804 



TREES OF NORTH AMERICA 



A tree, 10-20 high, with a short often crooked trunk, pubescent or glabrous gray branch- 

 lets, and winter-buds and bark like those of Vaccinium arbor f urn with which it often grows. 



Fig. 717 



Distribution. Tunnel Hill, Johnson County, Illinois, southern Missouri to eastern 

 Oklahoma (Sapulpa, Creek County) and through Arkansas to western Louisiana (near 

 Shreveport, Rapides Parish) and eastern Texas to Milam County. 



LIV. THEOPHRASTACE^E. ' 



Trees or shrubs, with watery juice, and entire coriaceous persistent leaves. Flowers 

 perfect, regular; calyx campanulate, with 5 sepals imbricated in the bud; corolla 5-lobed, 

 the lobes imbricated in the bud, with 5 staminodia attached below the sinuses; stamens 5, 

 attached to the base of the corolla-tube, opposite the lobes; ovary 1-celled, with a simple 

 style and a slightly 5-lobed stigma; ovules peltate, numerous, attached to a central fleshy 

 placenta, amphitropous. Fruit baccate, many-seeded. Seeds immersed in the thickened 

 placenta filling the cavity of the fruit; seed-coat membranaceous; embryo surrounded by 

 thick cartilaginous albumen. 



A tropical American family of four genera with one species reaching the shores of south- 

 ern Florida. 



1. JACQUINIA Jacq. 



Trees or shrubs, with terete or slightly many-angled branchlets, without a terminal bud, 

 and fibrous roots. Leaves often punctate with pellucid dark glands. Flowers on slender 

 ebracteolate pedicels from the axils of minute ovate acute persistent bracts, in terminal or 

 axillary clusters; calyx slightly ciliate on the margins, rounded at apex, persistent under the 

 fruit; corolla hypogynous, the lobes obtuse and spreading, furnished with 5 petal-like ovate 

 obtuse spreading staminodia; stamens inserted on the corolla opposite its lobes near the 

 base of the short tube; filaments flattened, broad at base; anthers oblong or ovoid, attached 

 on the back above the base, extrorse, 2-celled, the cells opening longitudinally; ovary ovoid. 

 Fruit ovoid or subglobose, crowned by the remnants of the persistent style, with a thin 

 crustaceous outer coat, inclosing the thick enlarged mucilaginous placenta. Seeds oblong; 

 seed-coat punctate; embryo eccentric; cotyledons ovate, shorter than the elongated inferior 

 radicle turned toward the broad ventral hilum. 



Jacquinia with five or six species is confined to tropical America, with one species reach- 

 ing southern Florida. 



The generic name is in honor of Nicholas Joseph Jacquin (1728-1818) the distinguished 

 Austrian botanist. 



1. Jacquinia keyensis Metz. Joe Wood. Sea Myrtle. 



Leaves subverticillate, alternate or sometimes opposite, crowded near the end of the 

 branches, cuneate-spatulate or oblong-obovate, rounded or emarginate or often apiculate 



