708 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



The leaves are provided beneath with small shelters (for parasites?) in the 

 axils of the nerves. 



2. Matayba apetala (Macfad.) Radlk. Sitzungsb. Akad. Wiss. Miinchen 9: 

 535. 1879. 

 Cupanda apetala Macfad. Fl. Jam. 1: 162. 1837. 

 Veracruz. Ruatan Island; Cuba and Jamaica (type locality). 

 Tree, sometimes 12 meters high; leaflets 4 to 8, oblong or elliptic-oblong, 5 

 to 10 cm. long, usualy obtuse-acuminate, glabrous ; panicles equaling or shorter 

 than the leaves, puberulent ; capsule stipitate, 1 to 1.5 cm. broad. " Doncella " 

 (Porto Rico). 



13. THOUINIDIUM Radlk. Sitzungsb. Akad. Wiss. Miinchen 8: 267. 1878. 



Erect shrubs or trees ; leaves even-pinnate, the leaflets coriaceous, entire or 

 serrate ; flowers small, regular, in terminal panicles ; sepals and petals each 5 ; 

 stamens 8 or 10 ; fruit of 2 or 3 laterally compressed, 1-seeded samaras. 



Leaflets 6 to 14, serrate, acuminate, glabrous or nearly so 1. T. decandrum. 



Leaflets 2 or 4, entire, rounded at apex velvety-pilose beneath 2. T. insigne. 



1. Thouinidium decandrum (Humb. & Bonpl.) Radlk. Sitzungsb. Akad. Wiss. 



Miinchen 8: 284. 1878. 



Thouinia decandra Humb. & Bonpl. PI. Aequin. 1 : 198. pi. 56. 1808. 



Thouinia riparia T. S. Brandeg. Univ. Calif. Publ. Bot. 6: 186. 1915. 



Sinaloa to Oaxaca ; type from Acapulco, Guerrero. Guatemala to Nicaragua. 



Slender tree, 4.5 to 9 meters high ; bark smooth, gray ; leaflets coriaceous, 

 linear-lanceolate, 6 to 12 cm. long, often subfalcate, finely reticulate-veined ; 

 flowers white, about 3 mm. long, in large broad panicles ; samaras about 4 cm. 

 long, glabrous. " Charapo " (Michoaeau, Guerrero); " panalillo " (Sinaloa). 



2. Thouinidium insig'ne (T. S. Brandeg.) Standi. 



Thouinia insignis T. S. Brandeg. Univ. Calif. Publ. Bot. 3 : 384. 1909. 



Known only from the type locality, Santa Lucia, Puebla. 



Shrub or small tree, 4 to 5 meters high; leaflets oblong, 5 to 10 cm. long, 

 coriaceous ; panicles thyrsiform, 6 to 15 cm. long ; petals yellowish white, 6 mm. 

 long; samaras about 4.5 cm. long and 2 cm. wide, the wing shorter than the 

 body. 



14. TALISIA Aubl. PI. Guian. 1 : 349. 1775. 



1. Talisia olivaeformis (H. B. K.) Radlk. Sitzungsb. Akad. Wiss. Miinchen 8: 

 342. 1878. 



Melicocca olivaeformis H. B. K. Nov. Gen. & Sp. 5: 130. 1821. 



Chiapas and Yucatan. Colombia ; type from Turbaco. 



Tree, IS meters high ; leaves persistent ; leaflets 4, elliptic, 4 to 15 cm. long, 

 acute or obtuse, glabrous ; flowers paniculate, puberulent ; sepals 5 ; petals 5 ; 

 stamens 8 ; fruit elliptic, 1-celled, about 2 cm. long, pubescent. " Guayo " 

 (Yucatan) ; " uayum " (Yucatan, Maya) ; " mamon de mico " (Colombia). 



The fruit is edible. 



15. SAPINDTJS L. Sp. PI. 367. 1753. 



1. Sapindus saponaria L. Sp. PI. 367. 1753. 

 Sapindus marginatus Willd. Enum. PI. 432. 1809. 

 Sapindus inaequalis DC. Prodr. 1: 608. 1824. 



Sapindus drimvmondii Hook. & Arn. Bot. Beechey Voy. 281. 1836-39, 

 Sapindus amolli Sess6 & Moc. PI. Nov. Hisp. 60. 1887. 



