A424 Scientific Intelligence. 
Singapore, thus circumnavigating the globe in his search for the objects 
of his favorite study. 
he volume of Smithsonian Contributions to Knowledge (vol. v), of 
which the above formsa part, is filled with natural, historical, and phys- 
iological memoirs. The following relate to botany. A. @. 
lante Fremontiane; or Descriptions of Plants collected by 
Col. J. C. Fremont, in California; by Joun Torrey, F.L .—The 
subjects, ten in number, are each illustrated by a plate. The first sub- 
ject is Spraguea, (S. umbellata,) a remarkable new genus of Portula- 
own and unrivalled botanical artist, 
(the earlier published Sarcobatus of Nees.) The present is a most in- 
teresting as well as showy shrub, being a Bombaceous plant, allied to 
Cheirostemon, the famous Hand-flower of Mexico, itself anomalous in 
the order, like the present genus, from the imbricated calyx and the want 
of acorolla. Its characters scarcely throw any additional light upon the 
affinities of Cheirostemon, which, as the older and best-known genus, 
should have given its name to the division of the order which Dr. Torrey 
proposes for these two genera. Fremontia is perhaps the most re- 
ramosissima,) of uncertain affinity, apparently most approachtng Chry- 
sobalanacee or Rosacea, (the author inclines to the latter,) notwith- 
new Rosaceous genus, probably of the tribe Dryade@; but the fruit is 
unknown. The sixth, Chamebatia foliolosa, is a Dryadeous genus, 10- 
to the order Savifragacee, with which the “ collateral relationship,” a8 
except the convolute estivation of the petals; which is of little moment 
while they are imbricated in Fendlera, and valvate with a slight modifi- 
cation in Deutzia. The eighth subject is Hymenoclea, Torr. and Gray, 
acurious genus of Composite allied to Franseria, of which last also two 
new species are described. The ninth is Amphipappus Fremontii, 2 
ita between Gutierrezia and Solidago, the brief characters of 
