1070 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



17. HETEROTRICHUM DC. Prodr. 3: 173. 1828. 

 Shrubs with hispid-setose stems ; leaves large, petiolate, usually 7-nerved, en- 

 tire or serrulate ; flowers 4 to 9-parted, chiefly in terminal panicles ; calyx tube 

 campanulate ; petals obovate, obtuse, white or pink ; stamens equal ; fruit bac- 

 cate. 



Leaves densely stellate-pubescent beneath ; flowers 8-parted, the panicles few- 

 flowered 1. H. octonum. 



Leaves without stellate pubescence; flowers 4 or 5-parted, the panicles many- 

 flowered 2. H. scopulinum. 



1. Heterotrichum octonum (Humb. & Bonpl.) DC. Prodr. 3: 173. 1828. 

 Melastoma octonum Humb. & Bonpl. Monogr. Melast. 1: 7. pi. J/. 1816. 

 Oaxaca, Chiapas, and Tabasco. Cuba; Central and South America. 

 Shrub, 2 to 3 meters high, the branches long-setose and stellate-tomentulose ; 



leaves broadly ovate, 7 or 9-nerved, 10 to 20 cm. long, acuminate, cordate at 

 base, denticulate, setose above ; calyx tube 4 to 5 mm. long, the lobes 2 to 3 mm 

 long ; petals white, 8 to 9 mm. long ; fruit 7 to 8 mm. long. 

 Many of the inflorescences are axillary or lateral in this species. 



2. Heterotrichum scopulinum T. S. Brandeg. Univ. Calif, Publ. Bot. 6: 187. 



1915. 



Type from Cerro del Boqueron, Chiapas. 



Shrub, 1 meter high, the branches setose; leaves very broadly ovate, 10 to 18 

 cm. long, 7-nerved, acuminate, cordate at base, denticulate, setose above, fur- 

 furaceous-villosulous beneath along the nerves ; calyx tube 2.5 mm. long, hir- 

 tellous; petals pink, 3 mm. long; fruit 4 to 5 mm. in diameter. 



18. OSSAEA DC. Prodr. 3: 168. 1828. 



1. Ossaea micrantha (Swartz) Macfad. Fl. Jam. 2: 49. 1850. 



Melastoma micranthum Swartz, Prodr. Fl. Ind. Occ. 71. 1788. 



Chiapas. Central and South America ; type from Jamaica. 



Slender shrub, 2 to 3 meters high, the branches stellate-puberulent or gla- 

 brate ; leaves petiolate, oblong or lance-oblong, acuminate, acute at base, 

 quintuplinerved, entire, glabrate ; flowers 4-parted, in lax axillary panicles ; 

 calyx 2 mm. long, minutely denticulate; petals white, lanceolate, acute, 3 mm. 

 long; fruit baccate, subglobose, 8-costate. 



19. MAIETA Aubl. PI. Guian. 1: 443. 1775. 



1. Maieta setosa (Triana) Cogn. in Mart. Fl. Bras. 14*: 462. 1888. 



Calophysa setosa Triana in Seem. Journ. Bot. 5: 209. 1867. 



Veracruz, Oaxaca, and Chiapas. Central America ; type from Chontales, 

 Nicaragua. 



Shrub, 2 meters high, the stems densely covered with long stiff retrorse or 

 spreading bristles ; leaves petiolate, the petiole bearing at the apex a large 

 bladderlike bilobate appendage ; leaf blades oblong-ovq,te or broadly elliptic- 

 ovate, 7 or 9-nerved, 10 to 25 cm. long, acute, subcordate at base, long-setose; 

 flowers 3 or 4-parted, in slender-pedunculate axillary cymes ; calyx tube 2 

 mm. long, furfuraceous, the limb shallowly lobate, long-setose; buds bright 

 red ; petals pink, oblong, 3 mm. long ; fruit baccate, 3 mm. in diameter. 



There is little doubt that Tococa vesiculosa DC. is the same plant, and that 

 the proper name for this species is Maieta vesiculosa (DC.) Cogn.* DeCan- 



'In Mart. Fl. Bras. 14': 463. 1888; Tococa vesiculosa DC. Prodr. 3: 166. 1828; 

 Valophysa vesiculosa Triana, Trans. Linn. Soc. Bot. 28: 140. 1871. 



