238 SECTION HYGROCYBE 



its obtuse, yellow, glutinous pileus, persistently bright-colored gills and 

 very glutinous stipe. It is closely related to H. psittacinus but differs in 

 color at all stages. 



140 



Hygrophorus subminutulus ( Murr. ) Orton 



Trans. Brit. Mycol. Soc. 43: 176. 1960 



Hydrocybe submimitula Murr., Torrey Bot. Club Bull. 67: 233. 1940. 



Pileus 7-10 mm broad, convex to subexpanded, rarely depressed, 

 gregarious, viscid, glabrous, red, soon fading to yellow but often re- 

 taining the red color in the center, margin even. 



Lamellae arcuate-decurrent, pale yellow, distant, broad, inserted. 



Stipe 1.5-2.5 cm long, 1-2 mm thick, red, not soon fading, viscid, 

 glabrous, tapering downward. 



Spores 5-7 X 2.5-3.5 /a, ellipsoid, smooth, yellowish in Melzer's 

 reagent. Basidia 28-35 X 5-7 fx, 4-spored. Pleurocystidia and cheilo- 

 cystidia none. Gill trama subparallel. Cuticle of gelatinous hyphae 

 which are subparallel radially ( with several free ends ) . Clamp connec- 

 tions few. 



Habit, Habitat, and Distribution — On soil, under hardwoods, 

 Florida, November. Orton (1960) reports it from England. 



Material Studied — Florida: Murrill F18392 (type, from Gaines- 

 ville, Nov. 7, 1938). 



Observations — The description of microscopic characters given 

 above is based on our study of the type. Murrill states that the short 

 stipe and small spores separate it from near relatives. Aside from 

 spore size, there is little by which to distinguish it from H. minutulus 

 Pk. Additional collections are needed to ascertain whether or not it can 

 always be separated from H. minutulus on spore size. Orton (1960) 

 gives a full description of British collections and points out that the 

 stipe-apex nearly always is persistently red, as Murrill ( 1940) observed. 

 Orton gives the spores as 5-7(8) X 2.5-3.5(4) /x. We find those of 

 H. minutulus to be 7.5-9(10.3) X 4-5(6) /x. This difference in width is 

 probably significant. 



141 



Hygrophorus citrinopallidus Sm. & Hes. 



Sydowia 8: 327. 1954 



Pileus 8-12 mm broad, convex, becoming broadly convex to turbi- 



