MyxopTiyceae, Lyngbyese, Lyngbya. 259 



gin.ie firmae, tenues aut retate provecta crassae et lamellosie, hyalinse, 

 rarius luteo-fuscce; trichomata (in speciebus nonnullis) ad genicula 

 constricta, apice recta, ?equalia aut leviter attenuata; meinhrani 

 cellulfB apicalis nonnunquam in calyptram incrassata. 

 Obs. Plantne aquaticse. 



Suhgen. I. Leibleinia (Endl.) Gom. 1. c. p. 120. — Plantae epiphyticse, marinse, 

 filis medio adfixis, utrinque erectis ceespitosis, vaginis tenuibus. hyalinis, 

 trichomatibus apice non attenuatis. Plautee Calotrichis faciem prsebentes. 



643 



1. Lyngbya Bacuium Gom. in Journ. de Botanique IV, p. 354, 1890, 

 Monogr. p. 123, t. II, f. 17. — Csespitulis violaceis 2 mm. altis; 

 filis plus minusve arcuatis, rigidis; vaginis chlorizinc. jodurato 

 Ccerulescentibus; trichomatibus eerugineo-violaceis, torulosis, apice 

 dihitato-incrassatis, 8-11 [i. crassis; articulis subquadratis aut diam. 

 ad 3-plo brevioribus 3-7,5 [jl. longis, contentu tenui-granuloso far- 

 ctis; cellula apicali inflata; calyptra nulla. 



Hab. ad algas Florideas prope « Biarritz » Gallia^ occidentalis 

 (Thuret, Gomont). 



2. Lyngbya Agardhii (Crouan) Gom. Monogr. p. 124, t. II, f. 18-19, C44 

 CaloUirix Agardhii Crouan Liste des Alg. mar. du Finist. p. 372, 

 1860, FI. du Finist. p. 118, t. III, n. 28, Lijnghya Umda Ardis- 

 sone et Straff. Enum. Alg. Lig. p. 73, Ard. Phyc. mediterr. I, p. 279, 

 Hauck Meeres. p. 505. — Ca'spitulis purpureo- aut griseo-violaceis, 



ad sesquicentimetrum <altis: filis modice elongatis, rectis, subrigidis; 

 vaginis levibus, chlorozinc. jodur. haud cierulescentibus ; trichoma- 

 tibus roseolis, siccitate torulosis, apice haud attenuatis, 8-8,5 [i.. 

 crassis; articulis diam. trichomatis 3-4-plo brevioribus, rarius sub- 

 quadratis, 2,5-6,5 [j.. longis, contentu tenui granuloso farctis; cel- 

 lula apicali rotundata; calyptra nulla. 



Hab. algis variis adfixa ad oras Armoricse (Crouan), Liguriae 

 (Ardissone) et Dalmatise (Hauck, Hansgirg). 



3. Lyngbya gracilis (Menegh.) Rcab. Fl. Ear. Alg. H, p. 145, 1865, 645 

 Gom. Monogr. p. 124, t. II, f. 20, Hauck Meeres. p. 506, Johs. 

 Schmidt Cyan. Dan. p. 58, Snyder in C, H. et S. Phyc. b. Amer. 



n. 853!, Leihleinia gracilis Menegh. in G. B. It. 1844, I, p. 304, 

 Kuetz. Sp. p. 279. — Cciespitibus extensis, densis, floccosis, lubricis, 

 purpureo-violaceis, siccitate stepe decoloratis et sordide luteis, ad 

 sesquicentimetrum altis; filis elongatis, flexilibus, angulose flexuo- 

 sis; vaginis arctis, levibus, chlorozinc. jodur. non cierulescentibus; 



