norìÌMs, corticalibus submonostromaticis; cystocarpiis intra
pericarpium inflatum nucleum minutum foventibus.
(leims forsiin sui juris, fructu niilii ignoto, nondum rite
definiendum.
11. Ch. p o d a g r i c a (Harv. mscr.) fronde depressa irregulariter
expansa ramos vesiculosos sursum emittente, vesiculis ro-
tundato-obloiigis obovatisvo simplicibus aut paucos articulos
consimiles emittentibus. Harv. Aly. exs. Fr. Isl.
n:o 53.
Hab. in oceano pacifico ad Friendly Islands (Harvey!).
Membrana transverse secta offert fere structuram, quam Harvey
Ch. Cliftoni in Phycol. austr. tab. 5 7 tribuit.
12. Ch . C l i e t o n i (Harv. in Tr. Irish. Acad. Voi. 22 p. 556)
erectiuscula articulato-constricta decomposito -ramosa, ramis
ab apice et infra apicem prolificantibus subverticillatis,
articulis inferioribus clavatis, terminalibus ellipticis,
istlimis brevissimis crassiusculis. Harv. Phyc. austr. tah. 5 7 .
Nova Hollandia occidentalis.
23. Ci-i. M u e l l e r i (Sond. in Linn. 25 p . 693) erectiuscula articulato
constricta decomposito-ramosa, ramis ab apice et
infra apicem prolificantibus di-trichotomis, articulis infi-
mis clavatis, superioribus elliptico-oblongis, isthmis in
pedicellum filiformem contractis, cystocarpiis heniisphæ-
ricis sparsis. Harv. Phyc. austr. tab. 138. Lomentaria
valida Kiitz. tah. Phyc. Voi, X V tah. 85?
Nova Hollandia occidentalis et australis.
Species inquirendæ.
CIIONDROSIPHON M e n e g h in ia n u s Kiltz. Phyc,; tah. Phyc. Voi.
X V tah. 80.
Ch .? r e p t a n s Zanard. Icon. adriat. tab. 75.
C h r y s . ra d ica n s Mont. I I . Alg.; J. Ag. Sp. p. 365.
C h o n d b o th . ie e b g u l a e e Kiitz. tab. Phyc. Voi. X V tah. 82.
C h . ch il o en sb Kiitz. ihm tah. 83.
Ch . d iv a b i c a tu m Kiltz. ihm.
C h o n d e . ? N ovæ H o l la n d iæ Kiitz. ; J. Ag. Sp. p . 368. Sec.
iconem Kiltz. tab. Phyc. Voi. X V tab. 78 vix Chylocla-
clia; an Rhabdonia nigrescens?
Ch . m u l t i e a m b a Sond. in Linn. 1852 p . 681 cum Chyl. divaricata
J. Ag. comparatur; an itaque Hymenocladiæ sp.?
Cn. G e i .id io id e s Harv. in Syn. Pliyr, austr. n:o 603.
Cn. CATENATA Ilurv. e Japonia.
CiL? CÆSPi'L'osA Harv. Fl. Nov. Zel. p. 253.
1/XIX. Champia Pesv. mscr. in Lamour. Ess. p . 51. J.
Ag. Sp. p. 368.
Frons teretiuscula aut compressa ramosa tubulosa et diaphragmatibus
cellulosis articulata, filis sparsissimis dia-
pliragmata nunc jungeiitibus; periplierico strato cellulis
rotundato-angulatis, interioribus majoribus contexto. Cystocarpia
Awira pericarpium ovatum, carpostomio regulari
pertusum, nucleum oblongum subsimplicem, tela arachnoidea
filis tenuissimis reticulatim anastomosantibus constante
cinctum, foventia; fila gemmidiifera a fuiido placentari
egredientia, articulata et reticulatim anastomosantia,
intra articulos superiores gemmidia oblonga aut
obovato-augulata, sine ordine conspicuo conglobata et
quasi muco cobibita,' generantia. Sphærosporæ, in ramulis
sæpe aggregatæ, in cellulis infra-corticalibus evolutæ,
magnæ, spbæricæ, triangule divisæ.
Structura cystocarpii Champia a Lomentaria admodum
recedit, cum Rbodymeniaceis magis adspectu nuclei maturi
conveniens. In Champia vero nucleus cingitur tela araclinoi-
dea admodum conspicua et tenaci; quæ si analoga quoque in
fruclu juvenili RhodymeniacearUm existere censeatur, in maturescente
fructu tantum ut fila dilacerata paucissima restât.
Sphærosporæ magnæ triangule divisæ, aggregatæ et quasi
sorum formantes, affinitatem cum Lomentariis probantes cuidam
forsan viderentur. Majori jure hoc respectu Champia
et Chylocladia comparantur.
* Ramulis juvénilihus ad genicula evidenter constrictis submoniliformibus,
adidtiorihus aut conformibus, aut, stricturis
magis obsoletis, obsolete articidatis et externe suhcontigtiis.
1. Cii. PAEvuLA (Ay. Syst. p . 207) fronde paniculatim ramosa
ramisque inferne subcoalescentibus sæpe intricata, ramulis
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