1899] Burt,— Vermont Helvelleae 6I 
a. Spores elongated, arranged side by side in a bundle in the ascus. : « 4-6. 
4. Fructifications clavate, black; spores brown, septate . b . - Geoglossum 
5. Ascigerous portion obovate, laterally compressed, decurrent down opposite sides 
of the stem; spores colorless : : : > : . Spathularia 
6. Ascigerous portion pileate, free margin incurved towards the stem; spores 
colorless . : . : ; : j Vibrissea 
aa. Spores narrowly ellipsoidal, 1—2-seriate in the ascus i . 7and8 
7. Ascigerous portion subcapitate or clavate, decurrent down the stem Mitrula 
8. Ascigerous portion capitate or somewhat discoid, imperfectly hollow, margin 
thick and incurved towards the stem; fructification more or less gelatinous 
Leotia 
MORCHELLA. 
1. MORCHELLA ESCULENTA (L.) Pers. Ascigerous portion ovoid, rather 
obtuse; intersecting systems of ribs often oblique, forming pits rather 
more round than in the following species; spores 8 to an ascus, 22— 
24 X 12-14 p. 
In sandy sheep pastures, Burlington (Z. R. Jones), May 30. 
2. MORCHELLA CONICA Pers. Ascigerous portion cylindric-conical : 
primary ribs longitudinal, secondary ribs transverse, smaller, more like 
folds; pits narrow and more longitudinally elongated than in M. escu- 
lenta ; spores 8 to an ascus, 16-20 x 9-12 p. (Figs. 1-10.) 
In thin grass under spruce trees, college campus, on lawn, and in 
mixed woods under oak tree, Middlebury (Bur. Five collections, all 
on clay soil, May 3-28. 
3. MORCHELLA ANGUSTICEPS Pk. This is separated from M. conica 
by its generally smaller size, more pointed ascigerous portion, compar- 
atively thicker stem, and larger spores, which are 20-25 x 13-17 m 
(Peck), or 27-32 x 16-20 p (Boudier for this species in France). 
A single plant collected at Williamstown, Vt., by L. B. Roberts, 
was sent to Professor Jones. Half of the specimen was sent to Peck 
and by him referred to M. angusticeps Pk.; the other half is in the 
Herbarium of University of Vermont. 
MORCHELLA HYBRIDA Pers. (= M. semilibera DC.) differs from each of the 
above species in having the lower half of its ascigerous portion free from the stem. 
As it is reported from Massachusetts, New York, and Ontario, it may yet be found in 
Vermont. 
GYROMITRA. 
4. GYROMITRA ESCULENTA Pers. Ascigerous portion rounded, gyrose- 
convolute, bay-red ; spores 20-26 x 10-12 p. (Fig. 2.) 
On sandy ground, Burlington ( Jones), April 29. 
GYROMITRA GIGAS (Batsch.) Fr. and G. SPHAEROSPORA Pk., which have been found 
in New York, have the ascigerous portion whitish or ochraceous; and the latter has 
spherical spores, 8-10 u diam. 
HELVELLA. 
5. HELVELLA INFULA Schaeff. Stem stout, nearly even, pallid ; ascige- 
rous portion lobed, deflexed, subcinnamon, somewhat wrinkled at the 
