Ceropegia barnesii E.A. Bruce & Chatterjee, Kew Bull.

S. S., Kambale & Abstract, S. R. Yadav, 2019, Taxonomic revision of Ceropegia (Apocynaceae: Ceropegieae) in India, Rheedea 29 (1), pp. 1-115 : 31

publication ID	https://doi.org/10.22244/rheedea.2019.29.1.01
persistent identifier	https://treatment.plazi.org/id/120287E4-E97D-D83E-FF40-A27FFB8DFEA4
treatment provided by	Felipe
scientific name	Ceropegia barnesii E.A. Bruce & Chatterjee, Kew Bull.
status

Treatment

Ceropegia barnesii E.A. Bruce & Chatterjee, Kew Bull. View in CoL 3(1): 62. 1948; H. Huber, Mem. Soc. Brot. 12: 63. 1957; Ansari, Fasc. Fl. India 16: 10. 1984; S.R. Sriniv. in Henry et al. Fl. Tamil Nadu Ind. Ser I, Analysis 2: 82. 1987; M.P. Nayar & Sastry, Red Data Book Indian Pl. 1: 51. 1987; A.P. Jagtap & N.P. Singh, Fasc. Fl. India 24: 216. 1999; Karthik. et al., Fl. Pl. India 1: 160. 2009. Type: INDIA, South India, s.d., E. Barnes s.n. (holo K000857804 image!).

Perennial twining herbs. Root stock with fascicled roots. Stem glabrous. Lamina 18–24 × 2–6 cm, ovate-lanceolate, acuminate at apex, rounded at base, sparsely hairy above, glabrous beneath, densely hairy along margins. Cymes 3–5-flowered, extra-axillary; peduncles 2.5–4 cm long, slender, puberulous; bracts minute, subulate, hairy; pedicels 1.8–2.8 cm long, terete, puberulous. Sepals 6–7 mm long, subulate, glabrous. Corolla c. 4 cm long, glabrous throughout; tube c. 3 cm long, slightly curved, dilated at base with a ring of hairs within, funnel-shaped at throat, c. 2 cm across, narrow at middle, spotted within towards lower part; lobes 5, c. 1.4 cm long, broadly triangular-ovate, subacute at apex, broad at base, connate at tip forming conical cage of 1.5–2 cm across, hairy within and along margins at tip. Corona bi-seriate; outer of 5 lobed, entire, ciliate; inner of 5 erect lobes, sub-clavate. Follicles c. 20 × 0.5 cm, slender, glabrous. Seeds c. 1 cm long, with inflexed margins, oblong, light brown, comose; coma 4–5 cm long, silky white.

Flowering: May–June.

Habitat: Occurs in evergreen forests.

Distribution: Endemic to Tamil Nadu, India.

Specimens examined: INDIA, Karnataka, South Canara , s.d., s.coll. s.n. ( MH!) . Tamil Nadu, Nilgiri, Pykara Fall , s.d., s.coll. s.n. ( MH!) .

Conservation status: Nayar and Sastry (1987) assessed it as Endangered due to habitat destruction. This plant is represented by only two sheets at MH, one from Karnataka and another from Tamil Nadu and has not been collected since more than 40 years .

Notes: Ceropegia barnesii can be readily distinguished from other Indian ceropegias by its characteristically larger leaves (18–24 × 2–6 cm). It is similar to C. intermedia Wight in its coronal structure but differs in having larger flowers with broader corolla lobes.