136 
CRYPTOGAMIA. ALGM. Conferva. 
very soft, and different in its habit from the preceding, which is more 
rigid and of a darker green. The joints are not swollen. Mr. Stack- 
house. (Probably a distinct species. E.) 
On the keels of boats at Godstow. Bobart in Dill. 27. 
(C. lichenic'ola. Red: filaments upright, crowded, alternately 
branched, rougliish: joints swelling, about as long as broad. 
E. Bot. 1609. 
This singular production grows parasitically on several crustaceous Lichens, 
having the appearance of brick-dust. Stems scarcely a line in height, 
erect, forming tufts, which, under a magnifier, look like velvet. 
Red Lichen Conferva. Communicated by Charles Lyell, Esq. to Mr. 
Sowerby, from Beech trees of the New Forest. E.) 
(C. pectinaYis. Green; filaments brittle, slippery, unbranched, 
tapering, compressed; joints thrice as broad as long, their central 
part opake. E. Bot. 
Dillw. 24 —E. Bot. 1611. 
A very minute species ; stems not more than half an inch long, compressed. 
Joints remarkably short. On drying, it turns to a greenish ash-colour, 
and shines as if covered with gum-water, thus adhering firmly to glass 
or paper. Dillwyn. 
Short-jointed Conferva. Discovered by Mr. W. Borrer, growing on 
decayed leaves in ditches at Hurst Pier-point. March. E.) 
C. serPcea. Very much branched, rather long; green: little branches 
crowded, as it were from a centre; very fine. 
Dill. 5. S3—FI. Dan. 651. 1. 
Four to eight inches high, divided into very numerous crowded short 
branches; fine green in fresh, pale green in sea water. Dill. 
(Green Silky Conferva. E.) Rocks and stones in the sea. Isle of 
Sheppey. In the New River, near London. P. Jan.—Dec. 
C. glomera'ta. Little branches rather short, manv-cleft. 
{Diliw. 13— E. Bot. 2192. E.)— Dill. 5. 31— H. Ox. xv. 4. row 3. 2— FI. 
Dan. 651. 2— Park. 1261.1. 
From four to twelve inches long, or more: green. Branches numerous, 
divided and subdivided, the mid-rib still thicker than the other parts, but 
the extremities ending in numerous hair-like, short, and very fine divi¬ 
sions, so as to have a bushy appearance. Dill. 
(Green Clustered Conferva. E.) Inbrooks and springs. A. April—Oct. 
(C. griffithsia'na. Pale red, repeatedly branched: little branches 
solitary or clustered, very short, simple, awl-shaped; joints as 
broad as long: capsules on the little branches, sessile, globose, 
sometimes aggregate. 
E. Bot. 2312. 
Grows to the height of three or four inches; ultimate branches not a quarter 
of an inch long. Capsules whitish externally, but inclosing a darkish- 
red nodule. The red seeds within are sometimes seen separate and dis- 
tinctly. 
