746 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



21. Triumfetta galeottiana Turcz. Bull. Soc. Nat. Moscou 32': 260. 1859. 

 ? Triumfetta brachypetala Turcz. Bull. Soc. Nat. Moscou 31*: 227. 1858. 

 Jalisco to Veracruz and Chiapas ; Turczaninow gives the type locality as 



" Oaxaca, alt. 3,000 ped.," but a specimen of the original collection ( Oaleotti 

 4153) in the National Herbarium is labeled as from " Bois de Zacuapan," Vera- 

 cruz, at the same altitude. 



Shrub, 1 to 2.5 meters high ; leaves ovate to rounded-ovate, long-acuminate, 

 rounded or subcordate at base, serrate, usually densely tomentose beneath ; 

 sepals 3 to 5 cm. long ; fruit 6 to 8 mm. in diameter, usually glabrous, covered 

 with slender spines. 



22. Triumfetta discolor Rose, Contr. U. S. Nat. Herb. 12: 285. 1909. 

 Durango ; type collected between Pedro Paulo and San Blascito. 



Shrub ; leaves rounded, 2 to 7 cm. long, obtuse or rounded at apex, sub- 

 cordate at base, serrate, gray-tomentose beneath, sometimes shallowly trilobate ; 

 sepals about 18 mm. long; petals linear-oblanceolate. 



DOUBTFUL SPECIES. 



Triumfetta oligacantha Hochr. Ann. Cons. Jard. GenSve 18-19: 106. 1914. 

 Based upon a specimen from either Peru or Mexico ; related to T. semitriloba. 



Triumfetta orizabae Turcz. Bull. Soc. Nat. Moscou 32*: 261. 1859. Type 

 from Orizaba. 



Triumfetta oxyphylla DC. Prodr. 1: 508. 1824. Described from Mexico. 



Triumfetta paniculata Hook. & Arn. Bot. Beechey Voy. 279. 1836-39. Type 

 from Jalisco. 



95. MALVACEAE. Mallow Family. 



Shrubs or trees, or more often herbs, the pubescence usually of stellate 

 hairs; leaves alternate, commonly palmate-nerved, simple or compound, stipu- 

 late; flowers axillary, racemose, or paniculate, usually perfect, the calyx often 

 subtended by bractlets; sepals 5, more or less united; petals 5; stamens 

 numerous, united to form a column ; fruit usually dry, composed of several 

 carpels, these verticillate about an axis, dehiscent or indehiscent, or the fruit 

 sometimes capsular. 



The plants of this family have mucilaginous juice. Many of them are em- 

 ployed in domestic medicine because of their emollient properties. 



Fruit a loculicidal capsule ; calyx subtended by bractlets. 

 Bractlets at the base of the calyx 5 or more. 



Cells of the fruit 1-ovulate 16. KOSTELETZKYA. 



Cells of the fruit containing 2 or more ovules 17. HIBISCUS. 



Bractlets 3. 



Capsule usually 5-celled 18. GOSSYPIUM. 



Capsule 3-celled. 



Petals white, turning purplish ; leaves usually lobed ; bractlets longer than 



the calyx 19. THURBERIA. 



Petals purple ; leaves entire ; bractlets shorter than the calyx. 



20. EHIOXYLUM. 

 Fruit not capsular, the cari^els separating from each other and from the axis 

 at maturity ; or the fruit rarely capsular, but bractlets then absent. 

 Style branches (10) twice as many as the carpels. 



Carpels rough, often spine-armed, usually dry 14. MALACHE. 



Carpels smooth, unarmed, fleshy 15. MALVAVISCUS. 



Style branches of the same number as the carpels. 

 Bractlets present at the base of the calyx. 



Seeds 2 or more in each cell of the fruit 11. SPHAERALCEA. 



