Asperococcus.] ALGiE INARTICULATE. 277 



ous, membranaceous. Boot minutely scutate, naked. Fruc- 

 tification ; distinct spots composed of imbedded seeds, mixed 

 with erect, club-shaped filaments. Grev. Alg. Brit. p. 49. t. 9. 

 — Name ; — a barbarous compound of Latin and Greek which 

 ought not to be tolerated ; asptr signifying rough, and xoxxog, a 

 seed, from the rough surface occasioned by the seeds. 



1. A. fistulosus, (fistulose Asperococcus); frond elongated 

 cylindrical filiform tapering at the base subgelatinous contract- 

 ed here and there. — Asperococcus echinatus, Grev. Alg. Brit, 

 p. 50. t. 9. — A. rugosus, Lamour. — Enccelium ecJdnatum, Ag. Sp. 

 Alg. v. I. p. 145. — E. Lyngbyanum, Grev. Crypt. Fl. t. 290. — 

 Scytosiphon fistid., Lyngb. — S. Filum, var. fistulosus, Ag. Sp. 



Alg.v. I. p. 163 Ulvafistul, Huds.—E.Bot.t. 642.— Conferva 



fistul., Both. 



Rocks on the sea-shore, England, Scotland and Ireland; not unfre- 

 qnent. © . Summer and Aut. 



2. A. castdneus, (red-brown Asperococcus); frond filiform com- 

 pressed coriaceous red-brown attenuated at both extremities. — 

 Scytosiphon castaneus, Carm. MSS. 



On the leaves of Zoslera, coast of Appin, abundantly, Capt. Carmichael. 

 Colvend, Dumfries-shire, Dr. Richardson. © . Spring — Fronds gregari- 

 ous, 4 — 9 inches long, and scarcely half a line in diameter, attenuated 

 at both ends, regularly compressed, of a firm substantial texture and 

 deep chestnut colour. No fructification has been detected on it. — I 

 have no doubt that this is a distinct species from A. fistulosus, with which 

 alone there is any chance of its being confounded. Besides being com- 

 pressed, its texture is much firmer and more substantial, and its colour 

 deeper. Carm. MSS. 



3. A. ? pusillus, (least Asperococcus); frond rounded capillary 

 spuriously articulated brown. Carm. 31 SS. cum Ic. 



On Chorda Filum, Appin, abundantly, Captain Carmichael. Mead- 

 foot, Devonshire, Mrs, GriJJi/hs. ©. Autumn. — The fronds of this 

 diminutive species are so closely aggregated as to give to a section of the 

 plant on which they grow, the appearance of a bottle-bru.sh. They are 

 from 1 to 2 inches long, simple, the thickness of horse-hair, attenuated 

 at both ends, transversely striated in imitation of joints andclo.-ely beset 

 with pellucid fibres. Carm. MSS. 



4. A. Tumbrii (Tumerian Asptrococeus); frond oblong cy- 

 lindrical obtuse attenuated at tin* l>a><> thin ami membranaceous. 

 A. bullosas, Lamour. — Grev, Alg. Brit* p. 51. — EnaeUutn bullo- 

 ium,Ag. Sp.Alg.vA.p. 14(J. — Ulva Turner^ /■/. BoLL 2570 — 

 Gattridiurn Opuntia, Lyngb. Hydroph. Dan. t. 18. 



Hoiks on the sesveoast <>t' SusseXj Afr. Borrtr. Sidmouth, Bfrt. 



Griffiths. Bantry, Ireland, Miss llutchins. Appin, Capt. Carmnhocl. 



©. Summer. — Mrs. Griffith* remarks of this plant, that it is nol ren 

 conspicuous when growing in the water. The cavitj being filled with 



thai fluid and the substance thin and transparent, it appear-, to be ot 

 the colour of the water itself, and then tore not easily M * D, unless the 



light he catl upon it in a particular manner. (Or**.)—- 1 venture to 



hi the Engl, Botany specific name of this plant. It was published 



