Eponym of the career achievement award for the American Society of Plant Taxonomists, 4 letters
How undisputed facts are taken, 8 letters
Without questioning or debate, 8 letters
A Free Examination of Darwin's Treatise scientist, 7 letters
Botanist who arranged On the Origin of Species to be published in the States, 7 letters
Botany manual author, 7 letters
Botany manual's namesake author, 7 letters
Harvard University Herbaria founder, 7 letters
Name on the highest award of the American Society of Plant Taxonomists, 7 letters
Noted 19th-century botanist, 7 letters