240 Eu-FloridcLe, TylocarpccT, Gymnogongnis. 



juncUe, alicc iiiinores breves et paruni divisie, circa noduni radi- 

 caleni densissinic-e, aliie prolongat» decomposit^, omnes lineares, 

 vix 2 millim. lequantes latitudine. Frondes fructificantes longitudine 

 14-20 cm. teiiuant, decompositte segmentis 1-3 cm. distantibus in 

 racliide principali subpinnatim alternantibus patentibus, apicibus 

 segmentorum aliis simplicibus aliis furcatis, saspe adparenter di- 

 chotomis, uno ramo plerumque mox longiore. Color et substintia 

 ut in Stenogrammate intevriipto (Ag.) Mont., a ciua specie pra^sens 

 dignoscitur prassertim frondibus angustissimis. 



GYMNOGONGRUS Mart. [1833] Fl. Bras. I, p. 27 (Etym. gymnos nu- 

 dus et goggros excrescentia), Kuetz. Sp. pag. 788, J. Ag. Sp. II, 

 p. 313, Epicr. p. 208, Schmitz et Hauptfl. in Engl. & Prantl Na- 

 tilrl. Pflanzenfam. 142 (1896), p. 359, Tylocarpus Kuetz. [1843] 

 Phyc. gener. pag. 411, tab. 70, fig. II, Oncotylus Kuetz. [1813] 

 Phyc. gener. p. 411, Sp. (1849), p. 789, Pachycarpus Kuctz. [1843] 

 Phyc. gener. p. 412, Sp. (1849), p. 790, Nodularia Targ. [1819] 

 in Bertol. Amoen. ital. pag. 295 non NodiUaria Mertens [1818] 

 . nec Link [1809] nec Florke, Fnci, Chondri, Sphcerococci, Po- 

 li/ideos, Gigartince sp. auct. veter. - Frons carnoso-coriacea 

 aut cornea. teretiuscula aut plana, repetite furcata fastigiata, su- 

 binde sa^pe plus minns lateraliter ramosa (prolifera), stratis duo- 

 bus contexta, interiore cellulis angulato-rotundatis, exteriore filis 

 verticalibus moniliformibus muco cohibitis constante. Cystocarpia 

 frondi inmiersa, plus minus unilateraliter aut utrinaue prominala, 

 chiusa, nucleum compositum disruptione partis fertilis demum li- 

 1)eratum foventia; nucleoli in media parte dense congesti, placen- 

 taribus lilis nullis separati, carposporas minutas, rotundatas, plu- 

 rimas (sine ordine conspicuo intra celhilas pra^gnantes rotundato- 

 an^mlatas conglobatas) continentes. Tetrasporangia hucusque ignota. 

 "o&s. Frondes nunc teretiuscula; per totani longitudinem, nunc 

 inferne teretiusculai et superne compressa3 aut omnino plana^. nunc 

 plus minus evidenter canaliculatte, dichotomai aut rarius polyclio- 

 tomte, fastigiatie, scgmentis linearibus aut subcuneatis in tronde 

 plana', margine aliquando incrassato integerrimse aut rarissunc 

 crenulatie, recentes subcarnos:e, exsiccata^ subcoriaceoe, niadefactEB 

 odorem gratum fere Viola> spirantcs, in gelatinam haud facile sol- 

 vuntur. Stratis duobus IVons constituitur, interiore cellulis angu- 

 lato-rotundatis, diametro hjngitudinali transversalem parun. supc- 

 rante, intra membranam sa;pc incrassatam endocliroma parmn <-on- 



