CONTENTS 
ARTHUR, J. C. New species of Uredineae, III - 
Harper, R. M. Explorations in the coastal — or Georgia ee 
the season of 1902 (with four figures) - 
MuRRILL, W. A. The Be honiccsi's of North America, VI. The 
genus Polyporus - ‘ 
Ropinson, W. J. The spines of Fouquieria 2 (with shirts: ‘ures - 
RicHARDS, H, M. and MacDouGar, D. T. The influence of carbon 
monoxide and other gases upon plants 
BERky, E. W. Additions to the flora of the Matawan fotiseatii (with 
plates 1-5) : 
tercvae 1; Concerning some West American smuts (vith seven- 
teen figures) - 
DANDENO, J. B. The mechanics of s seed- sispersion in Ricinus com- 
munis - 
Howe, M. A. Notes on Bahaman ene (with bins 6) - - - 
ARTHUR, J. C. Taxonomic ee of the spermogonium es 
two figures) - 
HARSHBERGER, J. W. A iplopcumnighic sketch of extreme south- 
_ eastern Pennsylvania (with four figures) - 
CusHMaN, J. A. Desmids from southwestern Colcestic vith plat 7) - 
Britton, N. L. Four new North American birches - 
Ricuwarps, H. M. and MacDouGat, D. T. The influence of saibae 
monoxide and other gases upon plants: a correction - 
Peck, C. H. New species of fungi - - 
Evans, A.W. Hepaticae of Puerto Rico, IV. _Odontolejeunes, en 
lejeunea and Prionolejeunea (with plates 8-12) - - 
Morcan, T. H. Polarity and regeneration in a has a igure - 
NEtson, A. New plants from Wyoming, II 
Warrinace: A. The effect of chemical irritation on the ca tvanet 
of fungi - 
Satmon, E. S. A revision oi some — of Eetropothecium vith 
plates 13 and 14) . 
MourrRIL1L, W. A. The Ehivpatarees of North America, VII. The 
genera Hexagona, Grifola, Romellia, Coltriciaand Coltriciella = - 
Cook, O. F. The nomenclature of the royal palms - 
OsterHouT, G. E. Notes on Colorado plants (with a fi sce . 
GRUENBERG, B. C. and Gigs, W. J. Chemical notes on ‘bastard * 
logwood (with two figures) - - 
eee 
