DODONAEACEAE 737 



shining above, dull beneath, reticulated on both sides, entire, alternate at the base, sessile 

 or nearly so : cymes contracted into several-flowered clusters : pedicels 3-10 mm. long : 

 sepals orbicular-ovate, obtuse : corolla yellowish green, 4-6 mm. broad : petals oblong or 

 oval, obtuse : stamens shorter than the petals : drupes nearly oval or globular, 5 mm. long, 

 bright scarlet, slightly grooved and warty, apiculate. 



In sand, southern peninsular Florida, chiefly on the islands and Keys. Also in the West Indies. 

 YELLOWWOOD. BOXWOOD. 



8. MORTONIA A. Gray. 



Shrubs, with erect, unarmed stems. Leaves alternate, evergreen : blades thick, sessile. 

 Inflorescence terminal, of spike-like racemes. Flowers perfect. Sepals 5, with white- 

 scarious margin. Petals 5, eroded, inserted under the margin of the disk. Stamens 5, 

 inserted in the lobes of the disk. Ovary ovoid, immersed, or free from the disk, im- 

 perfectly 5-celled. Ovules erect, usually 2 in each cavity. Stigma 5-lobed. Fruit cap- 

 sular, indehiscent, slightly grooved, with 1 cavity. Seed solitary, filling the whole cavity. 



1. Mortonia Gr6ggii A. Gray. A low branching shrub, with yellowish green rough 

 twigs. Leaves approximate ; blades linear or linear-spatulate, 1-2 cm. long, mucronate at 

 the apex, entire, narrowed at the base, glabrous at maturity ; petioles 1 mm. long : sepals 

 5, oval, acute, 1 mm. long : petals 5, white, oval, obtuse, 2 mm. long : filaments slender : 

 style long : stigma 5-lobed : capsule oblong, 5 mm. long, the walls thick and firm : seed 

 solitary, erect. [M. effusa Turcz.] 



Southwestern Texas. 



FAMILY 8. HIPPOCRATEACEAE H.B.K. HIPPOCRATEA FAMILY. 



Shrubs or small trees, or vines with more or less twisted branches. Leaves 

 opposite, rather persistent ; blades simple : stipules caducous. Inflorescence 

 axillary, racemose, paniculate or cymose. Flowers perfect, regular, incon- 

 spicuous. Calyx of 5 small persistent imbricated sepals. Disk large, conic, cup- 

 like or spreading. Corolla of 5 sessile imbricated spreading petals inserted be- 

 tween the sepals. Androecium of 3 stamens inserted on the margin of the disk 

 and the ovary. Filaments flattened and dilated at the base. Anthers 2-4-celled, 

 extrorse. Gynoecium of 3 united carpels. Ovary 3-celled, more or less im- 

 mersed in and merged into the disk, but free. Styles united. Stigma simple, 

 or 3-lobed. Ovules few or many, inserted in 1, 2 or 3 rows, anatropous or half- 

 anatropous. Fruit a berry, drupe or capsule of 3 or fewer flattened carpels co- 

 hering at the base. Seeds usually few, flattened, often winged at the base, with 

 a membranous or crustaceous testa. Endosperm wanting. Embryo straight 

 with large, often united cotyledons. 



1. HIPPOCRATEA L. 



Twining shrubs or small trees, with terete branches. Leaves opposite : blades leathery, 

 on petioles which are swollen at the base. Flowers in axillary cymes or panicles. Sepals 

 and petals mostly 5, spreading. Stamens 3, inserted on the disk : filaments flattened and 

 dilated at the base. Ovary 3-celled : stigma 3-lobed. Ovules 2-6 in each cavity, in 2 

 series, ascending. Capsule 3-lobed (lobes sometimes suppressed), flattened, leathery, 

 1-celled, the lobes 2-valved. Seeds flattened, winged below. 



1. Hippocratea ovata Lam. A high -climbing shrub. Stems several m. long, 

 much branched : leaf-blades leathery, oblong or elliptic varying to ovate or obovate, 5-14 

 cm. long, obtuse or apiculate, crenate-serrate, short-petioled : cymes open, rusty pubescent : 

 peduncles 4-8 cm. long : sepals 5 or rarely 4, rounded : corolla 5-6 mm. broad : mature 

 carpels broadly obovate, 2.5-3 cm. long. 



In deep woods, along water, peninsular Florida and the Keys. Also in the West Indies. 



FAMILY 9. DODONAEACEAE H.B.K. DODONAEA FAMILY. 



Shrubs or trees, commonly sticky with a resinous excretion. Leaves alter- 

 nate, without stipules: blades simple. Flowers polygamous or polygamo-dioecious, 

 variously disposed. Sepals 3-5 nearly equal, imbricated, or valvate. Corolla 

 47 



