50 NEW YORK STATE MUSEUM 



NEW SPECIES AND VARIETIES OF EXTRALIMITAL 



FUNGI 



Agaricus floridanus 



Pileus hemispheric or campanulate, becoming nearly plane 

 rimosely areolate or slightly strigose, becoming glabrous, whitish 

 with a yellow or yellowish center; lamellae at first white, then 

 pink, finally dark brown or blackish ; stem easily separable from 

 the pileus, equal or slightly thickened at the base, solid, becoming 

 fibrous when old, whitish, annulus small ; spores globose or broadly 

 elliptic, 5-6 !J. long, 4-5 /-/ broad, 



Pileus 9-15 cm broad; stem 5-10 cm long, 1.5-3 cm thick. 



Single or subcespitose. Grassy fields of sandy soil, DeFuniak 

 Springs, Florida, March. G, Clyde Fisher. 



The mycelium often binds the particles of sand into a globose 

 mass which adheres to the base of the stem. This gives the stem 

 a bulbous appearance, though it is not strictly bulbous. This 

 species is apparently closely allied to Agaricus campester 

 americanus Speg. a South American species. It may be 

 separated from that variety by its rimosely areolate pileus, its stem 

 easily separating from the pileus, solid and not bulbous, and by its 

 smaller annulus. The spores are the same size in both and smaller 

 than in the common mushroom. In both the lamellae are at 

 first white, 



Pileus hemisphericus campanulatusve, deinde subplanus, rimose 

 areolatus substrigosus, demum glaber, albidus, in centro luteus vel 

 flavidus ; lamellae primo albae, deinde incarnatae, postremo atro- 

 brunneae vel nigricantes ; stipes ex pileo facile separabilis, aequalis 

 vel basi subincrassatus, solidus, in senectute fibrosus, albidus, annu- 

 lus parvus ; sporae globosae vel late ellipsoideae, 5-6 x .4-5 ij-. 



Boletus gertrudiae 



Pileus fleshy, broadly convex, glabrous, soft, dry or nearly so, 

 orange yellow or brownish yellow, rarely bright yellow, flesh white, 

 unchangeable ; tubes long, bright yellow when young, brownish 

 yellow when mature, adnate or but slightly rounded at the stem, 

 the mouths minute ; stem rather long, equal or nearly so, solid, 

 glabrous, yellow above, white below, white within or sometimes 

 more or less yellow within the upper part; spores oblong fusi- 

 form, 15-20 M long, 5-6/^ broad. 



