Conjugatse, Desmidiacefo, Cosmarium. 1045 



lateribus levissirae retusis, medio tumore instructis. In insulis spets- 

 bergensibus. — Dimens. 42 = 24; latit. isthmi 14 u. 



264. Cosmarium Reinschii Archer in Micr. Journ. 1876, t. 16, p. 109, 250i 

 [Wolle Desm. U. S. p. 68, t. 16, f. 12?], Cooke Brit. Desm. p. 96, 



t. 37, f. 14 non Istv. Schaarschm., Cosmarium sp. Roinsch Con- 

 trib. Alg, Fungol. Chloroph. 1875, t. 18, f. 4. — Cellulis trunca- 

 tis, ellipsoideis, quarta parte circiter raagis longis quara latis, con- 

 strictiono lineari; seniicellulis ovatis vel semiellipticis, apicibus rectis 

 levibus; latoribus nodulis 3 instructis; e vertice visis ellipticis 

 raedio utrinque tumidis. 



Hab. in stagnis ad «Penzance» Angliae et in Hibernia (Archer, 

 Cooke), in Franconia Gerraania3 (P. F. Reinsch), in Araerica boreali 

 (?WoLLE). — Dira. ex Reinsch 33 = 28; Diara. ex Wolle 30-35 p. 



265. Cosmarium pseudogranatum Nordst. in Warra. Syrab. Fl. Bras. 2502 

 Desra. 1869, t. III, f. 27, Hedw. 1870, p. 176, non Wolle — A fronte 

 visum habitu Cosmarn granati Breb.; semicellulis in centro tumore 

 parvo et insuper levi depressione prieditis, lateribus aut non aut 

 leniter retusis, a vertice visis ellipticis, medio utrinque tumore parvo 

 instructis; merabrana punctata. 



Hab. in Brasilia America) australis (Warming) — a)forma minor: 

 long. 33 fjt.., lat. 22 a. crass. 13,5 f/. b) forma media: long. 40-45 fx., 

 lat. 22-23 a., crass. 19-21 (u.. c) forma major: long. 73 a., lat. 44 \i. 



266. Cosmarium pusillum Brob. in Pritch. Inf. p. 731, Rabenh. Fl. Eur. 250.3 

 Algar. III, p. 169, Hansg. Prodr. p. 201, n. 411, E^Mas/rwm pusil- 

 lum, Breb. Liste p. 125, n. 21, t. I, f. 7. — Minimum, latius quam lon- 

 gius, 7,7-9=: 9-10, integerrimura, diraidio constrictura, sinu angusto, 

 lineari, acuto ; semicellulis diametro duplo latioribus, angulato-tra- 

 pezoideis, dorso latissime truncatis, nonnunquam leniter retusis; 

 raembrana levi. 



Hab. prope « Juvigny » et « Falaise » in Gallia (De Brebisson); 

 in Saxonia passim, semper singulatira; in Silesia ad Vratislaviara 

 (Hilse), in sudetis (Kirchner). 



267. Cosmarium Wolleanum Lagerh. Bidrag till Araer. Desmidie-Flora 2504 

 p. 337, Cosmarium 'pseudogranatum Wolle Desm. of U. S. 



p. 158, t. XVII, f. 21-23 nec Nordst. — A Cosmario granalo Breb. 

 differt tumore centrali (in cellulis e latere et vertice visis) distin- 

 cto; lateribus seraicellularum non sinuatis vel rectis at subconve- 

 xis ; raombrana punctata. 



Hg,b. In stagnis ad « Northampton Co. » in Pennsylvania Arae- 

 ricse borealis. — Diraens. 60^35. — Subsp. granuliferum Lagerh. 



