SYNEDRA. 



Forma minor (Wille) G. S. West, 1904. 



233 



Confer homlyana Ag. forma rmnor Wille, Ferskv. Alg. Nov. Semlj. 1S75, 



Hah— In springs on the river bank, Bham 



21501) 



This plant is commonly found ia springs, in slow rivers, and i n lanre 



in whioh 



the water is constantly renewed. It is generally absent f™ «t. \ , , ^ 



^Hons of oration. * 7 ^ ^ -a « Billt P°° U ' ^«iaf bitter 





Class: BACILLAHIEjE. 



Order: CENTRIC^. 

 Family: MEL0SIRACE£. 



Genus: Melosira Ag. 



204. Melosira varians Ag., 1830; W. Sm. Brit. Diat., ii, ,, 57, t. .51, f. 33 

 Hab.-In river Irrawaddy, Thayetmyo (No. 22999). In the mount' 



of Kawkareik (No. 24450). In swift river, Myawadi (No. 244M). Between Thb 

 nyi-naung and Kawkareik, in the side-channel of a stream ( No. 244^ ,). 



205. Melosira granulata Ralfs in Pritcb. Infus. ed. iv, 1861, p. 820. 

 Had.— In the Pegu-Sittang canal, Minywa, Pegu district (No. 21975). 



east 



Order: PENNAT.E. 



4 



Family: FKAGILARlACEi;. 



Genus: Fragi/aha Lyngb. 



206. Fragilaria virescen* Ralfs in Ann. Mag. Nat. Hist., 1843, ger. 1 xiL 

 p. 110, t. 2, f. 6. 



Eab. — Momauk, east of Bhamo (No, 21551). Hsipaw (No. .'1120). In the 

 mountains east of Kawkareik (No. 24450). 



Genus : Synedra Ehrenb. 



207. Synedra Ulna (Nitzsch) Ehrenb. Infus, p. 211, t. 17, f. 1; Rabenh. Flor. 

 Europ. Alg. i, 1864, p. 133. 



Eab.— Banks and backwaters of the Irrawaddy at Bhamo (No. 21502). In the 

 Pegu-Sittang canal, Minywa (No. 21975). In stream, Lashio (No. 22557). In river 

 Irrawaddy at Thayetmyo (No. 22999). In the mountains east of Kawkareik (No. 

 24450). In river, Myawadi (No. 24451). 



Ann. Roy. Bot. Gard. Calcutta Vol. VI. 







