Hybridization of maize and teosinte, in mexico and guatemala and the improvement of maize H. G. Wllkes OriginalPaper Pages: 254 - 293
A multiple-entry key system using edge-punched cards to identify cultivars of potato J. P. MossE. Brown OriginalPaper Pages: 294 - 297
Plants of common use in Paraguayan folk medicine for regulating fertility P. ArenasR. Azorero OriginalPaper Pages: 298 - 300
Plants used as means of abortion, contraception, sterilization and ecundation by Paraguayan indigenous people P. ArenasR. Moreno Azorero OriginalPaper Pages: 302 - 306
Cardiotonic glycosides from the latex of naucleopsis mello-barretoi, a dart-poison plant from North-West Brazil Norman G. BissetPeter J. Hylands OriginalPaper Pages: 307 - 311
The avocados, a Synopsis of the genusPersea, subg.Persea Louis O. Williams OriginalPaper Pages: 315 - 320
Tropical Plants with Sweetening Properties: Physiological and Agronomic Problems of Protected Cropping I.Dioscoreophyllum cumminsii R. J. SummerfieldB. H. MostM. Boxall OriginalPaper Pages: 331 - 339
Job’s-tears (coix lacryma-jobi)—a minor food and fodder crop of northeastern India R. K. Arora OriginalPaper Pages: 358 - 366
The origin and early development of straw mushroom cultivation Shu-Ting Chang OriginalPaper Pages: 374 - 376