Proceedings of the Ohio State Academy of Science 65 



Fries in Sys. Mycol. 2: 7. 1822 gives this as a subspecies 

 of M. esculenta. Boudier in Histoire et Classification de Dis- 

 comycetes d'Europe gives conica as a distinct species and de- 

 scribes it as having a partially free pileus. It is evident that our 

 plant is the one described by Fries and not the species now often 

 described by Europeans as M. conica. 



-\-Morchella crassipes Pers. Syn. Fung. 621. 1801. 



Solitary or in groups, 16-24 cm. high. Stipe much larger 

 near the base but, constricted just at the base, white or yellowish, 

 very granular, much furrowed, usually somewhat longer than the 

 pileus. Pileus oblong or somewhat conical, the ribs extending 

 in various directions, and quite thick but with thin edges, pits 

 deep, varying in size and shape, yellowish-brown. Hymenium 

 and hypothecium almost colorless. Paraphyses septate, some- 

 times slightly enlarged upward, stout. Asci cylindrical. Spores 

 oval, hyaline, 22 mic. long and 14 mic. wide. 



Growing on the ground in the woods. 



Coll. L. O. Overholts, May 2, 1908. 



-\-M0rcI1ella semilibcra De Cand. Fl. Fr. 2: 212. 1805. 



Solitary or in groups, 10-15 cm. high. Stipe 10-12 cm. long, 

 narrowed at the base, mealy, fragile, very pale yellow. Pileus 

 bell shaped, 2-3 cm. long, except at the apex free from the stipe, 

 pits shallow and radiating from the apex of the pileus, ribs nar- 

 row with few branches. Paraphyses septate, filiform. Asci 

 cylindrical. Spores hyaline, oval, 24 mic. long and 15 mic. wide. 



On the ground in rather shady places in spring. 



Coll. Bruce Fink, W. G. Stover, May 2, 1907. Freda M. 

 Bachman, April 25, 1908. 



Genus IP Helvella L. Gen. PI. 493. 1754. 



Tvpe species, Helvella mitra L. 



Mycelium within the substratum. Ascophore consisting of 

 stipe and pileus, 3-16 cm. high. Pileus irregular, often lobed, 

 margin often adhering in several places to the stipe, fruiting 

 surface above, glabrous, pruinose or villous beneath, waxy-mem- 



