238 



60. ASCLEPlA-DEiE. 



[Heterostemma, 



35. HETEROSTEMMA, W. & A. 



Twining shrubs. Leaves usually cordate, 3-5-nerved at the base. 

 Flowers small, in umbelled cymes. Corolla rotate^ lobes triangular, 

 valvate. Corona o£ 5 large lobes^ spreading from the column and 

 lying flat on the corolla. Pollen-masses minute, abroad, sessile, erect. 

 Stigma included, truncate, 5-angled. Follicles slender, straight, terete, 

 pericarp thin. Seeds comose. 



H. Dalzellii, Hook. f. Fl. Br. I. 4. 48. H. WalUchii, Dalz. & Gibs, 

 Bomb. Fl. 152. 



The Konkan ; at Vengurla and Malvan, also in the Deccan near Poona. 

 Fl. Aug. -Sept. 



16. Oianthus urceolatus, Benth. Heterostemma urceolatiim, Dalz. 

 & Gibs. Bomb. Fl. 153, and 0. disciflorns, Hook. f. Fl. Br. I. 4 49, are 

 twining nnder-shrubs of the Konkan ghats which Sir J. Hooker thinks 

 are possibly abnormal forms of Heterostemma. 



17. HOYA, Br. 



Twining shrubs. Leaves thickly fleshy or very coriaceous. Flowers 

 in axillary or terminal umbels. Calyx small, 5-partite. Corolla 

 rotate, waxy, lobes 5, valvate in bud. Coronal-scales 5, stellately 

 spreading, or ascending, turgid, laterally or vertically compressed, 

 often concave on the u.pper sm-face, margins usually recurved so as to 

 enclose a hollow space, the inner angle often produced into a tooth or 

 spur which is ereet or incumbent on the anther. Pollen-masses pedi- 

 celled, erect. Follicles usually slender, acuminate. Seeds with a long 

 coma. 



Leaves linear, very narrow, fleshy, glabrous, tip obcordate. 

 Flowers sub -solitary, corona pink, lobes shorter than 

 the corolla -tube ... ... ... 1, H,retusa* 



Leaves broad, elliptic. 



Nerves, distinct (when dry), horizontal. 



Leaves long- petioled, margins recurved (when dry). 

 Coronal-processes short, inflated ... ... 2. H, WigJitiu 



Nerves arching, distinct. 



Leaves short petioled, often fascicled, margins flat. 

 Coronal-processes ovate, obtuse, concave above... 3. JB.. ovalifolia. 

 Leaves short petioled, not fascicled, margins recurved. 

 Coronal-processes ovate, inner angle spurred ... 4. H. pendvZa. 



I. H. retusa, Dalz. in Hook. Kew Jour. Bot. lY. 294 ; Fl. Br. 1. 4. 56 ; 

 Dalz. & Gibs. Bomb. Fl. 153. Jummahi, bendurlcij K. 



On trees in the moist forests of the Konkan and North Kdnara ghdts, 

 common in the forests near Yellapnr. Appears to flower rarely and during 

 the B. S. in July. Flowers purple. 



2. H. Wightii, Hook. f. Fl. Br. T. 4 59. H pallida, Dalz. & Gibs. 

 Bomb. Fl. 152, 



Deccan peninsula from the Bombay ghats to the Nilgherries. On 

 trees throughout the Konkan and -North Kdnara ghats, very common 



