Mas see. — A Monograph of the Geoglosseae . 275 
the narrow asci, and the small spores. The fungus becomes darker 
when dry, more especially the stem. Specimen from Ellis examined. 
Mitrula rufa, Sacc., Syll. viii, n. 123, 1889. (PI- XII, Figs. 28-30.) 
Gregarious or scattered, entire fungus 3-6 cm. high, dry, varying 
in colour from rufous or dusky brownish olive to dingy yellow, stem 
usually paler than the remainder ; ascigerous portion narrowly elliptical 
or clavate, often more or less laterally compressed and longitudinally 
rugulose, glabrous, 1-2 cm. long, 4-7 mm. broad, not sharply differ- 
entiated from the thinner, minutely squamulose stem. Asci clavate, 
apex narrowed, pore blue with iodine, 1 1 5-1 40 x 10-12 /x; spores 8, 
irregularly 2 -seriate near the apex of the ascus, 1 -seriate below, 
hyaline, smooth, cylindric-fusoid, ends rather acute, usually slightly 
curved, 25-35 x 5-6 /*, at first multiguttulate, finally 5-septate; para- 
physes slender, septate, tip slightly thickened and more or less 
curved. 
Syn. — Geoglossum rufum , Schweinitz, Syn. Fung. Amer. Bor. n. 101 1, 
in Trans. Amer. Phil. Soc. iv, 181, 1834; Cooke, Mycogr. 205, 
fig. 346, 1875. 
Mitrula luiea , Mont., Ann. Sci. Nat. ser. 4, iii, 91, 1855; Cke., 
Mycogr. 103, fig. 179, 1875 ; Sacc., Syll. viii, n. 120, 1889. 
Geoglossum luteum , Peck, 24th Rep. N. Y. State Mus. 94, pi. 3, 
f. 20-24, 1871 j Cke., Mycogr. 8, fig. 12, 1875. 
Geoglossum flavum , Cke., Bull. Buff. Soc. Nat. Sci. March, 1875. 
Leptoglossum luteum, Sacc., Syll. viii, n. 158, 1889. 
Mitrula lutescens , Berk, and Curt., Grev. iii, 149, 1875; Cke., 
Mycogr. 102, f. 178, 1875; Sacc., Syll. viii, n. 121, 1889. 
Geoglossum pistillaris , Berk, and Cooke, Mycogr. 206, fig. 348, 
1876. 
Mitrula pistillaris , Sacc., Syll. viii. n. 122, 1889. 
Exs. — Ellis, N. Amer. Fung. n. 58. 
Hab . — On the ground among damp moss and grass, also in swamps 
among Sphagnum. 
Distr . — United States (Louisiana, Dr. Hale , n. 4825 ; Lower 
Carolina, Ravenel , n. 2880; Newfield, N.Y., Ellis ; Sandlake, N.Y., 
Peck ; N. Jersey, specimen from Herb. Schweinitz), Guiana (. Leprieur , 
n. 1075). 
A well-marked fungus, slightly variable in colour, but very constant 
in all essential features. The amount of scaliness of the stem varies 
U 
