Codium.] ALGiE INARTICULATE. 317 



On Ulva Lactuca, Appin, rare. Captain Carmichael. ©. Autumn. — 

 It occurs in stellated tufts, 2 — 3 lines in diameter. Filaments about 2 

 lines in length, straight, equal or a little broader at the point. Granules in 

 double, approximated fasciae, and generally 4- in each. Cann. 



4. B. ? ketevirens, Harv. (bright-green Bangia) ; filaments 

 minute tufted flexuose attenuated to a subobtuse point bright- 

 green, fasciae close composed of innumerable minute granules. 

 Harv. MSS. cum Ic. 



On old fronds of Enteromorpha intestina/is, which grow on precipitous 

 rocks at the extreme verge of high-water mark, Pavington, Miltown 

 Malbay, Ireland, Mr. Harvey. 0. Summer. — " Filaments simple, mi- 

 nute, two or three lines in height, fascicled, many in the same tuft, lu- 

 bricous, bright yellow-green, tapering to a subacute point, flaccid and 

 slightly curved. Fascice rather broad, close, evidently containing granules, 

 but so minute and numerous that it is impossible accurately to examine 

 them. It is conspicuous|on the old dull-coloured fronds of Enteromorpha, 

 by its bright green colour. The genus of the present plant is far from cer- 

 tain in my mind, but I think it more nearly related to Bangia than to 

 any other." Harvey. 



5. B. kzeustris, Cann. (lacustrine Bangia); filaments scatter- 

 ed decumbent branched deep green, the branches divaricated 

 acute, fascia? of ternate globose granules. Cann. MSS. cum 1c. 



On the submerged leaves of aquatic plants, Appin, Captain Carmichael. 

 ©. Summer. — " Filaments not exceeding a line in length, of a deep 

 green colour, scattered, tortuous, creeping, and apparently fixed at or 

 near the centre, attenuated at both ends and divaricatedly branched ; 

 sporidia globular, arranged in transverse series of 3 in the same filament, 

 and 2 in the branches." ('arm. 



Tribe XII. Siphoxk.t:. 



Plants found in the sea. in fresh-water <<r on damp ground, 

 n<.. of an herbaceous green colour. Frond either composed of 

 membranaceous, fiUform, continuous, simple or branched tubes, or 

 formed of a combination of similar tubes, and then presenting a 

 lax spongy h<>'l;i of various forms, crustaceous, globular, cylindri- 

 cal or flat. Fructification} vesicles (coniocystae, Ag.) produced 

 on the outer surfaa of the tub 8, filled with adarh-green granular 



moss. (t'nr. 



51 . (V.MI m. Stachh* Codium. 



Frond spongy, dark-green (crustaceous, globular, cylindrical 

 or flat), composed of an interwoven mass of tubular, conti- 

 nuous filaments. Fructification; opaque vei ttached t<» 



the filaments near the surface of the Gr L Grtv. Alg. 



Brit />. 183. /. M».— Nam.-, xo-zov, the dun or peti of an ani- 

 mal ; from the soft and downy substance. The pellucid, 

 almost horny cuticle <>f these plants, their general appearance 

 ami their smell when burnt, assimilate them to the lowei 

 orders <»f Animals. 



