914 Eu-Floridese, Polysiphoniefe, Polysiphonia. 



tetrasporangiis in ramulis simpliciusculis verrucose prominentibus ; 

 cystocarpiis ramulos subdenudatos occupantibus, singulis v. 2-3- 

 natis, subglobosis, brevissime pedicellatis. 



Hab. m mari Mediterraneo (Giraudy) et Adriatico (Rudolphi, 

 Hildebrand). — Species inter majores, usque ad sesquidecime- 

 trum longa, pennam passerinam crassitie superans, pinnatim ra- 

 mosa decomposita, nunc (juvenilis) tota vestita ramulis vix 2,2 mm. 

 longis, subhorizontaliter egredientibus, a basi longe attenuatis, 

 apice penicillo ex griseo purpurascente filorum instructis, plurimis 

 simplicibus, aliis furcatis aut ipsis in ramos abeuntibus serie ra- 

 mulorum nova instructis ; nunc (senilis) Ceramium brachygonium 

 Lyngbyei remulans , ramis elongatis flagelliformibus denudatis, 

 virgatis, minoribus scilicet ramis (a ramulis ortis) plus minus 

 dense obsitis, hic illic ramulo rigidiusculo subspinuliformi, prio- 

 rem formam prodente instructis. Articuli diametro plus dimidio 

 breviores, sed obsoleti, tota planta usque in apices raumlorum 

 corticata; sectione transversali siphones primarii 4 circa centralem 

 conspiciuntur, corticali strato tecti. Antheridia inter penicillos fi- 

 lorum racemosa. Tetrasporangia in planti denudata evoluta in ra- 

 mulis subsimplicibus inasqualiter verrucosis leviter prominula. 



04. Polysiphonia paradoxa Thur. in Born. & Thur. Notes algologi- 15-27 

 ques p. 64, t. 23-23, Born. Alg. de Schousboe p. 310, Hutchinsia 

 fruticulosa Schousb. Icon. ined. t. 330, Descr. p. 270, Alg. Schousb. 

 n. 437 (non aliorum auctorum). — Fronde tota corticata, e* basi 

 ramosa, ramis ambitu pyramidatis, deorsum nudis, sursum ramu- 

 los fasciculato-penicillatos quoquoversum emittentibus, articulis ra- 

 mulorum diametro vix longioribus, ceteris obliteratis, siphonibus 

 pericentralibus 4, strato celluloso immersis et ab illo vix distin- 

 ctis; tetrasporangiis in ramulis parum mutatis uniseriatis; cysto- 

 carpiis breviter pedicellatis. 



Hab. in frondibus Codii adfuerentis (adnati?) in sinu 

 Gibraltarico (Schousboe). — Structura, frondis omnino Rhodome- 

 lm, fructus autem Polysiphoniai. 



65. Polysiphonia fceniculacea (Drap.) J. Ag. Alg. med. p. 137, Sp. II, 1521 

 3, pag. 1012, Kuetz. Sp. pag. 8:51, Tab. Phyc. XIV, t. 14, f. e-/\ 

 Ardiss. Phyc, Medit. I, p. 412, Hauck Meeresalgen p. 232. Poly- 

 siphonia hirta J. Ag. Alg. Med. p. 138 (cystocarpifera), Sp. II, 3, 

 1). 1014, Kuetz. Sp. p. 832, Ardiss. Phyc. Medit I, p. 413, Poly- 

 siphonia ramentacea Harv. Nereis bor. Amer. II, p. 42, t. XXI A, 

 Conferva pmiculacea Drap. mscr., Hufchinsia fivniculacea Ag. 



