Botany. 251 
BOTANY .! 
PLANCHON’s REVISION OF THE AMPELIDE®.—In the recently 
received Part 2 of the fifth volume of De Candolle’s Monogra- 
hie Phanerogamarum, J. E. Planchon makes a thorough revision 
of the Ampelideæ. Such considerable changes are introduced in the 
ony that it may be well to present a summary of the work 
ere. 
The order is restricted somewhat from the limits assigned it by 
Bentham and Hooker in the Genera Plantarum, by the exclusion 
of Leea with its twenty species or so. The remaining species (386) 
are distributed among ten genera, instead of two, as in the Genera 
Plantarum. It will be remembered that in the latter work the 
authors reduced almost everything to one genus—Vitis. Planchon, 
on the contrary, divides the old genera and constructs several new 
ones. The following abridged conspectus of the genera will serve 
to show their principal characters, and the method pursued in 
differentiating them :— 
Flowers polygamo-diccious; petals 5, cohering; style (short) 
conical; hypogynous glands 5; berries two-celled, 2-4 seeded ; 
climbing shrubs with simple, variously lobed leaves......... . Vitis. 
Flowers polygamo-monecious ; petals 5 (rarely 4), spreading ; 
style short-conical; disk annuliform, erect; berries two-celled, 
2-4 seeded ; climbing shrubs with simple or palmate or palmately 
SMG, AVE seseo a siinon aasi eea erari II. Ampelocissus. 
Flowers polygamo-monecious; petals 4-5, spreading; style 
short; disk annuliform; berries two-celled, 2-4 seeded; shrubs 
with undivided or palmatisect leaves... III. Pterisanthes. 
lowers polygamo-moneecious; petals 5, free, spreading; style 
long, subulate; disk cup-like ; berries two-celled, 2—4 seeded ; 
shrubs, with 5-3 foliate leaves IV. Clematicissus. 
Flowers polygamo-diwcious ; petals 4, expanding; style short; 
stigma 4 lobed; disk hypogynous; berries 2—4 seeded ; shrubs with 
ee leaves Ce ; ftp Sire 
_ ¥ lowers polygamo-moncecious; petals 5, expanding; style short; 
disk 5 lobed, ‘didi to ovary ; ‘cies 2 celled, 3-4 seeded ; shrubs 
a olite leaves VE — 
Flowers hermaphrodite; petals 5, spreading; style subulate, 
thick ; disk chaieus : a 1-2 alal ; dihin s th 
digitate or palmatilobed leaves VII. 2 arthenoci . 
-Flowers hermaphrodite; petals 5 (rarely 4), spreading ; style 
Subulate; disk cup-like, 5 (rarely 4) lobed ; berries 1-2 celled, 1-4 
seeded ; climbing shrubs with leaves from simple to pinnately com- 
pound VIL Ampelopsis 
Pee 
THO eee e boesasssos soosse werseseeeneeees SHeereee 
1 Edited by Prof. Chas. E. Bessey, Lincoln, Neb. 
