332 , Scientific Intelligence. 
a blossom of some prickly cactus, or Cereus, with the legend 
“2 sPINIS FLOS,” alluding doubtless to the blossoming out of the 
work from the midst of thorny difficulties. The second volume 
bears in like manner a branch and cone of the “ big tree,” Sequoia 
gigantea, with the motto, at once triumphant and prophetic, 
“RES TEMPORE MAGNA.” D. ©. E. 
4. The Gymnosporangia or Cedar-apples of the United States ; 
by Professor W. G. Farrow. From the Anniversary Memoirs of 
the Boston Society of Natural History. 4to. pp. 38, pl. 2. Bos- 
ish 
teen years ago, being 
> 
genetic connection, any consideration of the one naturally includes 
recognizes the following species of Gymnosporangium, including 
Podisoma: G@. Eillisii (Berk.), G. clavarieforme DC., G. ma 
cropus » G. fuscum ay ee tg 
G. biseptatum Ellis, G. clavipes, C and P., and @. conicum ve. 
The latter, however, is represented by so few specimens that its 
identity is not above suspicion. What has heretofore appeared in 
American catalogues as G. fuseum is found to differ strikingly 
from the European fusewm, and in the present paper is place 
Vv 
Coming to the question of the genetic connection of the species 
of the two genera, it appears that Oersted has connected G. clava- 
wit 
cultures were made during the springs of 1876, 1877, 1878 and 
1880, the sporidia of the various Gymnosporangia being sow? 0? 
young plants or freshly gathered leaves of the Pome which are 
attacked b stelize, 
ay 
