162 AMYGDALACE. CERASUS. 
OSMARONIA. 
C. mollis Dougl.l.c. Prunus emarginata var. mollis Brew. A-smalt > 
straight graceful tree 20-50 feet high by 2-20 inches in diameter, with red- 
dish, characteristic cherry bark and slender ashy-gray or reddish branch- — 
lets: young branches and inflorescence soft-pubescent: stipules lanceolate, 
pectinate, 1-2 lines long; leaves obovate to oblong or oblanceolate, mostly 
acutish, crenately serrulate, 1-3 inches long, narrowed below to a short 
petiole, pubescent beneath, nearly smooth above: corymbs 5-10-flowered ; 
calyx turbinate, the oblong, obtuse, entire lobes soon reflexed, not more 
than half as long as the tube; petals obovate, on short claws, 2 lines long: 
fruit bright red, about 3-4 lines long, intensely bitter: stone wrinkled, 
carinate on one edge, rounded or barely acute on the other. Commonin. 
forests, Brit. Columbia to California. 
§ 2. Papus T. & G. l.c. 410. Flowers in racemes terminat- » 
ing leafy branches, appearing after the evolution of the leaves: 
leaves deciduous. 
C. demissa Nutt. T. & G. Fl. i, 411. Prunus demissa Walp. An erect 
slender shrub 2-20 feet high: leaves obovate or oblong-ovate, usually - 
broadest above the middle, abruptly acuminate, mostly rounded or some- , 
what cordate at base, sharply serrate with straight slender teeth, more or 
less pubescent beneath, 2-4 inches long, the petiole usually biglandular 
just below its summit: racemes 3-4 inches long, many-flowered, longer than 
the leaves, usually nodding; calyx hemispherical, the lobes short and ob- 
tuse, glandularly ciliate, much shorter than the tube; petals white, orbic- 
ular to elliptical, 2-3 lines long: fruit globose, purplish-black or red, 
sweet and edible but astringent: stone globose. On rocky hillsand river 
banks, Brit. Columbia to California and the Rocky Mountains. “| 
3 OSMARONIA Greene Pitt. ii, 189. 
NUTTALLIA T. & G. H. & A. Bot. Beech. Supp. 336 t. 82. 
Shrubs with simple alternate deciduous leaves without sti- 
pules and polygamo-dicecious white flowers in loose nodding 
bracted racemes which appear with the branchlets from the same 
buds. Calyx 5-lobed, deciduous. Petals 5, alternate with the, 
lobes of the calyx. Stamens 15, in two rows, 10 inserted with 
the petals and 5 lower down upon the disk that lines the calyx- 
tube, those of the fertile flowers all with abortive anthers. Car-, 
pels 5, inserted upon the persistent base of the calyx, free; 
styles lateral, jointed at base; ovules two in each carpel, pendu- 
lous. Fruit 1-5, 1-seeded drupes with thin pulp and smooth 
bony stone. Cotyledons convolute in the bud. 
@. cerasiformis Greene 1. c. 191. Nuttallia cerasiformis T. & G. 
Shrubs with clustered stems 2-15 feet high, dark brown bark and rather 
slender glabrous branches: leaves broadly oblanceolate, acute or acutish, 
attenuate to a short slender petiole, entire, smooth above, soft-pubescent . 
beneath, 2-4 inches long: racemes short-peduncled, shorter than the 
leaves; bracts spatulate, equalling the calyx-tube; deciduous; pedicels 6-7 
lines long, with a pair of linear, acuminate bractlets near the base of the. 
calyx; calyx campanulate, the short triangular lobes about half as long 
as the tube: petals spatulate, twice as long as the calyx-lobes, those of the. 
fertile flowers smaller: drupes blue-black with a bloom when fully mature, 
5-8 lines long, oblong, with a slight furrow on the inner side; stone 
smooth, somewhat compressed. Common in wooded districts, Brit. Colum- 
bia to California. Flowering in very early spring. 
