Notes on Indian Botany. 291 



Synopsis of the Genera of Indian COMPOSITE. 



Tribe 1. Vernon iace^e. 



Sub-tribe. Vernonie.se. Capitula discoid homogamous. 



Div. I. Euvernonie^e. Anthers ecaudate, involucrum not 

 compressed, polyphyllous. 



1. Oiospermum, (Less. D. C. Prod. 5-11). Capitula many 

 flowered, flowers equal : achsenia rounded at the apex, 

 10- ribbed: pappus wanting. Herbaceous, diffuse opposite- 

 leaved plants : capitula solitary, long peduncled opposite the 

 leaves : involucrum spreading, terete, surrounded at the base 

 by unequal-sized leaves, longer than the capitulum : recepta- 

 cle naked, broad : corolla regular 5-cleft, pale. 



2. Ethulia, (Cass. D. C. 5-12). Capitula many flowered: 

 achaenia obpyramidal 4-sided, 4-ribbed, glabrous, glandular, 

 truncated at the apex : pappus minute, entire, fleshy, crown- 

 like. Erect ramous herbs ; leaves alternate pellucid dotted : 

 involucrum terete many series, scales subfoliacious : recep- 

 tacle naked; corolla rose-coloured or purple. 



3. Vernonia, (Schreb. D. C. 5-15). Capitula usually 

 many flowered : achaenia with a cartilaginous callus at the base 

 and a large epigynous disk : pappus usually a double series, 

 the interior one bristly, much longer than the paleaceous 

 outer one. Herbs, shrubs or trees; leaves alternate, often 

 glandulose : involucrum imbricated, interior squamae longest ; 

 receptacle naked, or rarely subfimbrillose : flowers few or 

 many : corolla regular 5-cleft, usually purple or rose-coloured. 



4. Decaneurum, (D. C. 5-66). Capitula many flowered : 

 achaenia usually glabrous, marked with 10 prominent ribs : 

 pappus 1 -series, bristles thick, rigid, densely barbellate. Her- 



