310 BOTANICAL GAZETTE [OCTOBER 
outline of the morphology, natural history, classification, geographical distri- 
bution, and economic uses of the flowering plants and ferns. The second part, 
to a great extent rewritten, is a dictionary of the classes, cohorts, families, and 
chief genera, alphabetically arranged. ‘The third part, to which much has been 
added, is a glossarial index of English names, economic products, technical 
terms, specific names, etc. Altogether the volume is a most convenient one for 
any botanist or botanical laboratory.—J. M. C. 
Library of John Donnell Smith.—In 1905 JoHN DONNELL SMITH presented 
to the Smithsonian Institution his herbarium, containing over 100,000 mounted 
specimens, and his botanical library, containing about 1600 bound volumes. 
The herbarium has been placed in the U. S. National Museum; but for the 
present the library is to remain in Baltimore. The collection of books is chiefly 
taxonomic, and is especially rich in the literature of the floras of Mexico and 
Central America. This valuable collection has been placed freely at the disposal 
of botanists, and a very complete and handsome author catalogue has been 
issued by the Smithsonian Institution as a special publication,’ in addition to 
the regular edition (Contrib. Nat. Herb. Vol. XII. part 1). This disposition of 
his exceedingly valuable herbarium and library emphasizes not only the generosity 
but also the scientific spirit of the donor.—J. M. C. 
Cryptogamic flora of Brandenburg.’—The third part of the volume oD Algae 
by LemMERMANN has just appeared. It is devoted entirely to the Flagellatae, 
all of the recognized seven “orders” excepting the last (Euglenineae) being 
presented, and that one is begun.—J. M. C 
NOTES FOR STUDENTS 
Paleobotanical notes.—Natuorst has begun the publication of an important 
series of paleobotanical memoirs.9 ‘The first deals with Pseudocycas, # n°" 
genus from the Cenomanian Cretaceous of Greenland. It has gen me 
considered that leaves of the Cycadeae made their appearance first in the bag 
and thus considerably antedated the true Zamieae, which are known earl 
from the Tertiary deposits. The author shows that leaves from Cretaceous 
deposits, which have been described by various authors as belonging t0 ae 
or even to the living Cycas, are in reality not to be included in these wane 
all, since they differ from the existing Cycas in that each leaf pinnule has @ i 
midrib and is attached to the rachis by a broad instead of an attenuated ated 
On account of these divergences, the author sets up a new genus, P 
7 Catalogue of the botanical library of JoHN DoNnNELL SMITH, presented ou 
to the Smithsonian Institution, Compiled by ALICE Cary Arwoop. Special Pt 
tion, Smithsonian Institution, Pp. 94. July 1908. > 
$ Lemmermann, E., Kryptogamenflora der Mark Brandenburg. Band 3 = 
Algen, 305-496. Leipzig: Gebriider Borntraeger. 1908. 
® Kung. Svenska Vetensk. Akad. Handl. 42:no. 5. 19073 
432n0. 3- 1908; 43° 
no. 6. 1908. 
