OF ARTS AND SCIENCES. 353 



MELANOSPERM.E. 



FUCACE^. 



1. Sakgassdji vulgake, Ag. Wood's Hole, INIass., and south- 

 wanl. — Under this species must be included >S^. Montagnei, Bailey, 

 wliich is certainly nothing more than a variety. 



2. Sargassum affine, Ag. Florida? — S. platycarpum, Mont., 

 recognized by the large size of the glands on the leaves, was incor- 

 rectly distributed by me as .'S'. affiiie witli C. AVright's Cuban Algie. 



3. Sargassum bacciferum, Ag. Gulf Stream, coast of Florida. 



4. Sargassuji hystrix, Ag. — This species, according to Agardh, 

 ranges from Mexico to Newlbundland. I have specimens from Cuba, 

 collected by Mr. Charles Wright ; but it must be regarded as extremely 

 doubtful if the species occurs on the New England coast, particularly 

 north of Cape Cod. 



5. Sargassum filipendula, Ag. Key West, fide Prof. D. C. 

 Eaton. 



*6. Sargassum dentifolium, Ag. Key West, Dr. E. Palmer. — 

 It is not stated whether this plant was floating or attached. The speci- 

 mens collected by Dr. Palmer are more luxuriant than those from 

 the Red Sea, but the serrated midrib seems sufficiently characteristic 

 to warrant us in supposing that the species is the same. In a genus 

 containing so many variable species as Sargassum, it hardly seems as 

 thoush the lenjith of the fructifying ramuli and the size of the air-blad- 

 ders could constitute specific differences. 



7. Turbinaria vulgaris, Ag. Key West. 



8. Phyllospora Menziesii, Ag. San Diego, Cal., and north- 

 ward. — Some forms received from San Diego are quite smooth, and 

 the leaflets are serrated, so that this species approaches nearer to 

 P. comosa of Australia than has generally been supposed. The smooth 

 lower leaflets easily fall off, and make excellent specimens of Lami- 

 naria. Most of the specimens of Laminaria from Southern Cali- 

 fornia are of this nature. — How and when does this plant fruit ? 



Halidrys siliquosa, Lyngb. — Said to have been found at New- 

 foundland. As yet no collector, so far as I know, has seen it on the 

 New England coast. 



9. Halidrys osmundacea, Harv. San Diego, Cal., and north- 

 ward. — Extremely variable. It was stated by Kuprecht, and is now 

 generalh' admitted, that the Cgsfoseira expansa of Agardh is nothing 

 but the lips of this plant. The fruit, in one specimen sent by Mr. 



vol.. X. (N.9. II.) 23 



