Myxopliycese, Heterocystidese, Nodularia. 435 



DER BoscH, Suringar) ct Atlaiitici superioris ad oras Angliae 

 (Thwaites), Scoti* ad ostium lluvii « Clyde » (Batters), maris se- 

 ptontrionalls et Adriatici (Hauck), Galliie (Bornet), Austri;e (Beck), 

 nec non in salinis Germanioe (Rabenhorst, Reinbold) et in stagnis 

 aqu?e dulcis Gallife (Lebel) et Germanire (A. Braun, Richter), Novai 

 Angliie (Collins), .Equatori:e (Istvanffi, Sodiro, Lagerheim) et 

 Australire (Moebius, Schmidle). — Var. major (Kuetz.) Born. ct 

 Fiah. Rev. IV, p. 247, Gardn. in Coll , Hold. et Setch. Pliyc. bor. 

 Am. n. 1012! Spermosira major Kuetz. Diagn. u. Bemerk. in Bot. 

 Zeit. 1847, vol. V, n. 197, Sp. Alg. p. 295, Tab. phyc. I, p. 54, 

 tab. 100, fig. V, Spermosira litorea c. crassior Rab. FI. eur. Alg. 

 II, p. 186. — Filis 12-18 [i. crassis; sporis depresso-ellipticis, 14-15 

 {j.. latis, 6-7 [1. longis. Inter Algas, in aquis stagnantibus, subsalsis 

 vel dulcibus Neerlandite ad Goes (Van den Bosch), Gallise (Bornet, 

 Flah.vult) et Germania^ prope Friburgum (A. Braun), Novre An- 

 glioe in Amer. f«der. (Collins), Fuegi* (Borge). 



5. Nodularia mainensis F. L. Harv. in BuII. Torr. Bot. Club XVI, 1009 

 1889, p. 188, Nuova Notarisia 1890, pag. 172. — Trichomatibus 

 elongatis, 33-38 [i. latis, «rugineis, articulis brevibus 2-6 et ultra^ 

 plerumque 4-6 [J.. diametro, vagina distincta sed arcta; heterocy- 



stis compressis, ovalibus, aurantiacis, levibus vel brunneo-flavis, 

 ad intervalla plus minus regularia dispositis. 



Hah. inter Vaucheriam sessilem in rivulo « Pashaw 

 Stream » dicto prope « Orono, Maine » Americae borealis (F. L. 

 Harvey). 



Species non suflEicienter desoriptse. 



6. Nodularia paludosa "WoIIe Freshw. Alg. of U. S. pag. 291, Tab. lOlo 

 CXCVIII, fig. 3,4. — Filamentis singulis vel fasciculatis; tricho- 

 matibus subrectis, Itete iierugineis; articulis brevibus, 6-8 [x. crassis, 

 diametro usque 2-pIo brevioribus, granulosis; heterocystis subglo- 

 bosis, luteis. 



Hab. in paludibus Pennsylvaniai et regionis « Colorado » dictae 

 Amer. bor. (Wolle) — Fide cl. auctoris species haec cum A. cu- 

 pressaphila est valde conjuncta. Forsan ambse ecnedem ac iV. Har- 

 veuana? 



7. Spermosira macrospora Reinsch Contrib. ad fl. alg. Prom. Bona' lOll 

 Sp. p. 235. — Ciespitulis ad 2 mm. longis; trichomatibns liberis, 

 subcontortis; cellulis pallide jerugineis, subsphfericis usciue elli- 



