180 SECTION HYGROCYBE 



Lamellae decurrent, arcuate, white, stained red, medium broad, 

 subdistant. 



Stipe 1.5 cm long, 1 mm thick at base, much enlarged at apex, deep 

 red at the apex, paler than the pileus below, smooth, cylindric. 



Spores 8-13 X 6-9 p, broadly-ellipsoid, smooth, pale yellow in 

 Melzer's reagent. Basidia 33-48 x 8-10 /*, 4-spored, sterigmata 4-5 fx 

 long. Pleurocystidia and cheilocystidia none. Gill trama parallel. 



Habit, Habitat, and Distbibution — In moss on a decayed log, 

 Jamaica, January. 



Matebial Studied — Jamaica: Murrill 811 (type, from Sir John 

 Peak, 6000 feet elevation, Jan. 5, 1909). 



Obsebvations — The microscopic characters given above are based 

 on our study of the type. 



The type is too meager to section; the structure of the cuticle was 

 therefore not observed. A painting accompanies the type. Somewhat 

 related to H. subcaespitosus, it differs in larger spores and colors. 



98 



Hygrophorus troyanus ( Murr. ) Murr. 



Mycologia 4: 332. 1912 



Hydrocybe troyana Murr., Mycologia 3: 198. 1911. 



Pileus 1-1.5 cm broad, 3 mm high, subhemispheric to convex, 

 ferruginous, not viscid, smooth. 



Lamellae decurrent, violaceous, distant, rather broad, two or three 

 times inserted. 



Stipe 4 cm long, 2.5 mm thick, latericious above, paler below, 

 changing to flavous at the base, glabrous, cylindric. 



Spores 7-9(10) X 3.5-5 n, more or less ellipsoid, many constricted 

 much as in H. subminiatus, smooth, pale yellow in Melzer's reagent. 

 Basidia 30-42 X 5-7 /*, 2- and 4-spored. Pleurocystidia and cheilocys- 

 tidia none. Gill trama subparallel, hyphae 7-12 ^ broad, clamp con- 

 nections none. Cuticle poorly differentiated, hyphae repent or more or 

 less erect, hyphae 3-5 fi broad, no gelatinous layer, a cutis. No hypo- 

 dermium. Pileus trama of radial hyphae. Lactifers scattered in the gill 

 trama. Clamp connections rare on the cuticular hyphae. 



Habit, Habitat, and Distbibution — On soil, Jamaica and Trini- 

 dad, September to January. 



Matebial Studied — j amaica ^ Murrill & Harris 1078, 1090 (type, 

 from Troy, Jan. 12-14, 1909). tbinidad: Dennis 74. 



Obsebvations — The description of microscopic characters given 



