BUETTNEEIACEAE. 93 



V * 9. THESPESIA Soland. Shrubs or trees, resembling species of Hibiscus. 

 Leaf-blades angulate-lobed or entire. Involucel of 3-5 narrow deciduous 

 bractlets. Sepals 5, partially or wholly united. Petals 5, showy. Carpels 

 united into a mostly indehiscent capsule. 



> 1. T. populnea (L.) Soland. Shrub or low tree: leaf -blades ovate, 5-12 cm. 

 long: calyx cup-like: petals 5-7 cm. long, yellow and purple: capsules de- 

 pressed, 3-4.5 cm. broad. — Coastal hammocks, L. keys. Nat. of the Old "World 

 Tropics. — [E. K.] — (Ber., Bah., Cuba, Ant.) — Seaside-mahoe. 



10. CEINFUEGOSIA Cav. Shrubs or woody herbs, resembling species 

 of Hibiscus. Leaf-blades entire or lobed. Involucels of 3-many bractlets. 

 Sepals 5, united below. Petals 5. Capsule 3-5-valved. 



1. C, heterophylla (Vent.) Garcke. Leaf -blades 1.5-5 cm. long, those of the 

 upper leaves narrow: peduncles clavate: bractlets minute: capsules rarely 

 equalling the calyx. — Hammocks and open places, U. keys. — (Cuba.) 



'' ' '' 11. GOSSYPIUM L. Herbs, shrubs, or trees. Leaf-blades palmately 

 lobed or rarely entire. Involucel of 3 large bracts. Sepals 5, united into a 

 cup-like calyx. Petals 5, usually dark-colored at the base. Capsule 5-valved. 

 — Cotton. 



- 1. G, hlrsutum L. Small tree or shrub, with usually hirsute twigs: leaf -blades 

 4-11 cm. wide, sometimes pubescent, 3-lobed, the lobes ovate to deltoid, as 

 long as the body of the leaf or very short: calyx becoming 1-1.5 cm. wide: 

 corolla creamy- white except the purplish base, becoming pink; petals 3-5 cm. 

 long: capsules ovoid, 2.5-3 cm. long. — Hammocks, U. keys, L. keys, L. S. keys. 

 — {Bah., Cuba, Ant.) — Wild-cottox. 



Family 3. BUETTNERIACEAE. Chocolate Family. 



Shrubs or trees, or herbs, often resembling Malvaceae. Leaves alter- 

 nate : blades simple. Flowers mostly perfect. Calyx of 5, or rarely fewer, 

 sepals. Corolla of 5, or rarely fewer, petals, or wanting. Androeeium of 

 as many stamens as there are sepals, or more. Staminodia sometimes 

 present. Gynoecinm of 5, more or less united carpels, or fewer. Fruit 

 capsular or follicular. 



Petals with flat blades : stigma brush-like. 1. Walthekia. 



Petals with hooded blades : stigmas capitate. 2. Ayenia. 



^ ^ -1, WALTHERIA L. Herbs, shrubs, or trees. Leaf -blades toothed. 

 Involucel of 3 bractlets. Sepals 5, united below. Petals 5, loosely spreading. 

 Stamens 5 : anthers with 2 sacs : staminodia wanting. Ovary 1-celled. Cap- 

 sule smooth, elongate. 



1. W. americana L. Plants 6-12 dm. tall, tomentose: leaf-blades ovate to 

 oblong, 1-5 cm. long: flowers in dense axillary clusters: sepals subulate: 

 petals yellow, slightly longer than the sepals: capsules 2.5-3 mm. long. — 

 Hammocks and pinelands, U. keys, L. keys, L. S. keys. — [E. K.] — {Ber., Bah., 

 Cuba, Ant.) 



'i ? / 2. AYENIA L. Herbs, often partially woody. Leaf -blades toothed. 

 Involucel wanting. Sepals 5, slightly united. Petals 5, converging, the claws 

 involute. Stamens 5; anthers with three parallel sacs. Staminodia present. 

 Ovary 5- celled. Capsule muricate, depressed. 



