No. 48. J 
[June, 1880. 
dmillea, 
A QUARTERLY RECORD OF CRYPTOGAMIC BOTANY 
AND ITS LITERATURE. 
BRITISH DESMIDS. 
An introductory List of Desmidiaceae found in the British 
Islands, since “ Ralfs’ Desuiidieae.” 
The following list has been compiled with the view to the collec- 
tion of information as to the occurrence of Desmidiaceae in these 
Islands since 1848. Any additions are solicited, to be sent to the 
“ Editor,” at the earliest possible convenience, in order that they 
may be incorporated in a work now in course of preparation. 
Gonatozygon Ralfsii, DeBary. Conjug., p. 76. 
( Docidium asperum. Ralfs., t. 26, f. 6.) 
Archer, in Pritchard Infusoria (1861), p. 722. 
Co. Tipperary (Ireland). Yorkshire. 
Gonatozygon Brebissonii, DeBary , Conjug., p. 77. 
(. Docidium asperum. Brebisson, in Ralfs, t. 26, fig. cf.) 
Archer, in Prit. Inf. (1861), p. 732. 
( Leptocystinema Portii. Archer, in Nat. Hist. Rev., 1858, p. 251). 
Ireland. 
Leptocystinema Kinahani. Archer, in Nat. Hist. Rev., Vol. V.,p.250. 
Archer, in Prit. Inf. (1861), p. 722. 
Ireland. 
Sphserozosma filiforme. Ehr. Meteorp., t. 1 20. 
Archer, in Prit. Inf. (1861), p. 724. 
Archer, in Micr. Journ. (1869), p. 197. 
Co. Tipperary (Ireland). 
Spondylosium secedens. (DBy.) Archer, in Prit. Inf., 1861, p. 704. 
( Sphcerozosma secedens. DeBary.) 
Archer, in Micr. Journ. (1871), p. 92. 
Kylemore, Co. Galway (Ireland). Also in Essex. 
Spondylosium pulchellum. Archery in Prit. Inf., (1861),^?. 724. 
Archer, Micr. Journ., xvii. (1877), p. 191. 
Ireland. 
Tetrachastrum mucronatum. Dixon, in Nat. Hist Rev. (1859) VI., p. 465. 
Archer, in Prit. Inf. (1861), p. 725. 
Co. Tyrone (Ireland). 
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