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TABLE, OF CONTENTS. 
Pac 
Binucleate cells in certain Hymenomycetes (with plate 1), - Robert A. Harper I 
On the toxic .properties of some copper compounds, with 
special reference to Bordeaux mixture om seven 
figures), - - Judson F. Clark 26 
Cladochytrium alismatis (with plates cay - - G. P. Clinton 49 
Notes on the gametophytes and seg be of icgaoe dace 
(with plates x—x11), W.C. Coker 89 
New or little-known North American trees. IX, - - Charles S. Sargent 108 
A descriptive list of the plants collected by Dr. F. E. Blais- 
dell at Nome City, Alaska (with ten figures), Alice Eastwood 126, 199, 284 
The rheotropism of roots (with fifteen figures), Frederick C. Newcombe 177, 263, 341 
An embryological study of Limnocharis emarginata iigices : 
piste 1x), - John Galentine Hall 214 
Generic nomenclature, - - - - - - C..LShear 226 
Undescribed plants from Guatemala and other Central 
American Republics. XXIII (with plates x and x1), John Donnell Smith 249 
On the starch of evergreen leaves and its relation to iti! 
thesis during the winter, = - - Kiichit Miyaké 321 
Parthenogenesis in 7halictrum purpurascens. 3 creer 
from the Hull Botanical oe XXXV ee 
* plates x1I—x111), - James B. Overton 363 
Physiological observations on the subterranean organs of 
some Californian Liliaceae (with plate xiv), - A. Rimbach 401 
The parasitism of Botrytis cinerea (with two figures), - - Ralph E. Smith 421 
The development of vegetation in the morainal depressions 
of the vicinity of Woods Hole (with six figures), - Charles H. Shaw 437 - 
A morphological study of the flower and embryo of ee 
ea from the Hull Botanical Laboratory. 
XXVI (with twenty-eight figures), - Jonathan E. Webb 451 
BRIEFER ARTICLES — 
Clues to relationship among heteroecious plant rusts, J.C. Arthur 62 
Rocky Mountain plant studies. I, - - - Leslie N. Goodding 66 
Two instructive seedlings (with eight figures), - - Carleton E. Preston 150 
Some little known plants from Florida and Georgia, M.L. Fernald 154 
The morphology of the pine cone (with plate vim), Charles E. Bessey 157 
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