STANDLEY TEEES AND SHRUBS OF MEXICO. 563 



8. Cedrela mexicana M. Roemer, Fam. Nat. Syn. 1 : 137. 1846. 

 Cedrela glaziovii C. DC. in Mart. Fl. Bras. 11': 224. pi. 65. f. 1. 1878. 

 Puebla and Tepic ; type from Papantla, Veracruz. Ranging southward to 



Brazil. 



Tree ; leaflets about 8 pairs, ovate-oblong or oblong, 8 to 11 cm. long, 3 to 3.5 

 cm. wide, somewhat puberulent beneath or glabrate ; petiolules ,5 to 11 mm. long ; 

 flowers 8 mm. long; capsules 2.5 to 4 cm. long. " Cedro " (Veracruz). 



9. Cedrela occidentalis C. DC. & Rose, Contr. U. S. Nat. Herb 5 : 190. 1899. 

 Sinaloa to Oaxaca ; type from Acaponeta, Tepic. 



Tree, up to 20 meters high ; leaflets 6 to 20 pairs, oblong, the larger 9 to 17 

 cm. long, 4 to 5 cm. wide, densely puberulous or glabrate beneath ; petioles 

 mostly 7 to 10 mm. long; capsule 2.5 to 4 cm. long. "Cedro" (Sinaloa). 



10. Cedrela yucatana Blake, Proc. Biol. Soc. Washington 33: 110. 1920. 

 Veracruz to Yucat3,n ; type from Merida, Yucatan. 



Tree, about 12 meters high ; leaflets usually 6 to 8 pairs, ovate to lance- 

 oblong, the larger 6.5 to 13 cm. long, 2 to 4 cm. wide, incurved-puberulous be- 

 neath on whole surface or only on the veins ; petiolules 5 to 10 mm. long ; 

 capsule 3.5 cm. long. 



DOUBTFUL SPECIES. 



Cedkela altp:rnifolia (Mill.) Steud. Nom. Bot. ed. 1. 170. 1821. Cedrus alter- 

 nifolia Mill. Gard. Diet. ed. 8. Cedrus no. 3. 1768. Said to have simple 

 cordate leaves, and probably not a member of the family. Described from 

 Campeche. 



74. MALPIGHIACEAE. Malpighia Family. 



Reference: Small, N. Amer. Fl. 25: 117-171. 1910. 



Shrubs or trees, often scandent ; leaves usually opposite, stipulate, entire, 

 dentate, or lobate, often with glands on the margin or lower surface; flowers 

 usually perfect and showy, variously arranged, cleistogamous flowers often pres- 

 ent ; sepals 5, usually glanduliferous ; petals 5, clawed ; stamens 5 or 10 ; 

 fruit drupaceous, nutlike, capsular, or of 1 to 3 samaras. 



Fruit a capsule or drupe, never bristly ; receptacle flat or depressed. 



Fruit dry, separating into 3 cancels 4. THRYALLIS. 



Fruit a fleshy drupe, not separating. 



Styles wirh slemler acute tips 1. BYRSONIMA. 



Styles with thickened, obtuse or truncate tips. 



Styles distinct 2. MALPIGHIA. 



Styles united 3. BUNCHOSIA. 



Fruit of winged samaras or nutlike, or densely bristly ; receptacle usually 

 pyramidal. 

 Fruit densely bristly. 



Filaments glabrous; stigma bilobate 5. LASIOCARPUS, 



Filaments pubescent; stigma entire 6. ECHINOPTERYS. 



Fruit not bristly, usually of samaras, sometimes nutlike. 

 Samaras with lateral wings, these distinct or united. 

 Anther-bearing stamens 3 or 5. 



Normal flowers Avith 5 fertile stamens and styles___7. ROSANTHUS. 

 Normal flowers with 5 fertile stamens and 1 style, or with 3 fertile 



stamens and 2 or 3 styles 8. GAUDICHAUDIA. 



Anther-bearing stamens 10. 



Lateral samara wings lobed to the base 9. TETRAPTERIS. 



Lateral wings not lobed. 



Stipules borne on the petiole above the base 10. HIRAEA. 



Stipules borne at the base of the petiole 11. MASCAGNIA. 



