Punctaria.] ALGJE MELANOSPERME^E. 175 



Hyd. Dan. t. 18. Asperococcus castancus. Carm. in Hook. Br. 

 Fl. v. ii. p. 277. 



Sea-shores, not rare. Kingstown, near Dublin, and on the west 

 coast ; W. H. Harvey. — Asperococcus castaneus proves, as my 

 friend Mis. Griffiths first pointed out to me, to be the young of this 

 species. 



12. Asperococcus. Lamour. Asperococcus. 



Frond simple, tubular, cylindrical or compressed, continuous, 

 membranaceous. Root minutely scutate, naked. Fruct. ; dis- 

 tinct spots of imbedded seeds, mixed with erect, club-shaped 

 filaments. Grev. Hook. — Name ; asper, rough, and kokkos, 

 a seed. 



1. A. Jistulosus, Hook. Fisttdose Asperococcus. Frond cy- 

 lindrical, tapering at each end, here and there slightly con- 

 tracted. Hook. Br. Fl. v. ii. p. 277. E. Bot. t. 642. Grev. 

 Crypt, t. 290. 



Sea-shores, common. 6 — 12 inches long. 



2. A. ? pusillus. Least Asperococcus. Frond rounded, ca- 

 pillary, spuriously articulated, brown. Hook. Br. Fl. v. ii. 

 p. 277. Carm. 31SS. cum, Ic. 



On Chorda Filum. Coast of Cork, Ballycotton ; Miss Ball. — 

 0. Autumn. — The fronds of this diminutive species are so closely 

 aggregated, as to give to a section of the plant on which theyejrow, the 

 appearance of a bottle-brush. They are from 1 — 2 inches long, simple, 

 the thickness of a horse-hair, attenuated at both ends, transversely 

 striated in imitation of joints, and closely beset with pellucid fibres. 

 Carm. MSS. 



3. A. Turneri, Hook. Mr. Turner s Asperococcus. Frond 

 oblong, inflated, obtuse, attenuated at the base into a short 

 stipes, thin and delicately membranaceous, here and there con- 

 tracted. Hook. Br. Fl. v. ii. p. 277. — Ulva Turneri. E. Bot. 

 t. 2570. — A. bullosus, Grev. 



Rare. Bantry bay ; Miss Hutchins. Abundantly thrown up on 

 the Murrough, Wicklovv ; W. H. Harvey. Miss Hutchins" specimens 

 are very fine, the fronds being 2 — 3 inches in diameter. 



13. Punctaria. Grev. Punctaria. 



Frond simple, membranaceous, flat, with a naked scutate root. 

 Fruct. scattered over the whole frond in minute distinct 

 spots, composed of roundish prominent seeds, intermixed 

 with club-shaped filaments. Grev. — Name ; punctum, a dot, 

 from the dotted fructification. 



1. P. plantaginea, Grev. Plantain-leaved Punctaria. Frond 



