STANDLEY — TKEES AND SHRUBS OF MEXICO. 767 



27. Sida glutinosa Commers. ; Cav, Monad. Diss. 16. pi. 2, f. S. 1785 

 Sida endlicheriana Presl, Rel. Haenk. 2: 111. 1836. 



Sonoru and Durango to Oaxaca. West Indies, Central America, South 

 America, and tropical Asia and Africa. 



Stems herbaceous or suffrutescent, viscid-pilose; leaves ovate-cordate, 2 to 

 7 cm. long, acute or acuminate, crenate or serrate, thin, green; flowers long- 

 pedicellate; petals yellow or white, 3 to 5 mm. long; carpels not beaked. 



28. Sida glabra Mill. Gard. Diet. ed. 8. Sida no. 14. 1768. 

 Sida ulmifolia Cav. Monad. Diss. 1 : 15. pi. 2, f. It. 1785. 

 Sida arguta Swartz, Prodr. Veg. Ind. Occ. 101. 1788. 

 Sida alamosana S. Wats. Proc. Amer. Acad. 26: 133. 1891. 



Sonora to Veracruz and Oaxaca. West Indies, Central America, and 

 Venezuela. 



Stems chiefly herbaceous, sometimes 2 meters high, usually long-pilose; 

 leaves lanceolate, lance-ovate, or ovate-cordate, 3 to 8 cm. long, acuminate, 

 crenate or serrate, thin, green ; flowers long-pedicellate ; petals little exceed- 

 ing the calyx; carpels not beaked. " Escobita dulce " (Porto Rico). 



DOUBTFUL SPECIES. 



Sida brack ystemon DC. Prodr. 1: 459. 1824. Type from Mexico. 



Sida caknea DC. Prodr. 1: 473. 1824. Type from Mexico. 



Sida collina Schlecht. Linnaea 11: 364. 1837. Type from Hacienda de la 

 Laguna, Veracruz. 



Sida costata Schlecht. Linnaea 11: 365. 1837. Type from Hacienda de la 

 Laguna, Veracruz. 



Sida venusta Schlecht. Linnaea 11: 365. 1837. Type from Tlalpujahua. 



11. SPHAERALCEA St. Hil. Fl. Bras. Merid. 1: 209. 1825. 



Shrubs or small trees, 'with stellate pubescence; leaves long-petiolate, shal- 

 lowly or deeply lobate ; flowers large, purplish red, axillary, on long-peduncles ; 

 bractlets 3 ; fruit of numerous carpels, these 2 or 3-seeded, not awned. 



Several herbaceous species of the genus occur in Mexico, and some of the 

 species not listed here may become suffrutescent at times, but they are essen- 

 tially herbaceous. 



Bractlets united below the middle, ovate; flowers 5.5 to 6.5 cm. long. 



1. S. rosea. 

 Bractlets spatulate, distinct ; flowers 4 cm. long or shorter. 



Bractlets equaling the calyx, gradually narrowed below 2. S. crenulata. 



Bractlets shorter than the calyx, abruptly narrowed below into a narrow 

 claw 3. S. umbellata. 



1. Sphaeralcea rosea (DC.) Standi. 



Malva rosea DC. Prodr. 1: 435. 1824. 



Meliphlea vitifolia Zucc. Abh. Akad. Wiss. Munchen 2: 359. pi. 9. 1832-36. 



Malvastrum roaeum Hemsl. Biol. Centr. Amer. Bot. 1: 100. 1879. 



Sphaeralcea vitifolia Hemsl. Biol. Centr. Amer. Bot. 1: 114. 1879. 



Michoac^n to Chiapas. Guatemala. 



Leaves 5 to 18 cm. long, shallowly or deeply lobate, deeply cordate at base, 

 coarsely stellate-tomentose, the lobes acute or acuminate. Irregularly crenate- 

 dentate ; calyx densely stellate-tomentose, 3 to 4 cm. long ; carpels numerous, 

 thin, 2 cm. long. 



