1292 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Calyx slightly if at all accrescent, much shorter than the fruit, usually 

 spreading. 



Fruit 3 cm. in diameter or larger 49. S. raarginatum. 



Fruit usually less than 2 cm. in diameter. 



Stems bristly-hispid, each bristle with a tuft of hairs at apex. 



50. S. hispidum.. 

 Stems not hispid. 

 Pubescence of the pedicels partly of gland-tipped hairs. 



Leaves deeply lobate 51. S. hernandesii. 



Leaves shallowly lobate or entire. 



Pedicels erect in fruit 52. S. torvum. 



Pedicels reflexed in fruit 53. S. madrense. 



Pubescence of the pedicels eglandular. 



Anthers 8 to 10 mm. long 54. S. mitlense. 



Anthers about 5 mm. long. 

 Leaves acute to attenuate at base, entire. 



55. S. laurifolium. 



Leaves usually obtuse to subcordate at base, most of them 



undulate or sinuate-lobate 56. S. diversifolium. 



1. Solanum g-eminiflorum INIart. & Gal. Bull. Acad. Brux. 12i: 142. 1845. 

 Type from Chinantla, Oaxaca. 



Glabrous shrub ; leaves ovate-lanceolate, 7 to 10 cm. long, acuminate, at- 

 tenuate at base, entire; pedicels geminate; flowers white, 6 mm. long. 



Solanum hookerianum Spreng., listed by Hemsley, is a synonym of S. hava- 

 nense Jacq., and is not known from Mexico. 



2. Solanum pringlei Robins. & Greenm. Amer. Journ. Sci. 50: 160. 1895. 

 Jalisco and Michoac.ln ; tj^e from Lake Chapala, Jalisco. 



Plants suffrutescent, about 2 meters high, the branches viscid-villous ; leaves 

 broadly ovate, 5 to 12 cm. long, long-acuminate, broadly rounded and short- 

 decurrent at base, short-villous ; pedicels geminate, recurved in fruit ; corolla 

 nearly 1.5 cm. long ; fruit bright red, 1.5 cm. long, glabrous. 



3. Solanum amatitlanense Coult. & Donn. Smith, Bot. Gaz. 37: 420. 1904. 

 Chiapas. Guatemala ; type from Amatitian. 



Shrub, the branches hirsute with forked hairs ; leaves on very short petioles, 

 oblong-lanceolate or elliptic-oblong, 20 cm. long or less, long-acuminate, obtuse 

 or acute at base and very unequal, entire, hirsute; pedicels fasciculate. 



The writer has seen no material of 8. sylvicola T. S. Brandeg.,* described 

 from Finca Irlanda, Chiapas, which may be a synonym of this species. 



4. Solanum nyctaginoides Dunal in DC. Prodr. IS^: 172. 1852. 

 Hidalgo and probably elsewhere ; described from somewhere in Mexico. 

 Slender shrub, 3 to 4.5 meters high, the branches hirtellous; leaves slender- 



petiolate, lanceolate to ovate-elliptic, 13 cm. long or less, long-acuminate, 

 attenuate at base, pilose-hirsute, entire ; pedicels fasciculate ; corolla 10 to 14 

 mm. long ; fruit globose, orange. 



5. Solanum purpusii T. S. Brandeg. Univ. Calif. Publ. Bot. 6 : 62. 1914. 

 Type from Finca Mexiquito, Chiapas. 



Slender shrub, the branches hirsute with branched hairs; leaves short-petio- 

 late, oblong-ovate, 12 cm. long or less, acuminate, rounded at base, entire, 

 sparsely hirsute above, sparsely stellate-pubescent beneath ; pedicels solitary or 

 geminate ; calyx lobes in fruit sometimes 1.5 cm. long ; fruit 1.5 cm. in diameter. 



*Univ. Calif. Publ. Bot. 6: 373. 1917. 



