120 
CRYPTOGAMIA. ALGfE. Conferva, 
Whole plant resembling a net, green, the meshes four to six cornered. Relh. 
Silky, shining, green. Threads solid, nearly as thick as a hair, connected 
so as to form a net with meshes of four, five, or six sides. Dill. 
(From each articulation (forming one side of the mostly pentangular 
areolse,) a new individual is produced entirely resembling the parent 
plant. Vaucher. This is one of the most singular of all the Algae, and 
resembles, when floating upon the water, a fine and beautiful tubular 
net. Hook. 
Netted Conferva. Hydrodictyon utriculatum. Agard. Hook. E.) 
Ditches and pools about Hounslow. (In the ponds of the Physic- 
garden, Cambridge. Relhan. Ditches at New Hall, Henfield, Sussex. 
Mr. Borrer. E.) A. May—Oct. 
(C. nit'ida. Deep shining green; filaments unbranched, slender, 
slippery : joints rather longer than broad, becoming laterally 
conjugated : grains in several close spiral lines. 
E. Bot. 2337— Dillw. t. 4./. c. 
In process of time the .joints, of parallel filaments become conjoined by 
laterally protruding tubes, through which the green contents of one joint 
are conveyed to its associated neighbour, and a dense elliptical green 
mass, supposed to consist of the seeds , is seen in the centre of the receiv¬ 
ing joint, the parallel one remaining empty and transparent. Sometimes 
it seems this transfusion fails, and the joints which do not meet with any 
associate become internally brown, and probably decayed. E. Bot. 
Shining Pond Conferva. Zygnema nitidum. Agard. Hook. Common 
in ponds. Aug. 
Is C. injlata, E. Bot. 2376, really distinct from this species ? E.) 
(4) Threads hairy . 
C. intertex ? ta. But little branched; branches short, of equal thick¬ 
ness ; substance a closely interwoven texture without a mid-rib. 
Hardly an inch high, branches few, about the thickness of common 
packthread, the fibres closely matted together, so as to form a dense sub¬ 
stance like the felt of a man’s hat. I am doubtful if it be not properly a 
sponge. 
(Interwoven Sponge-like Conferva. E.) Specimens sent by Major 
Velley from Weymouth, and by Mr. Stackhouse from the Cornish coast. 
C. SFONGricfsA. Little branches very short, undivided, tiled on all sides. 
Huds. 5Q6. (Joints short; capsules oblong, on pedicles. Dillw. 
Dillw. 42— E. Bot. 2427. E.)— TI. Ox. xv. 9. row 2. 6. 
Shoots four inches long, growing in a circular form. Bj'anches few, tough, 
black, wholly covered with greenish short fibres. H. Ox. p. 650. 6. 
Rises from a single stem, two or three inches high ; branches and their 
subdivisions all of one size. When first taken up it is like a wet sponge, 
which is caused by very fine filaments on every part of its surface, which 
point upwards and retain the water. Colour very dark brown, inclining 
to black. Mr. Stackhouse. 
(Scattered Spongy Conferva. Clad.ostephus spongiosns. Hook. E.) 
Rocks and stones in the sea. Sandy crevices at low water mark, near 
Fowev, Cornwall Mr, Stackhouse, P. Jan,—Dec, 
