TABLE OF CONTENTS 
Respiration of dormant seeds. Contributions ssi 
the Hull Botanical oe 282 eats 
Bente + oss aes Se wha Hope Sherman 
‘Leaves of the Helobieae (with plateI) - - - - Agnes Arber 
Notes on new or rare species of rusts - - - -. W. H. Long 
Peat deposits and their evidence of climatic —. 
(with twelve figures)- - - oo ae A. P. Dachnowski 
Life history of Corallina officinalis var. mediterranea S. Yamanouchi 
Intra-ovarial fruits in Carica Papaya (with six 
figures) - Bi ed ee ee H. F. Bergman . 
Leaves of certain Amaryllids (with eight figures) - Agnes Arber 
A homosporous American Lepidostrobus. Contri- 
butions from the Hull Botanical roseanad 
283 - eae ea ea a - John M. Coulter and 
W.J.G. Land 
Effect of direct current on cells of root tip of Canada 
field pea (with plates II, III, and three figures) Henry F. A. Meier 
Chemistry of after-ripening, germination, and seed- 
ling development of juniper seeds. Contribu- 
tions from the Hull Botanical Laboratory 284 Dean A. Pack 
Leaf-tissue production and water content in a 
mutant race of Phaseolus wilgaris - - - - J. Arthur Harris 
Technique in contrasting mucors (with two figures) Albert F. Blakeslee, 
Donald 
ch, and 
Ki Yue Cartledge 
Germination of aeciospores, eee | and 
teliospores of Puccinia coronata- - - . G. R. Hoerner 
Sexual dimorphism in Cunninghamella (with one 
figure) « = 4 « <> = = = =.» = +> Albert F. Blakesiec, 
J. Lincoln Cartledge, 
and Donald S. Welch 
Notes on willows of sections Pentandrae and oer 
(with four figures) - - - - Carleton R. Baill 
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