66 MYRSQTACE^. Jacquinla. 



3. JACQUfNIA, L. (In honor of Nicolas Joseph Jacquin.) — Tropical 

 American trees or slirubs ; with tliick coriaceous entire leaves, and white or yellow 

 flowers in terminal or axillary racemes, corymbs or fascicles. 



- J. armillaris, L. Glabrous : leaves cuneate-spatulate or oboYate-oblong, obtuse or rctuse, 

 sometimes mucrouulate, nearly veinless, the margins somewhat revolute ; tlowers racemose 

 or rather corymbose, white. — Jacq. Amer. 5.3, t. 39 ; Miq. in Fl. Bras. ix. t. 27. — E. Florida 

 and Key West on the coast : perhaps introduced. (W. Ind., S. Amer.) 

 J. pungens, Gray. Shrub 8 to 12 feet high, glabrous, or the branchlets puberulcnt : 

 leaves crowded, very rigid, some imperfectly verticillate, linear-lanceolate, veinless, 

 minutely punctate beneath, with revolute margins, and tipped with a long pungent cusp : 

 flowers few or solitary at the end of the branchlets, short-pedicelled : corolla orange : fruit 

 globose, half to three fourths inch in diameter. — PI. Thurb. in Mem. Am. Acad. v. .325. 

 — Mountains near Ures (Thurher), and elsewhere in Sonora, N. W. Mexico (Palmer); 

 probably reaching the borders of Arizona, but not received from witliin our limits. Related 

 to J. ruscifolia. 



Oedee LXXXIII. SAPOTACE^. 



Shrubs or trees, with perfect flowers, agreeing with the foregoing order in 

 having fertile stamens of the same number as the (proper) lobes of the corolla 

 and opposite them, and inserted on its tube, in the short corolla, undivided style 

 and stigma ; differing in the few-several-celled ovary with solitary anatropous 

 or amphitropous ovules, and a comparatively large seed with a crustaceous or 

 bony testa (containing a large straight embryo with or without albumen), with 

 broad and flat or sometimes fleshy-thickened cotyledons ; and the juice in most is 

 milky. Flowers regular and small, in axillary clusters. Calyx free, of 4 to 7 

 distinct sepals, which are strongly imbricated. Corolla li_ypogynous, 4-7-cleft, 

 and the lobes imbricated in the bud, often with as many or twice as many acces- 

 sory internal lobes or appendages borne on the throat. Staminodia (answering 

 to series of stamens) commonly present, alternate with the true corolla-lobes and 

 sometimes in the form of sterile filaments, or squamiform, or petaloid. Filaments 

 of fertile stamens subulate or filiform, generally short : anthers oftener extrorse ; 

 the cell opening longitudinally. Fruit baccate, commonly by abortion 1-celled 

 and 1-seeded; when several-seeded, the bony seeds are laterally flattened and dis- 

 posed in a ring around a thickened axis. Leaves alternate, simple and entire, 

 pinnately veined, mostly coriaceous : stipules small and caducous or none. Pubes- 

 cence when present silky or tomentose, composed of malpighiaceous or stellate 

 hairs. — Tropical or subtropical, except our species of Bumelin. Fleshy fruit 

 of some edible. Juice of certain trees of the order yields gutta-percha. Seed 

 albuminous in all ours excepting Bumelia. 



# Calyx simple, i. e. of mostly 5 sepals in a single series, but strongly imbricated. 

 -I— No internal appendages to the corolla and no staminodia. 



1. CHRYSOPHYLLXJM. Corolla bearing 5 stamens, otherwise naked within. Ovary 

 5-10-celled. Seeds 1 to 10, attached by an elongated hilum. 



-I— H— Staminodia one in each sinus of the corolla, but no other internal appendages or 

 divisions. 



2. SIDEROXYLON. Staminodia more or less unlike and smaller than the lobes of the 

 corolla. Ovary 2-5-celled. Berry drupe-like, usually 1-seedcd. 



-)—-)— -1— Both staminodia and appendages or accessory lobes of the corolla present and 

 petaloid ; the latter one to each side of tlie proper corolla-lobes (or tlicse 3-parted), 

 therefore geminate in the sinuses outside of the staminodia : flowers white : anthers 



