Synopsis of Indian Composite. 293 



pectinate obtuse. Annual erect herbs, with opposite leaves : 

 involucrum imbricated : receptacle naked : flowers blue or 

 white. 



8. Adenostemma, (Forst. D. C. 5-110). Capitula many 

 flowered: achaenia obovate oblong, surmounted by 3-5 rigid 

 bristles, glandular globose or clavate at the apex. Herbs 

 with opposite leaves and corymbosely panicled capitula : 

 involucrum campanulate, somewhat shorter than the flowers: 

 squamae 1 -series, foliacious, oblong: receptacle flat, naked, 

 foviolate : corolla white ; stigmas long exserted, thickened at 

 the point and coloured. 



Tribe III. Asteroide^e. 



Sub- tribe I. Asterine^e. Capitula homo or heterogamous 

 usually radiate. Anthers ecaudate, leaves almost always alter- 

 nate. 



9. Aster, (Nees. D. C. Prod. 5-226). Capitula radiate, 

 flowers of the ray 1- series fertile ; of the disk hermaphrodite, 

 5-toothed : achaenia compressed : pappus pilose, persistent, 

 several series : bristles scabrous, unequal, otherwise similar. 

 Perennial herbs, with alternate leaves : capitula solitary or 

 several, corymbose : scales of the involucrum several series, 

 loosely imbricated : receptacle alveolate ; margins of the 

 alveolae more or less dentate : flowers of the ray white, blue, 

 or purplish ; of the disk yellow. [This genus seems scarcely 

 admissible into the Indian Flora.] 



10. Calimeris, (Nees. D. C. 5-258). Capitula radiate, ray 

 ligulate female, 1-series ; disk hermaphrodite fertile : achaenia 

 compressed, rough on the margin: pappus about 1-series, 

 rough, unequal. Herbaceous perennials, stems angled, co- 

 rymbose : scales of the involucrum 2-4-series, herbaceous, 



