214 BROOKLYN BOTANIC GARDEN MEMOIRS 
On PINACEAE: O, I. 
Picea Engelmanit Parry—Sumpter, Baker Co., Sept. 25, 1909, 
G. G. Hedgcock, 1916. 
On Pyro.aceaE: II, III. 
Pyrola secunda L.—North slope Mt. Hood, Aug. 7, 1914, 1607; 
Trail to Elk Meadows, Hood River Co., July 23, 1915, 3061; Columbia 
Highway, Multnomah Co., Aug. 19, 1916, J. R. Weir, 269. 
Pyrola sp.—Grant’s Pass, Josephine Co., Sept. 3, 1916, J. R 
Weir, 268. 
The genetic relation of this species with Peridermium conorum 
Piceae was first suggested by Rostrup (I. c.).. So far as the writer is 
aware the first culture work confirming this observation was made by 
Fraser (Mycol. 4: 183. 1912), who succeeded in obtaining infection 
resulting in pycnia and aecia on the cones of Picea mariana and P. 
canadensis, following exposure to germinating telia on Pyrola americana 
and P. elliptica. 
23. Milesia Polystichii Wineland n. sp. 
O. and I. Unknown. 
II. Uredinia hypophyllous, scattered, roundish, 0.2-0.3 mm. across, 
bullate, brownish yellow, tradily dehiscent by a central pore, peridium 
well developed, cells above polygonal, approximately isodiametric, 
diameter about 7 pu, cells at the sides elongated to 21 yu, outer walls 
2-2.5 4, inner walls 2.5-3 mu; urediniospores obovoid, ellipsoid, or 
oblong, 18-23 by 26-35 u, wall colorless, 1.5-2.5 in thickness, 
strongly and sparsely echinulate, pores obscure. 
III. Telia unknown. 
ON POLYPODIACEAE: 
Polystichum munitum (Kaulf.) Presl.—Grant’s Pass, Josephine 
Co., Sept. 5, 1916, J. R. Weir, 260 (type). 
This species was separated from material referred to Hyalopsora 
laeviuscula in the writer’s herbarium by Miss Grace O. Wineland who 
has been studying the fern rusts of North America in this laboratory. 
24. PUCCINIASTRUM ABIETI-CHAMAENERII Kleb. Prings. Jahrb. f. 
Wiss. Bot. 34: 387. 1900. 
On PINACEAE: I. 
Abies grandis Lind|.—Dee, Hood River Co., July 23, 1915, 3355. 
Abies lasiocarpa Nutt.—North slope Mt. Hood, 4,500 ft., Aug. 9, 
1914, 3205. 
On ONAGRACEAE: II, ITI. 
Chamaenerion angustifolium (L.) Scop.—Bonneville, Multnomah 
Co., Aug. 11, 1910, 1075; Garden Home, Multnomah Co., Aug. 1911, 
1990; Southwest slope Mt. Jefferson, July 3, 1914, F. D. Bailey, 
