PHOTOGRAPHS AND DESCRIPTIONS OF 
CUP-FUNGI— III. PEZIZA DOMICILIANA 
AND PEZIZA REPANDA 
Fred J. Seaver 
(With Plates i88 and 189, Containing 4 Figures) 
The above species of fungi, on account of their superficial re- 
semblance, have been frequently confused. Indeed there might 
be some difference of opinion as to whether the two represent 
different species or only forms of the same species whose differ- 
ences are due entirely to the difference of habitat. 
Pesisa domiciliana was originally described by Cooke from 
specimens found growing on the walls, ceilings, and floors of a 
house which had been partly destroyed by fire. The specific name 
is a very appropriate one, since, from our own observations, the 
species usually occurs about the cellars of houses and in caves. 
The species was first encountered by the writer in Iowa, where 
it was found growing in the basement of one of the college build- 
ings at Iowa Wesleyan University. There it grew on piles of 
damp coal-dust which had been left over from the winter’s supply. 
The plants were described and illustrated in Iowa Discomycetes 
under the name of Pesisa repanda Pers. 
The species was next found in the basement of tbe museum 
building of the New York Botanical Garden where the ground 
was kept moist by the drip from an ice-box. The plants grew 
on sandy or gravelly soil, as indicated by the particles adhering 
to the base of the apothecia. 
On March 10, 1914, the writer received still other specimens 
from Mr. Carl A. Schwarze, of the New Jersey Agricultural Ex- 
periment Station. These plants, which were found growing in 
the sand of a cutting bench in one of the greenhouses, were ac- 
companied by the following description : “ First of all the plants 
were gregarious, had a short but distinct stem, cups concave, 
nearly white and translucent when young, a yellowish-brown 
195 
