120 SECTION HYGROCYBE 



under tree-ferns, Jamaica, Trinidad, and Michigan, September-Janu- 

 ary. 



Material Studied — Jamaica: Murrill 674 (type, from Morce's 

 Gap, 5000 ft. elevation, Dec. 29, 30, and Jan. 2, 1908-09). Michigan: 

 Smith 58287. trinidad: Dennis 50, 160 (as H. earlei). 



Orservations — The microscopic characters given above are based 

 on our study of the type. It should be noted that Murrill erred in his 

 report of spore-measurements. He describes the spores as globose, 5 fx 

 in diameter. We found them to be 8-12 X 4.5-6.5 \x. Dennis had also 

 written on the type sheet that he observed the spores to be 9-12 X 

 5-7 {x. 



Dennis (1953) describes this species from his Trinidad collection, 

 J75. He reports that the pileus becomes finely fibrillose-scurfy, yellow 

 to flame scarlet, the flesh thin, concolor; the spores 9-12 X 5-7 p; the 

 basidia 45 X 8-9 /x, 2- and 4-spored; clamp connections present on the 

 cuticular hyphae. Dennis points out that H. subfiavidus is near H. 

 puniceus Fr. which differs in its viscid pileus. 



54 



Hygrophorus papillatus Dennis 



Kew Bull. 2: 263. 1953 



Illustration: 



Dennis, Kew Bull. 2, fig. 8. 



Pileus 2 cm broad, campanulate, acutely umbonate, luteus, umbo 

 luteus-ochraceous, minutely fibrillose. Context yellow, thin. 



Lamellae arcuate-subdecurrent, luteus, subdistant. 



Stipe luteus, pallid and strigose below, elsewhere glabrous, solid. 



Spores 9-12 X 6-8 fx, ellipsoid, smooth, yellowish in Melzer's rea- 

 gent. Basidia 48-60 X 10-12 /x, 2- and 4-spored. Pleurocystidia and 

 cheilocystidia none. Gill trama more or less parallel, of large cells, 

 30 X 75 X 9-20 /x, globose, ovoid, irregular. Cuticle of more or less 

 erect hyphae, 5-12 fx broad. Clamp connections none. 



Harit, Haritat, and Distrirution — On humus, in woods, Trini- 

 dad. 



Material Studied — trinidad: Dennis 49 (type, from Northern 

 Range ) . 



Orservations — This species is related to H. cantharellus from 

 which it is separated by its mammose umbo. Other differences, if any, 

 may be found after further microscopic studies of fresh material have 

 been made. The description of microscopic characters given above is 

 based on our study of the type. Essentially our description is that of 

 Dennis (1953). 



