OF SOUTH AUSTRALIA. 
191 
Hypnea episcopalis Hooker and Harvey. 
Holdfast branching, frond terete, elongate, much branched, branches 
attenuate, subsimple, densely set with small secondary branches, and erect 
subulate ramuli; stem and main branches bearing several long tendril-like 
branchlets, naked above and thickened and hooked at the extremities. 
Fig. 58 . — Hypnea episcopalis : a, plant; b, a ramulus, 
bearing a conceptacle; c, vertical section 
of a conceptacle; d, a spore cluster from 
the same; e, ramuli, with swell- 
ings in which tetraspores are imbedded; 
f, cross-section of the swelling; g, tetra- 
spore and surrounding cells from the 
same. (After Harvey.) 
Cystocarps small, sessile on the upper face of fusiform, simple, patent 
ramuli. Tetrasporangia in pod-like, pedicellate and mucronate, thickened 
ramuli. Height 15 cm. to 40 cm. or more, 1 mm. to 2 mm. thick. Substance 
soft though cartilaginous. Colour deep-red, becoming scarlet in fresh water. 
The whole South Coast of Australia, Tasmania. Collected in South Aus- 
tralia from Encounter Bay, Investigator Strait, Eastern Bays. . 
B. — Ramuli wider at the base, acuminate. 
