120 
Mycologia 
Hypholoma Candolleanum (Fries) Quel. 
ViOLET-GILLED HyPHOLOMA 
Plate 158. Figure 7. X i 
Pileus thin and fragile, convex to expanded, gregarious or ces- 
pitose, 3-6 cm. broad ; surface smooth or rugose, striate at times, 
glabrous or slightly floccose, hygrophanous, dark-fulvous, fading 
to isabelline on dry days; lamellae adnexed, crowded, narrow, 
pallid to purplish when young, purplish-black with age ; spores 
oblong-ellipsoid, very blunt at each end, smooth, dark-brown in 
mass, pale-purplish-brown under the microscope, copious, 6^7 X 
3-4 /x; stipe slender, equal, hollow, white, smooth, glabrous or 
slightly flocculose, striate at the apex, 3-7 cm. long, 4-6 mm. 
thick; veil white, very slight and delicate, clinging partly to the 
margin and partly to the stipe, soon vanishing. 
This edible species is not uncommon on the ground or on rotten 
wood in deciduous woods in temperate regions, although it is not 
well known in this country. DeCandolle originally assigned to 
it the name Agaricus violaceolaniellatus, on account of the violet 
color of the young lamellae, by which it may be distinguished 
from its very near relative, Hypholoma appendiculatum, described 
and figured in Mycologia for January, 1912. Fries, in 1818, 
changed the name to Agaricus Candolleanus, probably disliking 
the specific name chosen by DeCandolle because of its length. 
The specimens I have seen do not show the violet color in the very 
young lamellae and are not so large as the European plant, but, 
in a difficult group like this one, I suppose some allowances must 
be made. 
New York Botanical Garden. 
