148 The Botanical Gazette. [April, 
were the five hoods with their incurved horns surrounding the 
stigma. No two leaves were alike, but they exhibited the 
variation observable in this species. 
The delicate corollas of Zeucrium Canadense L., the wood 
sage, show their four exserted stamens. The blue flowers of 
Polemonium ceruleum L. are rendered wonderfully perfect 
by the five stamens, with hairy base, and fine 3-lobed style, 
while Euphorbia corollata L., in its singular involucre, con- 
tains the sterile flowers, each consisting of but a single stamen, 
and, in many cases, the fertile flower protrudes with its 
3-forked style, each fork showing under the lens that it is 
cleft at the end. Here again the natural character is shown 
in the fact that the fertile flower is in various degrees of de- 
velopment; in some cases not yet visible, and in others with 
its ovary drooping over the side of the involucre. The lens 
is necessary to detect all this. I would call special attention 
to the inflorescence of Adisma Plantago L., which is wonder- 
fully accurate, andalso to Hordeum jubatum L., a most succes 
ful attempt to copy the long-awned spike of this grass. The 
magnified portions show the structure of the flowers. 
But enough has been said to show the marvellous care and 
accuracy of the artists in all their work. Every plant tells 
the same story of nature closely followed out, and I am gla 
to bear my testimony to the almost magical work of Leopold 
and Rudolsh Blaschka. 
Cambridge, Mass. 
