Eu-]?lori(le8e, Schizymeniese, Platoma. 1G45 



PLATOMA (Schousb.) Schiiiitz 118S0] Klorid. p. 1!), Kiciii. Beitr. Florid. 

 IV (1894) p. 20, not. 2, Engl. & Prantl Natiirl. Pdanzenfam. (1897) 

 p. 524, Nemastoma sect. Platoma (Schousb.), J. Ag. Sp. II, p. 160, 

 Epicr. p. 128, Fuci, Cha^toplioras, Rwulariw, Halymeniw, Nemalii, 

 Nemastoincu, GymnophlGea? s^. auct. — Frons comprossa aut plana, 

 furcata aut irregulariter ramosa, nonnunquam o marginc prolifcra, 

 carnoso-gelatinosa, structuram filamentosam manifestam priebens. 

 Stratum medullare crassiuscuhim, filis tenuibus furcatis, rhizoidibus 

 concomitatis; stratum corticale filis anticlinice onHnatis constans, 

 intus hixiusculum, extus densum, minute cellulosum saepe ccllulis 

 ghmduh^sis sparsis instructum. Cystocarpia parva, sparsa, in cor- 

 tice interiori nidulantia, vix corticem tumefacieiitia, poro donata. 

 Tetrasporangia sparsa, cruciatim divisa. 



1. Platoma cyclocolpa (Mont ) Schmitz in Flora 1889, p. 453, Born. 2584 

 Alg. de Schousboe p. 343, Ilalymenia cyclocolpa Mont. FI. d'AIger. 

 p. 116, t. XI, f. h, Fl. Canar. p. 163, Kuetz. Tab. Phyc. XVI, 

 t. 94, f. a-1), Nemastoma cyclocolpa Zanard. Saggio (1813) p. 50, 

 Icon. phyc. Adriat. II, p. 149, t. 76, Hauck Meeresalgen p. 117, 

 Nemastoma m,ultifida J. Ag. Sp. II, p. 166, Epicr. p, 128, Ne- 

 m,asto)na cermcornis J. Ag. Sp. II, p. 167, Epicr p. 129, Florid. 

 Morphol. t. 4, f. 4, Ardiss. Phyc. Medit. I, p. 131, Platoma mul- 

 tifida Scliousb. Icon. ined. t. 416, Alg. n. 295-297, Halymenia 

 multifida J. Ag. Symb. I, p. 19, Alg. mar. Medit. p. 97, Halymenia 

 curmcornis J. Ag. Alg. mar. Medit. p. 97, Kuetz. Sp. p. 716, 

 Gymnophloea furcellata Kuetz. Phyc. gener. (1843) p. 791, Sp. 

 p. 712, Tab. Phyc. XVI, t. 60, f. b-c?, Nemalion comosum Menegh. 

 in Zanard. Icon. phyc. Adriat. II, p. 55, t. 59, Gymnophlfea cer- 

 vicornis Ardiss. Enum. alg. Sicil. p. 37. — Fronde gelatinoso-car- 

 nosa, subplana, sessili, reniformi, irregulariter dichotomo-multifida 

 decomposita, segmentis cuneato-dilatatis supra axillas rotundatas 

 conniventibus inciso-dentatis, dentibus ol)tusissimis brevibus plus 

 minus densis, apice corniculato-multifidis. 



Hab, in mari Adriatico ad Tergeste (Biasoletto) et littus Dal- 

 matiie (Zanardini); in mari lonico ad « Acireale » Sicilise (Ardissone); 

 in mari Tyrrheno ad insulas « Elba» et «Giannutri» (Toscanelli) 

 et in sinu Neapolitano (Berthold); in sinu Lugdunensi-gallico (So- 

 LiER, J. Agardh) ; in mari Mediterraneo ad littus Algerise (Monta- 

 gne); in oceano Atlantico calidiore ad Tingin Africse (Schousboe), 

 ad insulas Canarias (Montagne); eadem ad insulas Bermudas? — 



