Tae Goo; 
CLADRASTIS amurensis. 
Native of Amur-land, 
Nat. Ord. Legum1nos”.—Tribe SopHoRER. 
Genus Craprastis, Rafin; (Benth. et Hook. f. Gen. Pl. vol. i. p. 554.) 
CLADRASTIS amurensis ; arbor parva, partibus novellis sericeo-pubescentibus, foliis 
impari-pinnatis, foliolis 3-4-jugis suboppositis breviter petiolatis ovatis vy. ellip- 
tico-ovatis obtusis, basi interdum cordatis, terminali subsimili, glabris v. sparse 
pilosis, racemis subterminalibus simplicibus v. basi ramosis breviter peduncu- 
latis elongatis densifloris, floribus sub-3-nis pedicellatis albo-virescentibus, 
pedicellis interdum 2-floris bracteas miuutas excedentibus, leguminibus oblongo- 
lanceolatis v. linearibus oligospermis. 
C. amurensis, Benth. in Gen, Pl. vol. i. p. 554. : 
Maacxta amurensis, Rupr. et Maxim. in Bull. Acad. St. Petersb. vol. xv. p. 143, 
t.1,f.2; Maxim. Prim. Fl. Amur, 87,t.5; Morren. Belg. Hortie, 1870, 
301, t.18; Regel Gartenfl. 1874, 152, eum Ie. Xylog. 
It is not to be wondered at that, when the subject of 
. the present plate was first described, it was supposed to be 
a new genus; for at that time the close affinity of the 
Floras of North-Eastern Asia and the Eastern United 
States was not generally recognized, and the affinity of 
Maackia with the hitherto monotypic genus Cladrastris 
(Virgilia lutea of our gardens) could not have been 
anticipated. Nevertheless these two geographically widely 
severed plants are unquestionably congeneric, and not to 
be separated by even a sectional character. It thus adds 
another to the remarkable assemblage of genera found in 
the two countries indicated, but not in the intervening 
territories of Western America, and of which Professor Asa 
Gray has made such good use in tracing the origin and 
-Inigrations of the North American Flora. 
Cladrastis amurensis is a small tree, attaining forty feet 
in height, discovered in Manchuria, where it ranges in the 
basin of the Amur river from lat. 50° 15’ to 52° 20’ N. 
APRIL Ist, 1881. 
