60 AMERICAN FERN JOURNAL 
long lived. They have been found attached to fruiting 
plants of B. virginianum. 
The writer has found prothallia of these plants twice, 
once of B. virginianum which were buried a couple of 
inches in the soil of a cedar forest, and one of B. obliquum, 
in a thicket, an inch or so deep. In both cases they 
were attached to young immature plants and appeared 
as small tubers. Readers of the JourNAL are urged to 
keep careful watch for them especially in the case of 
the species which have been incompletely studied. 
R 
The editors have received from Mr. H. H. Tracy, 
P. O. Box 173, Fullerton, Cal., too late to be printed in 
full in this number of the JournaL, a most attractive 
outline of a week’s camping trip in the Yosemite region 
which he has arranged for members of the Fern Society. 
The party will leave San Francisco immediately at the 
close of the Association meetings on Aug. 7, will go by 
rail and auto to the Mariposa big tree grove and thence 
on horse-back, with guides, to Glacier Point, Sunrise 
Meadows, Tuoloumne Meadows, Lake Tenaya, and 
the head of the Yosemite Falls, descending thence into 
the Yosemite Valley and spending two and a half days 
there. The cost of the trip, exclusive of railroad fares 
to and from San Francisco, will be from $55 to $60 per 
person. Further information may be obtained from 
Mr. Tracy and members intending to go should notify 
him not later than July Ist. 
