380 
THE SEAWEEDS 
Codiophyllum sqiiamarioicles (J. Ag.) De Toni. 
Frond about 15 cm. long, prostrate, later erect, flabelliform, the upper 
part rugose and proliferous with new fronds, the lower part costate, with 
finer costae flabellate, slightly more prominent; the various flabelli grow 
together at the apices, forming a very dense network of filiform ramelli; 
interstices of the network very small, the translucent spaces not visible 
to the eye. Fertile phyllodia developed on the costae of the lower part 
of the frond, often numerous and sub distichous. 
West Australia (King George Sound). 
CRYPTONEMIA J. Agardh. 
Frond flat, rigid, caulescent, proliferous and branched, formed of three 
strata ; the medullary stratum of longitudinal, slender, closely interwoven 
filaments; the intermediate of roundish cells; the cortical of minute 
cellules. Cystocarps immersed in the substance of the frond. Tetra- 
sporangia cruciate, collected in roundish sori, either under the apices or 
in special fruit leaves. 
Crypt anemia undulata Sonder. 
Caulescent, stem dichotomous, winged above, and passing into basally 
midribbed, broadly linear, forked, curled and bluntly lobulate laminae; 
axils very open, apices blunt. 
Fig. 191. — Crypt^nemia vndulata: a, ulant; b, longi- 
tudinal section of the lamina; c, cross- 
section. (After Harvey.) 
