Bulbochcelc] ALG.t CONFEKVOIDE.E. 349 



erecto-patent with a tew erect ramuli, apices acuminate, articu- 

 lations 3 — 5 times longer than broad. — Conferva Daviesii, Ddlw. 

 Conf. Syn.p. 73. t. F.—E. Bot. t. 2329. 



On marine Algce, Anglesea, Rev . H. Davies. Bantry, Miss Hiitchins. 

 Brighton, Mr. Borrer. — 2 — 4 lines high, elegantly tufted, much but dis- 

 tantly branched ; ramuli few, scattered; articulations slightly contracted 

 at the joints. 



37. C. virgdtidum, Harv. (minute virgate Calithamnion) ; 

 rose-red minute penicillately tufted, branches very straight 

 close long virgate erecto-patent alternate, ramuli from every 

 joint alternate or secund short obtuse, articulations thrice as 

 long as broad. 



On Ceramium ruhrum ■, Devonshire, Mrs. Griffiths. — 2 — 3 lines high, 

 forming small pencil-like tufts, erect, very straight; the lower part nearly 

 simple and naked, the upper closely set with long alternately pinnate 

 or fasciculate branches, beset at each joint with minute, gemmaeform, 

 i — 2-jointed ramuli. Articulations coloured. Capsules minute, ellipti- 

 cal, solitary or clustered. Habit something like that of C. Daviesii, 

 but I trust sufficiently distinguished by the above character. 



38. C. secunddtum, Ag. (secund Cal'ithamnion); rose-red very 

 minute tufted flexuose sparingly branched, ramuli short secund 

 close spreading obtuse, articulations 4 times longer than broad. 

 — Ag. Sp. Alg. v. 2. p. 187. — C. Daviesii, (3. secundatum, 

 Lyngb. Hydroph. Dan. t. 41. 



On the larger Algce, probably common. On Zostera, Appin, Capt. 

 Carmiehacl. On Purphyra laciniata and Alaria esculenta, at Miltown 

 Malbay, W. II. Harvey. — A line or less in height, forming minute tufts, 

 or spreading in continuous velvety patches. Capsules solitary, or tufted, 

 terminal on abbreviated ramuli, sessile, elliptical, dark-hrown. Lvng- 

 bye's figure entirely agrees with our plant, except in the length of the 

 articulations. 



39. C. lanugo to sum, Lyngb. (downy Calithamniori); nearly 

 simple exceedingly minute brownish, ramuli short obtuse secund, 

 articulations thrice as long ;ls broad pellucid in the centre. — 

 Lyngb, Hydroph. Dan. p. 130. t. 41. — Conferva lanuginosa, Ddlw. 

 Conf. t. 45. — Calitham \ion pubescens, Ag. Sp. Alg. r. -2. j>. 187. 



Very common on decaying Alga?, especially Ceramium rvbrum. — This 

 is the most minute and simple of the genus. 



Trihe XVI. CoNFERVEJE. Pin nts (/ret ■//, rer// rarely pink or 



brown. Fructification (except in Bulboch&te) a granular 

 coloured internal moss (called endochrome) which affect* vari- 

 ous forms, — Fresh-water or murine. 



(15. Bn,n<M ii i ri . Ag. Bulbochsete. 



Filaments articulated, branched; each articulation bearing, at 

 its truncated apex, either an elongated, inarticulate, deciduoui 

 seta, or a sessile spherical capsules baae of the iota scutate, 

 amplexicauL — Name ;■ i butb t and x,*mh a brisUt ,• in al- 



lusion to the setaceous ramuli with swollen b a a e a. 



