Plate LXII. 
Fig. 288. CODIUM ADHERENS. 
Colour. Dark green. 
Substance. Gelatinous ; densely spongy. 
Character of Frond. A velvety crust, spreading over the surface of rocks in irregular patches. 
Measurem.ent. Patches, 2 or more feet in extent. 
Fructification. Not observed, hut no doubt the same as in other species of Codimn (refer under 
Figs. 284 and 285). 
Habitat. Torquay. Land’s End. Gorran Haven. Falmouth. Co. Antrim, &c. On rocks 
near low- water mark. Very rare. 
Fig. 289. CODIUM AMPHIBIUM. 
Colour. A grassy green. 
Substance. Soft ; densely spongy. 
Character of Frond. Minute ; upright ; cylindrical ; round-topped ; rising in great numbers 
from a spreading base of entangled threads {filaments) ; usually simple ; rarely 
branched. 
Measurement. From J of an inch to 1 inch high ; the patches spreading indefinitely. 
Fructification. Not observed, but no doubt the same as in other species of Codium (refer under 
Figs. 284 and 285). 
Habitat. Roundstone, and at the head of Birtirbui Bay, Galway. On turf-banks at high- 
water mark ; washed over by the tides, but exposed to rain and air at other times. 
■ Fig. 290. VAUCHERIA MARINA. 
Colour. Bright green ; becoming rather brownish when old ; somewhat glossy when dry. 
Substance. Exceedingly soft and limp. 
Character of Frond. Fine tufts of hair-like threads {filaments). Filaments not jointed ; 
tubular throughout ; filled with green colouring matter {endochrome), which often 
runs partially out ; irregularly branched ; occasionally forked. Branches few, long, 
upright, blunt. 
Measurement. From 1 to 3 inches long. 
Fructification. Small, stalked, pear-shaped sacs {sporangia)., containing a dark-green mass, 
wLich changes at maturity into minute seeds {zoospores ; so called from having at one 
period a motion as if endowed with animal life) ; borne on the branches. 
Habitat. Torbay. Salcombe. Appin, &c. On algae and mud between tide-marks. 
This little plant grows profusely, even to a troublesome extent, in aquariums, fruiting 
regularly in the summer. 
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