MALVACEAE. 267 



1. Malvastnim coromandelianum (L.) Garcke, Bonplandia 5: 297. 1857. 



Malva coromandeliana L. Sp. PI. 687. 1753, 



Malvastrum tricuspidatum A. Gray, PL Wright. 1 : 10. 1852. 



Malvastrum americanum Torrey, Bot. Mex. Bound. Surv. 38. 1859. 



Perennial, strigose-pubescent, branched, 3-10 dm. high. Leaves ovate to 

 oblong-ovate, slender-petioled, 2-8 cm. long, acute, sharply serrate, the hairs 

 of the upper surfaces mostly simple; flowers mostly solitary in the axils, on 

 peduncles shorter than the petioles; involucels of 3 small bractlets; calyx-lobes 

 triangular, acute, longer than its tube ; petals pale yellow, somewhat longer than 

 the calyx, obliquely truncate; carpels 8-12, hirsute on top, with an awn near 

 the inflexed apex and 2 beaks on the back. 



Waste grounds and cultivated soils, Great Bahama, North Bimini, Eleuthera, 

 Watling's : — Bermuda ; Florida to Texas : the West Indies ; continental tropical 

 America ; tropical and subtropical Asia. False Mallow. 



2. Malvastnim corchorifolium (Desr.) Britton; Small, Fl. Miami 119. 1913. 



Malva corchorifoUa Desr. in Lam. Encycl. 3: 755. 1791. 

 Malvastrum Bugelii S. Wats. Proc. Am. Acad. 17: 367. 1882. 



Similar to the preceding species, about as pubescent and the leaves much 

 alike in both, the hairs of the upper surfaces mostly forked. Flowers mostly 

 in terminal heads 1-2 cm. long, or some of them solitary in the axils ; calyx- 

 lobes triangular-ovate, acuminate; petals orange or yellow, longer than the 

 calyx; carpels about 10 or fewer, hispidulous, beakless, or sometimes with a 

 blunt protuberance. 



Waste and cultivated lands. Abaco, New Providence, Eleuthera, Cat Island, 

 Fortune Island, Acklin's, Grand Turk. Inagua and Anguilla Isles : — Florida ; Cuba ; 

 Virgin Gorda ; Jamaica. Rcgel's False Mailow. 



5. SIDA L. Sp. PI. 683. 1753. ' 



Herbs, with serrate crenate or lobed leaves, and perfect flowers. Bractlets 

 of the involucels none. Calyx 5-toothed or 5-cleft. Cavities of the ovary 5-co, 

 1-ovuled; style-branches of the same number, stigmatie at the summit. Carpels 

 indehiscent, or at length 2-valved at the apex. Seed pendulous. [Greek, used 

 by Theophrastus.] About 75 species, natives of the warmer parts of America, 

 Asia, Africa and Australasia. Type species: Sida alnifolia L. 



Flowers capitate, congested at the apices of the branches, their peduncles adnate to 



the long-ciliate bracts. 1. S. ciliaris. 



Flowers solitary or variously clustered, not adnate to the floral 

 bracts. 

 Calyx angular. 



Leaves narrowed or rounded at the base. 



Leaves short-petioled. 2. S. carpinifolia. 



Leaves long-petioled. 3, S. spinosa. 



Leaves distinctly cordate at the base. 



Plants prostrate, creeping, leaves sub-orbicular. 4. iS?. hcdcracfolia. 



Plants erect or diffuse, leaves ovate to ovate-lanceolato. 

 Flowers glomerate, very short-pedicelled ; plants 



with stinging hairs. 5. S. urcna. 



Flowers solitary or few together, slender-pedicelled. 



Leaves acuminate, plants erect. <>. «^. (jJutinosa. 



Leaves obtuse or merely acutish, plants diffuse. 7. .*>«'. procumbena. 

 Calyx-tube terete. 8- S. acuminuta. 



1, Sida ciliaris L. Syst. ed. 10, 1145. 1759. 



Perennial, strigose-pubescent, diffusely branched at the base from a deep 

 woody root, the slender branches prostrate or ascending, 1-3 dm. long. Leaves 



