Eu-Florides, Nitophylle:, Nitophyllum. 623 
— Fragmentum tantum vidit speciei conditor. Segmentum  multi- 
fidum, circiter 10 cm. longum, basi cuneatum, lineare, in lacinias 
4 principales divisum, laciniis vero e dichotomo pinnatifidis, laci- 
nulis ultimis plerumque angustioribus. Margines integri, plani aut 
subundulati. Color purpurascens. Substantia cartilaginea. 
NITOPHYLLUM Grev. (1830) Alg. Brit.. p. 77 mut. limit. (Etym. nizo 
aut «pto abstergo, abluo et pAyllon folium), J. Ag. Sp. II, p. 651, 
Epier. p. 446, Sp. III, 3, p. 90, Sehmitz et Hauptfl. in Engl. & 
Prantl Natürl. Pflanzenfam. (1897), pag. 410 (non Ntophyllum 
Neck. [1790] Elem. Bot. III, p. 336), Aglaophylluwm Mont. [1839] 
in D'Orbigny Voyage p. 939 in notula, Flor. Canar,, cellul., p. 150, 
Kuetz. Sp. p. 867, Cryptopleura Kuetz. [1843] Phyc. gener. p. 441, 
Sp. (1849) p. 870, Schzzoglossum Kuetz [1843] Phyc. gener. p. 443, 
Sp. (1849) p. 870 (non ScAzoglossum KE. Meyer 1837), Acerosorium 
(Zanard.) Kuetz. [1869] Tab. Phyc. XIX, p. 4, t. 10, fig. a-5, J. 
Ag. Epicr. pag. 465 (ut subgenus), AJzzophyllum Reinsch [1875] 
Contrib. Alg. Fungol. pag. 53 (Rez. enervum, Rhiz. nervoswm), 
Wormskjoldia Avesch. [1858], Post. et Rupr. [1840] Illustr. Alg. 
p. 15 non Spreng. [1827], Dawsonia Bory [1826] Voy. Coquille 
n. XXIV, Hymenema Grev. [1850] Alg. Brit. p. XLVIII, Kuetz. 
Sp. (1849) p. 872, Aspidophora Mont. [1852) Fl. chil. VIII, p. 287, 
Syll. Crypt. p. 408 (Asp. Gaudichawdii), — Frons plana, mem- 
branacea, cellulis angulatis areolata, avenia venisve superficialibus 
subvagis instructa, subsessilis aut stipitata, stipite costato, nervo 
mox evanescente, nunc per frondem sensim longius producto, su- 
perne sspe unicà serie cellularum constituta, inferne pluribus e 
regione positis, intimis subdiversis. Cystocarpia in fronde sessilia, 
. depressa, intra pericarpium radiato-cellulosum, carpostomio aper- 
tum, nucleum simplicem foventia; placenta basalis, lata expansa, 
sursum fila carposporifera plurima emittens; fila articulata di- 
chotomo-fastigiata, superne invicem libera, in articulis terminali- 
bus clavato-obovatis carposporas subseriatas foventia. Sori ambitu 
definiti, sparsi aut certis locis provenientes, tetrasporangia pauca, 
rotundata, triangule subdivisa evolventes. 
Obs. Frondes tenue membranace:xw, roses, aliquando purpure: 
et immo livide, nunc minute in aliis Algis aggregate, nunc majo- 
res et czspites proprios constituentes, sessiles aut plerumque sti- 
pitate, venis omnibus destitut:e aut venoss, venis nempe in sti- 
pite conjunctis fere costam formantibus, dein in lamina invicem 
