STANDLEY TEEES AND SHRUBS OF MEXICO, 1251 



9. AVICENNIA L. Sp. PI. 110. 1753. 



1. Avicennia nitida Jacq. Enum. PI. Carib. 25. 1760. 



In mangrove swamps along both coasts of Mexico, from Baja California 

 and Tamaulipas southward. Widely distributed in tropical America. 



Shrub or tree, sometimes 25 meters high, with a trunk 60 cm. in diameter; 

 bark thin, dark brown, shallowly fissured; leaves opposite, short-petiolate, 

 oblong or oblong-lanceolate, 5 to 10 cm. long, obtuse, acute at base, leathery, 

 entire, green and glabrate above, beneath very minutely and densely white- 

 puberulent; flowers in headlike axillary and terminal cymes; calyx campanu- 

 late, 5-lobate ; corolla white, sericeous, the tube short, the limb 5-lobate, about 

 1 cm. broad; fruit an oblique 2-valvate capsule; wood hard, close-grained, 

 dark brown, its specific gravity about 0.91. "Mangle bianco" (Veracruz, 

 Oaxaca, Tabasco, Yucatan, Porto Rico, Cuba); "mangle prieto " (Cuba, 

 Colombia); "mangle negro" (Cuba); " culumate " (Costa Rica); " chitle de 

 vaca," "mangle hobo" (Porto Rico) ; " palo de sal" (Nicaragua, Costa Rica) ; 

 "manglecito" (Colombia); " puyeque " (Sinaloa) ; "mangle," "mangle 

 salado" (Panama) ; " arbol de sal," " istat^n," "ishtaten " (El Salvador). 



The wood is used for many purposes, and the bark is employed in tanning. 

 The flowers are much sought by bees. The usual English name of the plant 

 is " black mangrove." 



10. CORNUTIA L. Sp. PI. 628. 1753. 



Shrubs or small trees ; leaves opposite, entire or dentate ; flowers small, 

 violet, in cymes, these arranged in large terminal panicles ; calyx small, 

 campanulate, sinuate-dentate, not enlarged in fruit ; corolla tube straight or 

 curved, the limb 4-lobate ; perfect stamens 2, 2 staminodia also present ; fruit 

 a small globose drupe. 



Corolla minutely glandular-puberulent, the tube 2 mm. thick or less. 



1. C. pyram^idata. 

 Corolla villosulous, the tube about 3 mm. thick 2, C. grandifolia, 



1, Cornutia pyramidata L. Sp. PI. 628. 1753. 



Hosta latifolia H. B. K. Nov. Gen. & Sp. 2: 248. 1817. 



Yucatan. West Indies and Central America. 



Large shrub or small tree ; leaves petiolate, ovate to rounded-ovate, 9 to 

 30 cm. long, acuminate, usually long-decurrent at base, densely and minutely 

 pubescent ; panicles thyrsiform, longer than the leaves ; corolla tube slender, 

 about 8 mm. long. "Palo cuadrado " (Panama) ; " hoja de zope," " hoja de 

 jope " (Guatemala, Honduras); "pavilla" (Costa Rica); " cuatro caras " 

 (Panama). 



This species has been reported from elsewhere in Mexico, but the writer 

 has seen only Yucatan specimens. Rovirosa reports it from Tabasco, where 

 it may very likely occur, with the vernacular name " pangage." The plant 

 is said to yield a yellow dye. 



2. Cornutia grandifolia (Schlecht. & Cham.) Schauer in DC. Prodr. 11: 682. 



1847 , 



Hosta grandifolia Schlecht. & Cham. Linnaea 5: 97. 1830. 



Veracruz and Chiapas ; tj'pe from Jalapa, Veracruz. Central America. 



Small tree ; leaves petiolate, ovate to broadly elliptic, 10 to 25 cm. long, acute 

 or acuminate, decurrent at base, often dentate, usually densely pilose beneath ; 

 corolla tube stout, curved, 5 to 6 mm. long. "Pavilla" (Costa Rica). 



