Myxopliycese, Heterocystidese, Microcliaete. 485 



Ilah. in scrobiculis rupiiiiii a,([ua pluviali rcpletis a[)Uil Lardy 

 propc Lutetiani Galiias (Gomont) et in Yorksliire Anglige (West;. 

 — Var. cumbrica W. Wcst in J. R. M. S. 189;2, p. 73!): articulis 

 prope baseni 7,5-8 [ji. crassis, apiceni versus 3 \x. crassis; vagina 

 20-30 \i. crassa; heterocystis intercalaribus, 22-24 >^ 5,5 jx. — In 

 lacubus Ang]i;e (VVest). 



8. Microchaete vitiensis Aslvenasy in Born. et Flab. Tabb-au synopt. '143 

 des Nostochacees fllamenteuses heterocystees pag. 22, in Meni. 



de hi Soc. des Sc. de Cherbourg XXV (1885) p. 214, Jiorn. et Flab. 

 Rev. III, p. 85. — Ciespitosa; strato laxo, tomentoso, brevi; filis 

 mni. vix longis, 7-9 [jl. crassis, basi curvatis, parum incrassatis, 

 sursum leviter attenuatis, erectis, flexuosis; vagina tenui, arcta, 

 hyalina, setate provecta sa^pe ochreata; trichomatibus 5-G \i. crassis ; 

 articuUs (iiain. paulo brevioribus; heterocysta basilari. 



Hah. ad Algas in oceano Pacifico ad insulas Viti, Matulvu (Nau- 

 mann); in C 1 ad o p h o r a et A c e t a b u 1 a r i a in insulis « Bismark » 

 (Dahl); in Liagora coarctata ins. Laysan (Sghauinslandj. 



9. IVIicrochaete grisea Timr. Essai pag. 7, Born. et Thur. Not, Alg. 1144 

 p. 127, tab. XXX, Born. et Fiah. Rev. III, pag. 85 et in Wittr. 



et Nordst. Alg. exs. n. 871, Coll. in ColL, Hold. et Setch. Phyc. 

 bor. Amer. n. 158! Reinb. Cyan. der Kiel. Fohrde p. 170, J. Schmidt 

 Cyan. Dan. pag. 99, c. ic, Borzi in Malpighia I, p. 486. — Strato 

 csespitoso, tomentoso, orbiculari, sordide viridi, in sicco violascente; 

 filis 1 mm. longis, 6-7 \i. crassis, basi curvatis, bulbosis, mox 

 erectis, dense constipatis ; vagina tenui, arcta, continua, hyalina; 

 trichomatibus 5-6 jx. crassis, fusco-olivaceis; articulis diametro di- 

 midio vel triplo brevioribus; heterocysta basilari, hemisphaerica. 



Hab. ad conchas, lapides et Algas majores, inter Zosteram in 

 mari Mediterraneo ad oras Sicilite (BoRzi); in oceano Atlantico 

 Galliae prope Brest (Crouan), le Croisic (Bornet et Flahault) et 

 in litoribus septentrionalibus (Debray etc), Dania^ passini (Osten- 

 peld); in Zosteris portus Chiliensis (Reinboldj; ad littora Novi« 

 Anglite (Collins); ad oras ins. « Mauritius » (West). — Sec Borzi 

 loc. cit. hfec species merum statum evolutionis Calolplchis confer- 

 vicolai sistere videtur. 



10. IVIicrochaete purpurea Johs. Schmidt Danm. l)lagronne Alg. p. 132, 1145 

 in Botan. Tidsskr. 1899, pag. 379 et 412. — Strato maculiforini, 

 adflxo, purpureo, e multis casspitulis parvis, dense congestis, sa^pe 

 seriatis formato; filis arcte constipatis, rectis vel modice arcuatis, 

 brevibus (vix usque ad '/3 nim- longis) nunc erectis, in media parte 



