312 STUDIES OF AMERICAN FUNGI. 



Cortina, a cobwebby veil. 



Cuticle, the skin-like layer on the outside of the pileus. 



Decurrent, said of the gills when they extend downward on the stem. 



Diffluent, said of the gills when they dissolve into a fluid. 



Dimidiate, halved, said of a sessile pileus semi-circular in form and attached by 

 the plane edge directly to the wood. 



Echinulate, term applied to minute spinous processes, on the spores for example. 



Eccentric, said of a stem when it is attached to some other point than the center 

 of the pileus. 



Fimbriate, in the form of a delicate fringe. 



Fistulose, becoming hollow. 



Floccose, term applied to indicate delicate and soft threads, cottony extensions 

 from the surface of any part of the mushroom. 



Flocculose, minutely floccose. 



Fugacious, disappearing. 



Fuliginous (or fuligineous), dark brown, sooty or smoky. 



Fulvous, tawny, reddish yellow. 



Fusiform, spindle-shaped. 



Fusoid, like a spindle. 



Furfuraceous, with numerous minute scales. 



Gleba, the chambered tissue forming the hymenium (fruiting surface) in the puff- 

 balls and their allies. 



Hygrophanous, appearing to be water soaked. 



Hymenium, the fruiting surface of the mushrooms and other fungi. 



Hymenomycetes, the subdivision of the Basidiomycetes in which the fruiting 

 surface is exposed before the spores are ripe. 



Hymenophore, the portion of the fruit body which bears the hymenium. 



Hypha (pi. hyphae), a single mycelium thread. 



Imbricate, overlapping like the shingles on a roof. 



Involute, folded or rolled inward. 



Lamella (pi. lamella^), the gills of the mushroom. 



Mycelium, the vegetative or growing portion of the mushrooms, and other fungi, 

 made up of several or many threads. 



Ocreate, applied to the volva where it fits the lower part of the stem, as a stock- 

 ing does the leg. 



Pectinate, like the teeth of a comb. 



Peridium, the wall of the puff-balls, etc. 



Pileus (pi. pilei), the cap of the mushroom. 



Plicate, plaited, or folded like a fan. 



Punctate, with minute points. 



Pulverulent, with a minute powdery substance. 



Repand, wavy. 



Resupinate, spread over the matrix, the fruiting surface external and the pileus 

 next the wood. 



Revolute, rolled backward. 



Rugose, wrinkled. 



Rugulose, with minute wrinkles. 



Saprophytic, growing on dead organic matter. 



Sessile, where the pileus is attached directly to the matrix without any stem. 



Sinuate, said of the gilb when they are notched at their junction with the stem. 



