ROSACEH. (ROSE FAMILY.) 51 
petals. Ovary solitary, free, with two pendulous ovules; style terminal. Fruit a drupe, 
with usually a long stone containing one seed. 
Deciduous; flowers white. 
Corymbose; appearing before or with the leaves............0020005 P. emarginata. 1 
Racemose; appearing after the leaves.......0..cesececeeenceccceneees P. demissa. 2 
Evergreen; leafless racemes axiMAary’ cocoa s s:e'einssiciew'eiese:sieieinie win’ eit sates P. ilicifolia. 3 
1. P. emarginata, Walp. Four to eight feet high, with bark like the ordinary 
cherry tree, and chestnut-brown very slender branches; leaves oblong-obovate to oblan- 
ceolate, obtuse, narrowed to a short petiole; corymb 6-12-flowered, shorter than the 
leaves; flowers 4 to 6 lines broad; fruit globose, black; stone with a thick grooved ridge 
upon one side. 
2. P. demissa. Walp. (Witp CHERRY.) Slender, 2 to 12 ft. high; leaves ovate to 
oblong-ovate, abruptly acuminate, mostly rounded or somewhat cordate at the base; 
racemes 3 or 4 inches long; fruit purplish-black or red, edible but astringent. 
3. P., ilicifolia, Walp. (Evercreen CHErry.) Much branched, 8 to 12 ft. high, 
with grayish-brown bark; leaves thick and rigid, shining above, broadly ovate to ovate- 
lanceolate, spinosely toothed; flowers small in racemes 4 to 2 inches long; fruit red or 
dark purple, half an inch or more thick. 
2. NUTTALLIA, Torr. & Gr. Oso Berry. 
Petals 5, broadly spatulate, erect. Stamens 15 in two rows, 10 inserted with the 
petals, and 5 lower down upon the disk lining the calyx-tube, filaments very short, the 
lower declined. Carpels 5, inserted on the persistent base of the calyx-tube, free, smooth. 
1. WN. cerasiformis, Torr. & Gr. A shrub 2 to15 ft. high; leaves rather broadly 
oblanceolate, short petioled; racemes of greenish white flowers, appearing with the 
branchlets from the same bud; drupes blue-black; with a slight furrow on the inner side, 
6 to 8 lines long, bitter. 
3. SPIRZIA, L. 
Calyx persistent, 5-lobed. Petals 5, rounded, nearly sessile. Stamens 20 or more, 
inserted with the petals. Carpels distinct and sessile, becoming several-seeded follicles. 
1. -S. discolor, Pursh. A diffuse shrub, 4 ft. high or more with grayish brown bark, 
pubescent; leaves broadly ovate, truncate at base or cuneate into a slender petiole, pin- 
nately toothed or lobed, the lobes often dentate; panicle of dingy white flowers much 
branched, tomentose. 
Var. arizefolia, Wat. Taller, 5 to 15 ft. high, leaves 2 or 3 inches long, panicle larger. 
Var. dumosa. Wat. Only 1 or 2 ft. high, leaves an inch long or less, cuneate into a 
short margined petiole. 
4, NBILLIA, Don. Nuve-Barxr. 
Carpels 1 to 5, inflated and divergent; flowers large, white, in simple corymbs. 
