774 MALVACEAE 
often red, inequilateral, each with a lateral auricle. Ovary 5-celled. Styles 2-parted, the 
branches thus 10. Stigmas capitate. Ovules solitary in each cavity. Fruit berry-like, by 
the union of the fleshy carpels. 
1. Malvaviscus Drummóndii T. & G. Perennial, tomentulose. Stems erect, 8-19 
dm. tall, simple or more or less widely branched : leaf-blades suborbicular in outline, angu- 
lately 3-lobed, crenate, cordate, dark green above; petioles shorter then the blades: 
peduncles axillary, about as long as the subtending petioles: bractlets of the involucels 
narrowly spatulate : calyx about as long as the bractlets; lobes ovate, shorter than the 
tube: petals vermilion, 2.5 cm. long: fruit berry-like, 1 cm. in diameter, red, subglobose : 
carpels finally separable. 
In sandy soil, Florida to Texas and Mexico. Spring to fall. 
13. HIBISCUS L. 
Perennial herbs, shrubs or trees, various in habit. Leaves alternate: blades entire, 
lobed or parted : petioles commonly subtended by stipules. Flowers perfect, showy, on 
short axillary peduncles. Involucel of several, or rarely 3-5 distinct or united bractlets. 
Sepals 5, more or less united. Petals 5, of various colors, often blotched. Ovary 5-celled, 
sessile : styles 5, usually spreading: stigmas capitate or peltate. Ovules 2-many in each 
cavity. Capsules oblong to globose, 5-celled, loculicidally 5-valved. Seeds of various 
shapes, glabrous or pubescent. Rose MALLOW. 
Bractlets of the involucels distinct. 
Calyx persistent, not spathe-like. 
Corolla cylindric, or only the tips of the petals slightly spreading: seeds woolly. 
l. H. tubiflorus. 
Corolla with more or less widely spreading petals: seeds glabrous or hirsute. 
Calyx fitting closely to the capsules. : 
Sepals united only at the base, spreading. 2. H. cardiophyllus. 
Sepals partially united into a campanulate tube. ^ 
Shrub or small tree. 3. H. Syriacus. 
Herbs, bey perennial. 
Bractlets oo“ or forked at the apex, often with 2 lateral seg- 
ments. 
Foliage finely tomentose. 4. H. furcellatus. 
Foliage híspidulous. 5. H. aculeatus. 
Bractlets entire, not dilated at the apex. 
Foliage variously pubescent. 
Leaf-blades strigose or with plush-like pubescence above : : 
bractlets conspicuously ciliate. 6. H. lasiocarpus. 
Leaf-blades glabrate or densely velvety above: bractlets 
merely pubescent. 3 
Leaf-blades about as broad as long. strongly lobed. 7. H. grandiforus. 
ms erc mE longer than eee, nee y toothed, 
- es glabrous or nearly so above: capsules 
labris 7 re 8. H. Moscheutos. 
Leaf-blades densely velvety above: capsules hispid. . 9. H. incanus. 
Foliage glabrous. i 
Leaf-blades parted into 5-7 segments. 10. H. coccineus. 
Leaf-blades merely toothed or lobed. * ifoli 
Calyx-lobes longer than the tube. 11. H. integrifolius, 
: Calyx lobes shorter than the tube. 12. H. militaris. 
Calyx inflated and bladder-like, enclosing the smaller capsule. 13. H. Trionum. 
rx spathe-like, splitting on one side and deciduous. 
ractlets oblong or oblong-lanceolate. 14. H. Manihot. 
Bractlets narrowly linear. 15. H. ei : 
Bractlets of the involucels united into a cup with 8-10 lobes. 16. H. tiliaceus. 
. 1. Hibiscus tubiflòrus DC. A branching shrub 3-18 dm. tall, with stellular- 
hirsute foliage. Leaf-blades triangular-ovate or angulately 3-lobed, 1-4 cm. long, yr 
or acutish, serrate-dentate, truncate or cordate at the base; petioles shorter than ud 
blades : peduncles as long as the subtending petioles or longer, recurving: bractlets As e 
involucel about 10, linear or nearly so, 7-9 mm. long, hispid : calyx slightly longer than 
the bractlets ; lobes triangular or triangular-lanceolate, acuminate, about as long as t 
tube: corolla crimson, 2-2.5 em. long, cylindric, or the petals with slightly spreading 
tips: capsule over 1 cm. long: seeds woolly. 
In woods, Florida Keys, also in Mexico and the West Indies. Throughout the year. 
2. Hibiscus cardiophyllus A. Gray. Perennial from a woody base, rough sad 
tomentose. Stems 3-8 dm. tall, usually branched: leaf-blades ovate to suborbica d 
more or less constricted above the middle, thus somewhat 3-lobed, 3-8 cm. long, et fi va 
acutish, dentate, prominently nerved beneath, cordate ; petioles about as iong the pe 
or shorter : bractlets of the involucel about 10, 1.5 cm. long, with lanceolate blades : : 
surpassing the involucel ; lobes lanceolate, sometimes broadly so, acute, 3-ribbed an 
