Se Ey oon, Stee Be Nee eye OT eS et a eet Cea, eee Nes oe tee ee eee aden 
oro] BRIEFER ARTICLES 383 
the surface (fig. 8) like those that are characteristic of A. hypogyna. 
In only two cases were intercalary oogonia seen. 
In old cultures the protoplasm becomes condensed and segregated 
into certain restricted areas of the hyphae to form resting fragments, 
which, though not of definite shape, may be regarded as chlamydospores. 
In the Racemosa group, as mentioned above, there may now be 
included A. racemosa, A. racemosa var. stelligera, A. hypogyna, and A. 
 caroliniana. The group may be defined as follows: 
Oogonia terminating short branches, racemosely arranged. Oospores 
few, generally one or two. Antheridia absent, or of suboogonial origin.— 
W. C. Coker, Chapel Hill, N.C. 
SOME NEW SAPROPHYTIC FUNGI OF THE MIDDLE ROCKY 
MOUNTAIN REGION 
Until a year ago (June 1909) the saprophytic fungi of the Rocky 
Mountain region included within Wyoming had remained practically 
untouched. It was with great interest, therefore, that the writer began 
the task of making a collection of these fungi under the kindly sugges- 
tion and help of Professor AvVEN Netson. The particular region 
studied includes the whole of the Medicine Bow National Forest, together 
with the vast extent of the Laramie Plains. The timber in the forest is 
| q chiefly lodgepole pine, Englemann spruce, Douglas fir, and balsam, with 
dense growths of aspen on the boundaries. In many places the timber 
1S very dense, in consequence of which the humus formed of the needles 
: is very thick; the soil in the open timber also is very rich. The whole 
region is well watered by the melting snows and by the numerous 
mountain streams and creeks, resulting in very favorable conditions for 
the growth of the fleshy fungi. The great difference in the altitude, 
_ Which ranges from 21 30 to 3900 meters, further aids in the —s es 
_ Many varying conditions, thus giving not only richness in specimens 
but a wealth of species as well. : 
In the very precursory examination of the region, the writer was 
astonished at the great quantity and variety of forms. The further 
_ Collections, which it is expected will be made, will no doubt extend the 
list greatly. This list, as finally worked out, will be published as a 
: Whole, but for the present the following apparently new species only 
_ ate presented. 
thelasma, gen. nov.—Pileus somewhat fleshy, convex, then 
€xpanded: lamellae very decurrent, somewhat unequal, with acute edges: 
