Helen Shedd Sherwin

…and Leafspot on Soybeans in Maryland. Phytopathology 42(6): 342. SOURCES: 1. “Helen S. Yu, Garden Club President” Obituary, The Washington Post, 24 November 1990. Accessed on 23 June 2016. https://www.washingtonpost.com/archive/local/1990/11/24/author-roald-dahl-dies/0a2b6f8b-c4f0-4b42-8fd1-8493bcbd94f1/…

Floras

Floras & Field Guides Published floras have traditionally been the main means of synthesizing information on the species of plants in an area—their habitats, phenology, classification, common names, and practical…