2 



Mycologia 



sensitive to differences in situation, moisture, and substratum. 

 Several of its forms have received specific names. 



Leotia stipitata (Bosc) Schroet. 

 Two-colored Leotia 



Plate 17. Figure 2. X i 



Plants solitary or clustered, viscid-gelatinous, 3-6 cm. or more 

 high ; ascigerous portion 1-2 cm. or more broad, margin incurved 

 toward the stem, even or irregularly nodulose, hymenium deep 

 aeruginous-green, whitish below : stem terete or slightly tapering 

 upward, white or pale-ochroleucous, 2-4 cm. high, 0.5-1 cm. 

 thick, often beset with minute green squamules : asci narrowly 

 clavate-cylindrical, 1 18-150 X 10 /x ; spores 8, hyaline, smooth, 

 becoming 5 or more septate, 16-28 X 5-6 /u-; paraphyses fihform, 

 branched, the apices intensely green when fresh. 



This species occurs in rich humus or soil in woods from Maine 

 to Florida and west to California. Its colors are constant under 

 all conditions, and it does not intergrade with other species. The 

 dark bluish-green cap and pale-yellow or white stem form a very 

 striking contrast and easily distinguish it from the two other 

 species. 



Leotia chlorocephala Schw. 



Green Leotia 



Plate 17. Figure 3. X i 



Plants solitary to densely clustered, subgelatinous, entirely 

 green, 1-5 cm. high; ascigerous portion hemispherical, convex, 

 margin incurved, obtuse, hymenium smooth or furrowed, the 

 margin often lobed or nodulose, pea-green to aeruginous, 2-10 

 mm. wide; stem terete, firm, the middle layer green, surface 

 densely squamose or furfuraceous with green granules, 1-4.5 

 cm. high, 2-4 mm. thick, changing little in color on drying: asci 

 narrowly clavate, 125-150 X 10-12 /x; spores 8, hyaline or faintly 

 greenish, narrowly ellipsoid, becoming about 5-septate, 18-20 X 

 5-6 ju,; paraphyses filiform, branched, the apices green. 



This plant is entirely green and opaque, with furfuraceous 

 stem. The name assigned it by Schweinitz has caused some con- 

 fusion because it applies better to L. stipitata, which is "green- 

 headed." It occurs on sandy soil in rich woods or among mosses 

 in ravines from New Hampshire to Alabama. 



