572 Eu-Florides, Rhodymenies, Chylocladia. 
liformem vix millimetrum longum  moniliformiter contracti. Arti- 
culi diametro transversali 9-7 millim., longitudinali 7-15 millim. 
obovato-ellipsoidei, basi nempe in pedicellum contracti, apice articulo 
consimili aut articulis 2-5 superati, unico terminali, altero aut binis 
lateralibus. Specimina exsiccata flavescentia. Substantia caulis car- 
tilaginea, ramulorum membranacea. Caulis dissectus cellulas mon- 
strat oblongas, parietibus subundulatis separatas, granulis amyla- 
ceis subglobosis, jodi ope coerulescentibus, omnino farctas ; in 
ramulis strata cellularum duo discernere licet; interiores cellul:e 
angulatze majores, exteriores rotundatze minores. Fila interiora, 
observante claro J. Agardh, nulla. | 
pvc cnm 
CHYLOCLADIA Grev. [1833] in Hook. Brit. Flora pag. 297 excl. sp. 
(Etym. ehylos succus et claGos ramus), J. Ag. Sp. II, pag. 360, 
Epicr. pag. 295, Ardiss. Phyc. Medit. I, pag. 195, Debray Struct. 
Chyl, Champ. et Loment. (1886, 1890), Hauptfl. in Flora 1892, 
Chondrosiphon Kuetz. [1345] Phye. gener. p. 498, t. 53, f. ILI, 
Sp. (1849) pag. 860, Chondrothamnion Kuetz. [1815] Phye. ge- 
ner. pag. 4938, tab. 53, fig. II, Chrysymenic sect. Heliscophora 
Endl. Gen. plant. suppl. III, paz. 42, Chrysymenic, Chondric, . 
Fuci, Lomentarie, Gastridi, Gelidii, Spharococci sp. — Frons 
teretiuscula, ramosa, tubulosa, continua etsi stricturis articulata, 
sepe filis sparsissimis àarticulatis tubum percurrentibus instru- 
cta, peripherico strato cellulis rotundato-angulatis, interioribus 
majoribus, corticalibus minutis contexto. Cystocarpia intra pericar- 
pium externum, carpostomio munitum, nucleum oblongum subsim- 
plicem, telà arachnoideà filis tenuissimis reticulatim anastomosan- 
tibus constante cinctum foventia; fila carposporifera a fundo pla- 
centari egredientia articulata et reticulatim anastomosantia, intra 
articulos exteriores carposporas oblongas aut obovato-angulatas sine 
ordine conspicuo demum conelobatas et quasi muco cohibitas ge- 
nerantia. Tetrasporangia in ramulis dilatatis demum aggregata, im- 
mersa, magna, spherica, triangule divisa. Antheridia a cellulis mi- 
nutissimis in soros superficiales collectis constituta. 
Obs. Frondes cylindracese aut leviter compresss, vage ramos: 
aut subopposite pinnata, canali angusto tubulosz, gelatinoso-mem- 
branaces, roseo-purpurascentes aut in olivaceum tendentes. Cysto- 
carpia in ramis externa, nune fere globosa, nunc subcouica et de- 
mum basi lagenzformia. Tetrasporangia in ramis incrassatis im- 
mersa. Duplici strato frondes constituuntur. Internum filis articu- 
