iv CONTENTS 
Harper, R. M. Botanical Explorations in Georgia during the 
Summer of 1901 —I. Itinerary (with three figures), 282. 
—— Botanical Explorations in Georgia during the Summer of 
1901 —I]. Noteworthy Species, 319. 
Ho.uick, A. A Fossil Petal and a Fossil Fruit from the Cre- 
taceous (Dakota Group) of Kansas (with seven figures), 
102. 
Howe, M. A., and UNDERWoop, L. M. The Genus Riella, with 
Descriptions of New Species from North America and the 
Canary Islands (with Plates 11 and 12), 214. 
KELLERMAN, K. F. The Effects of Various Chemical Agents 
upon the Starch-converting Power of Taka Diastase, 56. 
Kunze, R. E. The Desert Flora of Phoenix, Arizona, 302. 
Kurrer, E, M. Anatomy and Physiology of Baccharis genistel- 
loides (with eleven figures), 685. 
MacDovcar, D. T. Some Correlations of Leaves (with two fig- 
ures), 503. 
Merz, C. Bromeliaceae Nicaraguenses Novae, 435. 
Morcan, T. H. The Hypothesis of Formative Stuffs, 206. 
Murritt, W. A. The Polyporaceae of North America — II. 
The Genus Pyropolyporus, 109. 
—— The Polyporaceae of North America—III. The Genus 
Fomes, 225. 
—— The Polyporaceae of North America—IV. The Genus 
Elfvingia, 296. 
— The Polyporaceae of North America—V. The Genera 
Cryptoporus, Piptoporus, Scutiger and Porodiscus, 423. 
NasH, G. V. A Preliminary Enumeration of the Grasses of Porto 
Rico, 369. 
A Revision of the Family Fouquieriaceae, 449. 
Osreruout, G. E. New Plants from Colorado (with a figure), 
236. 
Peck, C. H. New Species of Fungi, 95. 
Piper, C. V. A New Species of Waldsteinia from Idaho, 180. 
Four New Species of Grasses from Washington, 233. 
ile 
ye 
