er. RuoposPERMEM. Fam. Rhodymeniacee. 
Puate CCLXXVI. 
RHODOPHYLLIS BARKERIA, Harv. 
Grn. Cuan. Frond flat, membranous, dichotomously or pinnately decom- 
pound, mostly margined with leafy or slender processes, and com- 
posed of two strata of cells ; the medullary stratum formed of roundish- 
angular cells, the cortical of coloured cellules in one or few rows. 
Fructification ; 1, marginal, external conceptacles, containing within 
a pericarp formed of radiating filaments, a compound nucleus, formed 
of bundles of spore-threads radiating from a basal (or central) pla- 
centa ; 2, zonate ¢etraspores, immersed in the peripheric cells of the 
segments or marginal processes.— RHODOPHYLLIS (Kvtz.),from podeos, 
red, and gurror, a leaf. 
Frons plana, membranacea, dichotome v. pinnatim decomposita, segmentisque 
ciliisve marginalibus obsita, stratis duobus contexta ; strato medullari cellulis 
rotundato-angulatis, corticali cellulis coloratis unt- v. pauci-seriatis composito. 
Fruct.: 1, cystocarpia marginalia, externa, pericarpio filis moniliformibus 
radiantibus conflato munita, nucleum compositum ex fasciculis filorum radian- 
tium formatum foventia ; filis demum in sporas solutis ; 2, tetraspore zonatim 
divise, fronde v. lacinulis marginalibus immerse. 
Ruovornyiiis Barkeria ; frond cuneate at base, expanded upwards, mul- 
tifid ; lacinize broad, oblong or cuneate, the smaller ones lanceolate, 
subacute, with rounded axils ; ; cystocarps very numerous, thickly scat- 
tered over the surface of the larger laciniz. 
R. Barkerie ; fronde basi cuneata sursum expansa multifida, laciniis latis oblongis 
v. cuneatis, minoribus lanceolatis subacutis, axillis rotundatis, cystocarpis nu- 
merosissimis per lacinias majores densissime sparsis. 
RuwopornHyuuis Barkerize ; Harv. in Herb. T. C. D. 
CALLOPHYLLIS? expansa, Harv. Alg. dustr. Exsic. n. 390. 
Has. Philip Island, Western Port, VW. 1. H., Cape Shank, Mrs. Barker. 
Grocr. Distr. South coast of Australia. 
Descr. Root a small disc. Frond rising with a cuneate base from a minute 
stem, rapidly expanding into a membrane 10-15 inches long, and as much 
or more in the expansion of the laciniee. The frond is deeply divided, nearly 
to the base, into two or more principal lacinize, which are from one to two 
inches wide ; these are variously cleft, sometimes in a subdichotomous, more 
