68 AMERICAN FERN JOURNAL 
to different places near by should thrive and perpetuate 
themselves, the species will unfortunately have dis- 
appeared from our United States flora. It was believed 
by Mr. MeNeill that the fern grew naturally where 
discovered and this opinion is shared by all who are 
fortunate enough to have visited the locality. 
ATHYRIUM AMERICANUM (BuTTERS) Maxon.—By an 
unfortunate clerical error the locality data for the recent 
Nevada record‘ of this species were stated wrongly. 
The record should stand as follows: Head of Caudle 
Creek, Pole Creek Ranger District, Humboldt Forest, 
Elko County, Nevada, alt. 2400-2550 meters, Aug. 18, 
1917, W. W. Eggleston 14135. 
Woopwarp1a CHamissor Brack.—For nearly twenty 
years the American material previously included in 
Woodwardia radicans has very generally and properly 
been regarded as specifically distinct from that exclus- 
ively Old World plant. It has been assumed, however, 
that the plants ranging from the region of Puget Sound 
to eastern Guatemala represent but a single species, W. 
spinulosa Mart. & Gal. Recent study shows, neverthe- 
less, that the United States and British Columbia speci- 
mens differ consistently from the plant of Mexico and 
Guatemala; and while the distinguishing characters are 
variable, and to a certain extent comparative, they seem 
important enough to justify the recognition of two close- 
ly related species in the North American area. The name 
Woodwardia spinulosa, based upon Mexican material,* 
applies to the southern form; the northern species, which 
is especially common in the coast ranges of California, 
was well characterized long ago on California specimens 
as W. Chamissoi, by Brackenridge.* The main points 
of distinction are as follows: 
4 Amer. Fern Journ. 8: 121. 1918. 
* Nouv. Mém. Acad. Sci. Brux. 155: 64. 1842. 
Wilkes, U. 8. Explor. Exped. 16: 138. 1854. 
