WEST AMERICAN ASPERIFOLI®. 91 
up to the rather dense and short terminal paniculate cyme ; 
herbage pale with a somewhat villous-tomentose pubescence ; 
lowest leaves oblong-spatulate, petiolate, the upper oblong- 
lanceolate, sessile: calyx parted almost to the base, the seg- 
ments linear-lanceolate, obtusish, densely somewhat villous- 
ciliate, and also externally, together with the short tube 
and the pedicels, strigose-pubescent: corolla dark-blue, 
about 8 lines long, the tube twice the length of the calyx, 
its limb notably subcampanulate. 
Summit of Mt. Hayden, southern Colorado, at about 
13,000 feet, 14 July, 1898, Messrs. Baker, Earle and Tracy, n 
576. Bearing considerable likeness to M. Fendleri as to size, 
foliage, inflorescence, ete., but very remote from that species, 
as the calyx fully demonstrates. 
LrrHOSPERMUM ALBICANS. Near L. angustifolium, but 
stems only 2 or 3 from the root, very erect from the base, 
commonly more than a foot high at first flowering, slender 
and simple up to the shortly racemose summit; base of 
stem, as well as pedicels and calyx, white with a fine and 
dense strigose pubescence, other parts silvery-hoary with a 
less fine and dense indument of like character: leaves 
linear, ascending or suberect, the margins scarcely revolute, 
beset with closely appressed setose hairs: corollas even at 
earliest flowering less than an inch long, salverform, deep- 
yellow, the rounded lobes crenulate: fruiting pedicels as- 
cending: nutlets ovate, neither rugose nor pitted, but very 
smooth, white and shining. 
Collected at Arboles, southern Colorado, by Mr. C. F. 
Baker, June 10 and 25, the specimens of the first date being 
in early flower, the others bearing fruit, and also the later 
and smaller corollas. Perhaps some New Mexican and 
Texan specimens which have been labelled L. angustifolium 
may belong here; but the species is well marked by its 
peculiarly strict upright and simple habit, white pubescence, 
small corollas and very smooth nutlets. 
a 
