STANDLEY TKEES AND SHRUBS OF MEXICO. 281 



Petals 6, broad, in 2 series. 



Inner petals valvate 3. A. glabra. 



Inner petals imbricate. 



Leaves witli minute pockets beneath in the axils of the lateral nerves. 



4. A. muricata. 



Leaves without pockets in the axils of the nerves 5. A. purpurea. 



Flowers elongate and more or less triquetrous in bud. 

 Peduncles with clasping leaflike bracts at base ; testa of seeds thick and hard. 



6. A. diversifolia. 

 Peduncles without clasping leatlike bracts at base ; testa thin. 

 Outer petals about 8 mm. long. Fruit 2 to 2.5 cm. in diameter; leaves 



lanceolate , 7. A. palmeri. 



Outer petals 1.8 to 5 cm. long. 

 Leaves rounded or obtuse at apex, oval or rounded, soft-pilose or tomen- 

 tose beneath. 



Outer petals 1.8 to 2.5 cm. long 8. A. cherimola. 



Outer petals 4 to 5 cm. long .9. A. longiflora. 



Leaves acute or acuminate at apex, oblong- lanceolate to elliptic-oval, 

 nearly glabrous beneath, at least in age. Flowers 2 to 3 cm. long. 

 Fruit composed of numerous I'ounded, loosely cohering carpels, the 

 surface very rough, with a glaucous bloom. Leaves mostly lance- 

 olate 10. A. squamosa. 



Fruit smooth or nearly so, the surface often divided into angular areoles 

 by impressed lines. 

 Leaves mostly lanceolate ; fruit with conspicuous areoles, turning red 



when ripe 11. A. reticulata. 



Leaves elliptic-oval; fruit smooth, yellow 12. A. lutescens. 



1. Annona globiflora Schlecht. Linnaea 10: 235. 1836. 

 Annona fruticosa Sesse & Moc. Fl. Mex. ed. 2. 134. 1894. 



Tamaulipas, San Luis Potosi, and Veracruz ; type from Hacienda de la T-a- 

 guna, near Jalapa. 



Shrub, 0.6 to 2 meters high ; leaves oblong or lance-oblong, 4 to 9 cm. long, 

 thin, acute or obtuse, pale beneath ; fruit subglobose, 3 to 4 cm. in diameter, 

 muricate, with scant edible pulp. "Anonilla " (Veracruz); " chirimoya " (Ta- 

 maulipas, San Luis Potosi) ; " anonita de papagayos" (Veracruz). 



2. Annona longipes Safford, Contr. U. S. Nat. Herb. 16: 269. pi. 89. 1913. 

 Known only from the type locality. Lake Catemaco, Veracruz. 



Tree, 10 meters high ; leaves ovate-oval, 9 to 14 cm. long, acute or acuminate ; 

 fruit shaped like a strawberry, 2.5 cm. long, covered with gibbous areoles, 

 tomentose, with scant pulp. 



3. Annona glabra L. Sp. PI. 537. 1753. 

 Annona palvstris L. Sp. PI. ed. 2. 757. 1762. 



Veracruz and Guerrero, in wet soil ; reported from Yucatftn, Tabasco, and 

 Oaxaca. Widely distributed in tropical America ; type from the Bahamas. 



Shrub or tree, sometimes 12 meters high, the trunk as much as 50 cm. in 

 diameter, often swollen or with buttresses at the base, the bark thin, reddish 

 brown ; leaves oval, oblong, or ovate, 6 to 15 cm. long, deep green, acute or 

 acuminate; outer petals yellowish, with a deep red spot near the base; fruit 

 5 to 12 cm. long, ovoid, smooth, yellowish at maturity, with cream-colored 

 pulp; wood brown, soft, weak, its specific gravity about 0.50. " Gorcho " 

 (Guerrero, Tabasco, Yucatftn, Porto Rico); " arbol de corcho " (Veracruz); 

 "palo de corcho" (Yucatan); "mag" (YucatSn. Maya); " cayur," " coraz6n 

 cimarr6n," " guan^bano cimarr6n," "anon" (Porto Rico); " baga," "palo 



