156. NOTICES OF BOOKS. 
adopted . De Candolle, which places Monopetale in the centre of 
the series, flanked on either hand by Polypetale and Incomplete, 
which two latter, as remarked above, have many cross affinities, but 
have few affinities of consequence with Monopetale. The cohorts 
may thus be fancifully likened to the parti-coloured beads of a neck- 
lace joined by a clasp, the beads touching at similarly coloured points 
of their surfaces. The position of each bea in the n ecklace 1 is deter- 
ui e of co 8 
which each bead presents indicate its claims to be placed elsewhere” 
in the ia ace—in other words, such colours represent the cross 
affinities which the cohorts display with others remote from the posi- 
tion they occu Hut, 
Handbook of Huby Trees, Shrubs, and Herbaceous Plants, Containing 
Descriptions, Native Countries, &c., of a Selection of the Best Species 
in Cultivation, &c. Based on the French Work of MM. Decatsng 
and Navpin, entitled ‘* Manuel de |’Amateur des "5 shan and in- 
cluding the original woodcuts by Riocreux and Leblanc. By W. B. 
EMSLEY. London: Longmans. 1873. (Pp. xliv., 688. Fig. 264.) 
TH 00 ded for amateurs and gardeners who ha 
cordance with the natural system, in the order usually followed by 
botanisty't In this country, and short diagnoses of the natural families 
” Pyanthia Sisal Gm nat. ae! 
and genera are given. An artificial key to the natural orders is pre- 
fixed (a modification of that in Lindley’s « Vegetable Kingdom ” by 
; the ovule and ovary, are. 
is also giy re 
all —_— and their "BRA trace 8 ee ee 
n addition to the descriptive part, the book contains a short trea- 
tise on practical gardening, with a very brief outline of vegetable | 
physiology prefixed, making up less than 100 pages 
Those who are acquainted with MM. Decaisne and Naudin’s 
extensive work will not need to be told that the book before us is prac- 
