REPORT OF THE BOTANIST. 115 
Leaves and petioles of honewort, Cryptotenia Canadensis. 
Common. June. 
The spores closely resemble those of the preceding species, but 
in habit and in the character of the sori it is quite distinct. The 
leaves of the honewort are so thin that the sori form little dot-like 
elevations on the upper surface. 
13. P. Martm-Wirsont Clinton Spring-Beauty Brand. 
Amphigenous; spots none; sori scattered or clustered, unequal, 
at first covered by the epidermis, then surrounded by its ruptured 
remains, reddish-brown ; spores subelliptical, scarcely constricted, 
crowned with a pustule, .0013—.0018' long, .0007—.0008' broad. 
Leaves and stems of the spring beauty, Claytonia Caroliniana. 
Buffalo. Clinton. Knowersville. May. 
This species is closely related to the two preceding, but differs 
from both by its habit and larger spores. It is sometimes found 
associated with Mewdiwm Claytoniatum Schw., growing on the 
same plant and even on the same leaf. 
14. P. Trarett2 B. & C. Mitrewort Brand. 
Spots brown or reddish-brown, sometimes margined with yellow ; 
sori scattered, prominent, reddish-brown; spores subelliptical or 
oblong, slightly constricted, subacuminate, .001’-.0013' long, 
.0005-.0006' broad ; peduncle one-fourth to one-half the length of 
the spore. 
Leaves of mitrewort, Ziarella cordifolia. Sandlake and Wat- 
kins. August and September. 
The sori are generally on the lower surface of the leaf, but some- 
times they occur plentifully on the upper surface. I have seen no 
description of this species, but have speeimens from Dr. Curtis 
which are labeled with this name and are identical with mine. 
§ 4. Spores echinulate, peduncle various. 
15. P. Mentum Pers. Mint Brand. 
Hypogenous ; spots yellow, brown or purplish, sometimes none ; 
sori unequal, subrotund, scattered or clustered, blackish-brown or 
black ; spores subglobose or vertically flattened, not constricted, 
.001' long, .0008' broad; peduncle hyaline, equal to or exceeding 
the length of the spore. , 
Leaves of various mints, Mentha Canadensis, Monarda jfistulosa 
and Hedeoma pulegioides. Buffalo. Clinton. New Baltimore. 
Howe. Greenbush and Watkins. September and October. 
The American specimens, var. Americana, differ from the 
European in having the spores distinetly echinulate, and this 
