Enteromorpha.] ALG.T-: INARTICULATE. 313 



it is but justice to his memory to state that he remarked in a note that 

 this plant and Bangui vclutina of Lyngbye were more nearly allied to the 

 U/vce, than to the gelatinous Bangicc of the 2d Division. 



48. Tetraspora. Link. Tetraspora. 



Frond tubular or- inflated, gelatinous. Fructification; minute 

 granules, loosely arranged in fours. Ag. — Name; nr^x.four, 

 and o-irogx] the seed; from the quaternary arrangement. 



1. T. lubrica, Ag. (lubricous Tetraspora); frond quite simple 

 tubular subgelatinous waved and sinuated. Ag. Syst. Altj. 

 p. 188. — Ulca lubrica, Both. — Ag. Sp.Alg. v. Up. 415 — Gastri- 

 dium lubricum, Lyngb. 



In gently running fresh-water. Hellesdon, Norfolk. Appin, Captain 

 Carmichael. — This forms irregular masses of considerable extent, and 

 is exceedingly lubricous. 



2. T. gclati/wsa, Desv. (gelatinous Tetraspora); frond vesicu- 

 lar ovate clavate very gelatinous. Ag. Syst. Alg.p. 138. — Ulva 

 gelatinosa, Vauch. Con)', p. 244. 



Fresh-water stream, Mucruss, Killarney, Mr. Harvey. — Ofthia I have 

 seen no recent specimens. It is described as resembling Frog's spawn, 

 but of a green colour, with sporules arranged in fours. 



49. Enteromorpha. Link. Enteromorpha. 



Frond tubular, hollow, membranaceous, of a green colour 

 and reticulated structure. Fructification; three or four round- 

 ish granules, aggregated in the reticulations. Grev. Alg. Brit, 

 p. \78.t. 18. — Name; wrsgov, tin- entrail, and /aogpfj, a. form or 

 appearance i from the tubular and often more or less inflated 



fronds. 



1. E, Cornucopia, Carm. (Cornucopia-like Enteromorpha); 

 gregarious -mall, fronds tubular at the base, dilated opwards 

 plaited laciniated and torn at the margin. Carm. MSS*- \ 

 tosiphon intestinalis, y. Cornucopia!, Lyngb. Hydroph. Dan.p, t>7. 

 Ay. Syst. Alg. />. 185. 



On Corallines, &c, in rocky poo!-, frequent. C(/j>t<ii>i Carmichael. ©. 

 Spring, Summer. — " Fronds gregarious, about an inch long, funnel- 

 shaped, from a Bhort tubular base, expanding into a plaited laciniated 

 membrane, torn and j;iL. r L'<d at the extremity . Granules in fours, all over 

 the frond. Colour dark-green below, pale above." — "Without pushing the 

 system of varieties to an extravagant length, this plant cannot In- con- 

 sidered as a \;ui(t\ of /•-'. intestinal** ; the characters of the definition 

 mark it as abundantly distinct, and to these characters it is universally 



ant. 1 look upon it, indeed, as a much more- distinct species than 



specimens of which occur now ami then ?erj difficult to 

 unguished from /•.'. intestinaHt.* 1 



2. E. intestindiis, Link, (intestinal Enteromorpha)} fronds 

 elongated broadly linear inflated and sinuated simple (often 



