824 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



2. VISMIA Vand. Fl. Lusit. & Bras. 51. 1788. 

 Other species besides the following occur in Central America. 



1. Vismia mexicana Schlecht. Linnaea 10: 245. 1828. 



Veracruz and Oaxaca ; type from Hacienda de la Laguna, Veracruz. Central 

 America. 



Small tree with pyramidal crown ; leaves slender-petiolate, lanceolate or lance- 

 ovate, 8 to 18 cm. long, acute or acuminate, rounded to subacute at base, entire, 

 very finely whitish or brownish-tomentulose beneath, glabrous above ; flowers 

 in terminal panicled cymes, pedicellate; sepals 5, equal, 6 to 7 mm. long; 

 petals 5, 7 mm. long, black-lineate, villous within ; stamens numerous, in 5 

 clusters; fruit baccate, globose-ovoid, 1.5 cm. long, 5-celied, containing many 

 seeds. 



Vismia ferruginea H. B. K. is known in Guatemala as " achiotillo " and 

 " camparaguey." 



103. CLTJBIACEAE. Clusia Family. 



Trees or shrubs, sometimes epiphytic, with resinous, usually yellow juice; 

 leaves opposite, entire, coriaceous, pinnate-nerved, estipulate; flowers usually 

 dioecious or polygamous, axillary or terminal, white, yellow, or pink; sepals 

 2 to 6, imbricate, decussate; petals usually 2 to 4 ; stamens numerous in the 

 staminate flower ; fruit capsular, baccate, or drupaceous. 



Flowers terminal; fruit capsular but usually fleshy 1. CLUSIA. 



Flowers axillary ; fruit baccate or drupaceous. 



Peduncles several-flowered, the flowers racemose 2. CALOPHYLLUM. 



Peduncles 1-flowered. 



Style elongate; calyx closed before anthesis 3 MAMMEA. 



Style very short or none; calyx of imbricate sepals 4 RHEEDIA. 



1. CLUSIA L. Sp. PI. 509. 1753. 



Glabrous trees or shrubs, often epiphytic, with resinous juice; lea vets 

 coriaceous, with numerous slender lateral nerves ; flowers terminal, small or 

 large, dioecious or polygamous ; sepals 4 to 6, orbicular ; petals 4 to 9, oblong 

 or obovate ; stamens numerous in the staminate flower ; ovary 5 to 12-celled ; 

 fruit capsular, coriaceous or fleshy, septieidally dehiscent ; seeds usually numer- 

 ous, arillate. 



Leaves rounded-obovate, less than one and one-half times as long as broad, very 



thick 1. C. rosea. 



Leaves oblanceolate to oval-obovate, usually fully twice as long as broad, 

 thinner. 



Petioles about 5 cm. long 2. C. ovigera. 



Petioles 0.5 to 3 cm. long. 



Staminate flowers 3.5 to 4 cm. broad 3. C. orizabae. 



Staminate flowers less than 3 cm. broad. 



Petioles very stout, marginate to base ; leaves broadly rounded at apex. 



4. C. salvinii. 

 Petioles comparatively slender, not marginate ; leaves rounded to acute 

 at apex. 

 Leaves rounded at apex. 



Fruit about 12-celled; leaves mostly 8 to 10 cm 5. C. fl.ava. 



Fruit about 7-celled ; leaves mostly 5 to 6 cm. long. 



6. C. parvicapsula. 

 Leaves, at least most of them, acute or obtuse 7. C. mexicana. 



