128 
BRITISH DESM IDS. 
Fenium navicula. Breb. Liste Desm. (1856), t. 2,f. 37. 
Archer, in Prit. Inf. (1861), p. 751. 
{Penium Berginii. Archer, Nat. Hist. Rev. (1858), v., p. 256.) 
Ireland. 
Fenium Mooieanum. Archer, in Micr. Journ. (18641, p. 179. 
Penium pusillum. Delponte, t. 15, f. 84-36 (?). 
Dublin Mountains, and near Lough Bray. 
Fenium spirostriolatum. Barker, in Micr. Journ. (1869), IX.. p. 194. 
Connemara (Ireland). 
Fenium didymocarpum. Lundell Desm. Suec. (1871), p. 84, t. 5,f. 9. 
Archer, in Micr. Journ. (1873), xiii., p. 213. 
N. Wales. Connemara (Ireland). 
Cylindrocystis diplospora. Lundell Desm. Suec. (1871), p. 83, t. 5,/. 7. 
Archer, in Journ. Bot. (1874), iii., 94. 
Ireland. 
Mesotaenium chlamydosporum. DBary Conj. (1858), p. 75, t. 7D. 
Archer, in Micr. Journ. (1864), p. 124, t. 1, f. 1-19. 
Ireland. 
Mesotaenium mirificum. Archer, in Micr. Journ. (1864), p. 130, t. 1, 
/. 20-31. 
Ireland. 
Mesotaenium violascens. DeBary Conj. (1858), p. 74, t. 7 B. 
Crowe, in Micr. Journ. (1873), xiii., p. 319. 
Ireland. 
Spiroteenia parvula. Archer , in Micr. Journ. (1862) II , 254. 
Dublin Mountains (Ireland). 
Spirotaenia truncata. Archer, in Micr. Journ. (1862), II., p. 253. 
Dublin Mountains (Ireland). 
Spirotaenia minuta. Thurei, in Breb. Liste. 
Archer, Micr. Journ. (1868), viii., 68. 
{Spiroteenia erythrocephala (Braun). Archer, in Prit. Inf. 
(1861), p. 751?). 
Carrig Mountain. 
Spirotaenia tenerrima. Archer , in Micr. Journ. (1870), p. 203. 
Ireland. 
Cosmarium laeve. JRabh. var. septentrionale. Wille, Nova Zembla, 
p. 43, tab. xii, jig. 34. 
Around London, and perhaps common throughout Britain. 
Localities other than those enumerated, especially in England 
and Scotland, desired. 
M. C. Cooke. 
146, Junction Road, London, N. 
