Duroia petiolaris Hook.f. . 2... . . . . . XXLIV 
Duroia saccifera (Mart.) Benth. & Hook.f. . XLIII 
Kpidendrum tampense Lindl... . . . . . . LXXII 
Evidence of teosinte introgression and maize X 
teosinte hybridization . . ....... LUXXVI 
Habenaria nivea (Nutt.) Spreng. . . . . . . LXX 
Infrared spectraofamber. ..... XIV-NNVIII 
Lisianthus nigrescens Cham. et Schlechtd. . . . XLI 
Maize of the Nobogame Valley ..... . LXNV 
Map of maize-containing sites in New Mexico LXXIX 
Map of the area of the Colombian Amazon 
inhabited by Witoto Indians . . ... . . LXII 
Map of the Valley of Sibundoy, Colombia . XLVIII 
Martinella obovata (H BK.) Bur. et K. Schum. 
LXXXIII 
Ocotea venenosa Kosterm. et Pinkley . . UX1V, LXV 
Polyradicion Lindenii (Lindl.) Garay . . . LXVIII 
Prehistoric maize from Bat Cave .... .. I-VII 
Prehistoric maize from Tamaulipas VIII-NI, XIII 
Prehistoric teosinte from Tamaulipas... . . XII 
Prehistoric Tripsacum from Tamaulipas... XIII 
Psychotria involucrata Sw... .......XLVI 
[ ix ] 
