/ 
44 — 
Aa Callith. variabile, ceui. certe proximum, initio retali, 
at duplo erassius, ramis vagis rarissime oppositis et artion- 
lorum forma ellipsoideo -oblonga diversum, Call, barbato ei 
Call; intricato quoque adfine at contractius, artienlis brevio- 
ribus, eorumgue forma distinguenda, j 
Collithamnion eruciotum var. radicans filo primario 
zepente radieante, seenndarlis oppositis pinnas simplices 
elongatas secundas gerentibus, artionlis eylindraceis diametro 
3 —3-plo longioribus. 
Hab, in mari Bahusiae; Zoophyta extra taenias e pro- 
£{sndo .protracta perrepens. 
.Fila uncialia subeapillaria; primarium repens, radieibus 
‚elongatis ter quaterve genienlatis ‚globo radicali terminatis; 
secundari2 erecta opposita pinnas plerumque secundas arti- 
eulis 9—12 constitutas ad geniculum, fere quodgne emittentia 
Articuli in radienlis quadruplo, in file primario et secunda- 
ziis triplo dnplove diameiro ‚longiores eylindracei, genicnlis 
. pellueidis, 
Habitus a c exueisto almodum diversus; ut C. varia- 
bile ad C. Turneri ita varietas allata ad speciem primariam 
sese habere videtur, . 
Collithamnion roseum, . 
Duae hos nomine obveniunt plantae diversissimae: 
1, Collith. roseum Hayv, in Britt. Flora (non „Agurdhı 
species). ° 
Conf. rosen Roth. Catal, II. p. 182. Engl. Boten. 
2. 966% . . . . 
2. Callith. polyspermum dg. sp. et Auct, Angl. 
Callith. voseum Ag. sp. p. 164. 
Conf. rosea Beth. Catal, LIL, Pr 145! an Dillw 
tab. 17? 
Rothium et veteres plerosque nomine Conf.. roseae plu- 
xes et almodum diversas formas deseripsisse et distribuisse 
