CONTENTS 
SmitH, Epna L. The histology of certain orchids ts reference to 
mucilage secretion and crystal formation (plate 1).............. I 
Brown, ELizABETH DorotHy Wuist. Apogamy in ote: pol- 
podioides 
ah eine g Moana as hee Wea threee ee MEM nM ey Ha Pree Says) Savy I 
BRITTON, NATHANIEL Lorp. Studies of West Indian plants—XI.... < 
RYDBERG, ‘PER AxeE: Notes on Rosaceae—X1V- 2c 2 ee 61 
SCHAFFNER, JOHN H. Sex Reversal in the Japanese ina (plate 2).... 73 
OsTERHOUT, GEORGE E. What is Geranium caespitosum James?...... 81 
AnpDREws, F. M. Abnormal elators of derdgves platyphyll (plate aye 85 
Etter, Austin. Polyembryony developed under Goudlitieis 
in certain polypodiaceous ferns (plate 4)...................... 95 
WAtsont rt. cle penis PMeliocarpus.....00 65 oo ec ee ke 8 ks 109 
O’NEAL, CLAUDE E. A study of the embryo sac development and 
OS a phenomena in Oenothera rubrinervis (plates 5 
DOU Tee eras See oes Fk De Pe Ae te I 
Cinco Henry ALLAN. Windsorina, a new genus of Rapataceae iad 
Wise as 5 UR Sata ryt ase Gdulny Rem aremens ip yuh gaa higs, ates ee ta) Wee os I 
SMITH, CHARLES PIPER. Studies in the genus Lupinus—VIII. Lupinus : 
NANUS 5s Ss eRG ie Oe ee eee Ce ee eee ee 159 
Hitcucock, Romyn. Tolypella longicoma in Cayuga Lake, New York 
(plate 8) ois SAR es 2 oa eee ees ee ee are re eee 173 
RYDBERG, PER AxEL. Notes on Fabaceae—I....................-. 177 
SteIL, W. N. The antherozoid of the genus Riccardia.............. 197 
BLAKE, S. F. Two new composites from Florida (plate 9)............ 203 
Hoiiick, ARTHUR. The taxonomic and morphologic status of Ophio- 
glossum Alleni Lesquereux (plate 10-12)....................-. 207 
BRANDEGEE, T. S. A note on gees Steppes so es le aes 215 
OsTerRHOuT, GEO. E. Two new plants from Colorado.............. 217 
LEVINE, MICHAEL. Studies on ap es cancers—IV. The effects of inoc- 
ulating various quantities of different dilutions of Bacterium 
funiefaciens into the tobacco: plant) 63.4205 isco e sce es 231 
OverHoLts, L. O. Diagnoses of American Porias—II (plates 13, 14).. 245 
RypBERG, PER AxEL. Notes on Fabacea Be oie eee eee res 261 
Bears, 5: PF. : New American Connaracene. 4.45 52) t ste ee aie s 273 
YuncKER, T. G. Two new species of Cuscuta from Peru............ 7 
SEIFRIZ, Wn1am. The altitudinal distribution of aes on Mt. Gedeh, 
WOU UACOS RED oo oss «is dy ea odes ve ee se ce ee een 6 283 
SEAVER, FreED J. Studies in tropical Ascomycetes—II. An interesting 
Xylaria from Porto Rico (plate 18)...........---- see eeeneee 307 
Go.psTErn, Bessie. Resting spores of Empusa Muscae (plate 19).... 317 
Pickett, F. L. An ecological study of Cheilanthes gracillima........ 329 
MACKENZIE, Kennetu K. Notes on Carex—XIII..........-.+-++-+- 343 
AsHe, W. W. Further notes on trees and shrubs of the southeastern 
Tbe States ae ee ees es Ge es ye eres ee 359 
