.314 Eu-Flori(lc<T, Cystocloiiie;p, Cystocloiiiam. 



(1896), p. 369. — Frons teretiuscula, vage rainosa, tribus stratis 

 constituta, medullari filis elongatis ramosis et anastomosantibus, 

 arcuatim inter cellulas strati medii rotundatas, superficieni versus 

 minores, excurrentibus, corticali cellulis verticaUbus fere unica 

 serie dispositis. Cystocarpia in ramulis circumcirca nodoso-intumo- 

 scentibus immersa, intra pericarpium cellulis subconcentricis liinc 

 radiatis (demum ruptum) nucleum compositum, ambitu definitum 

 foventia; nucleoU in media fronde dense congesti, filis placentari- 

 bus tenuioribus reticulatim ambientibus invicem distincti, rotundati, 

 carposporas paucas, rotundato-augulatas, majusculas, sine ordine 

 conspicuo congiobatas, perisporio liyafino cinctas continentes. Te- 

 trasporangia in ramis incrassatis iumiersa, in strato corticali ni- 

 dulantia, elongato-pyriformia, zonatim divisa. 



Obs. Frondes piirpurese, filiformes, ramosissinKe, ramificatione 

 nunc magis dicbotonia nunc ramulosa, ramis utrinque attenuatis 

 filiformibus; recentes carnoso-monbranacea^, exsiccataj parum car- 

 tilaginese, flexiles et chartse laxius adhasrentes. 



1. Cystoclonium purpurascens (Huds.) Kuetz. Phyc gener. p. 404, <31g 

 t. 58, Sp. p. 756, Tab. Phyc. XVIII, t. 15, J. kg. Sp. II, p. 307, 

 Epicr. p. 239, Hauclc Meeresalgen p, 149, fig. 61, Buffham Ou 

 Anther. Florid. (1893), pag. 293, tab. 13, f. 8, Kjefim. Alg. Arct. 

 Sea p. 159 (forni^e), Fucus purpurasce ns Huds. FI. Angl. p. 589, 

 Sm. Engl. Bot. tab. 1243, Turn. Hist. tab. 9, Stackh. Ner. tab. 18, 

 Sphcurococcus purpurascens Ag. Sp. Alg. I, p 318, Syst. p. 23G, 

 Fl. Dan. tab. 1835, Gigartina purpurascens Lamour. Ess. p. 48, 

 Lyngb. Hydr. Dan. p. 46, tab. 12, Gracilaria purpurascens Grev. 

 Alg. Brit. p. 122, Hypnea purpurascens Harv. Phyc. Brit. t. 

 CXVI, Fucus tuherculatus Lightf. FI. scot. II, p. 926, Fucus scor- 

 pioides Fl. Dan. tab. 887, Fucus corallinus FI. Dan. tab. 709, Fa- 

 cus capillaceus Esp. Fuc. tab. 35, Plocuria purpurascens Endl., 

 Fucus acicularis Esper Fuc. tab. 91 (sec. J. Agardh), Gracilaria 

 cirrhifolia Suhr mscr. — Fronde tereti, subpinnatim decomposito- 

 ramosa, ramis ranmlisque filiforniibus utrinque attenuatis, niedio 

 subcrassiore; cystocarpiis in ranmlis nodoso-inflatis immersis, cir- 

 cunicirca prominentibus, singulis aut pluribus concatenatis. 



Ilab. in lapidibus et Algis oceani Atlantici a littore maris gla- 

 cialis usque ad Galliam inferioreni; ad littus America^ borealis (Haii- 

 vey); an eadcni in mari Adriatico? (Kitaibel sec. Istvanffi). 

 — Frons a radice scutata aut dcmum, fibris radicalibus ab infe- 



