Plinoozoospopinae, Rctocarpacea), Ectocarpus. 537 



ad limitcm superiorcm fluxus circa «Biarritz» Gallia; (Bornet ct 

 TnuiiET, 1870). 



5. Pylaiella nana KJellm. Alg. Arct. Sca p. 281, t. 27, f. 13-17, Handb. 885 

 I, p. 83, Born. Notc sur 1' Ectoc. fulvescens Thur. p. fi. — Thallo 

 maculam minutam, diam. 1 mm., in aliis algis formante, e filis 

 repentibus in membranam fere confcrtis fila verticaUa, 750 ^ 15, 

 cyfindrica, plerumque simpUcia emittentibus contexto; sporangiis uni- 

 locularibus (zoosporangiis) 3-pluri-seriatis sphsericis, breve cylin- 

 draceis vel doUofiformibus ; sporangiis pUirilocularibus (gametan- 

 giis) saape ramosis, cylindricis vel elongato-conicis, 80 ^ 20-25, fila 

 verticalia terminanti bus. 



Hdb. epiphytica in Cladophoris in zona littorali ad «Gie- 

 svner « Finm irchia). — Fructificat mense augusto. 



6. Pylaieila Hooperi (Crouan), Cfr. Bornet Note sur TEct. fulv. p. 9, 883 

 Ectocarpus Hooperi Crouan in Maze Hydrophytes de la Guyane 

 franc^aise p. 25 Guadelupe 1868, an Harvey??. — Filamentis dense 

 ca3spitosis, 2-3 cm. altis, 27-40 [}.. latis, subsimplicibus, intertextis et 

 basi flexuosis ibique ramulis hrevibus horizontaliter patentibus in- 

 structis; articulis passim diametro brevioribus vel 2-3-pIo longio- 

 ribus ; zoosporangiis (unilocularibus) in regione mediana filamento- 

 rum evolutis, abbreviatis, saepius geminatis, usque ad 30-seriatis, 



QO u. circ. crassis. 



Hab. ad ins. «Cayenne» ad « Camp Meret» (1865) et ad «Mon- 

 tabo» (1886) in rupibus submersis, a3stu irrigatis, nec non ad saxa 

 immersa in rivulo aqua; subsalsse (Maze, Schramm). 



ECTOCARPUS Lyngb. [1819] Hydrophyt. Dan. p. 130 excl. spec. (E- 

 tym. ectos extra et carpos fructus, quoniam organa fructus sisten- 

 tia sunt externa), Asken. in Botan. Zeitung 1869, Farl. Mar. Alg. 

 of New Engl. p. 68 excl. subgen. Streblonemate, Pylaiella et Ca- 

 psicarpella, Born. Not. Ectocarp. in Bull. Soc. Bot. Fr. T. XXXVIII, 

 Hauck Meeresalg. p. 324, Ardiss. Phyc. Medit. II, p. 65, De To- 

 ni & Levi FI. Alg. Ven. II, p. 50, Reinke Algenfl. Westl. Ostsee 

 1889, P. Kuckuck Ectoc. Kiel. Fohrde in Bot. Centralbl. XLVIII, 

 1891, H. 40-44, De Toni Syst. Uebers. Fucoid. 1891, p. 181, KjeUm. 

 Handb. I, p. 71, Engl. & Prantl NatiirL Pflanzenfam. 60. Lief. p. 

 187, Sauvageau Alg. pheosp. paras. in Journal de Botanique 1892, 

 Macrocarpa Bonnem. [1822] in Journ. Phys. XCIV, p. 193, Lyngbya 

 Gaill. [1828] Dict. v. 53, p. 393 non C. Agardh, Corticularia Kuetz. 

 [1845] Phyc. gcrman. p. 237, Sp. algar. (1819), p. 460, Spongonema 



