AN OVERVIEW of the CAPE GEOPHYTES S
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Summary of Offerings in the PBS Bulb Exchange, Dec 2012- Nov 2019
Summary of offerings in the PBS Bulb Exchange, Dec 2012- Nov 2019 3841 Number of items in BX 301 thru BX 463 1815 Number of unique text strings used as taxa 990 Taxa offered as bulbs 1056 Taxa offered as seeds 308 Number of genera This does not include the SXs. Top 20 Most Oft Listed: BULBS Times listed SEEDS Times listed Oxalis obtusa 53 Zephyranthes primulina 20 Oxalis flava 36 Rhodophiala bifida 14 Oxalis hirta 25 Habranthus tubispathus 13 Oxalis bowiei 22 Moraea villosa 13 Ferraria crispa 20 Veltheimia bracteata 13 Oxalis sp. 20 Clivia miniata 12 Oxalis purpurea 18 Zephyranthes drummondii 12 Lachenalia mutabilis 17 Zephyranthes reginae 11 Moraea sp. 17 Amaryllis belladonna 10 Amaryllis belladonna 14 Calochortus venustus 10 Oxalis luteola 14 Zephyranthes fosteri 10 Albuca sp. 13 Calochortus luteus 9 Moraea villosa 13 Crinum bulbispermum 9 Oxalis caprina 13 Habranthus robustus 9 Oxalis imbricata 12 Haemanthus albiflos 9 Oxalis namaquana 12 Nerine bowdenii 9 Oxalis engleriana 11 Cyclamen graecum 8 Oxalis melanosticta 'Ken Aslet'11 Fritillaria affinis 8 Moraea ciliata 10 Habranthus brachyandrus 8 Oxalis commutata 10 Zephyranthes 'Pink Beauty' 8 Summary of offerings in the PBS Bulb Exchange, Dec 2012- Nov 2019 Most taxa specify to species level. 34 taxa were listed as Genus sp. for bulbs 23 taxa were listed as Genus sp. for seeds 141 taxa were listed with quoted 'Variety' Top 20 Most often listed Genera BULBS SEEDS Genus N items BXs Genus N items BXs Oxalis 450 64 Zephyranthes 202 35 Lachenalia 125 47 Calochortus 94 15 Moraea 99 31 Moraea -
The Effect of Cultivation and Plant Age on the Pharmacological Activity of Merwilla Natalensis Bulbs
South African Journal of Botany 2005, 71(2): 191–196 Copyright © NISC Pty Ltd Printed in South Africa — All rights reserved SOUTH AFRICAN JOURNAL OF BOTANY ISSN 1727–9321 The effect of cultivation and plant age on the pharmacological activity of Merwilla natalensis bulbs SG Sparg, AK Jäger and J van Staden* Research Centre for Plant Growth and Development, University of KwaZulu-Natal Pietermaritzburg, Private Bag X01, Scottsville 3209, South Africa * Corresponding author, e-mail: [email protected] Received 5 March 2004, accepted in revised form 27 August 2004 Merwilla natalensis bulbs were cultivated at two thesis by COX-1, with activity decreasing as the bulbs different sites under different treatments. Bulbs were matured. The cultivation treatments had a significant harvested every six months for a period of two years effect on the antihelmintic activity of bulbs cultivated at and were tested for antibacterial, anti-inflammatory and the Fort Hare site. Results suggest that irrigation might anthelmintic activity. The cultivation treatments had no increase the antihelmintic activity of the bulbs if culti- significant effect (P ≤ 0.05) on neither the antibacterial vated in areas of low rainfall. The age of the bulbs at activity, nor the anti-inflammatory activity. However, the both sites had a significant effect on the antihelmintic age of the bulbs had a significant effect against the test activity, with activity increasing with plant maturity. bacteria and on the inhibition of prostaglandin syn- Introduction Merwilla natalensis (Planchon) Speta (synonym Scilla varied when the plants were grown in different geographical natalensis) is ranked as one of the more commonly-sold regions. -
Hemipiliopsis, a New Genus of Orchidaceae
Hemipiliopsis, a New Genus of Orchidaceae Yibo Luo and Singchi Chen (Xinqi Chen) Laboratory of Systematic & Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Beijing, 100093, People's Republic of China. [email protected] ABSTRACT. Hemipiliopsis, a monotypic new genus Hoc genus novum Hemipiliae et Habenariae simile, sed of Orchidaceae, is described based on H. purpureo- ab ambobus forma calcaris, a priore viscidiis plus minusve expositis, stigmatis lobulis duobus elongato-pulvinatis, a punctata (K. Y. Lang) Y. B. Luo & S. C. Chen (Ha- posteriore planta (cum caule, folio, pedunculis, rachidi, benaria purpureopunctata K. Y. Lang) from south- bracteis, pedicellis, ovariis, sepalis et petalis) purpureo- eastern Xizang (Tibet). Its possible relationships to punctata, stigmatis lobulis parieti postico cavitatis af®xis, Brachycorythis, Hemipilia, and Habenaria are dis- atque rostello magno differt. cussed. Terrestrial herb; tubers ellipsoid or subellipsoid, Key words: China, Hemipiliopsis, Orchidaceae. ¯eshy. Stem erect, usually with one leaf near the base. Leaf elliptic to ovate-oblong, acuminate or While the senior author worked on the genus acute, amplexicaul at base. In¯orescence loosely Hemipilia Lindley, he felt it dif®cult to treat a spe- several- to many-¯owered, spotted with purple on cies that is very similar in habit to Hemipilia but rachis and peduncle; bracts ovate-lanceolate, with was described by Lang (Lang & Tsi, 1978) as Ha- evident purple spots dorsally; pedicel and ovary benaria purpureopunctata K. Y. Lang. Moreover, with purple spots. Flowers spotted with purple ex- Lang mentioned that this generic placement was cept the lip; dorsal sepal erect, oblong, concave, based on the presence of a small rostellum, naked forming a hood together with petals; lateral sepals viscidia, and two protruding clavate stigmas (Lang obliquely ovate-elliptic, usually 6 re¯exed; petals & Tsi, 1978). -
Orchid Pollination: an Observation on Pollination-Pollinator Interaction in Cymbidium Pendulum (Sw.) Roxb
Current Botany 2011, 2(7): 05-08 ISSN: 2220-4822 www.scholarjournals.org www.currentbotany.org Orchid Pollination: An Observation on Pollination-Pollinator Interaction in Cymbidium pendulum (Sw.) Roxb. Lucky K. Attri* and Ravi Kant Department of Botany, Panjab University, Chandigarh-160 014, India Article Info Abstract Article History The path of pollination in Cymbidium pendulum (Sw.) Roxb. has been traced in the present studies. The honey been identified as Apis mellifera was found to act as main pollinator and Received : 20-04-2011 this bee is the only insects, among others, who succeeded in performing pollination because Revised : 29-06-2011 Accepted : 29-06-2011 probably due to its structural compatibility with the plant species. Pollination by Apis mellifera bees was suggested to occur in a number of families but rare phenomenon in orchids and it *Corresponding Author is first time that the species was observed to pollinate the Cymbidium pendulum flowers. Bee moved around the flowers for some times, entered the flower and carried on pollinia along Tel : +91-9501034074 with on the back during its journey. It revisited the different flower and deposited its pollinia on to it and the act of pollination was accomplished. SEM study showed an intricate network Email: [email protected] on the back of bee thus clearly indicates its role in firm attachment to pollinia. [email protected] ©ScholarJournals, SSR Key Words: Bees, insect, pollination, pollinator, SEM Introduction Orchidaceae, one of the largest families of flowering habitats (North-East India)] with one of the insects present in plants (up to 30 000 species, and contributing nearly 10% of all the locality (iii) to evaluate the influence of pollinators on flowering plant species in the world [1-3], is characterized by its reproductive success; and (iv) to assess the extent of fruit floral structure generally specialized to avoid spontaneous self- production by bee pollination. -
Holothrix Klimkoana Szlach. & Marg. (Orchidaceae
Candollea 61(2): 467-470 (2006) Holothrix klimkoana Szlach. & Marg. (Orchidaceae, Orchidoideae), a new species from Angola DARIUSZ L. SZLACHETKO & HANNA B. MARGONSKA ABSTRACT SZLACHETKO, D. L. & H. B. MARGONSKA (2006). Holothrix klimkoana Szlach. & Marg. (Orchidaceae, Orchidoideae), a new species from Angola. Candollea 61: 467-470. In English, English and French abstracts. Holothrix klimkoana Szlach. & Marg. (Orchidaceae, Orchidoideae), new species from Angola, is described, illustrated and compared to its closest relative, H. longiflora Rolfe. RÉSUMÉ SZLACHETKO, D. L. & H. B. MARGONSKA (2006). Holothrix klimkoana Szlach. & Marg. (Orchidaceae, Orchidoideae), une nouvelle espèce décrite d’Angola. Candollea 61: 467-470. En anglais, résumés anglais et français. Holothrix klimkoana Szlach. & Marg. (Orchidaceae, Orchidoideae), nouvelle espèce d’Angola, est décrite, illustrée et comparée au taxon le plus proche, H. longiflora Rolfe. KEY-WORDS: ORCHIDACEAE – ORCHIDOIDEAE – Holothrix – Africa The genus Holothrix was described by LINDLEY (1835). It embraces about 50-60 species distributed widely in Africa with a few in tropical Arabia. They are characterized by 1 or 2 small, ellipsoid or ovoid tubers. The one or two leaves are sessile, reniform, ovate to orbicular, radical, often papillose or hairy. The stem is erect with or without cauline bracts, glabrous, papillose or hairy. The inflorescence is terminal, many-flowered. The flowers are resupinate, often secund, sessile to pedicellate, tubular or widened apically. The sepals are usually smaller than the petals, often hairy. The petals are usually divided into 3 or more fleshy, finger-lik e or filiform segments. The lip is similar to the petals with a cylindrical spur (SZLACHETKO & OLSZEWSKI, 1998; PRIDGEON & al., 2001). -
Phylogenetics of Tribe Orchideae (Orchidaceae: Orchidoideae)
Annals of Botany 110: 71–90, 2012 doi:10.1093/aob/mcs083, available online at www.aob.oxfordjournals.org Phylogenetics of tribe Orchideae (Orchidaceae: Orchidoideae) based on combined DNA matrices: inferences regarding timing of diversification and evolution of pollination syndromes Luis A. Inda1,*, Manuel Pimentel2 and Mark W. Chase3 1Escuela Polite´cnica Superior de Huesca, Universidad de Zaragoza, carretera de Cuarte sn. 22071 Huesca, Spain, 2Facultade de Ciencias, Universidade da Corun˜a, Campus da Zapateira sn. 15071 A Corun˜a, Spain and 3Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3DS, UK * For correspondence. E-mail [email protected] Received: 3 November 2011 Returned for revision: 9 December 2011 Accepted: 1 March 2012 Published electronically: 25 April 2012 † Background and aims Tribe Orchideae (Orchidaceae: Orchidoideae) comprises around 62 mostly terrestrial genera, which are well represented in the Northern Temperate Zone and less frequently in tropical areas of both the Old and New Worlds. Phylogenetic relationships within this tribe have been studied previously using only nuclear ribosomal DNA (nuclear ribosomal internal transcribed spacer, nrITS). However, different parts of the phylogenetic tree in these analyses were weakly supported, and integrating information from different plant genomes is clearly necessary in orchids, where reticulate evolution events are putatively common. The aims of this study were to: (1) obtain a well-supported and dated phylogenetic hypothesis for tribe Orchideae, (ii) assess appropriateness of recent nomenclatural changes in this tribe in the last decade, (3) detect possible examples of reticulate evolution and (4) analyse in a temporal context evolutionary trends for subtribe Orchidinae with special emphasis on pollination systems. -
Orchids: 2017 Global Ex Situ Collections Assessment
Orchids: 2017 Global Ex situ Collections Assessment Botanic gardens collectively maintain one-third of Earth's plant diversity. Through their conservation, education, horticulture, and research activities, botanic gardens inspire millions of people each year about the importance of plants. Ophrys apifera (Bernard DuPon) Angraecum conchoglossum With one in five species facing extinction due to threats such (Scott Zona) as habitat loss, climate change, and invasive species, botanic garden ex situ collections serve a central purpose in preventing the loss of species and essential genetic diversity. To support the Global Strategy for Plant Conservation, botanic gardens create integrated conservation programs that utilize diverse partners and innovative techniques. As genetically diverse collections are developed, our collective global safety net against plant extinction is strengthened. Country-level distribution of orchids around the world (map data courtesy of Michael Harrington via ArcGIS) Left to right: Renanthera monachica (Dalton Holland Baptista ), Platanthera ciliaris (Wikimedia Commons Jhapeman) , Anacamptis boryi (Hans Stieglitz) and Paphiopedilum exul (Wikimedia Commons Orchi ). Orchids The diversity, stunning flowers, seductiveness, size, and ability to hybridize are all traits which make orchids extremely valuable Orchids (Orchidaceae) make up one of the largest plant families to collectors, florists, and horticulturists around the world. on Earth, comprising over 25,000 species and around 8% of all Over-collection of wild plants is a major cause of species flowering plants (Koopowitz, 2001). Orchids naturally occur on decline in the wild. Orchids are also very sensitive to nearly all continents and ecosystems on Earth, with high environmental changes, and increasing habitat loss and diversity found in tropical and subtropical regions. -
Trade in Zambian Edible Orchids—DNA Barcoding Reveals the Use of Unexpected Orchid Taxa for Chikanda
G C A T T A C G G C A T genes Article Trade in Zambian Edible Orchids—DNA Barcoding Reveals the Use of Unexpected Orchid Taxa for Chikanda Sarina Veldman 1,* , Seol-Jong Kim 1 , Tinde R. van Andel 2 , Maria Bello Font 3, Ruth E. Bone 4, Benny Bytebier 5 , David Chuba 6, Barbara Gravendeel 2,7,8 , Florent Martos 5,9 , Geophat Mpatwa 10, Grace Ngugi 5,11, Royd Vinya 10, Nicholas Wightman 12, Kazutoma Yokoya 4 and Hugo J. de Boer 1,2 1 Department of Organismal Biology, Systematic Biology, Uppsala University, Norbyvägen 18D, 75236 Uppsala, Sweden; [email protected] (S.-J.K.); [email protected] (H.J.d.B.) 2 Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, The Netherlands; [email protected] (T.R.v.A.); [email protected] (B.G.) 3 Natural History Museum, University of Oslo, Postboks 1172, Blindern, 0318 Oslo, Norway; [email protected] 4 Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AB, UK; [email protected] (R.E.B.); [email protected] (K.Y.) 5 Bews Herbarium, School of Life Sciences, University of KwaZulu-Natal, Pr. Bag X01, Scottsville 3209, South Africa; [email protected] (B.B.); fl[email protected] (F.M.); [email protected] (G.N.) 6 Department of Biological Sciences, University of Zambia, Box 32379 Lusaka, Zambia; [email protected] 7 Institute of Biology Leiden, Leiden University, P.O. Box 9505, 2300 RA Leiden, The Netherlands 8 University of Applied Sciences Leiden, Zernikedreef 11, 2333 CK Leiden, The Netherlands 9 Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d’histoire naturelle, CNRS, Sorbonne Université, EPHE, CP50, 45 rue Buffon 75005 Paris, France 10 School of Natural Resources, The Copperbelt University, PO Box 21692 Kitwe, Zambia; [email protected] (G.M.); [email protected] (R.V.) 11 East African Herbarium, National Museums of Kenya, P.O. -
Biodiversity and Ecology of Critically Endangered, Rûens Silcrete Renosterveld in the Buffeljagsrivier Area, Swellendam
Biodiversity and Ecology of Critically Endangered, Rûens Silcrete Renosterveld in the Buffeljagsrivier area, Swellendam by Johannes Philippus Groenewald Thesis presented in fulfilment of the requirements for the degree of Masters in Science in Conservation Ecology in the Faculty of AgriSciences at Stellenbosch University Supervisor: Prof. Michael J. Samways Co-supervisor: Dr. Ruan Veldtman December 2014 Stellenbosch University http://scholar.sun.ac.za Declaration I hereby declare that the work contained in this thesis, for the degree of Master of Science in Conservation Ecology, is my own work that have not been previously published in full or in part at any other University. All work that are not my own, are acknowledge in the thesis. ___________________ Date: ____________ Groenewald J.P. Copyright © 2014 Stellenbosch University All rights reserved ii Stellenbosch University http://scholar.sun.ac.za Acknowledgements Firstly I want to thank my supervisor Prof. M. J. Samways for his guidance and patience through the years and my co-supervisor Dr. R. Veldtman for his help the past few years. This project would not have been possible without the help of Prof. H. Geertsema, who helped me with the identification of the Lepidoptera and other insect caught in the study area. Also want to thank Dr. K. Oberlander for the help with the identification of the Oxalis species found in the study area and Flora Cameron from CREW with the identification of some of the special plants growing in the area. I further express my gratitude to Dr. Odette Curtis from the Overberg Renosterveld Project, who helped with the identification of the rare species found in the study area as well as information about grazing and burning of Renosterveld. -
Orchid Seed Coat Morphometrics. Molvray and Kores. 1995
American Journal of Botany 82(11): 1443-1454. 1995 . CHARACTER ANALYSIS OF THE SEED COAT IN SPIRANTHOIDEAE AND ORCHIDOIDEAE, WITH SPECIAL REFERENCE TO THE DIURIDEAE (ORCHIDACEAE)I MIA MOLVRAy2 AND PAUL J. KORES Department of Biological Sciences, Loyola University, New Orleans, Louisiana 70118 Previous work on seed types within Orchidaceae has demonstrated that characters associated with the seed coat may have considerable phylogenetic utility. Application of the se characters has been complicated in practice by the absence of quan titative descriptors and in some instances by their apparent lack of congruity with the taxa under con sideration. Using quantitative descriptors of size and shape, we have demonstrated that some of the existing seed classes do not represent well delimited, discrete entities, and we have proposed new seed classes to meet these criteria. In the spiranthoid-orchidoid complex, the characters yielding the most clearly delimited shape classes are cell number and variability and degree and stochasticity of medial cell elongation. Of lesser, but still appreciable, significance are the pre sence of varying types and degrees of intercellular gaps, and some, but not all, features of cell walls. Four seed classes are evident on the basis of these characters in Spiranthoideae and Orchidoideae. These seed types are briefly described, and their distribution among the taxa examined for this study is reported. It is hoped that these more strictly delimited seed classes will faci litate phylogenetic analysis in the family. Phylogenetic relationships within the Orchidaceae delimitation of the seed coat characters within the two have been discussed extensively in a series of recent pub putatively most primitive subfamilies of monandrous or lications by Garay (1960, 1972), Dressler (1981, 1986, chids and evaluates the util ity of these characters for the 1990a, b, c, 1993), Rasmussen (1982, 1986), Burns-Bal purpose of phylogenetic inference, extends this avenue of ogh and Funk (1986), and Chase et aI. -
TAXON:Schizobasis Intricata SCORE:1.0 RATING:Low Risk
TAXON: Schizobasis intricata SCORE: 1.0 RATING: Low Risk Taxon: Schizobasis intricata Family: Hyacinthaceae Common Name(s): climbing onion Synonym(s): Anthericum intricatum Baker losbol Drimia intricata (Baker) J.C.Manning Schizobasis& Goldblatt dinteri K.Krause Schizobasis macowanii Baker Assessor: Chuck Chimera Status: Assessor Approved End Date: 26 Jun 2015 WRA Score: 1.0 Designation: L Rating: Low Risk Keywords: Geophyte, Bulb-forming, Self-fertile, Seed Producing, Atelechorous Qsn # Question Answer Option Answer 101 Is the species highly domesticated? y=-3, n=0 n 102 Has the species become naturalized where grown? 103 Does the species have weedy races? Species suited to tropical or subtropical climate(s) - If 201 island is primarily wet habitat, then substitute "wet (0-low; 1-intermediate; 2-high) (See Appendix 2) High tropical" for "tropical or subtropical" 202 Quality of climate match data (0-low; 1-intermediate; 2-high) (See Appendix 2) High 203 Broad climate suitability (environmental versatility) Native or naturalized in regions with tropical or 204 y=1, n=0 y subtropical climates Does the species have a history of repeated introductions 205 y=-2, ?=-1, n=0 ? outside its natural range? 301 Naturalized beyond native range y = 1*multiplier (see Appendix 2), n= question 205 n 302 Garden/amenity/disturbance weed n=0, y = 1*multiplier (see Appendix 2) n 303 Agricultural/forestry/horticultural weed n=0, y = 2*multiplier (see Appendix 2) n 304 Environmental weed n=0, y = 2*multiplier (see Appendix 2) n 305 Congeneric weed n=0, y = -
Phylogeny, Character Evolution and the Systematics of Psilochilus (Triphoreae)
THE PRIMITIVE EPIDENDROIDEAE (ORCHIDACEAE): PHYLOGENY, CHARACTER EVOLUTION AND THE SYSTEMATICS OF PSILOCHILUS (TRIPHOREAE) A Dissertation Presented in Partial Fulfillment of the Requirements for The Degree Doctor of Philosophy in the Graduate School of the Ohio State University By Erik Paul Rothacker, M.Sc. ***** The Ohio State University 2007 Doctoral Dissertation Committee: Approved by Dr. John V. Freudenstein, Adviser Dr. John Wenzel ________________________________ Dr. Andrea Wolfe Adviser Evolution, Ecology and Organismal Biology Graduate Program COPYRIGHT ERIK PAUL ROTHACKER 2007 ABSTRACT Considering the significance of the basal Epidendroideae in understanding patterns of morphological evolution within the subfamily, it is surprising that no fully resolved hypothesis of historical relationships has been presented for these orchids. This is the first study to improve both taxon and character sampling. The phylogenetic study of the basal Epidendroideae consisted of two components, molecular and morphological. A molecular phylogeny using three loci representing each of the plant genomes including gap characters is presented for the basal Epidendroideae. Here we find Neottieae sister to Palmorchis at the base of the Epidendroideae, followed by Triphoreae. Tropidieae and Sobralieae form a clade, however the relationship between these, Nervilieae and the advanced Epidendroids has not been resolved. A morphological matrix of 40 taxa and 30 characters was constructed and a phylogenetic analysis was performed. The results support many of the traditional views of tribal composition, but do not fully resolve relationships among many of the tribes. A robust hypothesis of relationships is presented based on the results of a total evidence analysis using three molecular loci, gap characters and morphology. Palmorchis is placed at the base of the tree, sister to Neottieae, followed successively by Triphoreae sister to Epipogium, then Sobralieae.