

196 



FRESH-WATER ALG.E FROM BURMA. 



58. 



Pleukoivenium Indicum (Grun.) Lund. Desm. Suec. 1871, p. 90. 



Docidiwn Indicum Grun. Diat. u. Desm. Ins. Bank. 186 



p. 13 



2, f. 18 



Long. 422-784/*; lat. ad bas. semicell. 25-34 



lat. 



ad med. semicell 



18 



25/* 



ad 



apic 



15-20/* 



Ilab 



•Kyaukta 



Peg 



district 



(N 



22124). Sing 



Kyaukse district 



No. 22193). In swamp, Katha (No. 22677). 



The Burmese specimens of this Desmid varied much in size, but their relative proportions 

 remained fairly constant. All possessed a large undulation at the base of the semicells, and ssveral 



it. The lateral margins above the undulations were parallel and the apex 



smaller < 



truncate. 



above 



Vai. CRAssius Lagerh. Algol. Bidr. 1886, p. 199. 



Long. 560^ ; lat. ad bas. semicell. 54^; lat. ad med. semicell, 46/4 ; lat. ad 



apic. 32/x. 



Ilab, 



MomiMik, east of Bhamo (No. 21551) 



It is hardly possible to separate this variety from PL maximum (R 



I 



and it is 



tionable whether it would not be 



base 



placed as a form of that species. The undulations 



are 



9 



Pleurot 



and the general proportions are much nearer those of PL maximum. 



M Trabecula (Ehrenb.) Nag. ; W. &. G. S. West, Brit. Desm 



i 



1904, p. a03, t. 30, f. 11-13 



> 



Ilab 



In spr 



on the river bank 



Bhamo (No. 21501). Momauk, east of 



Bhamo (No. 21551). Kyauktaga, Pegu district (No. 22124;. Between Thingan-ny 

 naung and Kawkareik, in the side-channel 



of a stream (No. 24483) 



Genus: Euastrum Ehrenb. 



60 



E 



Djdelta (Turp.) Kalfs, 1844 



Br 



Desm 



1848 



P 



84 



t 



f. 1; W. &. G. S. West, Brit. Desm. ii, 1905, p. 15, t. 35, f. 3-7 



14 



Forma minor; long. 82/x; lat, 49-5/*; lat. isthm 



Ilab 



12 



Mansang, near 



Hsipaw (No. 24193) 



61 



Euastrum sinuosum Lenorm 



Haifa 



Wost, Brit. Desm 



190 



Brit. Desm. 1848, p. 85; W. & G. S 



Long. 65/*; lat. 34-5/*; lat. isthm. 9*5 



p. 20, t. 36, f. 1 



Hab 



In the Kan-gyi, at Mudon (No. 24505), 



62 



Euastrum ansatum Ralfs 



Brit 



Desm 



1848 



Ilab 



Brit. Desm. ii, 1905, p. 27, t. 36, f. 10-13 



p. 85; W. & G. S 



West 



stream 



Between 

 . 24483) 



Thingan-nyi-naung and Kawkareik 



the side-channel of a 



63. Eoasteum iNERMDS (Nordst.) Turner, Freshw. Al- E 



t. 10, f. 51. 



India, 1893, ' p. 86, 



E. spinulosum Delp. subsp. inermius Nordst. Al* 



1 £ IT O* 



1, f. 17. 



et Char, i, 1880, p. 9, U 



