Ceropegia elegans

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Ceropegia elegans
Ceropegia elegans (Illustration from Curtis's Botanical Magazine, Volume 57, Plate 3015, 1830)

Ceropegia elegans (Illustration from Curtis's Botanical Magazine , Volume 57, Plate 3015, 1830)

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

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

Description, phenology and ecology

Appearance and leaf

Ceropegia elegans is a perennial , herbaceous plant . It has fiber roots . The leaves are divided into a petiole and a leaf blade. The very slender petiole is about 1.9 to 2.5 cm long. The slightly fleshy leaf blades are ovate with a length of 5 to 10 cm and a width of 2.5 to 3.75 cm with a pointed or pointed upper end.

Inflorescence and flower

The inflorescence stem is 1.25 to 5 cm long. The inflorescence contains only three to five flowers. The bracts are subpulate. The flower stalk is short. The hermaphrodite flowers are zygomorphic and five-fold with a double flower envelope . The five sepals are thread-shaped and glabrous. The corolla is about 3.2 to 4.5 cm long. The five petals are fused in the lower part to form an externally bare, strongly curved corolla tube ( sympetalie ). The lower part ("Kronkessel") is spherical or elongated-inflated. Above this, the corolla tube narrows to expand in a funnel shape towards the mouth of the flower, where it has a diameter of 1.9 to 2.5 cm. The "crown kettle" has purple stripes, the upper part of the crown tube is densely covered with purple spots. The tips of the interstaminal , outer secondary crown are 1.25 mm long and incised in the middle; Thus the outer secondary crown shows ten similar, linearly shaped appendages with purple spots. The purple-colored, bald tips of the staminal , inner secondary crown are sub-like with a length of about 2 mm, stand upright and incline towards the outer end. Ansari (1984) and Jagtap et al. (1999) give June to December as the flowering period . The fertilization occurs by small flies.

Fruit and seeds

The very slender, round, membranous follicles are about 18 to 23 cm long. The seeds are linear in outline with a length of about 1.25 cm. The fruits were observed from December to April.

Chromosome number

The chromosome number is 2n = 66.

Occurrence

Ceropegia elegans occurs in the Indian states of Karnataka , Kerala and Tamil Nadu and Myanmar . It thrives there at altitudes of around 1000 to 2000 meters.

Taxonomy

The first description of Ceropegia elegans was in 1830 by Nathaniel Wallich in Curtis's Botanical Magazine , Volume 57, Plate 3015. Another figure was published in 1835 by John Lindley on Plate 1706 in Volume 20 of Edward's Botanical Register . There are several synonyms for Ceropegia elegans Wall .: Ceropegia sphenanantha Arn. & Wight in Wight (and the incorrect spelling Ceropegia sphenanthera Decne.), Ceropegia myosorensis Wight. Ceropegia walkerae Wight, ceropegia elegans var. Walkerae (Wight) Trimen, ceropegia similis NEBr., Ceropegia ledgeri NEBr. The variety Ceropegia elegans var. Walkerae (Wight) Trimen (= Ceropegia walkerae Wight) had already been withdrawn by Herbert Huber in 1957.

According to the phylogenetic analysis by Surveswaran et al. In 2009 Ceropegia elegans is very basal to the other Ceropegia species of the Western Ghats.

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literature

  • MY Ansari: Asclepiadaceae: Genus Ceropegia. In: Fascicles of Flora of India , Fascicle 16, 1984, pp. 1-34, Botanical Survey of India, Howrah (p. 10)
  • Philip Furley Fyson: The flora of the Nilgiri and Pulney Hill-tops. Volume 3, 581 pp., Madras, Government Press, 1920. Online at www.biodiversitylibrary.org (p. 425)
  • Joseph Dalton Hooker (assisted by various botanists): The flora of British India. Volume 4. Asclepiadeae to Amarantaceae. London, Reeve & Co., 1885. Scanned at www.biodiversitylibrary.org (pp. 68–69)
  • Herbert H. Huber: Revision of the genus Ceropegia. In: Memórias da Sociedade Broteriana , Volume 12, 1957, pp. 1–203, Coimbra (pp. 72–73)
  • 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. 216).
  • PV Krishnareddy, T. Pullaiah: In vitro conservation of Ceropegia elegans, an endemic plant of South India. In: African Journal of Biotechnology , Volume 11, No. 61, 2012, pp. 12443-12449. doi : 10.5897 / AJB11.4302 PDF
  • John Lindley: Ceropegia elegans. In: Edward's Botanical Register, Volume 20, Plate 1706, London, James Ridgway, 1835 Scanned at www.biodiversitylibrary.org
  • Robert Wight: Contributions to the Botany of India. 136 p., London, Parbury, Allen & Co, 1834: limited preview in Google Book search (p. 31)
  • Robert Wight: Spicilegium Neilgherrense, or, a selection of Neilgherry plants: drawn and colored from nature, with brief descriptions of each; some general remarks on the geography and affinities of natural families of plants, and occasional notices of their economical properties and uses. Volume 2, 94 pp., Plates 103–202, Madras, self-published, 1851 Scanned in at www.biodiversitylibrary.org (p. 48, plate 155).

Individual evidence

  1. ↑ K. Sri Rama Murthy, R. Kondamudi, M. Chandrasekhara Reddy, S. Karuppusamy, T. Pullaiah: Check-list and conservation strategies of the genus Ceropegia in India. In: International Journal of Biodiversity and Conservation , Volume 4, No. 8, 2012, pp. 304-315 PDF
  2. ↑ 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!)
  3. ↑ Nathaniel Wallich: Ceropia elegans. In: Curtis's Botanical Magazine , Volume 57, 1830, Plate 3015, London, self-published by Samuel Curtis Scanned at www.biodiversitylibrary.org
  4. ^ Robert Wight: Contributions to the Botany of India. 136 p., London, Parbury, Allen & Co, 1834: limited preview in Google Book search (p. 31)
  5. ^ Robert Wight: Icones plantarum Indiae orientalis, or figures of Indian plants. Volume 3: Plates 737-1162, Madras, Franck. Scanned in at www.biodiversity.org (Plate 846)
  6. ^ Robert Wight: Icones plantarum Indiae Orientalis: or figures of Indian plants. Volume 4. Madras, published by JB Pharoah for the author, 1848. Scanned at www.biodiversitylibrary.org ( Ceropegia elegans : Plate 1265, Ceropegia walkerae : Plate 1266)
  7. ↑ Henry Trimen: A hand-book to the flora of Ceylon: containing descriptions of all the species of flowering plants indigenous to the island, and notes on their history, distribution, and uses. Pt. 3: Valerianaceae - Balanophoraceae. with the tables LI-LXXV, London, Dulau & Co., 1895: Scanned in at www.biodiversitylibrary.org (p. 166).
  8. ^ Nicholas Edward Brown: New or Noteworthy Plants. In: The Gardeners' chronicle: a weekly illustrated journal of horticulture and allied subjects , Volume, 1906, pp. 383–384: Scanned at www.biodiversitylibrary.org (p. 384)
  9. ^ Nicholas Edward Brown: Diagnoses Africanae. LIII. In: Bulletin of Miscellaneous Information (Royal Gardens, Kew) , Volume 1913, No. 3, 1913, pp. 118–123 Online at www.biodiversitylibrary.org (p. 121)
  10. ↑ Siddharthan Surveswaran, Mayur Y. Kamble, Shrirang R. Yadav and Mei Sun: Molecular phylogeny of Ceropegia (Asclepiadoideae, Apocynaceae) from Indian Western Ghats. In: Plant systematics and evolution , Volume 281, 2009, pp. 51-63: doi : 10.1007 / s00606-009-0182-8

Web links

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