4 P. Chicasa Mx. Chickasaw Plum. Branches spinous; lvs. oblong-lanceolate or oblanceolate, glandular serrulate, with the glands pellucid, not at all acuminata, nearly smooth; umbels 2 to 3-flowered, pedicels short, smooth; drupe globous. - A fine fruit shrub, native of Ark., etc, often cultivated. Height 8 to 12f, with a bushy head. Lvs. 1 to 2', petioles about 1/2 long. Fls. small, white, expanding with the lvs., in Apr. Fr. red or yellowish-red, tender and succulent, ripe in Jl. There are several varieties. ‡ (Cerasus, DC.)

5 P. spincsa L. Black Thorn. Sloe. Branches thorny; fls. solitary; cal. cam-pauulate, lobes obtuse, longer than the tube; lvs. pubescent beneath, obovate-elliptical, varying to ovate, sharply and doubly dentate; drupe globous. - Hedge rows and cultivated grounds, Penn. (Pursh.) A thorny shrub 12 to 15f high, native of Europe. § - Some botanists regard the next two numbers as varieties of this, altered by cultivation.

6 P. insititia L. Wild Bullace. Plum. Lvs. ovate-lanceolate or oblanceolate. tapering to the petiole, acute, serrate, pubescent-villous beneath; branches somewhat spiny; fls. generally in pairs; eal. segm. entire, obtuse; pet. obovate; fr. globular. - Tree 15 to 20f high, sparingly naturalized. Lvs. 1 to 1 1/2' long, with short petioles. Petals white. Fr. black, covered with a yellowish bloom. §. •

7 P. domestica L. Common' Garden Plum. Damson Plum. Branches unarmed; lvs. oval or ovate-lanceolate, acute; pedicels nearly solitary; drupe globous, oval, ovoid and obovoid. - This long cultivated tree or shrub is said to be a native of Italy. It rarely exceeds 15f in height. Lvs. quite variable in form, 1 to 3' long, 2/3 as wide, sometimes obtuse, on petioles about 1' in length. Fls. white, generally but one from a bud, expanding while the lvs. are but half grown, in Apr. and May. Fr. black, varying through many colors to white, covered with a rich glaucous bloom, ripe in Aug. About 150 varieties are published in the catalogues of American gardeners. ‡.

8 P. Armeniaca Willd. Apricot. Lvs. broadly ovate, acuminate, sub-cordate at base, denticulate; stip. palmate; fls. sessile, subsolitary, preceding the lvs.; drupe somewhat compressed, subglobous, large. - Occasionally cultivated in gardens, etc Tree 10 - 15f high. Lvs. 2 to 3' long, 3/4 as wide, smooth, petioles nearly 2' long, with several glands. Fls white. Apr. Fr. purplish-yellow, etc, 1 to 2' diam.; ripe Jl. Aug. There are about 20 varieties. ‡

9 P. dasycarpa Ehrh. Black Apricot. Lvs. ovate, acuminate, doubly serrate; petioles with 1 or 2 glands; fls. pedicellate; drupe subglobous. - This species is from Siberia. - The tree or shrub is about the size of the last, hardy and thrifty. Lvs. smooth above, pubescent on the veins beneath, 2 to 3' long, 2/3 as wide, on petioles near 1' long. Fls. white, preceding the lvs., distinctly pedicellate. Fr. dark purple when mature, in July. Fls. Apr. ‡ Neither species is yet common.

7. PER'SICA, Tourn. Peach. Nectarine. (Named from Persia, its native country.) Calyx 5-cleft, tubular-campanulate, deciduous; petals 5; drupe fleshy, tomenlous or smooth; nucleus somewhat compressed, ovate, acute, rugosely furrowed and perforated on the surface. - Small trees. Lvs. conduplicate in vernation.

P. vulgaris Mill. Peach. Lvs. lanceolate, serrate, with all the serratures acute; fls. solitary, subsessile, preceding the lvs.; drupe tomentous. - Tree or shrub, 8 to 15f high. Lvs. 3 to 5' long, 1/3 as wide, smooth, petioles short, with

1 or 2 glands. Fls. rose-color, with the odor of prussic acid. Fr. large, 1 to 2 1/2' diam., yellowish, tinged with purple, densely tomentous. - About 200 varieties of this delicious fruit are named and described in the catalogues of American nurserymen. The double-flowered peach is a highly ornamental variety, blossoming in Apr. and May, but fruitless. β. laevis. Nectarine. Drupe glabrous. - Closely resembles the peach in form, foliage, and fls. The fr. is 1 to 3' diam., smooth, yellow, purple, red, etc. Of its numerous (about 25) subvarieties about a fourth are cling-stones - flesh adhering to the stone, and the remainder free-stones or clear-stones - flesh free or separating from the stone. %

8. AMYG'DALUS, Willd. Almond. Calyx 5-cleft, campanulate, deciduous; petals 5: drupes not fleshy, compressed: nucleus perforate and furrowed, ovate, compressed, one edge acute, the other broad, obtuse. - Trees or shrubs. Lvs. conduplicate in vernation.

1 A. communis Willd. Lvs. lanceolate, serrate, with the lower serratures glandular; fls. sessile, in pairs, appearing before the lvs. - From Barbary. Scarcely cultivated in this country for the fruit, which wo receive mostly from S. Europe. A double-flowered variety is highly ornamental in shrubberies, †

2 A. nana Ait. Dwarf single-flowering Almond. Lvs. ovate, attenuate at base, simply and finely serrate; fls. subsessile, appearing before the lvs. - A very ornamental shrub from Russia. Height about 3f, branching. Lvs. 3 to 6' long, 1/4 as wide, smooth, acuminate at each end. Fls. numerous. Petals oblong, obtuse, roseate, often double. May, Jn. †

3 A pumila Ait. Dwarf double-flowering Almond. Lvs. lanceolate, doubly serrate; fls. pedicellate. - Native of China. A low shrub, highly ornamental, common in cultivation. Sts. 2 to 3f high, branching. Lvs. 3 to 5' by 1/2 to 1', acute at each end, smooth. Fls. very numerous, clothing the whole shrub in their roseate hue, while the lvs. are yet small. May, Jn. †

9. PHOTIN'IA, Lindl. (Gr.Rosaceae Roseworts Part 3 611 light; on account of its brilliant leaves.) Calyx 5 toothed; petals reflexed; ovary villous, 2-carpeled, half-superior styles glabrous; fruit included in the fleshy calyx; testa cartilaginous. - Elegant shrubs or trees, with coriaceous, persistent lvs. Panicles terminal.

1 P. arbutifolia Lindl. Lvs. oblong-lanceolate, acute, distinctly serrate; pedicels shorter than the cal. - California. Height 10 to 20f. Lvs. dark, shining green, very rigid, revolute at edge. Fls. small, numerous, white.