MALVACEAE. 267 



1. Malvastrum coromandelianum (L.) Gareke, Bonplandia 5: 297. 1857. 



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



Malvastrum tricuspidatum A. Gray, PI. Wright. 1: 16. 1852. 



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



Perennial, strigose-pubesoent, 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. Malvastrum corchorifdlium (Desr.) Britton; (Small, El. Miami 119. 1913. 



Malva corohorifolia Desr. in Lam. Eneycl. 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, Aeklin's, Grand Turk, Inagua and Anguilla Isles : — Florida ; Cuba ; 

 Virgin Gorda ; Jamaica. Btjoel's False Mallow. 



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



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

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

 1-ovuled; style-branches of the same number, stigma,tiG 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 Aoastralasia. Type species: Sida alnifolia L. 



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



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



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. carpinifoUa. 



Leaves long-petioled. 3. S. spinosa. 



Leaves distinctly cordate at the base. 



Plants prostrate, creeping, leaves sub-orbicular. 4. S. hederaefolia. 



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

 Flowers glomerate, very short-pedicelled ; plants 



with stinging hairs. 5. S. urcns. 



Flowers solitary or few together, slender-pedicelled. 



Leaves acuminate, plants erect. 6. B'. glutinosa. 



Leaves obtuse or merely acutish, plants diffuse. 7. S. proeumbena. 

 Calyx-tube terete. 8. S. acuminata. 



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 



