Idaho, Montana. Wyoming, and California; also West Indies and 

 Europe; April-January. 



Materia] Studied — California: 1.. S. Smith 11 I type of 

 Hydrocybe californica Murr., from Berkeley, fan. 20, L91 i , Florida: 



Murrill F1S299 (type of //. subruber . Singer F2062. d>aho: Smith 



45500. mkhk.w: Hnx.ks 1258, L265; Harding 111: Smith 1111. L422, 

 0036, 6717. 7103, 7139, L5347, L5350, 21059, 21811, 25865, 25866, 

 32402, 32653, 32768, 32770, 36809, 36847, 57298, 57 17S ; Thiers 888 

 979,3306,3331,3446,3515,4018,4177, 1237, 1299. Montana: Kauff- 



man, Flathead National Forest. Jul) 6-8, L928. NEBRASKA: Clements 

 (?) (type of Mycena acutoconica . north Carolina: Coker 3590, 



3757, 3790 (as //. ravenelii B. & C. ; Tbtten 3780 (as //. ravenelii 

 B. & C). Tennessee: Hesler 10798, 14174. 19318, L9821, 22211. 22217. 

 23339; Sharp & Hesler 12819; Smith & Hesler 10005. texas: Thiers 

 1817. Wyoming: Thiers 59. west indies: Dennis. Isle of Rhum, 1951. 

 Observations — This was reported by Kanfhnan and Smith 

 (1933) under the name H. rickenii Maire. and later by Smith and 

 Hesler (1942) as H. langii kaihner. It has also been described under 

 other names (see synonomy). When wet, the stipe may feel some- 

 what viscid, but it lacks a gelatinous pellicle. When faded, specimens 

 of H. cuspidatus are indistinguishable from specimens of H. acutoconi- 

 cus. Unless the red color of the former is preserved in drying, her- 

 barium specimens of the two are also indistinguishable. Singer (1910 

 has referred H. croceus sensu Bres. and H. langii Kiihner to H. per- 

 sistans Britz. as svnonvms. Since we recognize //. persistens as having 

 a viscid stipe, we do not accept Singer's synonymy. 



69 



Hygrophorus acutoconicus var. microsporus, var. nov. 



Pileus 2.5-5 cm lotus, conicus, nonnihU cuspidatus. flavus vel 

 ochraceo-aurantius, viscidus: lamellae adnatae, subflavae, nonnihil 

 latae, confertae; stipes 5-8 longus, .3—5 mm crassus, subflavus, siccus; 

 sporae 7-9(10) x 5-6 /m, ellipsoideae. Specimen ti/picum in Herb. 

 Univ. Tenn.; ledum prope Knoxville. Tenn., Aug. 1L 2.937. L. R. Hes- 

 ler 10798. 



Pilens 2. .5-5 cm broad, conic, more or less cuspidate, "cadmium 

 yellow" to "ochraceous orange," viscid, glabrous, innately streaked, 

 snbrimose, margin even. Context pallid or yellowish; odor and taste 

 mild. 



Lamellae narrowly attached, pale clear yellow, ventricose, moder- 

 ately broad (3-4 mm), close, edges eroded. 



Stipe .5-8 cm long, 3-5 mm thick, yellowish, base whitish, dry, 

 equal, striate, fragile, easily splitting, hollow. 



