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TABLE OF CONTENTS. 
Julius von Sachs. A biographical sketch, with portrait (with plate 1), #. oll 
Notes on the Euphorbias of Dr. Edward Palmer’s Durango (Mexico), collection 
of 1896 (illustrated), - Charles F. Millspaugh 
A general review of the nee results of Swedish research into grain rust, 
Jakob Eriksson 
Red yeasts (with plates 1 and 111), 
Katherine E. Golden and Carleton G. Ferris 
Contribution to the life-history of Ranunculus (with plates pias 
hn M. Coulter ~ 
Observations on some west American thermal algze yr ees VIlI-X), 
Josephine E. Tilden 
Society for plant morphology and physiology, - - - - WF. ae 
Undescribed plants from Guatemala and other Central American Republic 
(with plate x11), - - ~ John Dennett ‘Son 
Centrosomes in plants, - - - - - - L. Guignard 
New species and extended ranges of North American in ego aha 
plat B.L, Robi 
On collecting and preparing fleshy fungi for the herbarium (with ue nus 
ard A, Burt 
On some aspects of vegetable pathology and the conditions which influence the 
dissemination of plant diseases, - W, C. Sturgis 
\ 
Upon polyembryony and its morphology in cen vulgaris ee plate xvi), 
: W. F. Ganong 
Flowers and insects. XVIII, - - : Charles Robertson 
Pyrola aphylla: a morphological study twrith He aay - Theo Holm 
Notes on the salt marsh plants of northern Kansas, - - John H. Schaffner 
Some new and other noteworthy plants of the northwest, - /. Mf. Greenman 
The orientation of the plant egg and its ecological significance, 
Conway MacMillan 
A contribution to the life-history of the Pontederiacez (with plates eats 
Wilson R. Smith 
The groups of angiosperms, : - : - - A. Engler 
The vegetation regions of the prairie province Reis piate >. &.4 9 
Roscoe Pound and Frederic E. Clements 
Observations on the nutation of Helianthus annuus, - John H. Schaffner 
On the mode of dissemination and on the reticulations of Ramalina reticulata 
(illustrated), = - - : - George James Peirce 
1898 ] v 
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