The stem is three inches high, tapering downward, furnished at the base with reddish radicels; white, with a reddish tinge; apparently smooth, but under the glass quite scaly; loosely stuffed. The asci are large, 8-spored, the spores being elliptical. The paraphyses are slender and septate.
Figure 417 represents several plants, natural size. The one in the righthand corner is old, with a ragged pileus; the vertical section shows the pithy contents of the stem. The plants are found in cool, moist, and shady ravines from May to August. Edible, but not very good.
Gyromitra. Fr.
Gyromitra is from gyro, to turn; mitra, a hat or bonnet. This genus is so called because the plants look like a hood that is much wrinkled or plaited.
Ascophore stipitate; hymenophore subglobose, inflated and more or less hollow or cavernous, variously gyrose and convolute at the surface, which is everywhere covered with the hymenium; substance fleshy; asci cylindrical, 8-spored; spores uniseriate, elongated, hyaline or nearly so, continuous; paraphyses present. Massee.
Gyromitra esculenta. Fr.
Plate LIV. Figure 418.—Gyromitra esculenta.
Esculenta means edible. This is the largest spore-sac fungus. The original name was Helvella esculenta. It is bay-red, round, wrinkled or convoluted, attached to the stem, irregular, with brain-like convolutions.