86 ACOTYLEDONS. — ALGJE. Ceraiiiiuiu. 



Scarcely a quarter of an inch in height, spreading in rather large 

 patches like crimson velvet. The fructification is inikr!Ov>"n, but the 

 habit and place of growth bespeak it a Ceramium. 



**■* Broivnish or orange-coloured. 



7. C. tomentosum, filaments very mucli branched extremely slen- 

 der intricate cnllected into long almost spongy fascicles, 

 branches divaricating, articulations about 4 tinies as long as 

 they are broad, jlg. p. 64. Conjerva tomentosa, Lightf. 

 p. 982. Dil/w. Con/: t. 56. 



Hab. Marine rocks on the vrestern coast, frequent^ generally adhering 



to the larger Fuci, Lightf. 

 Two to four inches long, brown. Agardh has observed long pods with 



seeds like those of C siUculosum . 



8. C, littorale, filaments very slender very much branched col- 

 lected into numerous long fascicles, branches erect acuminate, 

 articulations as long as they are broad, ^g.p.^o. Conferva 

 liltoralis, E. B. ^.2290. ' Dillw. Conf. f.31. 



Hab. Rocks and Fuci, abundant. 



Four to six inches long, soft. Mr. Dillwyn has observed sphferical 



sessile c«psw?es and swelling articulations apparently filled withgra- 



7iules at the extremities of some of the branches. 



9. C. sUiculosum, filaments very slender free, branches alternate 

 subulate erect, articulations as broad as they are long, cap- 

 sules pod-shaped with scattered seeds, yig. p. 65. Conjerva 

 silici/losa, Dillw. t. E. E. B. t. "2319. 



Hab. Upon Fuci on the Moray coast, Mr. Borrer a,nd Hook. 

 Much smaller, slenderer, and paler than the last ; and never collected 

 into fasciculated, dense branches, as is the case in the two last. 



10. C. cirrosnm, branches pinnate, pinnules distichous nearly 

 opposite subhorizontal approximate straight almost pectinate, 

 articulations as long as tiiev are broad, ^'la. p. 67. Conferva 

 pennaia, Dillw. Coif. t.m. E.B. L 2330. 



Hae. Rocks and on Fuci, coast of Moray, James Brodie, of Brodie, 

 Esq. South Queen'sferry and Dunbar, fllr. Borrer and Hook. 

 Firth of Forth, near Kirkcaldy, Mr. Grevillc. 



One to tv.-o inches long, rigid, olive brown, fasciculate, dense. Cap- 

 sules ovate, sessile or pedunculate. 



11. C. scnparivm, filaments very much branched rigid, branches 

 fasciculate erecto-patcnt ultimate ones subulate alternate dis- 

 tichous, articulations about as long as they are broad. Con- 

 ferva scoparia, E. B. t. 1552. Dillw. Covf. t. 52. Lighlf. 



p. 981. 



Hab. Rocks and Fuci, plentiful. 



Two to four inches long, densely fascicled, darkish brown, rigid. Cap- 

 sules at the extrem.ities of the branches, according to Smith. 



12. C. aureum, filaments flexuose collected into a dense soft 

 piilvinatc fine orange-coloured tuft, branches elongate patent 



