78 
THE SEAWEEDS 
Phyllospora comosa (Labill.) C. Agardh. 
The only species, with the characters of the genus. Colour dull and 
olive brown, darkening on drying. Substance very tough, leathery. 
Probably South Australia, Victoria, southern New South Wales, Tas- 
mania, New Zealand. 
CARPOGLOSSUM Kuetzing. 
Attachment a conical disc. Stem flat with pinnate flat phyllodia. No 
cesicles. No special receptacles. Coiiceptaeles scattered over both surfaces 
of the leaves, hermaphrodite. Oogonia monosporous. 
There are three species all confined to Australia, two of them known as 
yet only from Western Australia. 
a Phyllodia pinnatifid C. angustif olium 
(Sond.) J. Agardh. 
aa. Phyllodia stoutly toothed G. quercif olium 
(R. Br.) J. Agardh. 
aaa. Phyllodia simple entire C. confluens 
(R. Br.) Kuetzing. 
Carpoglossum confluens (Sond.) J. Agardh. 
Frond 30 to 90 cm. high, 12 to 19 mm. in diameter, simply pinnate when 
young, twice or thrice compound pinnate when adult. All the divisions 
erect with rounded axils. The ultimate segments are linear-cuneate, to 
12 mm. wide, narrowed at the base, minutely notched at the apex. Con- 
ceptacles are produced in unaltered lateral segments, and finally cover th e 
whole surface of the segment in 4 to 6 longitudinal rows. Colour dark 
olive-brown, turning black on drying. Substance leathery, discharging 
much mjucus in fresh water. Grows from low water mark to a few fathoms. 
South Australia, Victoria, Tasmania. 
MY RI ODE SM A Decaisne. 
Frond dichotomous, caulis terete, leaves flat. No vesicles. Conceptacles 
scattered over both faces of the leaf, hermaphrodite. Oogonia monosporous. 
Seven species have been described, all purely Australian. Only one has 
so far been recorded from South Australia. 
