260 Eu-Floridez:, Bonnemaisoniacez, Delisea. 
Fronde filiformi, alterne pinnatim decomposita, inferne caulescente, 
caule tereti firmiore, pinnis ex tereti compressis a submargine 
alterne egredientibus, juvenilibus mollioribus submembranaceis a 
rachide parum longiore pinnulas conformes emittentibus, ambitu 
subflabellatis, adultioribus in rachide elongata pinnatis, ultimis 
subfiliformibus, pinnulis simpliciusculis subulatis sparsim obsitis ; 
cystocarpiis globosis, adparenter in pedicello tenuiore terminalibus. 
Hab. ad oras Nove Hollandi:e, (WirsoN) et Tasmanise (D." 
LoppER). — Frons demum videtur 15-20 cm. longa, pennam cor- 
vinam (in madefacto specimine) crassitie sequans. 
DELISEA Lamour. [1819] Dict. Sc. Nat. V, pag. 389, XIII, pag. 41 
(Etym. a cl. DELISE, gallico, cui genus dicatum), Montagne in Ann. Sc. 
Nat. Mars 1844, Harv. Ner. Austr. p. 88, Kuetz. Sp. Alg. p. 770, 
J. Ag. Sp. III, p. 779, Epicr. p. 669, Schm. et Hauptfl. in Engl. 
& Prantl? Natürl. Pflanzenfam. (1897) p. 419, Bow4esia Grev. [1830] 
Alg. Brit. Syn. p. LVII, Calocladza Grev. [1836] in Lindl. Introd. 
Ed. II, p. 496, J. Ag. Symb. p. 21, Chondrodon Kuetz. [1847] in 
Botan.;Zeitung 1847, p. 5, Sp. (1849) p. 771, Bonnemaisonice, Sphc- 
rococci, Mammec et Delesseric sp. — Vrons teretiuscula aut com- 
presso-anceps, decomposito-pinnata, alterne serrato-pectinata, plus 
minus eonspicue costata, stratis tribus constituta, tubo centrali 
cellulis minoribus cincto, strato intermedio cellulis magnis rotun- 
dato-angulatis, corticali cellulis minutis, ssepius pluriseriatis con- 
stante. Cystocarpia a parte rachidis pinnarum formata, intra peri- 
carpium sphzarico-ovatum, carpostomio pertusum, enrposporas ob- 
ovato-clavatas, a placentáà basali egredientes, longe pedicellatas fo- 
ventia. l'etrasporangia in verrucis demum nemathecioideis, in utra- 
que pagina apices investientibus evoluta, zonatim divisa. 
Subgen.* [. CTENOCLADIA J. Ag. Sp. III, (18 ), pag. 781, Epicr. (1876) pag. 670 
Frons teretiuscula ciliato-peetinata tubo centrali in juvenili pereursa; extus 
vix conspicue costata, strato corticali cireumcircea fere sequaliter evoluto. 
Cystocarpia in pinnis ad rachidem lateralia, intra pericarpium monostro- 
matieum filis moniliformibus nucleum ambientibus instructa. Sphaerospo- 
1. Delisea elegans (Ag.) Mont, Hook. et Harv. in Lond. Journ. III, 13e:| 
p. 442, Harv. Alg. Tasm. n. 37, Ner. Austr. p. 89, t. XXXIV, Kuetz. 
Sp. p. 770, Tab. Phyc. XVIII, i. 69, J. Ag. . Sp. III; povot1o EDGE 
p. 670, Bonnemai?sonia elegans Ag. Sp. p. 198, Syst. Alg. p. 246, 

