ORDER XXXIII. MALVACE^. 259 



Genus IV.— MALVAVIS'CUS. Dill. 15—12. 

 (From mnlva, mallows, and vihcus, glue.) 



Cahjx deeply 5-clet't, siinoiinded by a many-leaved involucel. 

 PctaU erect, convolute. Stir/mas 10. Carpels 5, baccate, 1- 

 seeded, united or distinct. 



1. M. florida'nus, (Nutt.) A small shrub, hirsute. Leaves cordate- 

 ovate, hispid, crenately serrate, 1 — 2 inches long. Peduncles axillary ; 

 involucel 8 — 9-leaved. i<^/c>M,'ers nedding, solitary. — Scarlet. If. East 

 Florida. 



Genus V.— GOSSYP'IUM. L. 15—12. 

 (From an Arabic word which signifies soft.) 



Calyx cup-shaped, obtusely 5-toothed, surrounded by a 3- 

 leaved involucel, cordate, deeply toothed or incised. Stigmas 

 3 — 5. Capsule 3 — 5-celled ; dehiscence loculicidal, many- 

 seeded. Seeds imbedded in the cotton. Cotton. 



1. G. herb.a'ceum, (L.) Stem smooth, pubescent. Leaves usually 3 — 

 5-Iobt'.i, jiube.«scent ; lobes sometimes rounded, acuminate, mucronate. 

 Flowerit ytli()wi.<h-white, turning to led when old. — Native of Iiulia, 

 Africa, and S^-ria. Common Cotton. 



2. G. Barbaden'se, (L.) Leaves 3 — 5-Iobed, with o glands beneath. 

 Flowers large, with a purple spot at the base of each petal. — Yellowish, 

 finally turniug red. Native of Barb;idoes. Sea-hland Cotton. 



Fourteen species of cotton are described by authors, but many of them probably 

 are only varieties. 



Genus VI.— ABU'TILON. Dill. 15— 12. {Sida Abut Hon of Ell.) 

 (The Greek for the Mulberry, applied to this from the resemblance of its leaves.) 



Calyx 5-cleft, naked. Style multifid. Ovary 5 or many- 

 celled, 3 — 5 seeds in a cell. 



1. A. Avicen'NuE. (Gaert.) Stem 2 — 4 feet, with spreading branches. 

 Leaves broad-cordate, velvety, tomentose, acuminate, crenately toothed. 

 Carpels generally 15, 3-seeded, birostrate, hairy. Peduncles solitary or 

 in pairs, 1 — many-flowered. — Orange-yellow. 0. Introduced. Road- 

 sides. 



Genus VII.— SFDA. L. 15—12. 

 (The Greek name of a plant resembling the Althaea.) 



Calyx 5-cleft, angled, without an involucel. Ovary 5 or 

 ipany-celled, with a single ovule in each cell. Capsules con- 

 sisting of 5 or more carpels, commonly 2-valved. 



1. S. SPiNo'sA, (L.) Stem branching, finely pubescent. Leaves alter- 

 nate, cord.ite-ova., or broad-lanceolate, serrate. Stipules setaceous, 

 with a spinose tubercle at the base. Floivers axillary, solitary, en short 

 peduncles. Calyx |)ubescont. Petals obovate. Stiyma 5-cleft. Cur- 

 pels 5, easily separated when mature, 2-lobed. — Yelhjw. f^. ^lay — 

 July. Sandy soils. 1 — 2 feet. 



