BRITISH DESMIDS. 
123 
Cosmaiium punctulatum. Breb. Listo.p. 129, t. 1,/. 16. not Lundell. 
Archer, Micr. Journ. 
Ireland. 
Cosmarium truncatellum. Perty Kleinst Lebensf. (1852),^. 209, t. 16, 
/. 13. 
Archer, in Micr. Journ. (1873), xiii., p. 99. 
Toole’s Rocks (Ireland). 
Cosmarium speciosum. Lundell , Desm. Suec. (1871), p.3 4, if. 3, /. 5. 
Archer, in Micr. Journ. (1873), xiii., p. 101. 
Rocky Valley (Ireland). 
Cosmarium tetrachondrium. Lundell, Desm. Suec , (I87I), p. 38, t. 3,/. 2. 
Archer. Micr. Journ. (1873), xiii., p. 315. 
Co. Tipperary. 
Cosmarium Hammeri. Reinsch. Alg. Mitt . Franken, p. 109, t. 9,/. 1. 
Crowe, Micr. Journ. (1873), xiii., 435. 
Ireland. 
Cosmarium plicatum. Reinsch Algenflora, pi. 9, fig Id. 
Barker, Micr. Journ. (1873), xiii., 435. 
( Cosmarium sinuosum. Lund. Desm. Suec., p. 47.) 
{Cosmarium quadratum. Ralfs Desm., t. xv., f. 1 c., variety.) 
Ireland. 
Cosmarium cyclicum. Lundell Desm. Suec. (1871), p. 35, t. 3 ,f.6d. 
Archer, Micr. Journ. (1877), xvii., p. 102 ; xv. (1875), p. 412. 
The form recorded by Reinsch, was also found in Scotland and 
Ireland. 
Cosmarium minutissimum. Archer, Micr. Journ. (1877), xvil.,^?. 194. 
Ireland. 
Cosmarium lasiosporum. Archer , in Micr. Journ. (1879), xix.,^>. 123. 
Ireland. 
Cosmarium hexalobum. Nordst. (variety). Archer in Micr. Journ. 
(1879... xix., p. 441. 
Ireland. 
Cosmarium lobatosporum. Archer , in Micr. Journ (1867), vil., p. 171. 
Kilbride, Co. Wicklow. 
Cosmarium annulatum. (Nag. sub. Disphinctium annulatum. Nag. 
Ein. Alg., p. 110.) 
Archer, in Micr. Journ. (1870), x., p. 92. 
Rocky Valley, Mullingar (Ireland). 
Cosmarium tenue. Archer , inMicr. Journ. (1868), vm., p. 293. 
Ireland. 
Cosmarium Schliephackianum. Grun. in Rah. FI. Alg., p. 167. 
.Nordstedt, Desm. A.rct. (1875), p. 24, t. 7, f. 15. 
Archer, in Micr. Journ. (1876), xvi., 338. 
Rocky Valley (Ireland). 
Cosmarium holmiense. Lundell Desm. Suec. (1871), p. 49, t. 2, f. 20. 
var. (3. 
Archer, in Micr. Journ. xv. (1875), p. 409. 
var. minor. 
Archer, in Micr. Journ. xvi. (1876), 344. 
Ireland. 
