Eu-Floride», Spermothamniese, Spermothamnion. 1207 



oras Galliae (sec. Kuetzing) pr. «Brest» (Naegkli). — Csespes vix 

 2,5 cm. altus. Fila capillo tenuiora maxime intricata (ita ut nec 

 basis nec apices extricari possint), irregulariter ramosa. Rami ra- 

 mulique divaricati. Articuli diametro duplo longiores, exsiccatione 

 ad genicula contracti obscuriores, in medio perlucentes. Color cae- 

 spitis obscurc purpureus, filoruui sub lente variegatus. Substantia 

 rigidiuscula- Polysporae, sec. Naegeli, ex 10-16 sporis constitutse. 



13. Spermothamnion? sphaericum (Crouan) Naeg. Beitr. Ceram. (1861) L978 

 pag. l - 20 (sub Herpotliamnio), Callithamnion sphairicum Crouan 

 in J. Ag. Sp. II, p. 20, Epicr. p. 11. — Fronde globoso-csespitosa, 

 tilis a basi radiaritibus ramoso-fastigiatis, ramis vagis inferne spar- 

 sis superne densioribus erectiusculis; articulis ad genicula contra- 

 ctis diametro duplo longioribus. 



Hab. in frondibus Ahnfeltiae plicata3 in oceano Atlantico 

 ad « Brest » Galliie (Ckouan). — Cnespites fere sphaerici, densissi- 

 mi, diametro 10-12 millim. Fila a basi quoquoversmn radiantia, 

 inferne elongata simplicia, superne irregulariter dichotonia, ramis 

 erectiusculis fastigiata. Rami sursum vix attenuati. Articuli ad 

 genicula contracti, ellipsoidei, diametro duplo longiores. Fila cras- 

 sitie capillaria. Color fuscescens. 



11. Spermothamnion Schmitzianum Barton in Journ. of Botany 1893, 1979 

 pag. 138. — Fronde nana, filis primariis repentibus, secundariis 

 tenuissiinis, erectis, ramosis, ramis suboppositis simpliciusculis ; 

 tetrasporangiis terminalibus. 



Ilab. in frondibus Halimedse ad Caput Bonae Spei Africse 

 australis (H. A. Spencer). — Mihi omnino ignota. 



l">. Spermothamnion? pellucidum (Farl.) Cfr. J. Ag. Analecta algolo- 1980 

 logica (1892) p. 51, Callithamnion pellucidum Farl. (nescio quo 

 loco descriptuni). Callithamnion pellucidum (Harv.) J. Ag. Sp. II, 

 p. 33 (Spi/ridia pellucida Harv. in Lond. Journ. Bot. III, p. 449) 

 omnino differt. 



Species Callithamniorum ulterius inquirendse, prseeunte illustri Naegeli, qui ad 

 genus Iferpothamnion eas retulit, Spermothamniis verisimillirne aftines. 



16. Callithamnion Lamourouxii (Duby) J. Ag. Sp. II, pag. 23, Epicr. 1981 

 pag. 17. Herpothamnion Lamourouxii Xaeg. Beitr. Cerain. (1861) 

 p. 118, Ceramium Lamouronxii Duby liot. Gallic. II. pag. 970, 

 Mem. Cer. I, tab. II, fig. B. — Valde ca^spitosum, rigidiusculum, 

 substrictum, ramosum, ramis elongatis pinnatis, pinnulis inferion 



