844 CONTRIBUTIONS FBOM THE NATIONAL HERBARIUM. 



Leaves obovate-oblong. broadest above the middle. 



12. C. dolicliophylla. 

 Leaves lanceolate to elliptic, broadest at or below the middle. 

 Leaves mostly elliptic, oblong-elliptic, or ovate-elliptic, usually 2.5 to 



3.5 cm. wide 8. C. nitida. 



Leaves lanceolate or linear-lanceolate, 1 to 2.5 cm. wide. 

 Leaves lanceolate, 6 to 8 cm. long, 1.5 to 2.5 cm. wide. 



9. C. orizabana. 

 Leaves narrowly lanceolate, 6 to 7 cm. long, 1 to 1.4 cm. wide. 



10. C. lindeniana. 

 Leaves densely pilosulous beneath even at maturity. 

 Leaves oblong, of nearly equal width throughout, rounded at apex. 



11. C. pringlei. 



Leaves obovate-oblong or elliptic-obovate, broadest above the middle, 



acute to rounded at apex 12. C. dolichophylla. 



1. Casearia sylvestris Swartz, Fl. Ind. Occ. 2: 752. ISOO. 



Samyda parviflora L. Syst. Nat. ed. 10. 1025. 1759. Not S. parviflora Loefl. 

 1758. 



Casearia parviflora Willd. Sp. PI. 2: 627. 1799. 



Tepic to Veracruz and Oaxaca. West Indies, Central America, and South 

 America. 



Shrub or tree, 3 to 20 meters high, with slender branches ; leaves short- 

 petiolate, lanceolate or lance-oblong, 6 to 10 cm. long, 2 to 3 cm. wide, acuminate, 

 glabrous or nearly so, usually quite entire, thin, densely pellucid-punctate; 

 flowers greenish white, numerous in each umbel, the pedicels 2 to 4 mm. long ; 

 sepals 1.5 to 2 mm. long; stigma 3-lobate; stamens 10; fruit globose-obovoid, 

 3 to 4 mm. long, 2 to 6-seeded. " Guayabillo ' (Oaxaca) ; " comida de culebra " 

 (Nicaragua) ; " cafeillo cimarr6n," "laurel espada " (Porto Rico) ; " sarna de 

 perro " (Cuba, Porto Rico); " rompe-hueso," " sarnilla " (Cuba). 



The wood is said to be hard, compact, heavy, and pale yellow, and to be 

 used in Cuba for carpenter work. 



2. Casearia arguta H. B. K. Nov. Gen. & Sp. 5: 364. 1821. 



Tepic and Jalisco to Oaxaca ; type from La Venta del Exido. Central America 

 and Colombia. 



Shrub or tree, 4 to 5 meters high or larger; leaves short-petiolate, oblong, 

 lance-oblong, or oblong-elliptic, 7 to 15 cm. long, acuminate, sharply serrate, 

 pilosulous beneath or glabrate, sparsely punctate ; flowers greenish white, 

 densely fasciculate, the pedicels 2 to 4 mm. long ; sepals narrow, sometimes 5 

 mm. long ; stamens usually 8 ; stigma entire ; fruit globose, nearly 2 cm. In 

 diameter at maturity. "Palo Maria," " raspa-lengua " (Costa Rica) ; " guaya- 

 billo " (Guatemala). 



3. Casearia javitensis H. B. K. Nov. Gen. & Sp. 5: 366. pi. 479. 1825. 

 Tabasco and Oaxaca. Costa Rica and northern South America. 



Shrub or tree, sometimes 20 meters high ; leaves short-petiolate, oblong or 

 elliptic-oblong, 8 to 20 cm. long, acuminate, coriaceous, glabrous, opaque, very 

 lustrous on both surfaces ; flowers densely fasciculate, the pedicels 3 to 7 mm. 

 long; calyx lobes oblong, 3 to 4 mm. long; stamens 10 to 15; stigma trifid; 

 capsule ovoid, about 1 cm. long, thin-walled. " Pochitoquillo " (Tabasco). 



4. Casearia platypHylla Briq. Ann. Cons. Jard. Geneve 2: 68. 1898. 

 Described from Mexico, the exact locality not known. 



Leaves very broadly ovate, 4 to 5 cm. long and 4 to 4.5 cm. wide, obtuse or 

 acute, undulate or subentire, coriaceous, lustrous above, glabrous or nearly so; 

 pedicels 2 to 3 mm. long ; calyx 4 to 6 mm. long ; stamens 10 ; stigma entire. 



