480 Scientific Intelligence. 
has found its way to, or held its place, in the north of Europe some 
what exceptionally. Both R. a and Ft. Idceus inhabit 
J “oh and Mandchuria, and Maxim regards them as forms 
of a common species. Prof. Abasaltoigs adcipes the now familiar 
idea “ int the Asiatic and North American floras have recipro- 
cally mixed with each other by passing Behring’s Straits and the 
islands which in its neighborhood form a bridge between the two 
continents ;’—which is a partial explanation of a problem that 
has to be treated far m re generally now that we have reason to 
moreover, that the simple-leaved frutescent species (also extra- 
uropean) are the ancestors of those with divided leaves,—but 
this is a speculation of a different character, upon which ae or 
no evidence can be brought to bear. 
3. Gelsemium has dimorphous flowers, the stamens ais “hie 
style Rebtnocally long and sh ~~ This was observed by Mr. 
Canby and myself this spring, but the long-stamened condition is 
the most common. It has already ath noticed by Chapman, but 
it is worth ri attention to, as it was overlooked in Gray’s 
Manual, as well as by A. DeCandolle and Bentham in their mono- 
Loganiacee. The stipules are reduced to gos an 
meter ss points Pa 
“A New 
deste 8), has recently been mated & from the Alleghany tepals 
into Germany by M. Roezl. The baat is perennial and capable 
of endurin ike climate of pene an urther experi 
ments are needed ere the commercial value of the plant can be 
determined.” Gardener's Chroni e in this country are 
old enough to remember a former 2 _was taken to England 
5. Hooker's Icones Plantarum.—Part I, of Vol. I, new go 
just issued, contains plates 1126 to 1150. The figures are chiefly 
of Rubiacee and Composite, and —— the new part of the 
Genera Plantarum. Luina hypole of Lyall’s collection in 
Oregon (and which has lately been detested 3 in California), is ie 
only North American plant in this fasci culus. The name is 
dently an anagram of Jnula. The genus is probably et near 
etradymia, which sometimes has glabrous achenia. m the 
6. treed aie, Hooter, Genera Plantarum.—Part I. of Vol 
IL. of this most important work was published in a and has 
come to hand. It — , including an index, 554 pages: the 
“this cn ve must be deferred. The title ee 
Plantarum is sold in London, by  Tavel eeek & Co., 
