1130 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



3. Styrax glabrescens Benth. PI. Hartw. 66. 1839. 



Veracruz, Hidalgo, Oaxaca, and Chiapas; type from Llano Verde, Oaxaca. 

 Guatemala and Costa Rica. 



Tree, 6 to 12 meters high ; leaves slender-petiolate, elliptic-oblong to elliptic 

 or ovate, 7 to 17 cm. long, abruptly short-acuminate, acute to rounded at 

 base, thin, glabrous or nearly so ; inflorescence lax, few-flowered, the flowers 

 1.5 to 3 cm. long; calyx 5 to 7 mm. long, stellate-pilose with rufous or yel- 

 lowish hairs ; fruit about 1 cm. in diameter. "Azahar del monte " ( Vera- 

 cruz) ; " bracino " (Costa Rica). 



4. Styrax arg-enteus Presl, Rel. Haenk. 2: 60. 1836. 

 Sinaloa to Chiapas ; type from Acapulco. Central America. 



Tree, 5 to 6 meters high, the trunk 30 cm. in diameter ; leaves petiolate, 

 oblong or lance-oblong, 7 to 14 cm. long, short-acuminate, rounded or obtuse 

 at base, usually coriaceous; racemes axillary, few-flowered, the flowers 12 

 to 20 mm. long ; calyx 4 to 5 mm. long, truncate ; fruit 10 to 13 mm. in di- 

 ameter. "Ruin" (Sinaloa); " capulln," " hoja de jab6n " (Oaxaca); " chila- 

 cuate" (Michoacrin, Guerrero) ; " reslno," " resina " (Nicaragua, Costa Rica) ; 

 "bracino" (Costa Rica) ; " estoraque " (Costa Rica, El Salvador) ; "estorac" 

 (El Salvador); " sahumerio (Panama). 



In Costa Rica and probably elsewhere the gum is burned as incense in the 

 churches. It is said that the bark is employed in El Salvador for stupefying 

 fish. 



5. Styrax ramirezii Greenm. Proc. Amer. Acad. 34: 20. 1899. 

 Styrax micrantktis Perkins, Bot. Jahrb. Engler 31: 480. 1902. 

 Styrax orizabensis Perkins, Repert. Sp. Nov. Fedde 2: 25. 1906. 

 Michoacfln, Morelos, Veracruz, and Oaxaca ; type from Cuernavaca, Mo- 



relos. 



Tree, 9 to 13 meters high ; leaves petiolate, oblong or lance-oblong, 10 ta 

 18 cm. long, acute or short-acuminate, obtuse or rounded at base, coriaceous- 

 entire, glabrous above ; calyx 4 to mm. long, truncate ; fruit 1 to 1.5 cm. long. 

 "Chilacuate " ( Morelos ) , 



6. Styrax cyathocalyx Perkins, Repert. Sp. Nov. Fedde 2: 24. 1906. 

 Type from Rincon, Oaxaca, altitude 900 to 1,200 meters. 



Leaves petiolate, oblong or lance-oblong, 10 to 14 cm. long, long-acuminate, 

 obtuse at base, coriaceous, glabrous and lustrous above; calyx truncate. 



7. Styrax polyneurus Perkins, Bot. Gaz. 35: 5. 1904. 

 Chiapas. Costa Rica, the type from Copej'. 



Tree ; leaves petiolate, lanceolate or obovate-oblong, 8 to 12 cm. long, short- 

 acuminate, cuneate at base, thin, entire, glabrate above ; calyx truncate ; fruit 

 7 mm. long. 



A collection from San Luis PotosI (Purpus 5317), referred to S. polyneurus 

 by Brandegee, probably represents an undescribed species, but the material 

 is in fruit and furnishes no characters by which it may be segregated. 



137. SYMPLOCACEAE. Sweetleaf Family. 



Reference: Brand in Engl. Pflanzenreich IV. 242. 1901. 

 The family consists of a single genus. 



1. SYMPLOCOS Jacq. Enum. PL Carib. 5. 1760. 



Shrubs or trees; leaves alternate, sessile or petiolate, estipulate, entire or 

 serrate, usually persistent ; flowers small, perfect, mostly axillary, solitary, 

 spicate, racemose, or fasciculate; sepals 5, connate, persistent; petals 3 to 11, 



