excellent lineage to test if current distribution patterns are the result of vicariance or long-distance dispersal and to evaluate the roles of tertiary climatic and geological drivers in lineage diversification. Sequence data were generated from five chloroplast regions (petL-psbE, rbcL, rps16-trnK, trnL-trnLF, trnS-trnSG) for 104 ingroup species sampled across global diversity. The astelioid phylogeny was inferred using maximum parsimony, maximum likelihood, and Bayesian inference methods. Divergence dates were estimated with a relaxed clock applied in BEAST. Ancestral ranges were reconstructed in ’BioGeoBEARS’ applying the corrected Akaike information criterion to test for the best-fit biogeographic model. Diver- sification rates were estimated in Bayesian Analysis of Macroevolutionary Mixtures [BAMM]. Astelioid relationships were inferred as Boryaceae(Blandfordiaceae(Asteliaceae(Hypoxidaceae plus Lanariaceae))). The crown astelioid node was dated to the Late Cretaceous (75.2 million years; 95% highest posterior densities interval 61.0-90.0 million years) with an inferred Eastern Gondwanan origin. However, aste- lioid speciation events have not been shaped by Gondwanan vicariance. Rather long-distance dispersal since the Eocene is inferred to account for current distributions. -
Wild Watsonia (DPI Vic)
May 2000 Wild watsonia LC0251 Keith Turnbull Research Institute, Frankston ISSN 1329-833X This Landcare Note describes the weed Wild watsonia, West Gippsland, the central highlands and the Geelong Watsonia meriana var. bulbillifera, and related species region. and outlines options for its management. Description Common Name An erect perennial herb forming large clumps; similar to Wild watsonia, bulbil watsonia gladiolus, with strap-like leaves, slender reddish flowering stems 0.5 to 2 m high, pink, orange or red flowers, Botanical Name underground corms and clusters of small corms (known as Watsonia meriana (L.) Miller var. bulbillifera (J.W. bulbils or cormils) on the stems. Leaves and flowering Matthews & L. Bolus) D.A. Cooke heads are produced annually. Family Iridaceae (Iris family) Status Under the Catchment and Land Protection Act, wild watsonia is a Regionally Controlled Weed in the Glenelg, Corangamite, Port Phillip West, Port Phillip East, North East, East Gippsland and West Gippsland Regions. Land owners in areas where wild watsonia is Regionally Controlled must take all reasonable steps to control it and prevent its spread on their land and the roadsides which adjoin their land. Wild watsonia is mainly a weed of roadsides, railway reserves, the edges of water courses, open woodland, unimproved pastures and neglected areas. Origin and Distribution Native to South Africa, wild watsonia was originally introduced to Australia as a garden ornamental. It was considered naturalised in Victoria by 1907 and was spread widely in the 1940s as a fashionable garden plant. It is also a weed in New Zealand and on the Indian Ocean islands of Mauritius and Reunion. -
Networks in a Large-Scale Phylogenetic Analysis: Reconstructing Evolutionary History of Asparagales (Lilianae) Based on Four Plastid Genes
Networks in a Large-Scale Phylogenetic Analysis: Reconstructing Evolutionary History of Asparagales (Lilianae) Based on Four Plastid Genes Shichao Chen1., Dong-Kap Kim2., Mark W. Chase3, Joo-Hwan Kim4* 1 College of Life Science and Technology, Tongji University, Shanghai, China, 2 Division of Forest Resource Conservation, Korea National Arboretum, Pocheon, Gyeonggi- do, Korea, 3 Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, United Kingdom, 4 Department of Life Science, Gachon University, Seongnam, Gyeonggi-do, Korea Abstract Phylogenetic analysis aims to produce a bifurcating tree, which disregards conflicting signals and displays only those that are present in a large proportion of the data. However, any character (or tree) conflict in a dataset allows the exploration of support for various evolutionary hypotheses. Although data-display network approaches exist, biologists cannot easily and routinely use them to compute rooted phylogenetic networks on real datasets containing hundreds of taxa. Here, we constructed an original neighbour-net for a large dataset of Asparagales to highlight the aspects of the resulting network that will be important for interpreting phylogeny. The analyses were largely conducted with new data collected for the same loci as in previous studies, but from different species accessions and greater sampling in many cases than in published analyses. The network tree summarised the majority data pattern in the characters of plastid sequences before tree building, which largely confirmed the currently recognised phylogenetic relationships. Most conflicting signals are at the base of each group along the Asparagales backbone, which helps us to establish the expectancy and advance our understanding of some difficult taxa relationships and their phylogeny. -
JOURNAL of JOURNAL of BOTANY Morphological and Anatomical Investigations of Romulea Bulbocodium Var. Bulbocodium and Romulea Bu
Thaiszia - J. Bot., Košice, 21: 65-72, 2011 THAISZIA http://www.bz.upjs.sk/thaiszia JOURNAL OF BOTANY Morphological and anatomical investigations of Romulea bulbocodium var. bulbocodium and Romulea bulbocodium var. leichtliniana (Iridaceae) CANAN ÖZDEMIR *, BAHITTIN BOZDA Ğ, YURDANUR AKYOL , UĞUR ŞEN , HAKAN SEPET , KADRIYE YETI ŞEN Department of Biology, Faculty of Science and Art, Celal Bayar University, Manisa- Turkey *Corresponding author: Phone: + 90 533 661 63 73; e-mail: [email protected] Özdemir C., Bozda ğ B., Akyol Y., Şen U., Sepet H. & Yeti şen K. (2011): Morphological and anatomical investigations of Romulea bulbocodium var. bulbocodium and Romulea bulbocodium var. leichtliniana (Iridaceae). – Thaiszia – J. Bot. 21: 65-72. – ISSN 1210-0420. Abstract: In this study, the morphological and anatomical features of Romulea bulbocodium var bulbocodium L. and Romulea bulbocodium (L.) Seb. & Mauri var. leichtliniana (Heldr. ex Hal.) Bég were studied. In the morphological part of the study, features of various organs of the plants such as corm, scape, leaf and flower were determined and illustrated. In anatomical studies, cross- section of the plants root, scape and leaf parts were examined and demonstrated. The anatomical properties of the two varieties were determined to be similar to each other and also to other species of the genus Romulea . The aim of this study is to demonstrate the characteristics of the two taxa evaluating the results obtained from morphological and anatomical investigations. Keywords: Iridaceae, anatomy, morphology , Romulea bulbocodium . Introduction Romulea Maratti is a member of the subfamily Crocoideae (syn. Ixioideae) in the family Iridaceae. Ixioideae, with over 800 species and about 30 genera, is the largest subfamily of Iridaceae (KUTBAY et al . -
Phylogeny of Iridaceae Subfamily Crocoideae Based on a Combined Multigene Plastid DNA Analysis Peter Goldblatt Missouri Botanical Garden
Aliso: A Journal of Systematic and Evolutionary Botany Volume 22 | Issue 1 Article 32 2006 Phylogeny of Iridaceae Subfamily Crocoideae Based on a Combined Multigene Plastid DNA Analysis Peter Goldblatt Missouri Botanical Garden T. Jonathan Davies Royal Botanic Gardens, Kew John C. Manning National Botanical Institute Kirstenbosch Michelle van der Bank Rand Afrikaans University Vincent Savolainen Royal Botanic Gardens, Kew Follow this and additional works at: http://scholarship.claremont.edu/aliso Part of the Botany Commons Recommended Citation Goldblatt, Peter; Davies, T. Jonathan; Manning, John C.; van der Bank, Michelle; and Savolainen, Vincent (2006) "Phylogeny of Iridaceae Subfamily Crocoideae Based on a Combined Multigene Plastid DNA Analysis," Aliso: A Journal of Systematic and Evolutionary Botany: Vol. 22: Iss. 1, Article 32. Available at: http://scholarship.claremont.edu/aliso/vol22/iss1/32 MONOCOTS Comparative Biology and Evolution Excluding Poales Aliso 22, pp. 399-41 I © 2006, Rancho Santa Ana Botanic Garden PHYLOGENY OF IRIDACEAE SUBFAMILY CROCOIDEAE BASED ON A COMBINED MULTIGENE PLASTID DNA ANALYSIS 1 5 2 PETER GOLDBLATT, · T. JONATHAN DAVIES, JOHN C. MANNING,:l MICHELLE VANDER BANK,4 AND VINCENT SAVOLAINEN2 'B. A. Krukoff Curator of African Botany, Missouri Botanical Garden, St. Louis, Missouri 63166, USA; 2Molecular Systematics Section, Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3DS, UK; 3National Botanical Institute, Kirstenbosch, Private Bag X7, Cape Town, South Africa; 4 Botany Department, Rand Afrikaans University, Johannesburg, South Africa 5 Corresponding author ([email protected]) ABSTRACT The phylogeny of Crocoideae, the largest of four subfamilies currently recognized in Tridaceae, has eluded resolution until sequences of two more plastid DNA regions were added here to a previously published matrix containing sequences from four DNA plastid regions. -
Wild Watsonia Common and Scientific Names
Source: http://agriculture.vic.gov.au/agriculture/pests-diseases-and-weeds/weeds/a-z-of- weeds/wild-watsonia Downloaded 15/12/2015. Wild Watsonia Common and scientific names Wild watsonia, bulbil watsonia Watsonia meriana (L.) Miller var. bulbillifera (J.W. Matthews & L. Bolus) D.A. Cooke Family Iridaceae (Iris family) Origin and distribution Native to South Africa, wild watsonia was originally introduced to Australia as a garden ornamental. It was considered naturalised in Victoria by 1907 and was spread widely in the 1940s as a fashionable garden plant. It is also a weed in New Zealand and on the Indian Ocean islands of Mauritius and Reunion. It has a number of undesirable horticultural features and may best be classified as a variety that evolved naturally in an environment subject to human disturbance rather than a cultivar. Fertile plants producing seed are rare in Australia and some authors consider bulbil watsonia to be sterile. Wild watsonia is found through most of the State except for the north-west, but mainly occurs as an environmental weed in depressions and swampy areas on heavier soils in southern Victoria, particularly in the Melbourne area, Dandenong Ranges, Mornington Peninsula, South and West Gippsland, the central highlands and the Geelong region. Description An erect perennial herb forming large clumps; similar to gladiolus, with strap-like leaves, slender reddish flowering stems 0.5 to 2 m high, pink, orange or red flowers, underground corms and clusters of small corms (known as bulbils or cormils) on the stems. Leaves and flowering heads are produced annually. Corms and cormils start to grow in late autumn and foliage is produced during the winter. -
Prospects for Biological Control of Watsonia Species Species (Table 1)
90 Plant Protection Quarterly Vol.8(3) 1993 Kloot, P.M. (1987c). The naturalized flora of South Australia. 3. Its origin, intro- duction, distribution, growth forms and significance. Journal of the Adelaide Botanic Gardens 10, 99-111. Menz, K.M. and Auld, B.A. (1977). Gal- vanized burr control and public policy toward weeds. Search 8, 281-7. Pate, J.S. and Dixon, K.W. (1982). ‘Tuber- ous, cormous and bulbous plants’. (University of Western Australia Press, Nedlands). Parsons, W.T. and Cuthbertson, E.G. (1992). ‘Noxious weeds of Australia’. (Inkata Press, Melbourne, Australia). Phillips, R. and Rix, M. (1989). ‘Bulbs’. 2nd edition. (Pan Books, London, UK). Wilkinson, L. (1990). Systat, the system for statistics, version 5.0. Systat Inc., Champaign, Illinois, USA. Zar, J.H. (1986). ‘Biostatistical analysis’. 2nd edition. (Prentice-Hall, New Jer- sey, USA). Figure 6. The response of corm production to slashing at selected intervals. The time interval between 1, 2 and 3 is two weeks; the remaining intervals one week. Labels indicate those points which are significantly different: Gumeracha (g), Balhannah (b), both of the other sites (*). erences to organisms attacking Watsonia Prospects for biological control of Watsonia species species (Table 1). Most records are of polyphagous or pest organisms and need not be considered further. Le Maitre John K. Scott, CSIRO Division of Entomology, Private Bag, PO Wembley, (1984) observed that up to 78.1% of ova- WA 6014, Australia. ries had been bored or partly eaten by in- sects in a study of seed predation of Summary concern with the invasion of Watsonia Watsonia borbonica (Pourret) Goldblatt in Watsonia species are suitable targets for species into native vegetation has lead to South Africa.