344 XI. DESMiDiACB^ (West). [Tetmemorus 



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

 West, I.e. 



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



3. T. flssus 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. 



HuiLLA. — In uliginosis editioribus prope Humpata, Empalanca 

 et Lopollo, plagas spongiosas unacum Briocauloneis, Xyridibus et 

 Utriculariis constituens ; May 1860. No. 15. 



The front view of this species is considerably different from that 

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

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

 distinguish it from all Euastra of this class. 



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



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

 1860. No. 180. 



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

 t. 366, f. 14. 



HuiLLA. — Inter Microsporani abhreviatam et Batrachospermum 

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



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

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

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



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

 18S7, No. 177. 



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

 t. 366, f. 15, 16. 



HuiLLA. — In uliginosis editioribus prope Humpata, Empalanca 

 et Lopollo ; May 1860. No. 16. Etiam in paludibus exsiccandis ; 

 April 1860. No. 176. 



E. ansatum Ehrenb. var. turgidum Boerg. (in Vidensk. Medd. 

 Naturh. Foren. Kjoben. (1890), 33, t. iii. f. 15) is somewhat near 

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

 very different. 



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

 (1848). 



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



HuiLLA.— In uliginosis editioribus prope Humpata, Empalanca. 

 et Lopollo ; May 1860. No. 16. Morro de Lopollo : Mav I860. 

 No. 182. ' 



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

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



