CLASSIFICATION OF A.GARH 9 503 



532. Bolbitius tener Berk. 



outlines. L860. 



[llustrationsj [bid, PL 12, Fig. 2. 

 Cooke, III.. PL 691. 

 Fries, [cones, PL L39, Fig. 1. 

 Gillet, Champignons de France, No. 16. 



PILEUS conical, [-1.5 cm. high, finally expanded, obtuse, dull 

 white, apex creamy-yellow, sometimes slightly subviscid, even or 

 scarcely striatulate, glabrous, atomate when dry. FLESB very 

 thin, delicate. GILLS free or nearly so, narrow, close, dissolving 

 quickly and becoming brownish-ochraceous. STEM slender, 6-12 

 cm. hi- more in length, [-2 nun. thick, equal, flaccid, glabrous, hollow. 

 bulbillate at l><is< % pure white. SPORES broadly elliptical, smooth, 

 [3-16x9-10 tnicr., rounded-obtuse, ochraceous. 



Gregarious or scattered. Anion- grass on lawns, parks, ,u r "H 

 links. 



Marquette, Ann Arbor. Ypsilanti, etc July-August. After heavy 

 rains. Rare. 



This plant must not be confused with Galera l<it<ritin which has 

 a larger pileus, a rigid-fragile stem and slightly smaller spores and 

 gills which do not dissolve. This little Roll »it ins seldom appears, ac- 

 cording to my experience, ami only during sultry, rainy weather. 

 It develops overnight ami in early morning stands up on itv slender 

 stem without difficulty, bu1 soon utter the sun strikes it the stems 

 bend over, the -ills dissolve and the cap collapses into sofl masses 

 which cling to the ;ipe\ of the flaccid stem. ( »n clomly days the 

 cap may expand ami persist longer but usually it is seen as shown 

 in Cooke's figure. It is described with salmon-colored gills, bu1 in 

 our plants the gills were brownish-ochraceous. 



533. Bolbitius fragilis Fr. 



Epicrisis, 1836-38. 



Illustrations: Cooke. III.. PI. 720, A. 

 Swanton, Fungi, PI. [0, Fig. 2. 



PILEUS 2-5 cm. broad, conical-expanded, subumbonate, more or 

 less viscid, light yellow, fading, umbo slightly deeper yellow, thin, 

 almost pellucid, glabrous, striate on ih< m<ir<ii)). FLESB mem- 



