B32 Conjugut;p, Desniidiaceai, Closterium. 



TROCK, Cleve, Lundell), Boliemia (Hamsgirg, Corda, [Iora), Da- 

 nia (Jacobsen), Nova Semlia (Wille), America boreali et Mexico 

 (WooD, Wolle), iii Republica Argentiiia (Nordstedt), et ad u Mon- 

 tevideo, Uruguay » Americse australis (Arechavaleta sec. Wille), 

 ad (( Tereraakau, Arahura, Papakauri» etc. in Nova Zelandia (S. 

 Berggren sec. Nordstedt), in Sibiria (Boldt), in Japonia (RoY, 

 1!ISSET). — Var. coloratum Klebs Form. Desm. p. 6, t, 1, f. 9, 

 d.,Nordst. Alg. of N. Zeal. and Austral. p. 67, t. III, f. 20: forma 

 prse longitudine crassior (membrana achrroa); fortasse propria sit 

 species. Lat. 50-55 a. long. 230-280 ,a. In Germania (Klebs) et 

 Nova Zelandia (S. Berggren). 



35. Closterium fusiforme Gay Essai Monogr. Conjug. p. 74, t. II, f. 16. ^^^"^ 



— Cellulis mediocribus, 160-170 ij 25, subrectis, lateribus dorsuali 

 et ventrali tumidis, subangulatis; semicellulis conicis, acutis; chlo- 

 rophoris e lamiuis 8, radiatis constitutis; pyrenoidibus 5-6; locellis 

 sphsericis, corpusculum singulum trepidans foventibus. 



JJab. in rivulis circa «Sumene)) Galliie (F. Gay). — A Clo- 

 s(er/o Lunula apicibus acutls et inflatione angulata partis media- 

 nse dignoscitur. 



36. Closterium gigas Gay Essai Monogr. Conjug. p. 73, t. II, f. 15. i9S8 



— Cellulis maximis, 800 ^; 130, incurvis, semilunatis, latere ventrali 

 non tumido, apicibus subacutis; chlorophoris e laminis 12-16, ra- 

 diatis constitutis; pyrenoidibus nuraotrosissimis, irregulariter distri- 

 butis. 



llah. in fossis paludibusque ad u Lattes, Villeneuve-les-Mague- 

 lone, Thaurac, Roque-Ainier )) in Gallia (F. Gay). — A Closlcrio 

 Lunula magnitudine apicibusque subacutis differre videtur. 



C. Cellulee plus minus incurvae (usque ad falcato - incurvas), apicibus 

 sensim attenuatae, dorso et ventre secus eamdem direcLioueui convexis; zy- 

 gota globosa vel angulata. 



* Curvatura levis. 



37. Closterium Delpontii (Klebs) De-Toni, CloHermm crassum j.jgj) 

 Delp. Specim. Desm. subalp. p. 217, t. 18, f. 22-30, Hansg. Prodr. 



p. 180, n. 331 nec Rabenh., 67. llalfsii a Delponlii Klebs Desm. 

 p. 17. — Cellulis cylindraceis, medio inflatis, utrinque sensim at- 

 tenuatis, 35-50 [j.. latis, diametro 20-ies et ultra longioribus (circ. 

 560-805 y. longis), apicibus truncatis; suturis tribus in parte me- 

 dia; chlorophoris filiforraibus, intricatis; pyrenoidibus inconspicuis ; 

 niembrana crassa, valde striata 



