SABLE OF CONTENTS: 
.PAG 
New or little known North American trees. II, - - - Charles S. Sargent 
Eriocaulon decangulare L.; An anatomical study (with five 
figur' - - = : - - . - Theo. Holm 
oe ae studies with reference to the hos ase of 
nfungous spores, - B. M. Duggar 
The psig ecology of Chicago and vicinity; a study 
of th n, development, and classification of ie 
socie ate Contribaton from the Hull Bota 
Laboratory. XXIV (with thirty-five figures), pica Chandler Cowles 73, 
mele plants from Guatemala and other Central 
erican republics. XXII (with plate 1), - - John Donnell Smith 
Some recent vighitiGacieis a and the nomenclatorial — “ 
they represent, - - - - - M. L. Fernald 
New or little known North American trees. III, - - Charles S, Sargent 
The ugied of hydrocyanic acid as upon Srent and other 
ds (with six figures), C. O. Townsend 
The tuber-like rootlets of Cycas revoluta. Contributions from 
the Hull Botanical Pere XXVI we ten “a 
ures), A. C. Life 
The O83 age of the forests of northern Michi- 
study in physiographic ecology. Contribu- 
tions feoid the Hull Botanical amen ¢ XXVII 
(with eighteen figures), - - Harry Nichols Whitford 
Mexican fungi. III. - - - - - - - - ££. W. D. Holway 
Ovule and embryo of Potamogeton natans. Contributions 
m the Hull Botanical ee XXVIII (with 
iad lt and 11, and one figure). G. M, Holferty 
A contribution to - life history and cytology of Erythro- 
nium. eae butions from the Botanical Laboratory, 
Ohio State ty: VII (with plates tv-1x) - John H. Schaffner 
Studies on ahi plants. I (with plate x) esi Hi. M. Halt 
Contributions from the Rocky Mountain Herbarium, II. - Aven Nelson 
Studies on the geotropism of stems. II (with three figures), Edwin B. Copeland 
BRIEFER ARTICLES — 
Nitrates as a ce of nit f hytic fungi Mary H. Smith 
Non-sexual propagation in Cpcata: a etic eee - Carleton £. Preston 
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