Illesngloia.] ALG/E GLOIOCLADF;E. 385 



1. L. minutissimus, Ag. (minute Leptomitus); filaments slightly 

 branched very minute hyaline, branches scattered forked ob- 

 tuse, joints obsolete, articulations variable Ag. Syst. Alg. 



p. 47. — Conferva minutissima, Dillw. Conf. Suppl. t. F. 



On Conferva, in the se.:, Dillwyn. — I admit this, merely to state my 

 belief that it is nothing more than the li Ji6ri//cc" so often found beset- 

 ting the apices of the filaments of the Polysiphonioe. 



2. L. Idcteus, Ag. (white Leptomitus); " filaments branched 

 clustered in a shapeless gelatinous mass dirty-white, brandies 

 from each dissepiment, articulations very long-." — Ag. Syst. 

 Aly.p. 48.— Conferva lactea, Dillw. Conf. t. 79. 



In ditches and rivulets; growing on stones, wood, &c. Dillayn. 



3. L. clavdtus, Ag. (club-shaped Leptomitus); " filaments sim- 

 ple hyaline, apex clavate." — Ag. Syst. Alg. p. 49. — Vaucheria 

 aquatica, Lyngb. Hydroph. Dan. t. 22. 



On fishes and dead flies, Agard/i. — The habitat of this production 

 proves that it is no Alga. 



Div. III. GLOIOCLADE^. 1 



Plants consisting of numerous globules, or filaments invested with 

 a definite gelatine and forming globose or filiform fronds. 



Tribe XIX. Batrachosperme.s:. 



Plants filiform or globose, composed of articulated, branched fila- 

 ments, invested with gelatine. Fructification, so far as it is known, 

 capsules on the ultimate ramuli. — Marine or in fresh-water. 



85. Mesogloia. Ag. Mesogloia. 



Frond filiform, solid (ve ry rarely tubular); the axia [gelati- 

 nous or somewhat fibrous; the periphery formed of radiating 

 articulated coloured supdichotomous filaments. Fructification; 

 globules of seeds, seated in the dichotomies of the ultimate ram- 

 uli, composing the periphery. — Name; fmfog. (hi middle, and 

 y'/.o/og, viscid, from the gelatinous a\U. 



I . Purple or rose-red. 



1. M. multifida t Ag. (dicholomom MnogloiaU frond diohoto- 



mous elastic, the axils rounded. — Ag. Syst. Alg. j>. MK — ( 7, 

 j'hoKi miilh/ido. Ag. — B6okm Sen/. 



On sheila and stones, near low«watef mark, not rare. Appin, i 

 Carmichael. Rfalbayand Killiney, Ireland, W, II. Harvey* — .1 — 6 inches 

 long, l — - lines in diameter, gelatinoso-cartilaginous, very elastic, 

 sparingly dichotomouSj the axils remarkably rounded j colour a thill 

 puiplisn-brown. 



•_\ M. Hudson!. Ag*. t Hudson* i J /< i ogloia ) ; frond much 

 i My W, ll. Harvey, 



