518 Eu-Floridee, Rhodymeniee, Rhodymenia. 
XVIII, t. 92-93, SpA rococcus palmettoides Bory Voy. Coquille 
n. 64?, Spheerococcus Palimetta var. australis Ag. Sp. Alg. p. 246, 
Syst. p. 215, Rhod yimenia Palmetta Hook. et Harv. Crypt. antarct. 
p. 169 (non aliorum), SpAcrococews tenwifolius Kuetz. Phye. ge- 
ner. p. 409. — Caulescens, stipite elongato alterne ramoso, ramis 
in frondes flabellatim expansas decomposito-diehotomas abeunti- 
bus, segmentis linearibus cuneatisque; eystocarpiis hemisphericis, 
in disco segzmentorum p:enultimorum congestis. 
Hab. in oceano Pacifico ad littus Peruvi: et Chiloéós (HvwBorpr, 
D'UnvrrLE, Exped. VEeTTOR Prizsawi); ad insulas Malouinas (FnEvor- 
NET). — Radix fibrosa dicitur, caule pedali et ultra, filiformi, pennae 
columbin:x crassitiem sequante, alterne ramoso, ramis 2-8 cm. lon- 
gis, plerumque brevissimis et statim in frondes abeuntibus. Fron- 
des 4-10 cm. longs, juniores cuneat?e demum  flabellatze.et de- 
composito-dichotom:e, segmentis linearibus, 4-8 millim. latis. Cy- 
stocarpia in segmentis psnultimis plurima, hemisphzrica, fere api- 
culata. Color quam in affinibus magis purpurascens; substantia 
eadem, in caule eximie cartilacinea. 
Sectio 11I. CL1iNoPHORA J. Ag. Epicr. p. 931: Species tetrasporangiis (ubi co- 
gnitis) in sorum evolutione strati cortiealis nematheciosum, infra apices 
frondis expansum collectis. 
15. Rhodymenia linearis J. Ag. Symb. I, p. 13, Sp. II, p. 579, Epicr. 
pag. 331, Harv. Fl. Nov. Zel. pag. 248, Spherococcus linearis 
Kuetz. Tab. Phyec. XVIII, tab. 91, f. c-d (ex oris chilensibus)?, 
Stenogramma, interrupta var. sterilis Harv. Alg. Austral. ex- 
siec. n. 977. — Stipitibus elongato-filiformibus basi ramis ar- 
cuatim deflexis et adparatum radicalem fibrosum formantibus, 
superne erectiusculis in frondes dichotomas flabellatim  expansas 
abeuntibus, segmentis linearibus cuneatisve, apice sspe proliferis, 
prolifieationibus a filiformi stipite exeuntibus; ecystocarpiis apicu- 
latis, per frondem sparsis; tetrasporanglis in sorum peltieformem 
nematheciose evolutum, discum segmentorum terminalium oceu- 
pantem eolleetis. 
Hab. ad oras Nove Hollandie, Tasmani:x et Novze Zelandize. — 
Frons 8-10 em. aut quod exsuperat longa, decomposito-dichotoma, 
segmentis flabellatim expansis, omnino linearibus, 2-5 millim. la- 
tis, terminalibus obtusis aut emarginatis. Axillae acutiuseulw. Cel- 
lule strati interioris angulato-rotundat:s (non oblongz, ut in AAod. 
leptophylla J. Ag.) fere secus duas series disposite. Cystocarpia, 

