SI BSECTION HYGROC1 BJ 15 I 



Oct. 5, L949. Other collections of it were made there 00 iug. - L947, 

 and on Oct. 30, L949. Dennis sa\ s it seems quite constant but is too 



close to //. firmus to be regarded as a distinct species. Further, he 



states that in spite of great range in spore size the spores do not fall 

 obviously into two size groups as in typical //. firmUS, and the basidi.i 

 are net obviously dimorphous. 



Notes on type: Spores 7-13.5 X 4.5-7.5 //. ellipsoid, smooth, yel- 

 lowish in Mel/er's reagent. Basidia 38-52 x 9-12 /*, 4-spored. Pleuro- 

 cystidia and cheiloc) stidia none. Gill trama parallel, hvphae 7-18 u 

 broad. Cuticle not differentiated, surface hyphae repent to erect, 

 broad (7-25 fx). Clamp connections none. 



General comments on //. firmus: Not having seen fresh material 

 we are at a disadvantage in evaluating the varieties of this species, but 

 we cannot escape the conclusion that a critical study of the whole 

 complex will show that it should be divided into numerous species. 

 Var. purpureas Dennis is an example 1 of such a possibility. Cytological 

 studies including chromosome counts should be included in such a 

 critical investigation. 



79 



Hygrophorus cantharellus ( Schw. ) Fr. 



Epicr. Myc., p. 329. 1838 



Agaricus cantlwrellus Schw., Schr. Nat. Ges. Leipzig 1: 88. 1822. 

 Hydrocybe cantharellus (Schw.) Murr., Mycologia 3: 196. 1911. 

 Camarophyllus cantharellus (Schw.) Murr., North Amer. Flora 9: 388. 

 1916. 



Illustrations: 

 Fig. 42. 



Fallow, Icones Farlow., pi. 27. 

 Krieger, Mushroom Handbook, fig. 92. 

 Lange, Flora Agar. Dan. 5, fig. 167B (as Hygroci/be) . 

 Peck, N. Y. State Mus. Ann. Rept. 54, pi. 76, figs. 8-20. 



Pileus 1-3.5 cm broad, convex to flattened on the disc when young, 

 becoming broadly convex-umbilicate at maturity or sometimes the 

 disc not depressed, sometimes the margin spreading or recurved and 

 the cap then appearing broadly infundibuliform, color variable, "flame 

 scarlet," "ochraeeous orange," or "ochraceous buff," brighter when 

 young, paler in age, dry, silky at first, then finely scurfy or lacerate- 

 squamulose especiallv around the disc, margin even, scalloped or 

 wavy. Context thin on the disc, thinner at the margin, reddish orange 

 or yellow; odor and taste mild. 



Lamellae decurrent, orange 1 to yellow (usually paler than the 



