Eu-Floridege, Ceramiaceae. 1251 



siphonio fulta. Cystocarpia ovoidea, breve pedicellata, pericarpio 

 tenui instructa. 



1. Tylocolax microcarpus Schmitz loc. cit p. 478, f. 266 B. — Cha- 1959 

 racteres generis. 



Hab. in frondibus Lenormandiae spectabilis ad oras 

 Novai Hollandise australis. 



Familia IV. CERAMIACS^! (Bonnem.) Naeg. 



Ceramiacece Bonnein. [1822] in Journ. Phys. XCIV, p. 190 (Ceraiiiiece), Reichenb. 



Consp. (1828) pag. 27, Naeg. [1817] Neuere Algensyst. p. li)G partim, Earv. 



Nereis Bor. Anier. II (1852) p. 20d, Schm. et Hauptfi. in Engl. & Prantl 



Naturl. PHanzenfam. (1897 j p. 481. 

 Ceramieie J. Ag. [1851] Sp. II, p. 8 (excl. gen.). 

 Ceramiarke Bory [1828] Duperrey Voy. Crypt. p. 219 partim. 

 Ceramideai Gray [1821] Arr. brit. pl. I, p. 320 excl. gen. plur. 

 Ceramece Lindl. [1847] Veg. Kingd. p. 24 (excl. Wrangelia et BinderaV). 



Thallus teres aut complanatus, saepius snbtiliter filiformis, ab- 

 unde furcatim aut plerumque lateraliter ramosus, structura diversis- 

 sima donatus. Cystocarpia omnino extcrna aut cortice inclusa, nuda 

 aut ramulis propriis plus minus laxe ihvolucrata. Gonimoblasti sin- 

 guli aut saepius gemini, plerumque in lobos plures (gonimolobos) di- 

 visi; carposporse fere ex oninibus cellulis caespituli fructiferi effor- 

 matas. Tetrasporangia per frondem sparsa aut in ramis propriis 

 evoluta, solitaria vel aggregata, tunc omnino externa, tunc intra cor- 

 ticale stratum nidulantia, triangule aut (plus minus perfecte) eru- 

 ciatim divisa. 



Conspectus subfamiliarum 



I. Frons eximie confervoidea h. e. e filis uniseriato-articulatis constans. 



Spermothamniece — Frons filiformis, plerumque nuda, lateraliter ramosa. Cy- 



stocarpia terminalia, stepe ramulis involucrantibus concomitata, e gonimo- 

 blastis 1-2 composita. Sporangia triangule divisa, nonnumquam polyspora 

 (sporis usque 60 et ultra). 

 GfriffUhsiece — Frons nuda aut ramulis brevibns verticillatim dispositis vestita. 

 Cystocarpia in ramulis propriis terminalia involucrata. Gonimoblastus (nu- 

 cleus) e gonimolobis 1-2 compositus. Tetrasporangia triangule divisa. 



