COSMARIUM. Ill 



ENGLAND.- -Near Bowness ! (JBissett), Pike of Bliscoe, 

 Louglirigg, Grisedale Tarn, and Helvellyn, Westmore- 

 land ! Pilmoor, near Thirsk, and Carlton Bank, IN". 

 Yorks ! Dartmoor, Devonshire ! 



WALES. Bog above Capel Curig Lakes, Bog below 

 Llyn Idwal, Twll Du, Llyn Gwynant, and Snowdon, 

 Carnarvonshire ! 



SCOTLAND.- -Lochinver, Sutherland; Ross; Brin and 

 Skye, Inverness ! ; Slewdrum, Aberdeen ; Cammie, 

 Muirvhauo'h, Dalbrake and Glen Dve, Kincardine ; 



tJ O i! ' 



Fife; near Kingshouse, Argyll (Roi/ fy Bissett). Ben 

 Laoio'li. Argyll ! 



o Ot7 



IRELAND.- -Doochary Bridge and Sproule's Louo-k, 



<J O 1 O 



Donegal ! Cromagloun, Kerry (with zygospores ?) ! 

 Slieve Donard and Slieve Commedagh (at 2000 ft.), 

 Down ! Dublin and Wicklow (Archer). 



Geoc/r. Distribution.- -France. Germany. Galicia in 

 Austria. Bosnia. Norway. Sweden. X. Russia. Nova 



e/ 



Zembla. Spitsbergen. Greenland. Ceylon. Singapore. 

 Azores. Sandwich Islands (form). United States. 

 Brazil. Patagonia. 



C. parvulum is sharply marked off from C. Gucurbita by 

 the pyramidate and more angular semicells, with almost 

 straight lateral margins. It is slightly shorter than 

 C. Palangula, with pyramidate semicells, and a cell-wall of a 

 different nature. 



There is no doubt that C. obcuneatum is identical with 

 C. parvulum, but we are in doubt concerning the zygospore 

 referred to C. obcuneatum, and described from Cromagloun, 

 Kerry. This zygospore was globose and 29 /LI in diameter, 

 being furnished with numerous simple spines 10-12 fj. in 

 length. TTe have since had reason to suspect that this zygo- 

 spore may have belonged to Penium adelocliondrum Elfv. 



120. Cosmarium goniodes West & G. S. West. 

 (PI. LXXIV, figs. 12, 13.) 



Cosmarium goniodes West & G-. S. West, Alg. Madag. 1895, p. 70, t. 

 f. 8 ; Nordst. Index Desm. 1896, p. 131 ; West & G-. S. West, Alg. 

 England, 1897, p. 492. 



Cells small, about twice as long as broad, slight! y 

 constricted, sinus very small and open ; semicells sub- 



