1877.] Knowledge of tlie Burmese Flora. 207 



Leaves sagittate, the petiole long and broadly leafy-winged and sagittately or auricular- 

 dilated at the base ; panicle lax, the flower- heads nearly ^ in. long, nodding, on 

 slender bractcd peduncles, . . P. alata. 



Leaves, at least the cauline ones, sessile with a sagittate base ; flower-heads long and 

 slenderly peduncled, forming a narrow terminal panicle, , P. Kothce, 



1. P. ALATA, Hf. and Thorns. ; Clai-k. ComiD. Ind. 274. 



Hab. Grassy open places in the drier hill-forests of the higher ridges 

 of the Martaban hills, at 5 — 6000 ft. elevation. 



2. P. HoTHJD, {Sonclms Hatha, Clark. Comp. Ind. 276). 



Hab. Ava, Khakyen hills east of Bhamo (J. Anderson). — Fl. Fr. 

 Aug. 



The base of the involucral bracts becomes slightly thickened and in- 

 durated in fruit, but the inflorescence and the narrow few- and apparently 

 purple-flowered flower-heads are those of a Prenanthes, not of 8o?ichus. 



Sonchus, L. 



Conspectus of Species. 



* Involucral bracts glabrous or puberulous, but not glandular-pilose or hispid. 

 Achenes much compressed, 3-ribbed on both sides, the ribs perfectly or almost perfectly 



smooth ; leaves usually runcinnate-pinnatifid, S. asper. 



Achenes compressed, the ribs marked with transverse asperities, and muricate ; leaves 

 runcinnate-pinnatifid or simple, 8. oleraceus. 



* * Involucral bracts and peduncles glandular-hispid or glandular -pilose. 

 Achenes hardly compressed, the ribs thick and transversely muricate ; leaves more or 



less slightly runcinnate, the upper ones simple, 8. arvensis. 



1. S. OLERACETJS, L. sp. pi. 1116 ; Roxb. Fl. Ind. III. 402 ; Hayn. 

 Arzn. Gew. II. t. 48 ; Fl. Dan. t. 682 ; Koch Syn. Fl. Germ. 371 ; Clark. 

 Comp. Ind. 275. {S. ciliatus, Lamk. Fl. Franc. II. 87 ; DC. Prod. VII. 

 185 ; Wight Icon. t. 1141 ; S. Wallichianus, DC. Prod. VII. 185). 



Hab. Ava. — Fr. June. 



2. S. ASPER, Vill. Delph. III. 158 ; Hayn. Arzn. Gew. II. t. 48 ; 

 Koch Syn. Fl. Germ. 371 ; Clark. Comp. Ind. 275. {S. fallacc, Wallr. 

 Sched. 432 ; Fl. Dan. t. 893 ; DC. Prod. VII. 185). 



Hab. Burma {teste Clarke). 



8. S. ARVEiTSis, L. sp. pi. 1116 ; Engl. Bot. t. 674 ; DC. Prod. VII. 

 187 ; Koch Syn. Fl. Germ. 371 ; Clark. Comp. Ind. 276. {S. Orixensis, 

 Eoxb. Fl. Ind. III. 402 j S. WigUianus, DC. Prod. VII. 187 j Wight 

 Icon. t. 1142). 



Hab. Not unfrequent in cultivated and rubbishy places, in toungyas 

 and betel-nut-gardens, etc., also along river-banks, of the Martaban hiUs ; 

 Ava, Bhamo (J. Anderson) .—Fl. April, May ; Fr. June. 



