460 BIOGRAPHICAL SKETCHES. 
spection and determination of type-specimens. To this end 
he made journeys to the continent every year from 1830 to 
1834, visiting nearly all the public and larger private herbaria. 
In the years during which the monograph of Labiate was 
in progress, Mr. Bentham elaborated and published the earlier 
of the papers which have particularly connected his name 
with North American botany. These are, first, the reports 
on some of the new ornamental plants raised in the Horticul- 
tural Society’s Garden from seeds collected in western North 
America by Douglas, under the auspices of that society, by 
which were first made known to botanists and florists so many 
of the characteristic genera and species of Oregon and Cali- 
fornia, now familiar in gardens, Gilias and Nemophilas, Lim- 
nanthes, Phacelias, Brodizas, Calochorti, Eschscholtzias, Col- 
linsias, and the like; then the monograph of Hydrophyllee 
(1834), followed the next year by that on Hosackia, and that 
on the Eriogonece, —all American and chiefly North Ameri- 
can plants, —the first-fruits of a great harvest which even 
now has not wholly been gathered in; the field is so vast, 
though the laborers have not been few. Later, the “ Plante 
Hartwegianz,” an octavo volume begun in 1839, but finished 
in 1857 with the Californian collections; and in 1844, the 
“ Botany of the Voyage of the Sulphur,” in quarto, the first 
part of which relates to Californian botany. The various pa- 
pers upon South American botany are even more numerous ; 
one of them being that in which Heliamphora, of British 
Guiana, a new genus of Pitcher Plants, of the Sarracenia 
family, was established. 
Bentham’s labors upon the great order Leguminose began 
early, with his “ Commentationes de Leguminosarum Generi- 
bus,” published in the Annals of the Vienna Museum, being 
the work of a winter’s holiday (1836-7) passed in that capital 
in the herbarium then directed by Endlicher. This was fol- 
lowed by a series of papers, mostly monographs of genera, 
in Hooker’s “Journal of Botany,” in the “Journal of the 
Linnzean Society,” and elsewhere, by the elaboration of the 
order for the imperial “ Flora Brasiliensis,” and later, by the 
“ Revision of the Genus Cassia,” and that of the suborder 
