Numser IV (September 18, 1936) 
A new Pleurothallis from Costa Rica. 
By Oakes AMES 
A rare Sobralia from Costa Rica. 
By Oakes AMES 
A new Macrostachya from the Carboniferous of 
I linois. 
By Winniam C. Darran 
A rare Epidendrum from Costa Rica. 
By Oakes AMES 
Numper V (October 30, 1936) 
The Peel Method in Paleobotany. 
By Winiiam C. Darran 
NumBer VI (January 26, 1937) 
The Nomenclatorial Status of Spiranthes sinensis. 
By F. Tracy Husparp 
Nomenclatorial Notes on Costa Riean Orchids. 
By CHARLES SCHWEINFURTH . 
Number VII (March 3, 1937) 
New Orchids from Middle America. 
By CHARLES SCHWEINFURTH 
Notes on Epidendrum. 
By CuHarbLes SCHWEINFURTH 
Number VILLI (April 12, 1937) 
Peyote and Plants used in the Peyote Ceremony. 
By Ricuarp Evans ScuuLres 
[vi ] 
. 41 
. 69 
