184 
ASCOMYCETES 
Helvetia crispa, “ Common Helvel.” Plate XLVII. 3. 
A sc. i^-2j in. in diam.; margin wavy, adhering to the 
sides of the stem at first, but soon becoming quite free ; 
fragile; glabrous, with a semi-transparent appearance; 
colour variable—entirely whitish, flesh colour, yellowish or 
tawny. S. 2J-4 in., stout, narrowed upwards, with many ribs 
enclosing elongated pits, hollow ; pure white at first, then 
yellowish. Gregarious, autumnal, in hedges and under trees. 
Helvetia lacunosa, “ Mitred Helvel.” Plate XLVIII. g. 
A sc. f-2j in. high, consisting of irregular, drooping, dark- 
grey or blackish-grey lobes, attached to the stem by the 
under surface. S. f-3 in., thick, variously ribbed and pitted, 
pallid. Solitary or gregarious, frequent in woods in spy. 
and ant. Variable, but easily known by the dark-grey, 
irregularly inflated pileus. 
Verpa digitaliformis, “ Thimble-finger.” Plate XLVIII. 2. 
A sc. about f in. high, olivaceous umber, dark at the apex, 
thimble-shaped; closely pressed to the stem like a thimble 
on a finger, but always free from it. 5 . 3 in., £ in. thick or 
more, slightly attenuated downwards, and ornamented with 
minute scales. On banks in shrubberies and hedges in spy. 
Uncommon. 
Leotia lubrica, “ Lizard-tuft.” Plate V. 3. 
A sc. about f in., irregularly hemispherical, somewhat 
gelatinous, wavy, with obtuse margin, yellowish olive-green. 
5 . 1J-2J in., nearly equal or inflated below, hollow at 
maturity; yellowish, covered with minute white granules. 
Terrestrial, in woods in sum. and aut. Gregarious or in 
small clusters. 
Leotia chlorocephala may be easily known by the long, 
often twisted, green stem. 
Mitrophora semilebra, “ Tall Morel.” Plate V. 3. 
A sc. conical, f-i in. high, and almost as much in diam. at 
the base. Free from the stem about half-way up, and 
covered with pronounced, more or less longitudinal ribs, 
