1898.] NATURAL SCIENCES OF PHILADELPHIA. 399 



ERICACEAE. 



141. Pernettya ciliaris D.Don, ex. G. Don Gen. Syst., Ill, 837; Biol. Centr. Amer. 



Bot., II, 280. 



A strong, low growing, woody shrub with ericaceous lanceolate 

 leaves and red berries and strong root development. Said to be 

 poisonous to sheep. La Cima, Sierra del Ajusco, Aug. 18 (133). 



GENTIANACE^. 



142. Haleniaparviflora G.Don. Gen. Syst., IV, 177; Biol. Centr. Am. Bot., 11,352. 

 Distributed through Mexico to Colombia and Peru. La Cima, 



Sierra del Ajusco, Aug. 18 (137). 



BORAGINACEJE. 



143. Lithospermum angustifolium Michx. Fl. Bor. Am., I, 130; Biol. Centr. 



Amer. Bot., II, 381. 



Illinois to Wisconsin, southward to Texas and westward to Utah 

 and Arizona, also in Mexico. La Cima, Sierra del Ajusco, Aug. 18 

 (136). 



144. Lithospermum distichum Orteg. Hort. Matr., Dec. 8 ; Biol. Centr. Amer. Bot. 



II, 381. 



South Mexico, peak of Orizaba, 11,000 to 12,000 feet (Galeotti). 

 Sierra del Ajusco, Aug. 18 (146). 



LABIATJE. 



145. Salvia glechomaefolia H. B. & K. Nov. Gen. et Sp., II, 290, t. 141 ; Biol. 



Centr. Amer. Bot., II, 556. 



South Mexico between Guanajuato and Santa Rosa at about 8,800 

 feet (Humb. & Bonpl). Sierra del Ajusco, Aug. 18 (142). 



SOLANACEJE. 



146. Nectouxia formosa H. B. & K. Nov. Gen. et Sp., Ill, 10, t. 193. 

 Reported from various parts of Mexico. La Cima, Sierra del 



Ajusco, 11,000 feet, Aug. 18 (110). 



147. Solanum tuberosum Linn. Sp. PL, 185; Biol. Centr. Amer. Bot., II, 416. 



" The potato is wild in Mexico, but whether really indigenous it 

 is impossible to say. It is probable that more than one species was 

 concerned in the parentage of the cultivated varieties. On the other 

 hand, several tuberiferous Solani described by various authors as- 

 distinct species differ less from each other than the more distinct of 

 the cultivated varieties." These plants in such an unfrequented 

 place as the pedregal on top of a high mountain are probably wild. 



