318 Miscellaneous, 



by Kiitzing for the L. digitatay is inadmissible, as mueiferous canals 

 exist in many other Algse placed by that author in his genus La- 

 minaria. 



The author proposes the following arrangement of the Lami- 

 naria: — 



Laminaria, Lamx. 



Root fibrous and branched. Stem cylindrical or subcompressed, 

 solid or fistular. Frond flat, ribless, entire or palmate. Cryptosto- 

 mata wanting. 



Section I. Dendro'ideee. 



Mueiferous canals anastomosing in the cortical layer of the stem, 

 large and scattered in the substance of the frond. 

 Sp. L. Cloustoniy Edm. (Le Jol.) ; L. pallida, Grev. 



Section II. Saccharince. 



Mueiferous canals wanting in the stem, small and numerous under 

 the epidermis of the frond. 



Sp. L. Jlexicaulis, Le Jol. ; L. Bongardiana, /3. bifurcata, Post. 

 and Rupr. ; L. bifida, Gmel. ; L. Ruprechtiana, Le Jol. ; L. Cha- 

 missoi^ Bory ; L. phyllitis, Stackh. ; L, saccharina, Linn. ; L. lati- 

 folia, Ag. ; L. Lamourouxii, Bory ; L. longicruris, Lapyl. 



Species not seen by the author : — 



Of Section 1. 1 L. Bongardiana, P. & R. ; L. himantophylla, 

 P. & R. 



Of Section II. ? L. caper ata, Lapyl. ; L. tceniata, P. & R. ; L. 

 crassifolia, P. & R. 



Haligenia, Decaisne. 

 Section I. Phyllaria. 

 H. dermatodea, H. triplicata, H. brevipes. 



Section II. Saccorhiza. 

 H. bulbosa, Decaisne. 



Comptes Rendus, Feb. 26, 1855, p. 470. 



Descriptions of two new Species of Humming Birds, from Peru, 

 By John Gould, F.R.S. 



1. SpATHURA CISSIURA. 



General plumage bronzy green ; wings purplish brown ; four outer 

 tail-feathers purplish steel-black ; under surface green, paler on the 

 throat ; thighs thickly plumed and of a reddish buff. 



Total length, 4} inches; bill, f ; wing. If; tail, 2|-. 



Hab. Peru. 



Remark. — Most nearly allied to Spathura Peruana, but differing 

 from that and all the other members of the genus, in having the outer 

 tail-feathers webbed throughout their entire length, and consequently 

 the spathulate tips less conspicuous. 



