CONTENTS 
BRITTON, NATHANIEL Lorp. Studies of West Indian plants—XII.... 1 
RYDBERG, PER AXEL. Notes on Fabaceae—lIII..................00- 13 
Jounson, ALICE MArig. The mid-styled form of Piaropus paniculatus. 25 
Rice, MABEL AGNEs. Internal sori of Puccinia Sorghi............... 7 
RTHUR, JOSEPH CHARLES. w species of Uredineae—XV.......... I 
BERRY, eebic WILBER. Fossil fruits from the Eastern Andes of 
eon” igen Sapa rer rear rye gifh Perea ney etter oe anaree ae os 61 
BLAKE, Snare Fay. New Polygalas from Colombia................ 83 
SMITH, CHARLES Piper. Studies in the genus Lupinus—X........... I 
SCHAFFNER, JOHN Henry. Expression of the sexual state in Sagittaria 
WR Sopa s oc cg v bushes bean ee ee 103 
Harris, JAMES ARTHUR. The tissue fluids of Cuscuta................ 127 
Howe, MARSHALL AvErRY. Chinese marine algae (plates 1, 2)......... 133 
RYDBERG, PER AXEL. The section Tuberarium of the genus Solanum 
in Mexsro and Central Amerwa. ic. cs ei oo ni eis ee ees 145 
RYDBERG, PER AxeL. The section Tuberarium of the genus Solanum 
in Mexico and Central America: concluding paper............... 167 
FERGUSON, WILLIAM CASHMAN. Contributions to the flora of Long 
TR ee ee ca cn Pa aes CdS vec cee hiwns 177 
PLitT, CHARLES CHRISTIAN, and Pgssin, Louis JEROME. A Study on the 
effect of evaporation and light on the distribution of lichens....... 203 
Dixon, HucH NEvILLte. New species of mosses from the Malay Penin- 
ts te eo. i Re ee eee 5 
GOLDSTEIN, BEssiE. Cytological study of living cells of tobacco plants 
affected with mosaic disease (plate 5). ...... 2... - cece e cee esnccess I 
SHREVE, ForREST. Acro e Sonoran Dicsert 456 oe iste 83 
Munz, Puirie ALEXANDER, and JOHNSTON, Tai Murray. Miscel- 
laneous notes on plants of Southern California................... 2 
SMITH, CHARLES Prrer. Studies in the genus Lupinus—XI. Some new 
Hames Bnd combinationa. 2 ong oo os se wah ek pee ees ces 
BARTRAM, EDWARD BUNTING. Studies in Tortula as represented in 
Southern Arizona (piles 6.9 )o ee a kee ne eve et 
SEIFRIZ, WILLIAM ERNEST. The gregarious flowering of the talipot palm, 
orypha umbraculifera, at Peradeniya, Ceylon (plates 8, 9)....... 341 
Howe, MARSHALL AVERY. otes on algae of Bermuda and the Bahamas 351 
RYDBERG, PER AXEL. Boone senecioid genera—I.................005 369 
SMALL, JoHN KuNKEL. Plant novelties from Florida................ 379 
RYDBERG, PER AXEL me senecioid genera—II................05. 409 
BLAKE, SIpNEY Fay. New South American Verbesinas. .. .....¢<.405 
ge Oe ee ey rs cae eee 443 
ena Fate Crown gall on Bryophyllum calycinum (plate 10).. 449 
Karinc, JoHN Stmpney. A preliminary account of the influence of 
light and temperature on growth and siccedkicsice in Chara fragilis 
(plates 11- 13). ee a te ae es hoes eek eee cee ee 4 
