But as soon as the plant is picked and we look at the under surface, all suggestion of a Boletus vanishes, unless one looks carefully at the Venation of the surface of the gills and the spaces between them.
"Studies of American Fungi. Mushrooms, Edible, Poisonous, etc."
George Francis Atkinson
The beautiful Venation of the wall of the sporangium is continued upon the surface of the threads of the capillitium.
"The Myxomycetes of the Miami Valley, Ohio"
A. P. Morgan
This process does not dissolve or remove the scales, but merely renders them transparent, so that they do not interfere with the study of the Venation.
"Directions for Collecting and Preserving Insects"
C. V. Riley