OLACACE^. (XIMENIA FAMILY.) 61 



2. STUARTIA, Catesb. 

 Sepals 5-6, silky, 1 - 2-bracted. Petals 5-6, obovate, crenulate, silky. Sta- 

 mens united into a ring at the base, and adnate to the base of the petals. Ovary 

 5-celled, with two anatropous ovules in each cell. Styles 5, distinct or united. 

 Capsule ovoid, woody, 5-valved ; the cells 1 - 2-seeded. — Shrubs, with alternate 

 leaves, and large white or cream-colored flowers on sliort axillary peduncles. 



§ 1. Stuartia. — Styles united : capsule globose : seeds ttot margined. 



1. S. Virginica, C.av. Sepals 5, roundish; petals 5, round-obovate ; 

 leaves oval, tliin, serrulate, finely pubescent. (S. Malachodendron, L.) — Shady 

 woods, Florida to North Carolina, and westward. April and May. — Shrub 8°- 

 12° high. Flowers 2' -3' wide. Stamens purple. 



§ 2. Malachodendron. — Styles separate : capsule ovate, acuminate : seeds 



margined. 



2. S. pentagyna, L'Hcr. Sepals and petals 5 - 6, the latter obovate, with 

 jagged edges ; leaves oval, acute. — Mountains of Georgia and North Carolina. 

 May -July. — Shrub similar to the preceding, the leaves and flowers rather 

 larger, and longer stamens. 



Order 2G. OLACACE^E. (XimexXia Family.) 



Trees or shrubs, with alternate entire petioled and exstipulate leaves, 

 and regular hypogynous perfect or polygamous flowers, in axillary ra- 

 cemes or corymbs. — Calyx truncate or 4 - 5-toothed, persistent. Petals 

 4-5, distinct or partly united, valvate in the bud. Stamens mostly twice 

 as many as the petals, and inserted into their bases: anthers introrse. 

 Ovary 1 - 4-celled. Ovules few, anatropous. Style single, filiform. Fruit 

 drupaceous, often surrounded with the enlarged calyx, 1-celled, 1-seeded. 

 Embryo straight in the axis of fleshy albumen. 



1. XIMENIA, Plum. 



Calyx small, 4-toothed. Petals 4, united at the base, villous within. Sta- 

 mens 8. Ovary 4-cellcd. the cells .3-4-ovuled. Drupe baccate; not enclosed 

 in the calyx.— Thorny trees or shrubs. Leaves coriaceous. Flowers axillary, 

 single or corymbose. 



1. X. Americana, L. Smooth; leaves 2-3 together, oblong, obtuse, 

 short-petioled ; peduncles 2 -4-flowered, shorter than the leaves; petals thick, 

 lanceolate, spreading above, rusty-hairy within. — Key West. — Thorns stout, 

 ^' long. Leaves 2' long. Flowers small, yellow. Drupe yellow, roundish, as 

 large as a plum. Nut white, globose. 



Order 27. AURANTIACE7E. (Orange Family.) 



The Orange, Lemon, and Lime (species of Citrus, Z.) are com- 

 monly cultivated in the warmer parts of the Southern States, and the 

 6 



