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

Primor´dium (L.—commonly in pl. primordia, the beginnings, < primus, first, + ordiri, begin), first beginning of any structure.

Primrose-Yellow (primulaceo-flavus), a very delicate pale-yellow, of a more creamy tint than sulphur-yellow. (Pale cadmium + white.)

Proc´ess, an outgrowth or projection from a surface.

Procum´bent (procumben(t-)s, ppr. of procumbere, fall forward or prostrate, < pro, forward, + cumbere, cubare, lie), prostrate; unable to support itself, therefore lying on the ground.

Projec´ting, the anterior end jutting out beyond the margin.

Prolif´erous (proles, offspring; fero, to bear), applied to an organ which gives rise to secondary ones of the same kind.

Pro´tean (Gr—the name of a sea-god), exceedingly variable; changeable in form.

Pro´teid, albuminoid.

Proto- (Gr—first), an element in compound words of Greek origin meaning “first” and denoting precedence in time, rank and degree.

Protobasid´ium, basidium divided by transverse septa into four cells, each giving rise to a spore from a laterally inserted sterigma, or a basidium divided longitudinally by septa intersecting each other at right angles into four cells terminating in a long, tubular sterigma.