Number VI (February 19, 1935) 
PAGE 
Additions to the Orchid Flora of British Guiana 
By CHarRLES SCHWEINFURTH . . 2... 2... 77 
Corrections. ........... 2... 4. 4 . 92 
Numper VII (March 6, 1935) 
A fourth polymorphic Alliance in Epidendrum 
By Oakes Ames, F. Tracy Huspparp anp 
CHARLES SCHWEINFURTH . . 2... . . . 98 
Nomenclatorial Notes. IT. 
By Cnaries SCHWEINFURTH . . 2... . . O11 
Number VIII (May 23, 1935) 
Nomenclatorial Studies in Malaxis and Spiranthes 
By Oakes AMES AND CHARLES SCHWEINFURTH = 113 
Studies in Stelis. IV. 
By Oakes AMES. .......... . . 184 
Nomenclatorial Notes. III. 
By CHARLES SCHWEINFURTH .. . . . . . . 186 
NumBer LX (June 29, 1935) 
Permian Elements in the Fossil Flora of the Ap- 
palachian Province. I. 'Taeniopteris. 
By Wintiam C. Darran. ........ 187 
NumBer X (October 81, 1935) 
Studies in Stelis. V. 
By Oakes AMFs ............. 149 
[vi] 
