OF ARTS AND SCIENCES. 315 



Expedition under Captain Wilkes, the Phsenogamous portion of which 

 has mainly been elaborated by me, Dr. Seemann kindly communicated 

 to me as full a set as possible of the plants he collected. Having col- 

 lated the portion belonging to the orders which have been elaborated 

 and published by me, I hei'e offer some brief notes upon that portion 

 of Dr. Seeman's collection, — following the order of his list, and men- 

 tioning only those species which suggest some remark. 



No. 4. " Polyalthia Vitiensis, Seem." was not supplied to me ; and, 

 on the other hand. Dr. Seemann does not enumerate my Richella 

 monosperma nor Uvaria amygdalina. 



12. " Affatea violaris, A. Gray," is the var. ^ of this interesting 

 species, a form with still broader leaves. 



23. ^^ Hibiscus Storchii, Seem." appears not to be sufficiently distinct 

 from H. Rosa- Sinensis. 



24. ^^ Paritium purpurascens, Seem." The living plants may fur- 

 nish good characters to distinguish this from P. tiliaceum, but they are 

 not apparent in the dried specimen supplied. 



39. " Grewia MaUococca, Linn, f." The specimen accords with G. 

 persiccsfolia, Gray, Bot. Expl. Exped., which, however, may be only a 

 variety of Forster's species. 



41. ^^ Trichospermum Richii, Seem." = Diclidocarpus Richii, Gray, 

 1. c, Mr. Bentham having shown that the latter belongs to Blume's 

 little-known genus, which was wrongly placed in the Flacourtiacece, 

 and so overlooked. 



45. " Ternstroemiacearum, nov. gen. Seem." There is nothing an- 

 swering to this in the American collection. 



47. " Calophyllum polyantJmm, Wall. ? " = G. spectahile, Bot. Expl. 

 Exped. Our specimen from the Mangsi Islands must be Miquel's G. 

 dasypodum ; and all are perhaps G. laneeolatum, Bl. 



46. "Galysaccion obovale, Miq." To this apparently belongs the 

 foliage which I had referred to Garcinia Mangostana. 



50. " Garcinia (echinocarpa ?) " is in the American collection too 

 imperfect for determination. 



53. " Pittosporum Pickeringii ? " is that species, apparently, although 

 it is in fruit, while the American collection has flowering specimens 

 only, and with much longer peduncles. 



54. "P. Richii ? " (in fruit only) appears to be that species. 



55. "P. Brackenridgei." This is not our plant, but answers to P. 

 Richii in the flowering state. 



