46 NEW YORK STATE MUSEUM 



Cortinarius ferrugineo-griseus 



PLATE Y, FIG. I-4. PLATE Z, FIG. I-3 



Pilens convex or nearly plane, sometimes with the thin margin 

 upcurved and tlien appearing centrally depressed, hygrophanous, 

 brownish ferruginous when moist, gray or whitish gray when the 

 moisture has escaped, flesh whitish ; lamellae 4-6 lines broad, mod- 

 erately close, adnexed, appearing free in the dried plant, pale 

 cinnamon or clay color when young, brownish cinnamon when 

 mature; stem equal, abruptly bulbous at the base, solid or stuffed, 

 silky fibrillosc, sometimes colored like but paler than the pileus, 

 sometimes shining, variable in color, whitish below and violet tinted 

 above or entirely violaceous, violaceous within ; spores ellipsoid and 

 commonly uninucleate, 10-12 x 7-8 />-. 



Pileus 3.5-10 cm broad; stem 3.5-8.5 cm long, 6-20 mm thick. 



Under pine trees near Natick swamp, ]\Iass. October. G. E. 

 Morris. 



The growing plant is often covered with pine needles. It be- 

 longs to subgenus Hydrocybe and is closely allied to C or t i n a - 

 rius saturninus Fr., from which it may be separated by its 

 pileus fading to grayish white and by its solid stem often abruptly 

 bulbous. It also differs in its habitat and in its larger spores. 



Pileus convexus vel subplanus, aliquando centro depressus, mar- 

 gine recurvato, hygrophanus, quum humidus ferrugineo-brunneus, 

 quum siccus albido-griseus griseusve, carne albida ; lamellae sub- 

 confertae, adnexae, 8-12 mm latae, in juventute cinnamcmeae vel 

 argillaceae, in maturitate brunneo-cinnamomeae ; stipes aequalis, 

 basi abrupte bulbosus, sericeo-fibrillosus, nitidus, solidus, infra al- 

 bidus, supra violaceus, vel omnino violaceus, aliquando in colore 

 pileo similis sed pallidior, interne albidus vel violaceus ; sporae 

 ellipsoideae, vulgo uninucleatae, 10-12 x 7-8 /•. 



Cortinarius acutoides 



PLATE Z, FIG. 4-8 



Pileus submembranous, conic or subcampanulate, acute or 

 acutely umbonate, hygrophanous, at first pale, chestnut color floc- 

 cose and white margined by the fibrils of the veil, after the escape 

 of the moisture whitish and silky fibrillose ; lamellae narrow, as- 

 cending, adnexed, subdistant, yellowish cinnamon ; stem solid or 

 with a small hollow, white, becoming whitish like the pileus ; spores 

 ellipsoid, 8- -10 x 6-j /a. 



