Toadstools, mushrooms, fungi, edible and poisonous; one thousand American fungi / How to select and cook the edible; how to distinguish and avoid the poisonous, with full botanic descriptions. Toadstool poisons and their treatment, instructions to students, recipes for cooking, etc., etc.

by Charles McIlvaine; Robert K. Macadam

Evanes´cent (evanescen(t-)s, ppr. of evanescere, vanish away), fleeting; vanishing; soon disappearing.

E´ven, of a surface which is quite plane as contrasted e. g. with one which is striate, pitted, etc. Distinguished from smooth. A surface may not be smooth and yet be even.

Ex-, prefix. See “E-.”

Excen´tric (Gr—out of the center), not central; the stems of some mushrooms are always excentric.

Excip´ulum (excipulum, a vessel for receiving liquids, < excipere, take out, receive), outer layer of an apothecium or cup developed as part of the receptacle.

Exo-, prefix signifying “outside.”

Ex´ogen (Gr—outside, + producing), a plant in which the growth of the stem is in successive concentric layers.

Exog´enous, growing by additions on the outside; belonging to or characteristic of the class of exogens; produced on the outside, as the spores of hyphomycetous and many other fungi.

Exoperid´ium (Gr—outside, peridium), outer layer of the peridium.

Ex´ospores (exosporium), spores which are free, not produced within a sporangium, as basidio-spores.