EE OE ee VTE ee ees 
Oe TE EN FR 
a a ee en 
TABLE OF CONTENTS. 
: PA 
The nodes of grasses (with plates I and II) -  Mintin Asbury Chrysler 
The bogs and bog flora of the Huron river valley 
(with sixteen figures) - Edgar Nelson Transeau 
Nuclear division in Zygnema (with Ebiten Ii ai IV) Mabel L. Merriman 
Effect of certain solids upoch the growth of seedlings in 
water cultures (with four —— E = ‘J. F. Breazeale 
Chemotropism of fungi - - - Harry R. Fulton 
The embryology and development of Riccia fee 
and Riccia crystallina (with plates V-IX) - - Charles E. Lewis 
A morphological study of Sargassum fili pendula. Con: 
tributions from the Hull Botanical Laboratory. 
L 
II (with plates Xand XI) - - - Etoile B. Simons 
Chromosome reduction in the microsporocytes of 
Lilium tigrinum (with plates XII and XIII) - John H. Schaffner 
Cytological studies on the Entomophthoreae. I. The 
morphology and development of iiss a 
plates XIV and XV) - Edgar W. Olive 
Cytological studies on the Pica phtbouee Il. 
Nuclear and cell division of seis ore (witht gay 
XVI Kee Edgar W. Olive 
Biological relations of ae nabe Il. Aor 
tion of water by leaves - V. M. Spalding 
New species of Californian plants (with two ro figures) Alice Eastwood 
New and noteworthy western plants. III. A, D. E. Elmer 
Some littoral spermatophytes of the Naples region - J. Y. Bergen 
New and noteworthy North American me of Tri- 
folium (with twelve figures) —- - Homer Doliver House 
Some studies regarding the biology of site and twigs 
in winter (with eight figures)  - - Karl M. Wiegand 
The life history of Polysiphonia ioc Contribu- 
tions from the Hull Botanical matoeg 
LXXXIII - - Shigeo Yamanouchi 
The structure. and Sevaoplnsli of the bark in the 
Sassafras (with nine figures) - - - Howard Frederick Weiss 
BRIEFER ARTICLES— 
Notes on ak American Grasses. V. Some 
Trinius Panicum types CS - A. S. Hitchcock 
‘ 
GE 
I 
IIo 
373 
425 
