SIO Myxophycese, Lj^ngbyese, Symploca. 



natis, 4,5-5, c. vag., 6,5-9 [x. crassis; articulis diain. cequalibus vel 

 subaequalibus (nonnunquam paulo longioribus) granulatis, geniculis 

 subhyalinis, non contractis (in specim. siccis leviter contractis); 

 vaginis achrois, homogeneis, levibus, superne ssepe vacuis. 



Hah. in pascuis humidis GermanicTe (Kuetzing, Braun, Ra- 

 BENHORST, Kirchner), Austrite (Heufler), Bohemise (Hansgirg). 



17. Symploca elegans (Ag.?) Kuetz. Phyc. gen. p. 201, Sp. Alg. p. 270 

 non p. 272, Tab. Phyc. I, p. 43, t. 74, f. I, Rab. Fl. Eur. Alg. II, 

 p. 156, Lynghya smaragdina (Kuetz.) Hansg. var. y symplocifor- 

 mis Hansg. et b. elegans Hansg. Prodr. II, p. 89, "W". et N. exs. 

 n. 7751 Oscillatoria elegans Ag. in Kuetz. Tab. Phyc. I, t. 38, Alg. 

 exs. n. 128 (fide Hansg.), Oscillatoria thrix Cda.? 0. Spha^rodesmus 

 Cda. AhH. de Carlsb. 1836, p. 208, t. I (fide Hansg.). — Strato fasci- 

 culato, caespitoso, a^rugineo; fasciculis erectis, flexuosis, anastomo- 

 santibus, filis tortuosis, parallelis, agglutinatis; vaginis subcrassis, 

 ambitu mucosis, chlorozincico jodurato non cterulescentibus; tri- 

 chomatibus pallide asrugineis, siccitate ad genicula leviter constrictis, 

 1,3-2 [X. crassis; articulis segre conspicuis, diam. trichomatis subse- 

 quilongis, aut eo longioribus usque 2-4 [i. ; dissepimentis haud gra- 

 nulatis; cellula apicali subconica, rotundata; calyptra nulla. 



Hab. ad ostia speluncarum, unde aqua thermarum Euganearum 

 effunditur (Meneghini) et in thermis Carolinis Bohemia^ (Corda?, 

 C. Agardh?, Hansgirg). — Var. incrustata Kuetz. Sp. Alg. p. 271, 

 1849, Rab. Fl. Eur. Alg. II, p. 157; fasciculis calce incrustatis in 

 pulvillum concretis. 



18. Symploca Ralfsiana Rab. Fl. Eur. Alg. II, p. 157, Cooke Brit. 

 Freshw. Alg. p. 263, t. 103, f. 1 excl. syn. non Kuetz., Oscil- 

 laria Friesii Harv. in Hook. Brit. Flor. II, p. 373, Mackay Flor. 

 Hibern. III, p. 238, Symphyosiphon plicatus Kuetz. in Bot. Zeit. 

 1847, p. 197, — Strato bryophilo, chalybeo-olivaceo, nigrescenti; 

 fasciculis usque ad 2-3 cm. altis, dense aggregatis, saspe coalitis, 

 subuliformibus, strictis; trichomatibus pallide aerugineis vel chaly- 

 beis, dense conglutinatis, distincte articulatis 3,7-4,5 [x. crassis, 

 apicem versus submoniliformibus; articulis diam. iequalibus vel 

 parum longioribus, contentu granuloso ; vaginis amplis, firmis, 

 achrois, homogeneis, pellucidis, superne plerumque vacuis. 



Hab. inter muscos Angli;e, Hiberni;e, Scotite (Harvey, Mackay, 

 Cooke), Germaniie? (Rabenhorst tantum). — Adest forma vaginis 

 crassioribus, lamellosis, saipe trichomata bina inciudontibus [Di- 

 chonema fasciculare Corda). In Bohemia. 



