133 
In crumbling lime rock, cliffs and banks of gulches, Santa 
Eulalia Mt., Chihuahua, Mexico. Collected by C. G. Pringle, 
April, 1885. Also in Parry and Palmer’s collection of 1879-’80, 
from Coahuila and Nuevo Leon (1382, 1383), the specimens 
weather-beaten and nearly destitute of powder. 
It was Mr. Pringle’s desire that this fern be given to Dr. Ed- 
ward Palmer, who, with Dr. Parry, had previously collected it, 
but learning that Mr. Baker had named another species in this 
genus (991 Parry and Palmer Coll., |. c.) for Dr. Palmer, and Dr. 
Parry’s name being also in use, it seemed to me eminently proper 
to give it to one whose ample collection of perfect material so 
clearly established its specific value. 
Mr. Pringle wrote that during most of the year the plants are 
as dry as the soil in which they grow, and as white as the lime 
debris which strrounds them. This gives to the whole plant a 
contracted appearance which makes the fronds seem narrower 
than they really are. The species stands nearest to Wotholena 
nivea, Desv., but in that fern the fronds are usually more com- 
pound, with powder only on the under side of the segments, are 
less coriaceous in texture, and the stipites are uniformly terete. 
The wonderful tenacity with which this elegant species holds 
to its life-purpose through so many months of severe drouths, 
fitly commemorates the indomitable energy and perseverance of 
the excellent botanist to whom it is here dedicated. 
447—FPelle@a aspera, Baker. Rocky hills near Chihuahua ; 
October. 
448—Pellea cordata, J. Sm. Under dry limestone cliffs; 
October. 
The typical form, and very distinct from the Arizona and New 
Mexican plant (also collected here by Mr. Pringle) now passing 
under this name, but which must, in my judgment, be otherwise 
disposed of. The distinctive characters of the two plants will be 
pointed out in my remarks on the next species. 
461—Pellea intermedia, Mett.—at least in part—var. pubes- 
cens, Mett. (P. cordata of my catalogue and check list; P. andro- 
medefolia, Fée, var. pubescens, D. C. Eaton.) Near Chihuahua, 
Pringle. Also from New Mexico, Chas. Wright, 825 in part; 
Rusby, 1880; Arizona, Lemmon, 1881-’82. 
