54 



MAI.Y.W I..K. (MALLOW FAMILY.) 



Florida, and westward. May - September. — Stems 1° high. Flowers purple, 

 2' wide, on peduncles which arc sometimes 1° long. 



3. C. alC3eoid.es, Gray. Strigose-pubescent ; stems slender (1° high); 

 lower leaves triangular-cordate, incised; the upper 5 - 7-parted, laciniate, the 

 Uppermost divided into linear segments ; flowers corymbose, on slender pedun- 

 cles (rose-color or white) ; involucel none ; carpels obtusely beaked, crested and 

 strongly wrinkled on the back. (Sida alcseoides, Michx.) — Barren oak lands, 

 Tennessee. 



3. MALVASTRUM, Gray. 



Involucel 1 -3-leaved or none. Styles 5-20. Stigmas capitate. Carpels 



beaked or beakless, 1 -seeded. Seed ascending. Embryo curved or annular. 



Radicle inferior. — Herbs or shrubby plants, rough with rigid hairs. Flowers 

 yellow. 



1. M. tricuspidatum, Gray. Perennial or shrubby; stem branching: 

 leaves ovate or oblong-ovate, serrate, acute, petioled; stipules lanceolate; flow- 

 ers in leafy spiked racemes ; petals obliquely truncated ; carpels 10- 12, more or 

 less distinctly 3-toothcd or awncd at the apex. — South Florida. — Steins 1° high. 

 Involucel 3-leaved. 



2. M. angustum, Gray. Annual ; stem erect, branching ; leaves lanceo- 

 late, sparingly serrate, short-petioled ; stipules bristle-like ; flowers' axillary, 

 mostly solitary ; involucel setaceous, 2 -3-leaved; carpels 5, circular, awnless. 

 at length 2-valved. (Sida hispida, Pursh. ? Ell. ?) — South Carolina and west- 

 ward. — Stems o'- [-2' high. Calyx enlarged in fruit. 



4. SIDA, L. 



Involucel none. Caly* angular. Styles 5 -15. Stigmas capitate. Ovaries 

 I -celled. Carpels erect, mostly 2-valved and 2-beaked at the apex, separating 

 at maturity from each other, and from the central axis. Seed resupinate, sus- 

 pended, 3-angled. Embryo curved. Radicle superior. — Branching herbs or 

 shrubs, with chiefly undivided leaves, and small yellow or reddish flowers in 

 their axils. 



* Leaves, at least the lower ones, cordate : carpi Is 5. 



1. S. spinosa, L. Annual, minutely pubescent; branches erect; leaves 

 oblong-ovate, acute, serrate, the slender petioles often with a tubercular spine at 

 the base/the lower ones cordate; stipules setaceous, half as long as the petioles : 



flowers single or clustered, on short erect peduncles ; carpels faintly reticulated, 

 each pointed with two erect subulate spines.— Waste places, Florida and north- 

 ward. July- September. — Stems l°-2° high. Flowers \' wide, yellow. 



2. S. SUpilia, I/Her. "Perennial, tomentose j stems divided at the base 



into slender simple ascending or prostrate branches : leaves all round-cordate, 

 crenate, rounded at the apex, hoary beneath ; the slender petioles spineless at 



tie- base; stipules minute, subulate, deciduous ; tlowers solitary J ihe peduncles 

 half as long as the petioles and rcflexed in fruit ; carpels downy, reticulated, 

 almost beakless, opening irregularly near the membranaceous base. (S.ovata, 

 Can. S. procumbens, Suxurtz.) — South Florida. October. — Stems G'-12' 





