SHEAR: MycotocicaL NorTes AND NEW SPECIES 453 
Phragmidium Andersoni sp. nov. 
1. and II. not seen. III. Sori amphigenous, slightly pul- 
vinate, yellowish, scattered, sparse or abundant, 200-400 4 
diameter; teleutospores oblong-cylindric, densely tuberculate- 
roughened, nearly black and opaque when mature, 60-75 x 
32-34 #4, 2—4-septate ; septa convex ; apex with a small, blunt, 
nearly hyaline papilla which is occasionally obscure ; pedicel color- 
less, 60-105 yz long, the lower half with an oblong or elliptical 
rugulose roughened fistulose enlargement 15-20 y diameter. 
Type material no. 319 Griffiths, West American Fungi on 
Potentilla fruticosa, Big Horn Mts., Wyoming, Williams & Grif- 
fiths, August, 1898. Other specimens examined : No. 137 Ander- 
son, Parasitic Fungi Mont. Upper Sand Coulee, Mont., August, 
1888, on Potentilla fruticosa Myc. Herb. Dept. of Agriculture 
and no. 319a Griffiths, West Amer. Fungi. Collected on same 
mw. LS. & E A Bessey, no. 988, near Grand Lake, 
Colo. ; also no. 1201 Merrill & Wilcox, Jackson, Wyo., Igol!. 
This was first collected, so far as I know, by my late lamented 
friend, F. W. Anderson, whose name I have associated with it. It 
appears quite different from any of the species heretofore described 
on Fotentilla but seems related to P. ruédi, especially in the char- 
acter of the pedicel. 
Aecidium atriplicis sp. nov. 
Spermagonia not seen, 
Pseudoperidia hypophyllous, thickly and mostly evenly scat- 
tered over the surface, .5-1 mm. long, 240-320 diameter, closely 
Surrounded at the base by the ruptured epidermis ; margin coarsely 
crenate-dentate ; cells mostly irregularly pentagonal, 20-30 y diam- 
eter, densely reticulate-ridged, appearing densely and minutely 
Papillate with low magnification ; spores smooth, yellowish, irreg- 
ularly globose, 20-24 2 diameter. 
On leaves of Atriplex Nuttallii, Montrose, Colo. Type no. 975, 
i 1.5. July, 1897. Type material, Griffiths, West American 
F ungi, no 321. The fungus attacks almost or quite every leaf of 
the plants affected, making them dwarfed and stunted so that they 
Produce little or no inflorescence. The leaves are about normal in 
appearance on the upper surface, but slightly thickened and below 
the normal in size. 
