Mycological Flora of the Rockies 107 



drical, rounded above; paraphyses hyaline, filiform, non-olavate 

 above, 3-4 fx diam.; ascospores 20-25x5.5-6.5 jjl, subfusiform, 

 smooth, minutely granular within or with one central oil-glob- 

 ule; none were seen septate. 



On small cankers at base of dead trunks of Alnus tenuifoUa, 

 along streams, frequent. Whether this acts parasitically could 

 not be determined, but some of the circumstantial evidence ob- 

 tained seemed to indicate that it does. 



Helotium Boudieri Sacc. et Trott. On bark and wood of 

 Alnus tenuifoUa. When fresh, the apothecia are cream-buff, 

 which changes to fulvous-yellow on drying and with age. 



Helotium citrinum (Hedw.) Fr. Common, Tolland. On 

 rotten wood of deciduous trees. 



Helotium sulphuratum (Schum.) Phil. var. Piceae var. nov. 



Gregarious on decaying needles of Picea Engelmanni. Apo- 

 thecia 1-3.5 mm. broad, disk pale-yellowish, glabrous externally, 

 on short, thick, darker stipe; asci cylindrical, about 150 x 12 jx, 

 paraphyses equal, filamentous, straight or frequently somewhat 

 coiled above, projecting above asci; spores hyaline, smooth, 

 continuous, without oil-drop, 10-12 x 5-6 jjl. This probably 

 deserves more than varietal rank. 



Hymenoscypha scutula (Pers.) Phillips, var. Grossulariae, 

 var. nov. 



Apothecia 1-3 mm. broad, slightly tough, externally white 

 and minutely tomentulose, disk when fresh "antimony yellow" 

 (Ridg.), stipe short, 1-2 mm. long, slender, "cinnamon" (Ridg.). 

 Asci 100-110x8-9 fx, subcylindrical, slightly thick-walled not 

 blue with iodine; ascospores 16-19x3-4 fx, hyaline, 1-septate 

 at the last, subfusiform, more acute at one end, paraphyses 

 filamentous, equal throughout in width. 



On dead stems of Grossularia sp. 9500-ft. elevation. There 

 are no definite hairs externally, such as occur in apothecia of 

 Dasychypha. 



Hymenoscypha sublenticulare var. conscriptum Karst. 

 On decaying wood of Salix. Disk dingy pale-ochraceous. 

 Ascospores 14-16 x 4-4.5 (5) {x. 



Hymenoscypha virgultorum Phill. On old wood, probably 



