STANDLEY TREES AND SHRUBS OF MEXICO. 1123 



Pedicels and petioles glabrous. 



Sepals 1.5 mm. long 1. S. gaumeri. 



Sepals 3 mm. long 2. S. tempisque. 



Pedicels and petioles pubescent. 



Leaves whitish, covered on both sides with a dense tomentum, small, mostly 



1.5 to 2 cm. wide 3. S. leucophyllum. 



Leaves green, not tomentose, mostly 4 to 7 cm. wide. 



Petioles elongate, usually half as long as the blades or longer. 



4. S. capiri. 

 Petioles short, a fifth as long as the blades or shorter. 



5. S. ang'ustifoliuin. 



1. Sideroxylon gaumeri Pittier, Contr. U. S. Nat. Herb. 13: 460. f. S6. 1912. 

 Yucatan ; type from Izamal. 



Tree, 30 meters high or less, glabx'ous throughout ; leaves long-petiolate, 

 oblong or oval-oblong, 8 to 14 cm. long, obtuse, rounded or obtuse at base, 

 coriaceous, lustrous ; flowers in dense fascicles on old wood, the pedicels 4 

 to 6 mm. long; fruit ellipsoid, 1-seeded, about 2 cm. long. 



This has been reported from Yucatan as S. mastichodendron Jacq., a West 

 Indian species, to which it is closely related. 



2. Sideroxylon tempisque Pittier, Contr. U. S. Nat. Herb. 13: 461. /. 87, 88. 



1912. 



Chiapas. Central America ; type from Laguna de Santa Tecla, El Salvador. 



Large tree, glabrous throughout ; leaves long-petiolate, oval or elliptic-oblong, 

 7 to 12 cm. long, obtuse or subacute, obtuse or rounded at base, coriaceous ; pedi- 

 cels 5 to 6 mm. long, densely clustered on old wood ; corolla 7 to 8 mm. long ; 

 fruit ovoid or ellipsoid, 3 to 4 cm. long, 1-seeded. "Tempisque" (Guatemala, 

 El Salvador) ; "saquaia" (El Salvador). 



3. Sideroxylon leucophyllum. S. Wats. Proc. Amer. Acad. 24: 59. 1889. 

 Southern Baja California ; type from Los Angeles Bay. 



Shrub or small tree, 1.5 to 2.5 meters high, the trunk sometimes 30 cm. in 

 diameter ; leaves oblong or narrowly oblong, 4 to 7 cm. long, obtuse, short-pe- 

 tiolate; flowers densely clustered in the leaf axils; sepals 4 mm. long, densely 

 white-tomentose ; corolla greenish yellow, 5 mm. long. 



The fruit is not known, and the generic position of the plant is uncertain. 



4. Sideroxylon capiri (A. DC.) Pittier, Contr. U. S. Nat. Herb. 13: 462. 1912. 

 Lucuma capiri A. DC. in DC. Prodr. 8: 173. 1844. 



Sideroxylon mexicanum Hemsl. Biol. Centr. Amer. Bot. 2: 296. 1881. 



Sideroxylon petiolare A. Gray, Proc. Amer. Acad. 22: 434. 1887. 



Achras capiri Sess6 & Moc. PI. Nov. Hisp. ed. 2. 48. 1893. 



Sinaloa and Jalisco to Guerrero; type (according to Sesse and Mocino) 

 from MichoacS,n. 



Large tree, the bark reddish brown or brownish yellow, the branchlets tomen- 

 tulose; petioles often as long as the blades; leaf blades ovate to oval or oblong, 

 7 to 16 cm. long, acute to rounded at apex, rounded or obtuse at base, brown- 

 ish-pubescent when young, in age glabrate; pedicels 10 to 12 mm. long, clus- 

 tered on defoliate branches ; sepals about 4 mm. long ; corolla pale yellow ; 

 fruit ovoid, globose, or ellipsoid, 3 to 3.5 cm. long, containing 1 or more seeds. 

 "Capiri," " capire " (Michoacan, Guerrero); "tempixque," "tempisque" 

 (Michoacdn) ; " huacux " (Michoacan, Tarascan) ; " zapote de ave " (Michoa- 

 cSn, Guerrero, Urbina) ; " tototzapotl " (Nahuatl) ; " cosahuico " (Consatti). 



The fruit is sweet and is eaten either raw or cooked. Birds are said to be 

 fond of it. 



