CLASSIFICATION OF PLANTS 849 
the Candollean in the union of the —- and polypetalous 
pein of dicotyledons, the orders of which he attempted to 
in @ seri t hi 
arran 
deechoped: A modification of scene system by Dr. Engler = 
erica. 
A system 2 differing , from any other was recently pro- 
posed by Ph. van Tieghem (Jcléments de Botanique, ed. 8, 1898). 
Van — recognizes the primary division of see ed-plants into 
Gymnosperms (or Astigmatee) ak Angiosperms (Stiymatee); but 
in the aati of the latter he lays great stress on the development 
at the growing point of the root, forming three main divisions or 
oe based on this character and the number of the c otyledons. 
Class i. includes monocotyledons as generally understood, without 
the eriiaa which are regarded as dicotyledons ; ; Class ii. contains 
Still more recently the same author, in a paper entitled ‘ L’muf 
des pisniae considéré comme base de leur classification ” (in — 
Va t. xiv ha 
which ve introduces a large number of new terms. The lar, we 
divisions are much the same as in his previous system, but the 
nomen 
r 
vi ifferent lines is a scheme by Hans Hallier, of _ a 
— was quite recently given in the N ew Phytologist for July. In 
physiological, and 
nch 
maniacal as well as characters derived from all the other branches 
of botany. It is a mere outline sketch, co wR except for a 
few incidental remarks, no diagnostic character. The general 
features are the following :—Angiosperms reprdzent a siotophyletio 
The Amentacee are not a types, and allies o 
e 
M yristicacee, Calycanthacea, Monimiacea, Lauracea@), a cohort which 
is derived immediat _ from Bennettitacee or ite extinct Cycadales. 
for @ years, but there has oat perhaps piped botanists a 
facta of disinclination to apply them wholly ‘or in part as the 
basis ystem until more information was toitheoui e «# 
briefly, a is from that point of view that ould criticize 
? Niessen The = ce oS ceed as the second 
a) from 
group of A scen ou 
ipa haces ate the division has not yet el worked out. 
