STANDLEY TREES AND SHRUBS OF MEXICO. 1303 



1. Brachistus diversifolius (Klotzsch) Miers, Ann. Mag. Nat. Hist. II. 3: 



268. 1849. 



Witheringia diversifoUa Klotzsch; Walp. Repert. Bot. 3: 29. 1844. 



"Veracruz, Morelos, and Chiapas. 



Slender shrub, 1.5 to 2.5 meters high ; leaves lanceolate or lance-ovate, 4 to 

 11 cm. long, acute at base, thinly pilose or glabrate, the pairs of leaves very 

 unequal, one of each pair small and often obtuse ; flowers long-pedicellate, the 

 pedicels usually recurved ; corolla greenish yellow, about 7 mm, broad ; fruit 

 6 to 8 mm. in diamter. 



2. Brachistus pringlei S. Wats. Proc. Amer. Acad. 25: 159. 1890. 



Nuevo Leon, Tamaulipas, and San Luis Potosi to Oaxaca ; type from Sierra 

 de la Silla, Nuevo Leon. 



Slender shrub ; leaves broadly ovate to oblong-ovate, 4.5 cm. long or less, 

 abruptly contracted at base, sparsely pubescent or densely so beneath ; corolla 

 greenish yellow, 8 mm. broad ; calyx lobes linear, somewhat elongate in fruit. 



DOUBTFUL SPECIES. 



Brachistus ligustrinus (Dunal) Hemsl. Biol. Centr. Amer. Bot. 2: 423. 1882. 

 Fregirardia Ugustrina Dunal in DC. Prodr. 13^: 507. 1852. Type from " De- 

 sierto Viejo." Scarcely of this genus, but the generic position of the plant is 

 doubtful. 



12. BASSOVIA Aubl. PI. Guian. 1 : 217. 1775. 



Shrubs or small trees ; leaves entire or sinuate ; pedicels usually fasciculate, 

 sometimes umbellate ; calyx broadly campanulate, 5 to 10-dentate or truncate, 

 not or scarcely accrescent ; corolla subrotate, cleft to the middle or lower ; fruit 

 a 2-celled globose berry. 



Pubescence of the leaA'^es of stellate hairs 1. B. stellata. 



Pubescence of simple hairs. 



Leaves sinuate-dentate 2. B. stramoniifolia. 



Leaves entire. 



Stems setose-pilose 3. B. setosa. 



Stems glabrous or short-villous. 



Leaves barbate beneath in the axils of the lateral nerves 4. B. foliosa. 



Leaves not barbate beneath. 



Leaves glabrous beneath ; corolla 12 to 14 mm. long. 



5. B. escuintlensis. 

 Leaves sparsely short-villous beneath ; corolla 6 to 7 mm. long. 



6. B. mexicana. 



1. Bassovia stellata Greenni. Proc. Amer. Acad. 41: 246. 1905. 



Hidalgo and Veracruz ; type from Trinidad Iron Works, Hidalgo, altitude 

 1,500 meters. 



Shrub, 1 to 2 meters high ; leaves ovate or oblong-ovate, 5 to 9 cm. long, 

 acuminate, entire, glabrous above or nearly so, stellate-tomentose beneath or 

 finally glabrate ; flowers numerous, long-pedicellate ; calyx with short rounded 

 lobes ; corolla 5 to 6 mm. long. 



2. Bassovia stramoniifolia (H. B. K.) Standi. 



Wither ingia stramoniifolia H. B. K. Nov. Gen. & Sp. 3: 13. 1819. 

 Brachistus stramoynifoUtis Miers, 111. S. Amer. PI. 2: 7. 1849. 

 Bassovia donnell-smithii Coulter, Bot. Gaz. 16: 145. 1891. 



