344 XI. DESMiDiACEiE (West). \Tetmemoru8 



Var continuus Nordst. Alg. Sandvic. 10 (1878) ; W. et G. S. 

 West, I.e. 



HuiLLA. — In paludibus exsiccandis ; April 1860. No. 176. 



3. T. fissus W. et G. S. West in Journ. Bot. 1897, p. 81, t. 368, 

 f. 25. 



HuiLLA. — In paludibus exsiccandis ; April 1860. No. 176. 



This small species has somewhat unique characters that readily 

 distinguish it from the other species of the genus. 



9. EUASTRUM Ehrenb. (1832). 



1. E. acmon W. et G. S. West in Journ. Bot. 1897, p. 81, 

 t. 366, f. 11, 12. 



HriLi.A. — In uliginosis editioribus prope Humpata, Empalanca 

 et Lopollo, plagas spongiosas unacum Eriocauloneis, Xyridibus et 

 Utriculariis constituens ; May 186U. No. 15. 



The front view of this species is considerably different from that 

 of E. iiitermtdium Cleve, a depressed form of which it somewhat 

 resembles at first sight, and the vertical and lateral views readily 

 distinguish it from all Euwitra of this class. 



Var. clausum W. et G. S. West, I.e., p. 82, t. 366, f. 13. 



HuiLLA. — In graminosis paludosis juxta rivulum de Lopollo ; April 

 1860. No. 180. 



2. E. holoscherum W. et G. S. West in Journ. Bot, 1897, p. 82, 

 t. 366, f. 14. 



HuiLLA. — Inter Micruqwram ubbreviatam et Batrachospermum 

 huilleuse, in rivulis prope Lopollo ; May 1860. No. 187- 



3. E. ansatum Ehrenb. Abhandl. Akad. Wissenschaft. Berlin 

 (1831), 82 (1832); Infus. 162, t. xii. f. vi. 2 (1838); Ralfs, Brit. 

 Desm. 85, t. xiv. f. 2 ;? W. et G. S. West, I.e. 



PuNGO Andoxgo. — In stagnis prope Anbilla (Condo) ; March 

 1857, No. 177. 



4. E. huillense W. et G. S. We.st in Journ. Bot. 1897, p. 82, 

 t. 366, f. 15, 16. 



HriLLA. — In uliginosis editioribus prope Humpata, Empalanca 

 et Lopollo; May 1860. No. 15. Etiam in paludibus exsiccandis; 

 April 1860. No."l76. 



E. anmtibin Elirenb. var. turgkhim Boerg. (in Vidensk. Medd. 

 Naturh. Foren. Kjoben. (1800), 33, t. iii. f. 16) is somewhat near 

 this species in outline, but its dimensions and other characters are 

 very different. 



5. E. sinuosum'Lenorm. (1845) ; Ealfs, I.e., 85, t. xiii. f. 5 a, b, c 

 (1848). 



Var. reductumlW. et G S. West in Journ. Bot. 1897, p. 83. 



HuiLLA.— In uliginosis editioribus prope Humpata, Empalanca 

 et Lopollo ; May 1860. No. 15. Morro de Lopollo ; May 1860. 

 No. 182. 



6. E. hypochondrum Nordst. in Acta Univers. Lund. xvi. no. iv. 

 8, t. i. f. 11 (1880) ; W. et G. 8. West, I.e. A form with slightly 



