_Salted Piperites._--Only the caps are taken of the Lactarius piperites. They are placed first in salted scalding water for several minutes. The water is then gently pressed out with a napkin, the mushrooms are placed on sieves and cold water poured over them. They are then placed in layers in a jar, each layer sprinkled with salt, and whole pepper and minced onion scattered over the layer. When the jar is full a thin round board is placed upon the top layer and pressed down with weights, and as the mass gives way mushrooms are added until the jar is compactly filled. The jar is then covered with parchment or otherwise tightly sealed. Eight gallons of mushrooms require from one to one and a half glasses of salt. This makes a good salad when treated with oil. NOTE.--L. piperites is an extremely acrid mushroom when in the raw state, and the Russians do not stew it, but prepare it in the above way, taking the precaution to scald thoroughly with salted water before putting away. The precaution of scalding through several waters is a wise one to use in the preparation of all mushrooms inasmuch as the poisonous principle of most mushrooms is soluble in scalding water. Dilute vinegar is frequently used in the same manner. Vinegar should not be used in metal vessels unless porcelain-lined. LIST OF THE GENERA OF HYMENOMYCETES. The following list of the genera of Hymenomycetes, summarized from Kellerman's Synopsis of Saccardo's Sylloge Fungorum, will be found useful for reference: I.--AGARICACEAE. _Leucosporeae._ (Spores white or slightly tinted yellowish.) GENERA. Amanita Pers. Amanitopsis Roze. Lepiota Fries. Schulzeria Bres. Armillaria Fries. Tricholoma Fries. Clitocybe Fries. Collybia Fries. Mycena Fries. Hiatula Fries. Omphalia Fries. Pleurotus Fries. Hygrophorus Fries. Lactarius Fries. Russula Pers. Cantharellus Adans. Arrhenia Fries. Nyctalis Fries. Stylobates Fries. Marasmius Fries. Heliomyces Lev. Lentinus Fries. Panus Fries. Xerotus Fries. Trogia Fries. Lenzites Fries. Tilotus Kalch. Hymenogramme B. & Mont. Oudemansiella Speg. Pterophyllus Lev. Rachophyllus Berk. Schizophyllum Fries. _Rhodosporae_ (spores pink or salmon color), corresponding to the Hyporhodii of Fries. GENERA. Volvaria Fr. Annularia Schulz. Pluteus Fries. Entoloma Fries. Clitopilus Fries. Leptonia Fries. Nolanea Fries. Eccilia Fries. Claudopus Worth. Smith. _Ochrosporae_ (spores tawny ochraceous, or light rusty tint of brown), corresponding to the Dermini of Fries. GENERA. Pholiota Fries. Locillina Gill. Inocybe Fries. Hebeloma Fries. Flammula Fries. Naucoria Fries. Pluteolus Fries. Galera Fries. Tubaria Worth. Smith. Crepidotus Fries. Cortinarius Fries. Paxillus Fries.