umbellifer.'f:. 43.') 



TupiDAXTHUs, ITooher,/. et Thomson. 



rctiili firmly colicring iuto a thick mitre. Gi/iiacitim poly- (up to 100-)mcrous. 

 Leaves digitate. 



T. CALYrTHATUs, H. f. ct Til. Anikan HiUs {fdc TlioobalJ). 



Onkr UMBELLIFEILE. 



Corolla polypotalouR, opigynous, isostemonoiis, valvato in Inul. Pcfah 5, insrrted 

 on an epijryuous disk. S/ui/ioi-s 5, alternate -svitli the petals. Otart) infi^rior, of two 

 1-ovuled cells. Ornlcs pendulous, anatropous. Fruit dry. Emhrijo albuminous 

 ajjical ; radicle superior. Leaves alternate. 



* Umbels simple or irreyularlij {very rarely regularly) conqyound. No villa in the 

 furroics of the tiiericarp. 



ni'DROCOTYLIE.E. 

 Fruits laterally compressed, the meriearps rounded or acute on the lack {nut sharply 

 angular). 



HyDRocoxrLE, Linnaus. 

 Fruits much compressed. Calyx-teeth minute or obsolete. Petals concave, 

 valvato or imbricate. Unthels simple. Creeping herbs with simple leaves. 



* Leaves entire or crcnate. Umbels braefed. 



H. AsiATiCA, L. In grass lands and cultivation all over Pegu up 



to 2500 feet. Introduced into theAndamans. 

 H. COKDII'OLIA, II. f. 



Flowers by 3-4 in the head, sessile. Fruits nearly 2 lines in diameter, each 

 mericarp with 2 hardly prominent ribs. 



* * Leaves more or less lobed, the lobes acute or blunt, crcnate or serrate. Umbels 

 vithout bracts. 



X Peduncles and petioles more or less puberulous. 



H. Javanica, Thiinb. In betel gardens on the hills east of 



//. X^fpalensis, Hook. Toung-ngoo at 3000 — 1000 feet. 



II. polycephala, W. A. 



Flowers numerous, almost sessile or very shortly pedicellcd, forming rather 

 crowded terminal head-like umbels, the lower ones solitary and axillary. 



X X All parts quite glabrous. 

 II. BiKMAXicA, Kz. Upper Tenasserim. Thoung-yeen at oOOO {fide Farish). 



Flowers on .slender pedicels, forming slender solitaiy umbels in the axils of the 

 leaves. 



SAMcriiE.i:. 



Meriearps almost terete or laterally compressed, the commissure broad. Calyx-teeth 

 or lobes usually conspicuous. 



Saxkii.a, Linnaus. 

 Meriearps echinatc from bristles which are oftiii hooked. Flowers pedicellcd, 

 polygamous. ■ Bracts small. Umbels very small, usually panicled. Leaves dissected, 

 toothed. 



S. ErRor.T:A, L. Kluikyen Hills. 



5. montana, Rein. 

 S. Jitvanica, Bl. 

 S. elala. Ham. 



