INTRODUCTION TO BOTANY. 
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Mushrooms. 
Stem, Stipes. The round footstalk that supports the 
cap of pileiferous mushrooms. Agaricus. 
Cap, P ileus. An expansion of the stem, usually hemi- 
spherical or conical. Agaricus. 
Volva. A membranaceous envelope surrounding the 
whole mushroom while quite young, or in the egg-state. 
Agaricus. 
Collar, Annulus. A membranaceous envelope covering 
the cap while the plant is young, afterwards ruptured and 
remaining round the stipes like a collar, either fixed. 
Boletus annulatus ; or moveable, Agaricus procerus. 
Curtain, Cortina. A kind of thready collar, or network, 
which, after the rupture of it by the growth of the plant, 
remains attached to the edge of the cap. Agaricus aranfr- 
osus, Agarici cortinarii. 
Hymenium , Memhrana fnictificans. The part of the pi- 
leus that contains the sporae or gongyles. 
Gills, Lamellae , Vence. Thin expansions of the hyme- 
nium, either single, in pairs, or other determined number; 
sometimes distinct, sometimes anastomosing together. 
Agaricus, Merulius, 
Tubes, Tnbi. Tubular expansions of the hymenium. 
Boletus, Poria. 
Capsule, Peridium , Involucrum. A dry, membranaceous 
hollow vessel, filled with sporae or gongyles. Lycoperdon. 
Perithecium. A hard, hollow receptacle, containing a 
gelatinous substance filled with thecae. 
Capellitium. Hairlike fibres, or elateres interwoven 
with sporae into a globular or oval form, and contained in 
a peridium. 
Slime, Latex. A mucilaginous liquid containing the 
sporae floating in it. Phallus, Clathrus. 
Vesicles, Vesicular. Collections of sporae united together. 
Sporidia. • Conceptacles containing sporae. Puccinia. 
Flocci . Tubular threads intermixed with the sporae. 
Cisli. Very small round conceptacles containing sporae, 
borne upon small footstalks. Mucor. 
Cislophori. The footstalks that support the cisti. Mucor. 
Seeds, Sporce , Spondee. The reproductive corpuscles of 
mushrooms. 
vol. r. 
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