Ceropegia arnottiana

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Ceropegia arnottiana
Systematics
Family : Dog poison family (Apocynaceae)
Subfamily : Silk plants (Asclepiadoideae)
Tribe : Ceropegieae
Sub tribus : Stapeliinae
Genre : Candlestick flowers ( Ceropegia )
Type : Ceropegia arnottiana
Scientific name
Ceropegia arnottiana
Wight

Ceropegia arnottiana is a species of the subfamily of the silk plant family (Asclepiadoideae).

features

Vegetative characteristics

Ceropegia arnottiana is a perennial , herbaceous plant with spherical tubers . The shoots are twisting, or creeping, and bare. Leaves are short stalked, the stems are 0.6 to 1.25 cm ("¼ to ½ inch") long. The rather stiff leaf blades are narrowly lanceolate to linear, 7.5 to 12.5 cm ("3 to 5 inches") long and 0.6 to 2.5 cm ("¼ to 1 inch") wide. The blades are hairy or bald or very finely downy.

Inflorescence and flowers

The 2 to many-flowered inflorescence is more or less long stalked, the somewhat hairy stalks are 0.6 to 2.5 cm long. The sepals are approx. 6 mm long. The five-fold, hermaphrodite flowers are zygomorphic and provided with a double flower cover. The corolla is 2.7 to 5.4 cm long, the five petals are fused to form a bare corolla tube ( sympetalie ). The corolla tube is inflated ovoid in the lower quarter to third. The corolla tube is colored green, with very fine, purple longitudinal stripes in the area of ​​the crown bowl. The petal tips are narrow, linear, 1.5 to 3.2 cm long and fused with the ends. They form an elongated-elliptical, cage-like structure. The lamina of the tip are completely bent back over the triangular base along the midrib, and they gape again slightly towards the upper end. The tips are bare inside, the outer edges are ciliate. The "cage" is green in the lower half and purple in the upper half. The secondary crown is sessile. The tips of the interstaminal, outer secondary crown are triangular, incised in the middle and thus form two triangular processes. The tips of the staminal, inner secondary crown are linearly shaped and stand upright.

Fruits and seeds

The smooth follicles are around 10 cm ("4 inches") long, the linear-elongated seeds are around 2.5 mm ("1/10 inch") long.

Similar species

The species is closely related to Ceropegia pusilla and Ceropegia aridicola . The flower resembles the flower of Ceropegia stenantha .

Geographical distribution and ecology

The distribution area extends from the Indian states of Goa and Karnataka in the west and south, over the northeast Indian state of Meghalaya , on to Thailand and Myanmar ( Bago , Yangon ).

The species grows there in tropical forests from around 30 m to 1050 m above sea level. It blooms in September in the Indian state of Meghalaya.

Systematics and taxonomy

The taxon was first described in 1834 by Robert Wight in the Contributions to the Botany of India (p. 32). The taxon is accepted as a valid taxon in both the Plant List and the Ceropegia Checklist .

supporting documents

literature

  • MY Ansari: Asclepiadaceae: Genus Ceropegia. In: Fascicles of Flora of India , Fascicle 16, 1984, pp. 1-34, Botanical Survey of India, Howrah (p. 9)
  • Joseph Dalton Hooker (assisted by various botanists): The flora of British India. Volume 4. Asclepiadeae to Amarantaceae. London, Reeve & Co., 1885. Online at www.biodiversitylibrary.org (p. 74)
  • Herbert H. Huber: Revision of the genus Ceropegia. In: Memórias da Sociedade Broteriana , Volume 12, 1957, pp. 1–203, Coimbra (pp. 52/3)
  • AP Jagtap, N. Singh, N .: Asclepiadaceae and Periplocaceae. In: Fascicles of Flora of India , Fascicle 24, 1999, pp. 211-241, Botanical Survey of India, Kolkata (p. 215).
  • W. John Kress, Robert A DeFilipps, Ellen Farr, Daw Yin Yin Kyi: A Checklist of the Trees, Shrubs, Herbs, and Climbers of Myanmar. In: Contributions from the United States National Herbarium , Volume 45, 2003, pp. 1–590 PDF (29.4 MB!)
  • Ulrich Meve: Ceropegia . In: Focke Albers, Ulrich Meve (Hrsg.): Succulents Lexicon Volume 3 Asclepiadaceae (silk plants) . Pp. 61–107, Eugen Ulmer Verlag, Stuttgart 2002. ISBN 3-8001-3982-0 (p. 67)

Individual evidence

  1. ^ William Grant Craib, Arthur Francis George Kerr: Florae Siamensis Enumeratio: Asclepiadaceae to Gesneriaceae. Siam Society, Bangkok times Press, Limited, 1951
  2. ↑ K. Sri Rama Murthy, R. Kondamudi, M. Chandrasekhara Reddy, S. Karuppusamy, T. Pullaiah: Check-list and conservation strategies of the genus Ceropegia in India. International Journal of Biodiversity and Conservation, Volume 4, No. 8, 2012, pp. 304-315 doi : 10.5897 / IJBC12.011
  3. ^ Robert Wight: Contributions to the Botany of India. 136 pp., London, Parbury, Allen & Co, 1834 Online at Google Books
  4. ^ Rafael Govaerts (ed.): World Checklist of Selected Plant Families (in review): Ceropegia. Published in: The Plant List. A working list of all plant species. Royal Botanic Gardens Kew, Missouri Botanical Garden, accessed December 2, 2011.
  5. ↑ Ulrich Meve: Ceropegia Checklist. A guide to alternative names used in recent Ceropegia classification. In: Dennis de Kock, Ulrich Meve: A Checklist of Brachystelma, Ceropegia and the genera of the Stapeliads. International Asclepiad Society 2007, pp. 83-113.

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