72 



Mycologia 



Peck. Spores ellipsoid, 6-8 x 4-5 These are considerably 



darker than typical specimens from Europe. Compare Kauff- 

 man's description, except that of the spores, with mine of D. 

 madeodisca. 



Drosophila hydrophila (Bull.) Quel. Ench. Fung. 116. 1886. 

 Reported several times from America. Specimens so named by 

 Peck, collected by Miss White in Maine, are Psilocybe conissans 

 Peck. Kauffman retains the species in Hypholoma, rather than 

 Pilosace, because the gills are " adnate-seceding." See his notes on 

 page 266 of his book, where he refers to the disagreement regard- 

 ing spores. I find them in specimens from Bresadola, who knows 

 Bulliard's plants exceptionally well, to be broadly ellipsoid, blunt 

 at the ends, smooth, pale-purplish-brown under the microscope, 

 4-5 x 3.5 fx — very near those of D. madeodisca. 



Hypholoma populinum Britz. var., Kauffm. Agar. Mich. 1 : 261. 

 1918. Maire finds these subtriangular spores in Drosophila 

 Storea. 



Hypholoma (Fries) Quel. Champ. Jura Vosg. 112. 1872 



Pileus brick-red. 



Pileus yellow, often red on the disk. 

 Taste bitter. 

 Taste mild. 



1. H. lateritium. 



2. H. fasciculare. 



3. H. capnoides. 



i. Hypholoma lateritium (Schaeff.) Quel. Champ. Jura Vosg. 



112. 1872 



Agaricus lateritius Schaeff. Fung. Bavar. Ind. 22. 1774- 

 Agaricus sublateritius Fries, Epicr. Myc. 221. 1838. 

 Agaricus perplexus Peck, N. Y. State Cab. 23 : 99. 1872. 



Pileus convex to nearly plane, slightly umbonate at times, gen- 

 erally cespitose, 3-8 cm. broad; surface smooth, dry, glabrous, 

 latericeous to bay; margin cream-colored to ochraceous; context 

 mild or bitterish, white or nearly so, becoming yellow with age; 

 lamellae adnate, somewhat rounded, sometimes slightly decurrent, 

 thin, narrow, crowded, whitish or pale-yellow, becoming greenish, 

 and finally purplish-brown from the ripening of the spores ; spores 

 ellipsoid, smooth, purplish-brown, 7-8 x 4 fx; cystidia few, 36 x 

 12 fx; stipe thick, subequal, firm, stuffed or hollow, glabrous or 

 slightly fibrillose, stramineous above, ochraceous or reddish below, 



