173 
tute of Scranton, altered and enlarged by the addition of species 
since collected, with the aid of Prof. C. O. Thurston, of the Wyom- 
ing Seminary at Kingston. The typography is excellent, and the 
style of the whole and the paper are all that can be desired. The 
number of additional species reported is not as great, however, as 
_ might have been expected. Of the few rare ones new to Pennsyl- 
vania Pyrus sambucifolia, Cham. and Schlecht., discovered near 
Luzerne by Prof. Thurston, who has kindly sent me a specimen, 
is, perhaps, the most interesting. His description of the spot 
where it was found excludes all suspicion of escape from culture. 
The only thing that mars the value of this beautiful catalogue is 
that no herbarium exists behind it, by which its contents could be 
verified. ; Pe oe ig 
Coccocypselum hirsutum (Bot. Mag. t. 7278). 
Native of Central America and Trinidad. 
Composite, Observations on the—III. Edward L. Greene (Ery- 
thea, i. 53-56). 
Discussion of the characters and relationships of the genera 
Coleosanthus and Kuhnia. 
Cornels or Dogwoods. (Garden, xliii. 152.) Cornus florida is 
figured, and a number of other species mentioned. 
Development of Spermagonia in Caeoma nitens. H. M. Richards. 
(Proc. Amer. Acad.) 
This contribution from the Cryptogamic Laboratory of Har- 
vard University (xix) shows that the spermagonia start “ from an 
outgrowth between and not in the epidermal cells of the host.” 
The pressure induced by the multiplication of fungous cells causes 
a breaking away and final absorption of the adjoining epidermal 
cells and the abnormal increase in size of those surrounding the 
forming spermagonium. A plate adds emphasis to the details of 
the process as described in the paper. By DH. 
Flora of Cumberland, Md. (5 pages, no author given [Howard 
Shriver]; no date given [1892].) 
An alphabetical list of several hundred species collected for the 
Cumberland High School. 
Immigrant Plants in Los Angeles County, California. Anstruther 
Davidson (Erythea, i. 56-61; aepine 
