1877.] Knowledge of tlie Burmese Flora. 211 



All parts, also tho wliito corolla, quite glaliroiis ; capsule glabrous, ,,,,L. Wallichiana. 

 All parts, also the rose-coloured corolla and tho capsule, velvety pubcrulous, . . L. rosea. 



1. L. Zetlanica, L. sp. pi. ed. 1. 932 ; Wall, in Roxb. Fl. Ind. II. 113. 

 Var. a. GENUIN'A, {L. Lohhiana, Hf. and Th. in Linn. Proc. II. 28), 



an aquatic form, the branches more or less ascending or erect, np to li ft. 

 long ; all jmrts more robust ; leaves up to 2 in. long ; corolla 4 — 5 lin. long. 



Var. (B. APFiNis, (i. affinis, Wall. Cat. 1311 ; DC. Prod. VII. 360 ; 

 L. succulenta, Bl. By dr. 728 ; DC. 1. c. 373), creeping or prostrate, all 

 parts smaller ; leaves shorter petioled, ^ — 1 in. long ; corolla only 2 lin. long. 



Hab. Var. a only, frequent along choungs in the tropical forests of 

 the eastern slopes of the Pegu Yomah and from Martaban down to Tenas- 

 serim. — Fl. Fr. Febr., March. 



2. L. TRiGONA, Eoxb. Fl. Ind. ed. Wall. II. 111. (i. sulincisa,l^a\\. 

 Cat. 1310; DC. Prod. VII. 367 ; L. suhracemosa, Miq. in Fl. Ind. Bat. II. 

 576). 



Var. a. TRiGOisrA, {L. trigona, Roxb. 1. c. etc.), all parts more suc- 

 culent, the floral leaves more ovate ; peduncles thicker and flowers much 

 larger. 



? Var. /?. STiPULARis (L. stipularis, Wall. PI. As. rar. II. 43 ; L. 

 trialata, Ham. in Don Prod. Fl. Nep. 157 ; DC. Prod. VII. 360 ; L. mi- 

 crantlia, Hook. Exot. Fl. I. t. 44 ?) slender, erect, branched, all parts less 

 succulent ; peduncles filiform ; flowers minute, the floral bracts often very 

 narrow. Probably a distinct species. 



Hab. Frequent in swampy grass-land, borders of tanks, in wet paddy 

 fields, and more especially on the banks of rivers, all over Burma ; var. y8. is 

 a hill-form (or species ?) of Martaban ; also Prome, and Ava, on Taong- 

 dong.— Fl. Fr. Octob.— Dec. 



Vatke (in Linnsea XXXVI. 718) identifies L. trigona of Roxburgh 

 with L. alsinoides of Lamarck ; the description of the latter, however, does 

 not in the least agree with the Indian plant. L. stipularis, Wall., will take 

 precedence, if it is not sj)ecifically different, but I am at present inclined to 

 believe it may be different. 



3. L. Geiffithii, Hf. and Th. in Linn. Proc. II. 28. 



Var. a. gejs'TJINA, leaves reduced to scales ; flowers only a line long. 



Var. /?. DOPATEioiDES, Kurz in Flora 1872. 302 {L. dopatrioides, 

 Kurz in Journ. As. Soc. Beng. 1870. 77 ; L. sp. Griff. Not. Dicot. 281), 

 leaves developed ; flowers nearly twice the size. 



Hab. In wet fields and sw^ampy pastures of Pegu, near Rangoon 

 (R. Scott) ; var. /3. in long grass along rivers of Arracan, frequent ; Tenas- 

 serim, Attaran (Brandis) ; Mergui (Griff.). — Fl. Fr. Octob. 



4. L. Wallichiais^a, Hf. and Th. in Linn. Proc. II. 29 (L. pyrami- 

 dalis var. /8. DC. Prod. VII. 381). 



