1208 Conjugatse, Desraidiacepo, Staurastrum. 



193. Staurastrum inflexum Breb. Liste p. 140, t. I, f. 24, Cooke in 292I 

 Journ Quek. Micr. Cl, 1880, t. 16, f. 38, Brit. Desm. p. 169, t. 58, 



f. 5, Staurastrum var. inflexum Rabenh. Fl. Eur. Algar III, p. 

 207. — Semiceliulis e fronte visis late ellipticis, intra et extra m^it- 

 ginem turgidis, granulis minutis asperis, processibus lateralibus in 

 curvis, brevibus, apice fissis, e vertice visis 3-4-angularibus, radia- 

 tis, processibus brevibus, lateribus concavis. 



Hab. in stagnis in Gallia (De Brebisson) et Britannia (Cooke). — 

 Longit. 35 u.; diam. c. proc. 45 p.. 



194. Staurastrum polymorphum Breb. in Ralfs Brit. Desm. p. 135, t. 

 XXII, f. 9, et t. XXXIV, f. 6. Liste p. 139, Rabenh. Krypt, Flor. 

 V. Sachs. I, p. 192, Alg. sub n. 849, 1009, 1430, 1448, 1782, 1654 

 Fl. Eur. Algar. III, p. 209, Archer in Pritch. Inf. p. 742 , t. 2, 

 f. 20-21 , 24, 25, 31, De-Not. Element. Desm. p. 52, t. IV, f. 

 46, Delp. Specim. Desra. subalp. p. 162, t. XI, f. 56-62, Wolle 

 Desm. U. S. p. 126, t. 42, f. 9-10, 24-25, Kirchn. Alg. Schles. p. 

 167, Cooke Brit. Desra. p. 169, t. 58, f, 4, Hansg. Prodr. p. 213,, 

 Wittr. et Nordst. Alg. aq. dulc. exsicc. n. 71. — Semicellulis ellipti- 

 cis, incisura extrorsum valde arapliata introrsura rotundata, subti- 

 liter granulatis vel tenuissime spinulosis, in medio magis rainusve 

 inflatis, haud raro ventricosis, rectis, nonnunquam incurvis, utrin- 

 que processu plus minus elongato, lineari , in apice 3-4-fido vel 

 spinulis 3-4 tenuissimis instructis, a vertice 3-7-radiatis , radiis 

 achrois, aut trifidis aut rotundatis, 3-4-spinis; zygotis orbiculari- 

 bus, spinis paucis, apice furcatis instructis. 



Tlah. in aquis turfosis, stagnis, fossis in Italia (De-Notaris, 

 Delponte), Gallia (Brebisson, Petit), Vogesis (Lemaire), Belgio 

 (De-Wildeman), Britannia (Ralfs, Cooke), Germania (Kirchner, 

 Rabenhorst), Hungaria (Istvanffi), Bohemia (Hansgirg, Sciiroe- 

 ter), Suecia (Cleve, Lundell, Wittrock), Norvegia (Nordstedt, 

 Wille), Nova Semlia (Wille), Dania (Jacobsen), Spetsbergia 

 (Nordstedt), Lapponia rossica (Nordstedt), Sibiria (Boldt), Fen- 

 nia (Elfving), America boreali (Wood, ,Wolle), aPuerto Rico, 

 Fajardo)) (Lagerheim). Brasilia (Nordstedt), Birmaoia (Joshua). 

 — Dimens. 25-40 >^ 20-35 (Hansgirg), 45-53 ^ 53 (Nordstedt), 21-35 

 :^ 21-35 (Delponte), 25 =i 20 (Kirchner); diam. 25-30 fji. (WoIIe). — 

 Var. intermedium Wille Ferskvandsalger fra Novaja Semlja p. .53, 

 t. XIII, f. 64 ; semicellulis a vertice visis lateribus retusis, non- 

 numquara alternantibus. Ad « Norra Gaskap, MoIIerbaj^ Besimen- 

 najabay, Matotchkin, Kostin Shar, Kap Gribioni» Novse Semliae. 



