1909] Bartlett, — Exoperidium in Calostoma Ravenelii 197 
land, but only at this one spot had I found the Chaetomorpha; there 
could hardly be a more perfect fulfillment of what seemed an improba- 
ble prophecy. 
MALDEN, MASSACHUSETTS. 
RUPTURE OF THE EXOPERIDIUM IN CALOSTOMA 
RAVENELII. 
Harvey Harris BARTLETT. 
‘THE most interesting find on a recent collecting trip to Falls Church, 
Virginia, in company with Dr. Heinrich Hasselbring, was a colony of 
Calostoma Ravenellii (Berk.) Massee. "Теге were between thirty 
and forty plants, in all stages of development, growing up through 
a clump of moss in moderately damp, chestnut woods. ‘The long 
coralline bases of the fungus were imbedded in loose, sandy soil under- 
neath the moss. Most of the peridia had pushed entirely through the 
moss, but a few had reached maturity under ground. 
The method of rupture of the exoperidium in Calostoma Ravenelii 
seems never to have been satisfactorily described, although the species 
is found not uncommonly near Washington, D. C., and elsewhere. 
'The following quotations from recent treatments of Calostoma (Mitre- 
myces), bear upon this point:— 
*....exoperidium remaining attached to the ochraceous endoperi- 
dium in the form of irregular warts or scales." 
“Although Morgan considers the species [C. Ravenelii] synonymous 
with M. lutescens, it appears to differ in....the peculiar mode of 
rupture of its exoperidium, which remains attached in scale-like 
fragments all over the surface of the endoperidium, the Herbarium 
Curtis specimens agreeing in this respect with those of Berkeley, as 
figured by Massee,....”’ 
(Burnap, Bot. Gaz. xxiii (1897) p. 190.) 
“Professor Beardsley writes me: ‘Mitremyces Ravenelii, as I have 
found it in a dozen stations at Asheville, has no gelatinous coat, but is 
always covered with a scurfy coat which breaks away from the base 
» 
first, the last piece separating like a cap from the apex.’ 
