Number 6 (June 15, 1973) 
Four New Bruntfelsias from Northwestern South 
America 
By TimorHy PLowMan ......... . 245 
Generic Recognition of Brugmansia 
eo ==) 
By Tom EK. Lockwoop ........ . . . 278 
\ 
NuMBER 7 (June 22, 1973) 
A New Spiranthes from the Grasslands of Central 
North America 
By Cuarues J. SHEVIAK. . . 2 . . . 285 
Studies in American Orchids IX 
By Lesuie A. GaRay ........... 299 
Number 8 (November 30, 19738) 
The Role of ‘Flowers’ in Nahuat!] Culture: 
A Suggested Interpretation 
By R. Gorpon Wasson . . . . . . . . 805 
NumBer 9 (February 28, 1974) 
Typification of Cannabis sativa L. 
By WitiiaAM T. STEARN. ....... . . 825 
Cannabis: An Example of ‘Taxonomic Neglect 
By Ricnarp Evans Scuuures, Wittiam M. 
KLEIN, Timorny PLowMan anv Tom E. 
Lockwoop .............. . 8837 
NuMBER 10 (May 24, 1974) 
On the Systematics of the Monopodial Orchids II 
By Lesuik A. GaRay .......... . 869 
Swartz Flora Indiae Occidentalis. Volume III 
By Lesuirt A. Garay 375 
[vi] 
