536 
G. R. BISBY 
Some confusion has existed concerning the synonymy of this 
species. Further study has shown that the synonymy, as given with 
the description in the North American Flora, should be revised as 
follows: Uredo Epilobii DC. in Lam. & DC. Fl. Frang. 6: 73. 1815; 
and Caeoma Epilobii Link, in Willd. Sp. PI. 6^: 29. 1825, are syno- 
nyms of Puccinia Epilohii-tetragoni, and are discussed in this paper 
under that species. In the place of Caeoma Epilobii in the Flora, 
should be listed Caeoma Onagrarum Link, in Willd. Sp. PI. 6^: 29. 
1825. (In part.) Following the latter name should be added Erysibe 
pustulata Epilobium Wallr., Fl. Crypt. Germ. 2: 198. 1833. Me- 
lampsora Chamaenerii Rost., Medd. Bot. For. Kjobenhavn. i: 77. 
1884 (nomen nudum; no description) might be added to the synonymy, 
and also Pucciniastrum Chamaenerii Rostr., Plantepatol. 304. 1902. 
The aecia of Pucciniastrum pustulatum (or, more accurately, of 
Pucciniastrum Abieti- chamaenerii) were unknown in America at the 
date of publication in the North American Flora. Fraser (Mycol. 
4: 176-177, 1912) first cultured this rust in America. Aecia have been 
found upon Pinaceae in America, and are represented in the her- 
barium as follows: on Abies balsamea (L.) Mill., Nova Scotia, Fraser, 
1911; Michigan, Kauffman, 1914; Vermont, Orton, 1913; Wisconsin, 
Cheney, 1906; on Abies concolor (Cord.) Parry, Colorado, Bethel, 
1903, 1909, 1 91 3; on Abies grandis Lindl., Oregon, Jackson, 191 5; 
Idaho, Weir, 1915; on Abies lasiocarpa (Hook.) Nutt., British Colum- 
bia, Holway, 1907; Oregon, Jackson, 1914; Colorado, Bethel, 1915. 
The aecia of this species as found in America, produce spores 
somewhat larger than those of European collections, being 13-18 by 
17-23 IX here, and but 10-14 by 13-21 /x in Europe. No other dif- 
ference is noted. 
The range of the uredinia and telia of this species has also been 
extended, the following additions having been made since the publi- 
cation in 1907: to Chamaenerion angustifolium (L.) Scop, add New 
Mexico, Oregon, West Virginia; Alberta, British Columbia, Nova 
Scotia. To Epilobium adenocaulon Haussk. add Idaho, North Dakota, 
Oregon, South Dakota, Utah, Virginia, Washington, West Virginia, 
Wisconsin, Wyoming; British Columbia. Add Epilobium affine Bong., 
Alaska. To Epilobium anagallidifolium Lam., add Utah. Add 
Epilobium novomexicanum Hausskn., New Mexico; Epilobium cali- 
fornicum Hausskn., California; and Epilobium brevistylum Barbey, 
Oregon. 
