CATALOGUE. 111 
late. Ovaries 5, distinct, at first woolly; styles filiform. Mature carpels 
nearly glabrous; ovules 8-10, pendulous from the upper part of the 
ovary” (Torr. /. c.).—Southern Nevada. Dr. Torrey remarks, ‘that the 
leaflets are almost as small and crowded as in Chamebatia’; from this, 
however, it may at any stage be distinguished by the pleasant halsamic 
odor of the latter. Loew, Arizona (188). 
Sprr£ZA DIscoLor, Pursh, var. pumosa, Watson, Nutt. (S. ariefolia, 
Smith, var. discolor, T. & G.)—Mount Graham, Arizona, at 9,250 feet 
altitude (396), and Colorado (401). 
SpPrRzA cHspPiTosa, Nutt—Utah. 
Rusus Nro-Mexicanus, Gray (Pl. Wright. 2, p. 55).—Shrub 5-10° 
high, unarmed, smooth and glandless; bark peeling away from the older 
branches, as in R. deliciosus; leaves round-cordate, longer than the petioles, 
3-lobed, irregularly deeply and doubly serrate ; stipules lance-ovate, nearly 
4’ long, these with leaves and young shoots all canescently pubescent; 
calyx-lobes tipped with a conspicuous 3-ribbed appendage; flowers white, 
13’ in diameter; carpels red, densely agglomerated into a head; seeds 
conspicuously rugose-reticulate. As already remarked by Dr. Gray, it 
is very close to deliciosus, Torr—Mount Graham, Ariz., 9,250 feet altitude 
(397). 
Rusus pbexiciosus, Torr.—Leaves uniform-orbicular, rugose, 1-2’ in 
diameter, smaller somewhat than in preceding species ; flowers white, 2’ in 
diameter; tips to the petals 4-4’ long, 1-2” wide, indistinctly ribbed.—Colo- 
rado (380). : 
Rusus Nutxanus, Mocino.—Utah. 
Rusus strigosus, Michx.—Utah; Mosquito Pass, Colorado (388). _ 
PursHIA TRIDENTATA, DC.—Nevada and Utah. 
CerocarPus PaRVIFOLIUs, Nutt—Colorado, at middle altitudes, along 
the valley of the Upper Arkansas (69, 980); Arizona. 
Crrocarpus LEDIFOLIUS, Nutt. “Mountain mahogany.”—Nevada and 
Utah. 
Cowanta Mexicana, Don.—Sanoita Valley, Southern Arizona, at 5,000 
to 7,000 feet altitude (597); Nevada. 
Dryas ocroreTaLa, L.—South Park, Colorado, at 12,000 feet altitude 
