170 THE AMERICAN NATURALIST. [VoL. XXXVI. 
Four miscellaneous phanerogamous species from Colorado are 
described by Osterhout in the Bulletin of the Torrey Botanical Club 
for November. 
Notes on the vegetation of the Cape Nome region, Alaska, by 
Collier, are included in the account of the Brooks reconnaissance of 
Seward Peninsula, recently published by the United States Geological 
Survey. 
A monograph of the genus Sorbus, by Hedlund, constitutes No. 1 
of Vol. XXXV of the Kongliga Svenska Vetenskaps-Akademiens Hand- 
lingar. 
The volume of Botaniska Notiser for 1901 contains (pp. 33-72, 
83-106, 155—158) a discussion by Hedlund of the forms of Aes 
rubrum in the broad sense. 
Under the name of Pilea heptaphyllus, Dr. Rarmíez describes and 
figures a representative of the Papayacez, in No. 1 of the current 
volume of Anales del Instituto Médico Nacional, of the city of Mexico. 
An article on the preparatory fermentation of cacao, by Preyer, 
published in the Z»openpflanzer for April, is reprinted in transla- 
tion in No. ro of the Boletin del Instituto Fisico-Geografico de Costa 
Rica. 
Various diseases of cacao and sugar cane and bud variation of the 
latter are discussed in No. 3 of the current volume of the West Indian 
Bulletin, of Barbados. 
The chayote, Sechium edule, and its varieties are the subject of 
Bulletin No. 28 of the Division of Botany of the United States 
Department of Agriculture, by Mr. Cook, special agent for tropical 
agriculture. 
“Plant Breeding,” an illustrated essay by Professor Hays of 
Minnesota, is published as Buletin No. 29 of the Division of 
Vegetable Physiology and Pathology of the United States Depart- 
‘ment of Agriculture. 
Economic studies of Rhizophora mangle, Avicennia nitida, and 
Eriodendron occidentalis are published in No. 2 of the current volume 
of Anales del Instituto Médico Nacional, of Mexico, which also con- 
tains an article, by Martinez del I Campa e on plants used in that 
country as dum mor 
: A bot hlet on the he Howe and the manufacture 
dis of rubber from them in Brazil, pte M Me decise br 


