Botany and Zoology. 67 
III. Borany anp Zooroey. 
1. C, Darwin. The Different Forms of Flowers on Plants of the 
same Species. (London, Murray ; New York, D. Appleton & Co. 
1877.) 12mo, 352 pp.—Circumstances have prevented an earlier 
notice of this volume, Mr, Darwin’s last work upon the fertilization 
ting qualifications. He a 8, moreover, succinct notices of what 
as been done by others in the same field. 
Six of the chapters relate to dimorphous blossoms, such as those 
of Primrose and Houstonia, including also the trimorphic cases, as 
of Lythrum Salicaria and some species of Oxalis. The seventh 
chapter discusses Pol gamous, Dicecious Diccious 
ygam: , and Gyno- 
Plants; the eighth and closing chapter is devoted to Cleisto- 
Flow 
sexual organs themselves (calyx, corolla, ete., being alike in the 
two sorts),—Mr. Darwin adopts Hildebrand’s term of heterustyled. 
rm, a Oo 
and pistils, not in the floral enve opes, and avoids the erroneous 
implication of the term heterostyled, that the style is only or mainly 
‘ ; 
gonous. We were too late to ensure its adoption in this work. A 
fairly good term once in use ought not to be exc anged for a new 
one without very sufficient reason ; and for the present purpose the 
this 
botany as a part of the character, of the genera or species which 
we shall write Flores hermaphroditi, Didi moncecet, dicecei, 
Jyno-dicecei, polygami, as the case may be. ; 
One good set of terms for phytography we owe to Mr. Darwin 
- 
ne g 
and the present book, i. e., that of gyno-dicecious and gyno-monc- 
