Eu-Florideae, Crouaniepe, Ballia. L391 



Subfamilia X. CROUANIEiE Schmitz. 



CrouaniecB Schmitz [1889] Syst. Uebers. Florid.p. 17, Schm. et Hauptfl. in Engl. 

 & Prantl Natiirl. Pflanzenfam. (1897) p. 484. 



Frons teres aut complanata, nunc confervoidea ct ramis brevio- 

 ribus abunde ramulosis instructa, nunc uxi centrali articulato et cor- 

 tice e filis valde ramosis lateraliter confluentibas composita. Tetra- 

 sporangia triangule aut cruciatim divisa (nonnumquam tantum septo 

 singulo transverse Mpartita). 



Conspectus generum 



I. Frons subtiliter filamentosa, filis principalibus confervoideis h. e. serie sin- 



gul& cellularum constitutis. 



Ballia Tlarv. — Cystocarpia in axilla ramorum brevium disposita (Species ame- 



i-icanae et australicse regionumque vicinarum). 

 Antlfhamnion Naeg. — C^^stocarpia terminalia. (Speeies hinc inde per omnia 

 maria sparsae). 



II. Frons teres, axi centrali nudo aut rhizoidibus corticato. Ramelli breves ex axi 



egredientes insimul muco cohibiti. 



Crouania J. Ag. — Axis centralis nudus aut tantum modice corticatus. Verti- 

 cilli ramulorum brevium ex axi egredientium discreti aut subcontigui. 



Lasiothalia Harv. — Axis centralis mox rhizoidibus dense vestitus et hac ra- 

 tione imperspicuus. Frons extus pilosa, pilis e mucoso stratu emergentibus. 



III. Frons crassiuscula, complanata, axi centrali corticeque denso constituta. 



Gattija Harv. — Stratum corticale e cellulis monostromaticis constans. 

 I tilocladia Sond. — Stratum corticale exterius densum cellulis anticlinice se- 

 riatis constans, corticale interius laxum. 



BALLIA Harv. [1840] in Hook. Lond. Journ. II (Etym. a domina Aw.v 

 E. Ball, hibernica), Decaisne Plant. Arab. pag. 128, Kuetz. Sp. 

 p. G63, Mont. Voyage Pol. Sud p. 94, J. Ag. Sp. II, p. 74, Epicr. 

 p. r>6, Magnus Morphol. Sphacelar. p. 20, Engl. & Prantl Natiirl. 

 Pfliinzenfam. (1897) p. 497, Sphacelaruv, PhleboHiamiiii et Calli- 

 Ihamnii sp. auct. — Frons erecta, filiformis, plerumque in candem 

 planitiem npposite aut rarius verticillatim ramosa, articulata, mo- 

 nosiphonia, demum ssepius inferne corticata fibrisve secus cau- 

 leni decurrentibus substuposa, ramulis diversi generis, aliis steri- 



