Collybia _esculenta_ Jacq., a small species found in pine woods as well as in pastures in the spring, is recorded as edible by a number of authors. In this species the cap is nearly plane, obtuse, and smooth, brownish; gills adnate, whitish; stem very slender, fistulose, equal, tough, smooth, reddish clay color, deeply rooting. APPENDIX. As Chief of the Division of Microscopy, U. S. Department of Agriculture, the author prepared for the World's Columbian Exposition at Chicago a collection of models of edible and poisonous mushrooms, for which a medal and diploma were there awarded. The same collection, which now belongs to the Museum of the Department of Agriculture, was exhibited at the Atlanta Cotton Exposition in 1895, where a diploma was again awarded for it, and has since been exhibited at the exposition of 1897 in Nashville, Tenn. The models composing this collection, about one thousand in number, were made from actual specimens and colored to nature, the same species being generally represented by numerous specimens so as to illustrate the various stages in the life of the plant, habit of growth, etc. The following is a list of the mushrooms represented in this collection, among which there are types of most of the genera in which species recorded as edible occur: Amanita _Caesarea_ Schaeff. "Orange Amanita." Edible. Amanita _rubescens_ Pers. "The Blusher." "Reddish-Brown Amanita." Edible. Amanita _strobiliformis_ Vitt. "Fir-Cone" or "Pine-Cone Amanita." Edible. Amanita _pantherinus_ D. C. "Panther Mushroom." Poisonous. Amanita _phalloides_ Fr. "Poison Amanita." Poisonous. Amanita _muscaria_ Linn. "Fly Amanita." "False Orange." Poisonous. Amanita _verna_ Bull. "Spring Mushroom." "Vernal Amanita." Poisonous. Amanitopsis _vaginata_ Roze. "The _Grizette."_ "Sheathed Amanitopsis." Edible. Lepiota _procera_ Scop. "Parasol Mushroom." "Tall Lepiota." Edible. Lepiota _racodes_ Vitt. "Ragged Lepiota." Edible. Armillaria _mellea_ Fr. "Honey Mushroom." Edible. Tricholoma _terreum_ Schaeff. "The Gray Cap." Edible. Clitocybe _illudens_ Schw. "Giant Clitocybe." Unwholesome. Clitocybe _odora_ Bull. "Odorous Clitocybe." Edible. Clitocybe _laccata_ Scop. Edible. Collybia _fusipes_ Bull. "Spindle-Foot Collybia." Edible. Pleurotus _ostreatus_ Jacq. "Oyster Mushroom." Edible. Pleurotus _ulmarius_ Jacq. "Elm Pleurotus." Edible. Volvaria _bombycina_ Schaeff. "Silky Volvaria." This species has been recorded by some authors as poisonous. Hays, after testing it, speaks well of it, and states that is eaten on the Continent. Volvaria _speciosa_ Fr. Not commended. Pholiota _caperata_ Pers. Edible. Agaricus _campester_. "Field Mushroom." Edible. Agaricus _arvensis_ Schaeff. "Horse Mushroom." Edible. Hypholoma _sublateritium_. "Brick Top." Edible. Hypholoma _Candolliana_. Edible. Coprinus _comatus_ Fr. "Shaggy Mane Mushroom." Edible. Coprinus _atramentarius_. "Inky Coprinus." Edible. Cortinarius _turmalis_ Fr. Edible.