406 ROSACEA. Prunus. 



1. CHRYSOBALANUS. Linn. ; Lam. ill. t. 428 ; DC.prodr. 2. p. 525. 



Cal3'K campanulate, 5-cleft, persistent ; the segments nearly cfiual. Pe- 

 tals 5, unguiculate or sessile. Stamens about 20, in a single series ; those 

 next the style sometimes, shorter and abortive. Ovary sessile, with 2 col- 

 lateral ovules ; the style arising from the base. Drupe 1-seeded, with a 

 small quantity of pulp ; the nucleus coriaceous, usually 5-sulcate. — Un- 

 armed shrubs, with alternate mostly entire pinnately veined and reticulated 

 leaves, and minute stipules. Flowers in axillary or temiinal paniculate 

 cymes. 



1. C. oblongifolius (Michx.) : flowers terminal ; filaments united at the 

 base, and, as well as the ovary, glabrous ; petals roundish, sessile ; fruit 

 oblong, nearly dry ; the nucleus not grooved ; leaves oblong, obovate-oblong, 

 or oblanceolate, sometimes emarginate, obscurely crenulate, usually gla- 

 brous ; the upper surface reticulated and shining. — Michx. ! jl. 1. p. 283 ; 

 Nutt. gen. 1. p. 301 ; Ell. sk. 1. p. 539 ; DC. I. c 



Sandy pine woods, Georgia ! Alabama ! and Florida ! May-June. — 

 Trunk prostrate, slender ; the branches 8-12 inches high. Leaves nearly 

 sessile, sometimes (ex Michaux Sf Nutt.) tomentose beneath. Flowers small, 

 whhe. Style compressed. Fruit nearly an inch in length. — In some cases 

 we observe the vestiges of the style arising near the summit of the drupe. 

 The endocarp is neither grooved, nor dehiscent. 



2. C. Icaco (Linn.) : flowers axillary ; filaments and ovary hirsute ; fruit 

 (large) roundish, esculent ; leaves obovate or roundish, emarginate, the up- 

 per surface shining and reticulated. — Jacq. stirp. Amer. t. 94 ; Plum.. Amer. 

 t. 158 ; BC. ! i^rodr. 2. p. 525. 



Southern Florida, Br. Hasler /—The fruit is eaten in the West Indies, 

 under the name of Cocoa-Plum. 



SuBORDKR II, AMYGDALE^. Juss. 



Calyx free from the ovary, deciduous. Ovary solitary, with 2 

 collateral suspended ovules : styles terminal : stigma reniform or 

 emarginate. Fruit a drupe. Seed mostly solitary, suspended in 

 consequence of the cohesion of the funiculus with the side of the 

 cavity of the ovary. — Trees or shrubs (confined to cold or tempe- 

 rate climatv: ,) with simple leaves, which are commonly glandular 

 towards the base. Stipules free. Fruit eatable : the bark yielding 

 gum ; and the leaves, bark, and kernel containing hydrocyanic 

 acid. 



2. PRUNUS. Tourn. ; Jnss. gen. p. 341 ; DC. prodr. 2. p. 532. 



Calyx urceolate-hemispherical ; the limb 5-parted, regular, deciduous. 

 Petals much spreading. Stamens 15-30. Ovary glabrous, with 2 collate- 

 ral pendulous ovules. Drupe ovate or oblong, fleshy, glabrous, usually co- 

 vered with a bloom ; the stone or nucleus more or less compressed, acute, 

 smooth, the margins somewhat grooved. — Small trees or shrubs. Leaves 

 serrate, convolute in vernation. Flowers usually appearing before the 

 leaves, from lateral buds ; the pedicels umbellate-fascicled. — Plum. 



