CATALOGUE. Ill 



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. I. a). — Southern Nevada. Dr. Torrey remarks, 'that the 

 leaflets are almost as small and crowded as in Chamcebatia 1 ; from this, 

 however, it may at any stage be distinguished by the pleasant balsamic 

 odor of the latter. Loew, Arizona (188). 



Spir-EA discolor, Pursh, var. dumosa, Watson, Nutt. (S. aricefolia, 

 Smith, var. discolor, T. & G.) — Mount Graham, Arizona, at 9,250 feet 

 altitude (396), and Colorado (401). 



Spir-ea ciESPiTosA, Nutt. — Utah. 



Rubus Neo-Mexicanus, Gray (PI. Wright. 2, p. 55). — Shrub 5-10° 

 high, unarmed, smooth and glandless; bark peeling away from the older 

 branches, as in B. deliciosus; leaves round-cordate, longer than the petioles, 

 3-lobed, irregularly deeply and doubly serrate ; stipules lance-ovate, nearly 

 £' long, these with leaves and young shoots all canescently pubescent; 

 calyx-lobes tipped with a conspicuous 3-ribbed appendage ; flowers white, 

 1£' 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). 



Rubus deliciosus, Torr. — Leaves uniform-orbicular, rugose, 1-2' in 

 diameter, smaller somewhat than in preceding species ; flowers white, 2' in 

 diameter; tips to the petals J-J' long, 1-2" wide, indistinctly ribbed. — Colo- 

 rado (380). 



Rubus Nutkanus, Mocino. — Utah. 



Rubus 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. 



Cerocarpus ledipolius, Nutt. "Mountain mahogany." — Nevada and 

 Utah. 



Cowania Mexicana, Don. — Sanoita Valley, Southern Arizona, at 5,000 

 to 7,000 feet altitude (597) ; Nevada. 



Dryas octopetala, L. — South Park, Colorado, at 12,000 feet altitude 



