COSMAEIUM. 27 



p. 172 ; Nordst. Index Desm. 1896, p. 208 ; West & G. S. West, Alg. 



S. England, 1897, p. 492 ; Freslvw. Chlorophy. Koh Chang, 1901, p. 17' i : 



Alga-fl. Yorks. 1900, p. 87 ; Alg. X. Ireland, 1902, p. 41. 

 C. connatum b. pseudoconnatnm Klebs, Desni. Ostpreuss. 1879, p. 29. 

 Calocylindrus pseudoconnatus (Nordst.) Wolle in Bull. Torr. Bot. Club, 



viii, 1881, p. 39 ; Cooke, Brit. Desm. 1S87, p. 124, t, 44, f. 3 ; West, Alg. 



N. Yorks. 1889, p. 293 ; Alg. X. Wales, 1S90, p. 291. 

 Pleurot&niopsis pseudoconnatus (Xordst.) Lagerh. Algol. Bidr. II, 18^7, 



p. 197 ; De Toni, Syll. Alg. 1889, p. 908. 



Cosmaridium pseudoconnatum Hansg\ Prodr. Algenfl. Bohni. 1888, p. 245. 

 Dysphinctium pseudoconnatum (Xordst.) Turn. Freshw. Alg. E. India, 



1893, p. 43. 



Cells of moderate size, almost 1-J times as long as 

 broad, very slightly constricted by a broad and very 

 shallow sinus; semicells semi-elliptic with a slightly 

 narrowed base, in outline about two-thirds the circum- 

 ference of a circle. Vertical view circular or sub- 

 circular. Cell-wall punctate, the punctulations near 

 the isthmus beino- sometimes arranged in transverse 



o o 



series. Chloroplasts parietal, 4 in each semi-cell, each 

 with one pyrenoid. 



Zygospore unknown. 



Length 47'5-57'5 ^', breadth 3 3-44 /x,; breadth of 

 isthmus 31-40 p. 



ENGLAND.- -Loughrigg, and near Bowness, West- 

 moreland ! (Bissett). Mickle Fell, X. Yorks! Xew 

 Forest, Hants ! 



WALES.- -Near Bethesda !, and Capel Curig, Carnar- 

 vonshire! (Cooke $ 1T7//.S-). 



SCOTLAND.- -Rhiconich, Sutherland ! Tomachar and 

 Dawin in Cromar, Dalbagie near Ballater, Aberdeen 

 (Hoy ^ Bissett). Skye in Inverness ! Lewis and 

 Harris, Outer Hebrides! Xew Galloway, Kirkcud- 

 bright ! 



IRELAND.- -Lough Anna, Donegal! Eoundstoue, 

 Ballynahinch, Athry Lough, and loughs east of Lough 

 Bonn, Galway ! Muckross, Upper Lake of Killarney, 

 and Adrigole, Kerry ! 



Geoyi'. Distribution. France. Austria. Xorway. 

 Sweden. India. Ceylon (var.). Siam. Java (var.). 

 Madagascar. United" States. West Indies. Brazil. 

 Ecuador. Paraguay. 



