NumsBer VI (May 9, 1940) 
The Genus Palmorchis 
By CHARLES SCHWEINFURTH AND Donovan S. 
CORRELL . . . ee ee 109 
Nomenclature of the American Species of Corymb- 
orchis 
By Donovan S. Cornett... . 2... 1221 
Numser VII (June 5, 1940) 
Plantae mexicanae IV: Notes on the History and 
Distribution of Rhodochiton volubile 
By Ricuarp Evans ScHuLTrEs. . . . . . . . 129 
Plantae mexicanae V: Desmonchus chinantlensis 
and its utilization in native Basketry 
By Ricnoarp Evans ScCHULTES. ...... . 184 
Orchid Studies, NIT: 1. Restrepia Humboldt, Bon- 
pland & Kunth,a Consideration of generic Validity 141 
2. Nageliella, a new Name for the orchidaceous 
Genus Hartwegia Lindley. . 2. . . 2... . 144 
3. The Orchid Genera Coelia Lindley and Both- 
riochilus Lemaire. . 2... ee 
4. A new Genus of the Orchidaceae from Central 
America 
By Louis O. Wititams. ....... . . . 148 
A new Variety of Epidendrum from Costa Rica 
By Louis O. WinuiaMs. ........ =. .152 
[ vi ] 
