214 BROOKLYN BOTANIC GARDEN MEMOIRS 



On Pinaceae: O, I. 



Picea Engelmanii Parry — Sumpter, Baker Co., Sept. 25, 1909, 

 G. G. Hedgcock, IQ16. 

 On Pyrolaceae: II, III. 



Pyrola secunda L.^ — North slope Mt. Hood, Aug. 7, 1914, 1607; 

 Trail to Elk Meadows, Hood River Co., July 23, 1915, J0(5i; Columbia 

 Highway, Multnomah Co., Aug. 19, 1916, J. R. Weir, 26Q. 



Pyrola sp. — Grant's Pass, Josephine Co., Sept. 3, 1916, J. R 

 Weir,' 268. 



The genetic relation of this species with Pender mium conorum 

 Piceae was first suggested by Rostrup (1. c). So far as the writer is 

 aware the first culture work confirming this observation was made by 

 Eraser (Mycol. 4: 183. 1912), who succeeded in obtaining infection 

 resulting in pycnia and aecia on the cones of Picea mariana and P. 

 cafiadensis, 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 /x, cells at the sides elongated to 21 ju, outer walls 

 2-2.5 /i, inner walls 2.5-3 m; urediniospores obovoid, ellipsoid, or 

 oblong, 18-23 by 26-35 /z, wall colorless, 1.5-2.5 /x 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 

 laeviusaila 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 Lindl.^Dee, Hood River Co., July 23, 1915, 3355- 

 Abies lasiocarpa Nutt.- — North slope Mt. Hood, 4,500 ft., Aug. 9, 



1914, 329s. 



On Onagraceae: II, III. 



Chamaenerion angiistifolium (L.) Scop. — Bonneville, Multnomah 



Co., Aug. II, 1910, 1075; Garden Home, Multnomah Co., Aug. 1911, 



1990; Southwest slope Mt. Jefferson, July 3, 1914, F. D. Bailey, 



