Delexseria.] AMM INARTICULATE. 285 



cal or hemispherical capsules, sessile or stalked, and containing a 

 round mass of seeds : — the second composed of granules, {mostly ter- 

 nate) scattered or collected into little spots (sori) or lines, and 

 situated either in the general substance of the frond, or in little 

 leaflets or distinct pod-like folinceous processes. More than one 

 kind of fructification is never found upon the same individual. 

 Grev. 



24. Delesseria. Lamour. Delesseria. 



Frond rose-red, flat, membranaceous, with a percurrent mid- 

 rib. Fructification of 2 kinds: — capsules containing a globular 

 mass of seeds, and ternate granules forming definite sori in the 

 frond or in distinct foliaceous leaflets. Grev. Alg. Brit. p. 71. 

 t.\2. — Named in honour of 31. Benjamin Delessert, a distinguished 

 patron of Botany. 



1. D. sanguinea, Lamour. (oak-leaved Delesseria) ; stem cylin- 

 drical branched bearing oblong or ovate sinuated quite entire 

 waved transversely veined leaves, the midrib producing spheri- 

 cal pedunculated capsules or scattered in oblong leafy pro- 

 cesses. Ag. Sp. Alg. v. I. p. 172. Grev. Alg. Brit. p. 72. — 

 Fucus sanguineus, Linn. — Turn. Syn. Fuc. p. 7, Hist. Fuc. 

 t. 36. E. Bot. t. 1041.— |3. latifolia ; leaves cordate lobed and 

 plaited. Carm. 3ISS. 



Sea-shores, frequent. — /3. Appin, Capt. Carmichael. $ . Fructification 

 in Winter and Spring. — An elegant and delicate species, with leaves from 

 4 to 6 or 8 inches length, of a fine rose colour, having deeper coloured 

 veins. The fructification is generally found on the battered stalks and 

 midrib. The var. fi. is a singular and beautiful state of this plant, w ith 

 leaves 4 inches in diameter, and hardly more in length, obtusely lobed 

 and plaited. (Carm.) 



2. D. sinuosa, Lamour. (sinuous-leaved Delesseria); stem 

 cylindrical branched, frond at length pinnated with oblong den- 

 tato-sinuate or pinnatitid transversely veined erenated leave- 

 ciliated at the margins with seed-hearing Leaflets, spluerical cap- 

 Bulea imbedded ID the substance of the frond. — Ag. Sj>. Alg, 

 r. 1. p. 174. — Fucus sinuosus, Gooden. et Woodw. — E. Bot. 

 t. 622. Turn. Syn. Fuc. p. 1, Hist. Fuc. f. 35.— Fucus rubens, 

 Huds. — Stachh. 



Parasitic on the steins of the larger Fuci. $ . I'ructification in Bum- 

 mer and Autumn. — Six to eight inches or more in length. Less delicate 



in texture, and of a much deeper colour than the preceding. Of this 



Capt Carmichael found a rur. at Appin, with the frond* 3j| inches in dia- 



meter. 



:}. F). nhitti, Lamour. (winged Delesseria) t frond linear sob* 



dichotomoui and mud) divided in a -oniew hat pinnatitid manner. 



the tegmenta linear, spluerical senile capeulei ami naked aeedi 



both placed tometi - on the apicet of the branchee, and eome- 



times on oblong leaflet! originating from the midrib. — Ag. Sp. 



