iv CONTENTS 
Sax, Kart. Fertilization in Fritillaria pudica (plates 27-29) - - - 505 
GrirFitus, Davip. Additional species of Opuntia (plate 30) - - 523 
Knupson, Lewis. Cambial activity in certain horticultural ips - 533 
SmitH, PEARL Masry. The ro fctennen as of the aye and 2 iat of 
Dioscorea villosa (plates 31-34) - 
Kunxket, L. O. Further studies of the orange rusts of Rubus in ae 
United States - 
STEWART, RALPH RaieLes: The dec ‘of janet Western: Tibet—I. 
Discussion of the flora - - - 37" 
MACKENZIE, KENNETH KENT. Notes on Cares XI - - 601 
Howe, MarsHatt A. A note on the eas dimorphism of saci 
and tetrasporic plants of Galaxaura obtusa - 621 
STEWART, RALPH RANDLES. The flora of edak, Wester “‘Tibet—II. 
Check list of Ladak plants - - 625 
INDEX TO AMERICAN BOTANICAL LITERATURE, 
113, 161, 201, 277, 335, 393» 435 495» 539, 591, 651 
INDEX TO VOLUME 43. - - . - - - - - - - 659 
Dates of Publication 
No. 1, for January. Pages I- 62. Issued February 15, 1916. 
No. 2, for February. 63-116. March 11, 1916. 
No. 3, for March. 117-168. April 14, 1916. 
No. 4, for April. 169-206. May 20, 1916. 
No. 5, for May. 207-282. June 16, 1916. 
No. 6, for June. 283-342. June 29, 1916. 
No. 7, for July. 343-396. August 14, 1916. 
No. 8, for August. 397-440. August 22, 1916. 
No. 9, for September. 441-504. October 20, 1916. 
No. 10, for October. 505-544. November 7, 1916. 
No. 11, for November. 545-600. November 27, 1916. 
No. 12, for December. 601-676, January 6, 1917. 
Errata 
Page 92, line 2 from bottom, omit ‘‘about half natural size.” 
Page 345, lines 15-22, omit all species of Polamogeton and Triglochin, except 
P. alpinus. 
