"Umbrine" Quotes from Famous Books
 ... sporangia; peridia membranaceous at maturity, more or less evanescent, opening irregularly or by means of a delicate network, which involves at least the upper part of the sporangium; capillitium usually none; spores of some shade of brown, umbrine, ...
— The North American Slime-Moulds • Thomas H. (Thomas Huston) MacBride |
