Eu-Floridefe, Ilildenbrandtiefo, Hildenbrandtia. 1713 



1. Pneophyllum fragile Kuetz. Pliyc. <,'oiiGr. p. ;58r), Sp. p. (iOr), 'rab. ^'J88 

 Phyc. XIX, t, 93, f. a-d. — Frondc ciiiereo-albida, irrcgulariter 

 incrustante, fragili. 



Hah. ad frondes Sphicrococci coro nopi fol I i et aliarum 

 Algaruni in mari Adriatico et Mediterranco, 



Genus incertsQ sedis. 



HERPOPHYLLON Farl. [1902] Thalloph. of tlie Gahipagos Islands 

 p. 97 (liltym. herpo serpo et phyllon foHum). — Frons membra- 

 nacea, prostrata, subcircularis vel vage expansa, centro radicibus 

 affixa, structura interne cellulis oblongis vel radiatim elongatis, 

 parietibus distincte colloideis, cellulis superficiem versus rotundatis 

 in stratum unicum corticale transformatis constituta. Sporangia 

 cruciatini divisa, soros verruca^formes supra frondem sparsos effi- 

 cientia. Cystocarpia ignota. 



Obs. Quoad structuram genus, suadente claro Farlow, a Peys- 

 sonnelia reccdere videtur; ncc cum Callymeniw aut Constantinem 

 formis prostratis congruit. Quid vcro sit Peyssonneliopsis Setch. 

 et Lawson plane ignoro. 



1. Herpophyllon coalescens Farl. op. cit. — Characteres generis. 2689 

 Hah. ad « Albermale IsL, Tagus Cove» (Snodgrass et Heller). 

 — Frondcs circ. 4 cm. diam. icquantes, aggregatie, a marginibus 

 coalescentes, thallum indefinite expansum formantes. Sporangia 

 inter paraphyses evoluta, anguste ovalia, 56 ^ 15-20 [a. Paraphyses 

 60 %* 3 {Jv. Species habitum induit Peyssonnelice rugosce Harv. 



Subfamilia IV. HILDENBRANDTIEyE (Trev.) Rabenh. 



Hildenbrandtieai Trevis. [1848] Alghe Coccotalle p. 106, Rabenh. [1868] Fl. Eur. 

 Algar. III, p. 408 (Hildenhrandtiacece,), Hauck Meeresalgen p. 37. 



Frons crustaceo-innata, e cellularum stratis pluribus formata, 

 initio laevigata, fructus tempore punctato-verruculosa. Celluhe minu- 

 tissimae, rotundatcE vel anguloso-rotundatse, plerumque in serics vcr- 

 ticales regulariter ordinatce. Conceptacula (cryptae) superficialia, poro 

 apicali amplo aperta. Tetrasporangia intra conceptaculum numerosa, 



