Ser. CHLOROSPERMES. Fam. Ulvacea. 
Pirate CCCXL.. 
ENTEROMORPHA CLATHRATA, Grev. 
Gen. Car. Frond tubular, membranaceous, of a green colour and re- 
ticulated structure. Fructification, granules, commonly in fours, 
contained in the cells of the frond. ENrrromorrua (Lin/),—from 
evrepov, an entrail, and popdn, form or appearance. 
Enteromorpua clathrata; frond cylindrical, filiform, slender, highly re- 
ticulated ; branches spreading, much divided, set with divaricated or 
recurved, slender, spine-like ramuli. , 
EnreromorPHa clathrata, Grev. Alg. Brit. p. 181 (an part). Hook. Brit. Fl. 
vol. ii. p. 315. Wyatt, Alg. Danm. No. 34. Harv. Man. ed.1. p. 175. ed. 2. 
p. 214. Kitz. Sp. Alg. p. 479. 
SoLentia clathrata, 4g. Syst. Alg.p. 186. 
ScytTosiPHoN clathratus, Lyngb. Hyd. Dan. p. 66.t. 16. 
ScytosrpHon paradoxus, FV. Dan. t. 1595. f. 2. 
Uva clathrata, 4g. Syn. p. 46. 
Conrerva clathrata, Roth, Cat. Bot. vol. iii. p. 175. 
ConFERVA paradoxa, Dillw. Conf.p.70.t. F. H. Bot. t. 2328. 
Has. In rock-pools, between tide-marks. Annual. Spring and Summer. 
Not uncommon. 
Gzoer. Distr. Shores of Europe. 
Descr. Root a small disc. Fronds densely tufted, often inextricably tangled 
together at the base, from six to eight inches long or more, varying in dia- 
meter from the fineness of human hair to that of stout bristles, excessively 
and irregularly branched ; the branches issuing at all sides, of very unequal 
lengths, patent, and attenuated at the apex, ending in a fine point. The 
principal branches are furnished with a varying number of lesser divisions, 
and all are more or less copiously beset with short, slender, awl-shaped, 
simple or forked, spine-like ramuli, which stand out nearly horizontally from 
the branches. Reticulations of the membrane of large size, and somewhat 
quadrate. Colour of a fine, clear grass-green, becoming paler when dried. 
Substance soft and flaccid, membranous. In drying the plant adheres 
pretty firmly to paper. 
POR rem 
This is nearly related to 2. ramulosa, but is of a much softer 
substance, usually more slender in its tube, and more repeatedly 
