192 ILLUSTRATIONS OF THE BOTANY OF [Leguminose. 
equal temperature. Though the genera are numerous, which are common to the equi- 
noctial parts of Asia, Africa, and America, yet a few have only been found in the two 
first, as Cyamopsis, Ormocarpum, Alhagi, Alysicarpus, Cylista, and Dalbergia, while 
others exist only in Asia and America, as Mucuna, Collea, and Canavalia. | 
The genera which have been enumerated as occurring in the Himalayas, are, on the 
contrary, in. general common to these mountains, as well as to Siberia and Europe, the 
Oriental and Mediterranean regions. Caragana, Oxytropis, and Guldenstadtia, exist in 
Siberia and the Himalayas, Colutea in the latter and Europe; while Cicer, found in the 
Oriental region, Arabia, and Egypt, occurs also on the northern face of the Hima- 
layas; but Trifolium, Phaca, Lespedeza, Vicia, Lathyrus, and Orobus, occur in most of 
the above regions, as well as in the Himalayas, and the cool ports of America. 
Some of the species, moreover, are. not to be distinguished from those occurring in 
Europe and the Oriental region, which has been elsewhere shown to send many of its 
plants thus far southwards. Thus we have Ononis procurrens, Trifolium pratense and 
repens, Medicago sativa, and Lathyrus pratensis, in Cashmere; the two last are also 
found in Kunawur, with Medicago lupulina and falcata, Vicia sylvatica, and Cicer soon- 
goricum, and a nearly allied species, C. microphyllum, nob.. In the Himalayas we have 
Ervum tetraspermum, Orobus luteus, and Cytisus flaccidus, closely allied to C. argenteus. 
The numerous species of Astragalus and O.xytropis approximate the flora of the Hima- 
layas and of Kunawur, to that of Siberia and of the Altai Mountains ; and though few 
of the species can be identified with those of Pallas or Ledebour, which I have examined 
in the collections of Mr. Lambert and Professor Lindley, yet there is a great resemblance 
between many of them. A representative even of the North American flora is not 
wanting, forspecimens of Desmodium nudiflorum, collected by myself in the Himalayas, 
are pronounced by Dr. Boott not to differ from those collected by himself in the United 
States of America, while several species of _Lespedeza bear a close resemblance to those: 
from the same country. LL. juncea, or, at least a species referred to and scarcely to be 
distinguished from it, is found in these mountains, as well as in China and Japan. 
The existence of a few genera of a tropical nature has been already indicated at | 
moderate elevations, and in the rainy season. Thus, Crotalaria anthylloides is found 
at Mussooree and Nepal, in the Peninsula and Ceylon, Java, and Canton; also 
C. alata, of the section Alate ; to which also belongs a species found on the Andes. 
Smithia ciliata, Parochetus ovalifolia, Cantharospermum paucifolium, and Rhynchosia 
suaveolens, may be enumerated as occurring in these mountains in the rainy season, 
together with Phaseolus angustifolius and scaber, belonging to a genus, of which some 
species travel further north than any other of the tribe Phaseolee. It is probable 
that both the red and white varieties of P. vulearis were introduced into Europe from 
Caubul, Cashmere, or the neighbouring’ countries, as the seeds of both were brought 
me from the latter, and they can only be successfully cultivated in a lower temperature 
than other species of the genus. In addition to these, there are a few shrubby species 
of Indigofera and Desmodium, which extend as high as 6,000 feet. Among these, 
D. tiliefolium, 
