328 Order 47.— ROSACEA. 



smooth. Fls. white, 2 to 5 in each of the numerous umbels. Fr. globular, eat- 

 able, red or purple, little inferior in sizo to the common garden plum. Ripe in 

 Aug., Sept. FL in May. (P. littoralis Bw.) 



3 P. umbellata Ell. Lvs. lanceolate or lance-oval, acute or barely acuminate, 

 obscurely serrulate ; petioles glandless; umbels 3 to 5-flowered ; fr. oval, small, glau- 

 cous, red. — Dry soils, in copses, etc., Savannah (Feay, Pond) to Bainbridge, Ga. 

 and Fla. A small, bushy tree, scarcely thorny. The flowers bloom and decay 

 before tho lvs. appear. Lvs. small (about 18 ' by 9"), downy all over or often 

 glabrous, with 1 or 2 glands, if any, on tho margin near tho base. Drupes pleas- 

 antly acid and much used, ripe in Jl. and Aug. Fl. in Mar. 



4 P. Cliicasa Mx. Chickasaw Plum. Branches spinous; lvs. oblong-lanceo- 

 late or oblanceolato, glandular serrulate, with the glands "pellucid, not at all acumi- 

 nate, nearly smooth ; umbels 2 to 3-flowered, pedicels short, smooth ; drupo 

 globous. — A fine fruit shrub, nativo of Ark., &c, often culiivated. Height 8 to 

 12f, with a bushy head. Lvs. 1 to 2', petioles about -J, 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. spinosa L. Black Thorn. Sloe. Branches thorny ; fls. solitary ; cal. cam- 

 panulate, 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, 

 nativo of Europe. § — Some botanists regard the next two numbers as varieties 

 of this, altered by cultivation. 



6 P. insititia L. Wild Btjllace. Plum. Lvs. ovate-lanceolate or oblanceolate, 

 tapering to tho petiole, acute, serrate, pubescent-villous beneath ; branches some- 

 what spiny; fls. generally in pairs ; cal. segm. entire, obtuso; pet. obovate; fr. 

 globular. — Treo 15 to 2 Of high, sparingly naturalized. Lvs. 1 1o lg' 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 ; drupo 

 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, § as wide, sometimes obtuse, on petioles about 1' in length. Fls. 

 white, generally but one from a bud, expanding while the lvs. arc but half 

 grown, in Apr. and May. Fr. black, varying through many colors to white, 

 covered with a rich glaucous bloom, ripo in Aug. About 150 varieties are pub- 

 lished 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 tho 

 lvs. ; drupo somewhat compressed, subglobous, large. — Occasionally cultivated in 

 gardens, &c. Tree 10 — 15f high. Lvs. 2 to 3' long, £ as wide, smooth, petioles 

 nearly 2' long, with several glands. Fls. white. Apr. Fr. purplish-yellow, &a, 

 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. — Tho treo or shrub is about tho size of the last, hardy and 

 thrifty. Lvs. smooth above, pubescent on the veins beneath, 2 to 3' long, § as 

 wide, on petioles near 1' long. Fls. white, preceding tho lvs., distinctly pedicel- 

 late. 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, tomentous or smooth ; nucleus somewhat com- 

 pressed, ovate, acute, rugosely furrowed and perforated ou the surface. 

 — Small trees. Lvs. conduplicate in vernation. 



P. vulgaris Mill. Peach. Lvs. lanceolate, serrate, with all tho serratures 

 acute ; fls. solitary, subsessile, preceding the lvs. ; drupe tomentous. — Tree or 

 shrub, 8 to 15f high. Lvs. 3 to 5' long, £ as wide, smooth, petioles short, with 



