Botanical Museum leaflets Harvard University

Silicification of Wood

Richard F. Leo, Elso S. Barghoorn · 1976 · 160 citations · Full text

Cannabis: an Example of Taxonomic Neglect

Richard Evans Schultes, William M. P. Klein, Timothy Plowman et al. · 1974 · 152 citations · Full text

Life Sciences, Plant Biology, Plant Sciences +8

Nutritional Value of Coca

David J Aulik, James A. Düke, Timothy Plowman · 1975 · 85 citations · Full text

Agriculture, Nutrition, Nutritional Sciences +10

A New Mexican Psychotropic Drug from the Mint Family

R. Gordon Wasson · 1962 · 83 citations · Full text

Medicine, Pharmacology, Psychiatry +5

Mangrove Pollen At the Depositional Site of Oligo-Miocene Amber from Chiapas, Mexico

Jean H. Langenheim, Betty L Hackner, Alexandra Bartlett · 1967 · 81 citations · Full text

Life Sciences, Botany, Ecology +10