140 



MINNESOTA MUSHROOMS 



Figure 105. A'erpa coxica 



Key to the Species 



1 . Stem ribbed or groo\-ecl 



a. Stem slender, gray to black; cap little wrinkled, dark 



H. laciinosa 



b. Stem stout, white or whitish ; cap much wrinkled, white 



H. .nspa 



2. Stem smooth, elastic //. clastica 



Helvella lacunosa Dark Helvella 



' C ap 2-4 cm. wide. 1-3 cm. talk dark grav to blackish or 



i almost black, with a few crinkles at the center, saddle-shaped, 



;' 3-4-l(il)ed ; stem 3-6 cm. bv 7-15 mm.. gra\' to black, promi- 



j nentlv ribbed and grooved lengtliwise, hollow; spores clear, 



, elliptic, smooth, 16-18 X 9-12|a, The name refers to the 



! gri)nved stem. 



(Jn the ground in woods ; edible. 



Figure 106. 



VeRPA DIC.ITAI.IFOKMIS 



Helvella crispa White Helvella 



C a p 3-6 cm. wide, 2-4 cm. tall, white or \\hitish, much 

 wrinkled, esjieciallv toward the middle, margin more or less 

 torn, irregular, hardlv saddle-shaped; stem 6-S cm, bv 2-3 

 cm., white or whitish, to gravish, deeply ribbed and hollowed, 

 hollow; spores clear, elliptic, smooth, 10-16 > 8-10/j. The 

 name refers to the curled cap. 



(.)n the crround in woods ; edible. 



