1000 CoDJugatsD, Desmidiacese, Cosmarium. 



cellulis e latere visis circularibus, 2 spinuligeris, e vertice ellipti- 

 cis, apicibus truncatis, 3 proeminentiis parvis, nec non 10 spinis 

 minutis in orbem dispositis quoque latere instructis. 



Hah. ad « Junsai Nuraa » Japonise. — C. iaxichondro Lundell 

 var. subundaio Boldt affine. 



153. Cosmarium praemorsum Breb. Liste p. 128, u. 23, t. I, f. 8,Ar- 2.390 

 cher in Pritch. Inf. p. 733, Rabenh. Alg. n. 1353, Fl. Eur. Algar. III, 



p. 160, Cooke Brit. Desm. p. 107, t. 42, f. 2. — Fere tara longura 

 quam latura, 43-53 ^; 38, profunde constrictum, sinu anguste lineari, 

 ambitu crenulatura e vertice ellipticura ; seraicellulis late reniforrai- 

 bus, subtrapezoideis, angulis inferioribus rotundatis, dorso late trun- 

 catis, suberaarginatis; merabrana granulata, granulis raargaritaceis, 

 Hah, in stagnis prope aFalaise» in Gallia (De Brerisson), in 

 Britannia (Cookb) et Norvegia (Nordstedt, Wille). — Diraens. 

 43-53 ^ 38. 



Sectio 2. Gastrocosmarium Hansg. Prodr. p. 251, 



Cellul86 e vertice visas oblongae, medio ventricoso-productfe. 

 1. Subsectio Microgastridium Hansg. Prodr. n. 251. — Chlorophorum 

 singulum (pyrenoldem singulum fovens) in utraque semicellula. 

 A. Membrana cellularis levis aut punctulata. 



154. Cosmarium subcrenatum Hantzsch inRabenh.Alg.n.l2I3,FI.Eur. ^39i 

 Algar. III, p. 164, WoIIe Desra. U. S. p. 84, t. 18, f. 6-7, t. 19, 



f. 20, Hansg. Prodr. p. 201, n. 412, Wittr. et Nordst. Alg. aq. dulc. 

 exsicc. n. 562. — Parvum, paullo longius quam latius, 23-36 t; 20-26, 

 profunde constrictum, sinu sublineari; semicellulis subseraicircula- 

 ribus, ventre planis, dorso truncato integerrirais, lateribus rotun- 

 datis, undulato-crenatis, crenis in utroqiie latere 4-6, e vertice con- 

 spectis ellipticis; prorainentiis nonnullis (5) in raedio cellulae turaido 

 extantibus. 



Hab. in fossis inter Oedogoniorum fila, prope « Dresdara » 

 Gerraania) (Hantzscii) , prope a Trautenau, Arnau, Herrnskretschen 

 Tabor etc» Boheraiae (Hansgirg), in Tyrolia (Nordstedt), Ilun- 

 garia (Istvanpfi), Sibiria (Boldt), Groenlandia (Boldt), in Penn- 

 sylvania, Massach., N. J., Minnesota Araericse borealis (Wolle), 

 ad «Montevideo, Uruguay» Araerica) australis (Wille). — Var. 

 divaricatum Wllle Ferskvandsalger fra Novaja Semlja p. 40, t. 

 XII, f. 27: crenis lateralibus bidentulatis ; granulis semicellula- 

 rum in series (jugulas?) 6-8 verticales dispositis; seraicellulis a 



