Plate LXXII. 
Fig. 336. CONFEEVA SUTORIA. 
Colour. Dark green. 
Substance. Soft. 
Character of Frond. Thread-like (^filamentous) ; jointed ; forming floating and loosely en- 
tangled fleeces in ditches and pools. Filaments almost the thickness of a hog’s 
bristle, equal throughout ; very long, wavy, unbranched. 
Joints. Once and a half as long as broad ; filled with green colouring matter (endochrome). 
Measurement. Indefinite. 
Fructification. Minute seeds {zoospores) formed of the colouring matter in the joints, and in 
due time bursting through them. 
Habitat. Wisbeach, &c. In ditches and pools subject to the influence of the tides ; some- 
times found growing with C. Linum. 
Like C. Linum^ but a much slenderer plant, with longer-proportioned joints. 
Fig. 337. CONFERVA YOUNGANA. 
Colour. Grass-green ; not glossy when dry; fading to a dull brownish-orange in the herbarium. 
Substance. Soft, but firm. Father woolly to the touch when dry. 
Character of Frond. Short (or sometimes long), dense tufts of jointed threads {filaments), 
spreading over the surface of rocks and wood-work. Filaments as fine as human 
hair ; straight, or nearly so ; clinging together ; unbranched. 
Joints. Very variable in length. Generally once and a half as long as broad, but sometimes 
twice as long, and sometimes only half ; at first, quite filled with dense, bright 
green endochrome, which afterwards contracts into a dark spot in the centre. 
Measurement. One or 2 inches high. 
Fructification. Minute seeds {zoospores) formed of the colouring matter in the joints, collected 
into a round central mass {sporidium), which in due time bursts out. 
Habitat. Our coasts generally. Near Dunraven Castle. Filey, &c. Not uncommon. 
Now Hormotrichum Younganum. See under Fig. 328. 
Fig, 338. OCHLOCH./ETE HYSTRIX. 
Colour. Pale green. 
Substance. Harsh, for so infinitesimally a plant ! 
Character of Frond. A minute hairy patch formed of jointed threads {filaments), radiating 
from a centre, and so forming a round dot. The filaments somewhat branched, and 
usually sending up long, stiff, transparent, unjointed bristles from almost every joint. 
Measurement. A homoeopathic globule ! 
Fructification. Unknown. 
Habitat. In brackish water near the coast ; and sometimes in inland ditches, on stems of 
grasses, leaves of mosses, &c. Very rare. 
The plate is incorrect in representing the bristles as green, they are colourless and trans- 
parent. 
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