378 
THE SEAWEEDS 
Fig. 190. — Pachymenia prostrata. 
EPIPHLOEA J. Agardh. 
I roud flat, thickish, entire or torn, formed of two strata; the medullary 
of sparingly branched, densely interwoven, jointed threads; the cortical 
of moniliform threads, vertical to the surface, and set in a firm gelatinous 
matrix. Cvstocarps immersed in the substance of the frond, simple, con- 
taining within a gelatinous envelope a mass of rounded spores. Tetra- 
sporangia cruciate, dispersed through the outer stratum of the frond. 
Ejnphloea grandifolia J. Agardh. 
h rond shortly stipitate above, cuneate, very soon dilated, with very stroim 
iolia ; the folia elongate, oblong, up to 30 .cm. long, at the margin sparsely 
dentate or undulate, thick, firm and almost undivided, the whole surface 
fertile. Tetrasporangia cruciate, oblong, subsingle. Colour intense reddish- 
purple. 
Vic+oria (Port Phillip). 
Pachymenia prostrata J. Agardh. 
Frond parchment-like, thick, radiating widely from the centre, prostrate 
rising at the outer side fairly freely ; attachment composed of many fasci- 
culate filaments. Young ramuli elongate, cylindrical, acuminate, simple 
or slightly branched, apices free : adult ramuli with the apices united into 
an expanded shield shape ; the lower ones extending beyond the attachment. 
South Coast of Australia. 
Pachymenia stipitata J. Agardh. 
Frond to 30 cm. long, elongate, obovate-cuneate, with numerous ramuli 
rising from the attachment, subfasciculate ; stipes elongate and com- 
pressed, almost terete at the base, very attenuated. Colour dark purplish, 
almost shining. Substance, when dry, membranous, corneous, and elastic. 
South Australia (Gulf St. A incent, Encounter Bay, Investigator Strait). 
