558 Eu-Florideze, Rhodymenieze, Champia. 
Sectio I. Species ramulis juvenilibus ad genieula evidenter constrietis submo- 
niliformibus, adultioribus aut conformibus aut, ob strieturas magis obsole- 
tas, imperspicue artieulatis et externe subcontizuis. 
1. Champia parvula (Ag.) J. Ag. Epier. pag. 309, Bigelow On struct. 
of Ch. parv. (Proceed. Amer. Acad. XXIII, 1887, p. 111). P. M. Davis 
Devel. of cystoc. in Ch. parv. (Bot. Gazette XXI) p. 109, t. VII- 
VIIT, Devel. of the frond of Ch. parv. from the Carpospore (Ann. 
of Bot. VI, n. XXIV, 1892) p. 339, t. XXI (ubi descriptio cysto- 
carpiorum et frondis evolutionis e carpospora) ZLomentaria par- 
vula Gail. Résum. p. 19, Kuetz. Sp. p. 864, Tab. Phyc. XV, t. 87, 
f. a-b, J. Ag. Sp. II, p. 729, Chondria parvula Ag. Syst. p. 207, 
Grev. Scot. Crypt. Fl. tab. 946, Gastridium parvulum Grev.. Alc. 
Brit. pag. 119, CAhylocladia parvula Hook. Br. Fl. II, pag. 298, 
Harv. Phycol. Brit. tab. CCX, Chondria impleza Chauv. mser., 
Fucus kaliforimis y. nanus 'Turn. Hist. Fuc. p. 61, Lomentaria 
intertexta Chauv. in Duby Bot. Gall. p. 950, Lomentanria brevis 
Kuetz. Phyc. gener. p. 441, Sp. pag. 864, Tab. Phyc. XVI, t. 88, 
f. d-e (articulis valde abbreviatis), J. Ag. Sp. III, p. 729, Lomen- 
taria tenicforimis De Not. Nov. Algol. p. 67. — Fronde panicu- 
latim ramosa ramisque inferne subeoalescentibus ssepe intricata, 
ramulis in caule primario tubuloso subinconspieue articulato op- 
positis verticillatis aut alternis artieulato-constrictis, articulis utrin- 
que truncatis diametro :equalibus aut sesquilongioribus; tetraspo- 
rangiis per mediam partem ramulorum sparsis; cystocarpiis ovatis, 
ad ramos sessilibus. 
Hab. in oceano Atlantico ab oris Angli: (GnEvILLE, BERKELEY, 
Wryarr) et Gallie (LENonwANpD) usque ad Gades; ad oras Ame- 
rice (HAnvEY); in mari Mediterraneo ad oras Gallie in sinu Lug- 
dunensi (CasrAGNE); in mari Ligustico ad « Genova» (DE Nora- 
RIS); in mari ''yrrheno ad Panormum insule Sicili:& (BErLTRANI); in 
mari Adriatico ad « Malamoeco» Venetiarum (VENTURI) "Tergeste 
(VENTURI, Hauck) et ad littus Dalmati:e (VrpovrcH); an eadem in 
oceano australi ad insulam « Akaroa» (D' UnvILLE) et ad oras Au- 
straliz:e ? (SoxpER). — Cispites 2-7 cm. longi, globosi, dense intricati, 
vix sine dilaceratione frondium extricandi. Frondes tubuloss, pri- 
marie extus vix conspicue articulat:e, intus geniculatee, genieulis 
cellulosis; secundari: omnes stricturis evidentibus articulatz. Ra- 
mificatio sat irregularis, ramis alternis oppositis vertiecillatisque 
sepe in eodem specimine obvenientibus, superioribus sxpe sparsis, 

