Mycological Flora of the Rockies 105 



ments in favor of such identity. Gyromitra esculenta is a highly 

 gregarious plant, occurring in early spring and nearly always 

 under pines. Its form, to be sure, varies in different individ- 

 uals and some approach H. infula in surface form and lobing. 

 H. infula, on the other hand, occurs throughout the summer and 

 fall, in coniferous forests of any kind, singly for the most part, 

 or at least few and scattered in a locality. I have found it, 

 without much variation and not at all suggesting the gyrose cap 

 of the other, in conifer forests from the Atlantic to the Pacific. 

 For the sake of comparison, a photograph of Gyromitra escu- 

 lenta, as it grows abundantly under pines in Michigan, is in- 

 eluded. (See Plate XXXII.) 



Helvella lacunosa Afzel. form minor. Infrequent, Tol- 

 land. 



On the ground under conifers. Except for size and a tend- 

 ency for the stem to be slender and taper upwards, it is not 

 sufficiently distinct. Ascospores 15-17 x 10-12 jj.. 



Pezizaceae 



AcETABULA SULCATA (Pers.) F'k'l. Somewhat frequent, Tol- 

 land. 



On moist, sandy, or swampy soil, along streams, etc., under 

 willows, alders, pine and spruce. A very variable plant in size 

 and stem characters, but the ribs scarcely extend into the lower 

 surface of cap. Ascospores 18-23 x 10-13 ij, at maturity. The 

 small forms approach Helvella pezizoides Afz. The minor form 

 of H. lacunosa, mentioned above, had very noticeable ribs ex- 

 tending to the margin of the cap. 



Geopyxis cupularis (L.) Sacc. Infrequent, Tolland. On 

 the ground under conifers. 



Lachnea hirta *(Schum.) Gill. Infrequent, Tolland. On 

 wet humus and moss. 



Lachnea scutellata Gill. Infrequent, Tolland. On rotten 

 wood. Apothecia over a centimeter broad. 



Otidea leporina (Batsch) F'k'l. Infrequent, Tolland. On 

 low ground under conifers. The spores are only 12-13.5 x 7-8 fx, 

 but in other respects, the plants are typical. 



