144 EDIBLE PHILIPPINE FUNGI. 



Panaeolus pseudopapilionaceus Copeland. Pileus 1.5 to 3 cm. wide, 

 hemispherical, without umbo, whitish, not zonate, dry, naked, subfleshy; 

 gills narrowly adnate; stipe changing from nearly white to black, 6 to 

 10 cm. high, 1.5 to 3 mm. thick in the middle, thicker toward both ends, 

 white-powdery at the top, firm, with a narrow axial canal; spores 6.5 to 

 8 by 5 to 6 ;^. 



Manila, on manured ground. 



Very like P. papilionaceus Fries, but differing in inequal stipe, less adnate 

 gills, and especially in the shorter spores. 



P. panaiense Copeland. Pileus 7 cm. or less wide, conical, tawny, fleshy, 

 the surface flocculose when dry, like blotting paper when wet; veil fuga- 

 cious; gills deep, adnate, ashy-black; spores elliptical, 7.5 to 9 by 5.5 to 6.5 

 IX, appendiculate; stipe 12 cm. or less high, 1 cm. thick, equal, solid, brittle. 



Capiz, Panay, on horse manure. 



Agaricus (Psalliota) Boltoni Copeland. Pileus 10 to 15 cm. wide, 

 passing from globose through cylindrical and conical to more or less plane, 

 clothed with brown scales which are denser and larger toward the fuscous, 

 fissured, plane or subvimbonate disk, fieshy, the flesh white, well-flavored, 

 almost odorless; gills UTunerous, crowded, free, 6 mm. deep, white when 

 young, ultimately dark brown; spores 8 to 9 by 5 to 6 /x, with short 

 basal appendage; stipe 8 to 15 cm. high, stout, with globose base, becoming 

 hollow with age; annulus fixed, ample, persistent, declined, subentire. 



Davao. A striking species, common in sunny pastures; named for 

 Governor Bolton, of Davao. 



A. (Psalliota) Merrillii Copeland. A large species, sometimes 10 cm. 

 high and wide, almost without taste or odor; pileus naked or scaly, turning 

 from white to brown, shining, subfleshy, truncate or with concave apex 

 when young, sometimes umbonate in the middle of the depression, when 

 old plane, with a horizontal, entire or incised border, 1 to 2 mm. broad, 

 derived from the veil ; gills about 250, crowded, 5 mm. deep, subacute at 

 the margin, salmon-colored when the veil ruptures, finally turning black- 

 brown; spores minute, 6 by 3.5 /x, uninucleate; veil rupturing late; annulus 

 high up, white on both sides, fioccose without, very lacerate, pendent; stipe 

 somewhat contracted toward the top, abruptly enlarged at the base, solid or 

 nearly so, whitish or turning brown outside and inside. 



Manila, terrestrial imder trees. 



This species is near A. platensis Sacc. & Sydow. (A. lepiotoideus Speg.), 

 but differs in its larger size, entire periphery, annulus white on both sides, 

 and abruptly enlarged base. It is very variable in color and scaliness. 

 Named for my colleague, Elmer D. Merrill. 



A. (Psalliota) argyrostectus Copeland. Pileus 3.5 cm. wide, passing 

 from conical to convexo-plane, shiny white, always naked, subfleshy, with 

 unchanging gray flesh without odor, tasting like A. campestris; gills 3 

 mm. deep, free, obtuse at both ends, gray, turning dark; spores 5.5 to 6 

 by 4 to 4.5 /i, without gvittules; stipe 3 to 4 cm. high, 4 to 8 mm. thick, 

 firmly attached to the pileus, terete, scarcely enlarged do^vnward, solid or 

 nearly so; annulus membranous, pendent, early breaking up and disap- 

 pearing. 



