82 PITTONIA. 
slender : stolons short, depressed, rosulately leafy, the leaves 
plane and spreading, about ? inch long, obovate-spatulate, 
very obtuse, not even abruptly pointed, 1-nerved, greenish 
above yet clothed with an extremely fine and closely ap- 
pressed silky tomentum, beneath silvery-white with a more 
dense indument of the same kind: cauline leaves oblong, 
acutish, spreading or ascending: heads large, 3 or 4, sessile 
or short-pedicellate: bracts of the involucre in about 4 series; 
their scarious tips ovate-lanceolate or narrower, acute or 
acutish, faintly tinged with pink, the herbaceous portion of 
the bract ending in a rather conspicuous brownish spot. 
In open places among the more elevated pine woods on 
Long’s Peak, Colorado, at about 10,000 ft., Theo. Holm, 8 
Aug. 1899. Species allied to A. aprica of the lower moun- 
tains, but essentially different by its thin plane rosulate ob- 
tuse leaves, and their peculiar fine glistening indument; 
and the involucres with their brown-spotted bracts are also 
quite unlike those of any form of A. aprica which has yet 
appeared. 
A. NARDINA. Cespitose, the slender stems of the male 
plant (female not known) about 6 or 8 inches high, tinged 
with red-brown under the sparse indumerit: stolons wiry 
but very slender, 2 or 3 inches long and sparsely or more 
densely leafy, the leaves all narrowly oblanceolate, of firm 
texture, almost pungently mucronate at the acute apex, both 
faces canescently tomentose, the indument fine and ap- 
pressed but not lustrous: cauline leaves thin, narrow and 
erect; heads ten or more, very distinctly pedicellate and 
forming an almost exact corymb: tips of the involucral 
bracts obovate, obtuse, large and spreading, of very fine 
texture and a milky whiteness, though with a dark-purple 
spot at base: dilated tips of the pappus-bristles entire or 
crenulate rather than serrulate. 
An exceedingly graceful and beautiful species, at least as 
to the male plant, found by Mr. Theo. Holm on dry ground 
