STANDLEY TREES AND SHRUBS OF MEXICO. 131 



nearly straight; inflorescence 8 meters tall or more; flowers green-yellow, 70 

 mm. long, the perianth segments equaling the tube. 



Distrito Federal ; type, in the herbarium of the Missouri Botanical Garden, 

 from Tacubaya, Trelease. 



" Maguey mapisaga " ; planted for pulque. 



107. Agave schlechtendalii Jacobi, Hamb. Gart. Zeit. 20: 555. 1864. 

 Region ? ; type cultivated in Europe from seed said to have come from 



Sonora. 



Known only from young plants rather closely comparable with those of 

 atrovirens, but the gray leaves thinner and more outcurving. 



108. Agave bourgaei ^ Trel., sp. nov. 



Leaves gray, as much as 10 to 15 cm. wide and 150 cm. long, w'ith conical 

 gray spine 3 mm. wide and 30 mm. long, and triangular teeth some 10 mm. 

 apart, the intervening margin more or less hollowed ; panicle 3 meters tall or 

 more; flowers 70 to 75 mm. long, the perianth segments nearly twice as long 

 as the tube, the filaments inserted above the upper third of the tube. 



Valley of Mexico ; type, in the herbarium of the Museum of Natural History, 

 Paris, collected on the lava fields, Bourgeau 1020 ; also Bourgeau 1390 and 

 Pringle 6677. 



109. Agave mirabilis Trel.. sp. nov. 



Leaves smooth, bright dark green when abraded, but densely white-pruinose, 

 40 cm. wide, 200 to 250 cm. long, often reflexed above the middle, with long 

 gray spine 6 mm. wide and 80 mm. long, and triangular, more or less recurved 

 teeth mostly 30 to 60 mm. apart and 10 to 15 mm. long, these abruptly dilated 

 at base; inflorescence 8 to 10 meters tall, the thick (25 cm.) scape with very 

 narrow reflexed bracts ; flowers 70 to 80 mm. long, the tube and segments 

 equal; capsules 25 mm. broad, 40 mm. long, not stipitate but shortly apiculate; 

 seeds 6 to 7 mm. wide, 8 to 10 mm. long. 



Paebla ? ; type, in the herbarium of the Missouri Botanical Garden, from Las 

 Vigas, Trelease. 



" Maguey bianco " ; planted in hedges. 



110. Agave franzosini Baker, Kew Bull. Misc. Inf. 1892: 3. 1892. 

 Locality ? ; type cultivated on the Riviera. 



Leaves very rough, glaucous, often recurving, 20 to 30 cm. wide, 200 to 300 

 cm. long, with stout decurrent conical smoky-gray grooved spine 10 mm. wide 

 and 55 mm. long, and abruptly broadly triangular teeth 30 to 70 mm. apart 

 and 5 to 10 mm. long, these often from fleshy prominences ; scape green. 



111. Agave marmorata Roezl, Belg. Hort. 33- 238. 1883. 

 Agave todaroi Baker, Amaryll. 195. 1888. 



Puebla ; type locality unquestionably the Cerro Colorado near Tehuacan. 



Leaves very rough, gray, green-zoned, 25 to 40 cm. wide, 100 to 1.50 cm. long, 

 with short, stout, curved, dull red spine 5 to 15 mm. wide and 20 mm. long, 

 and large, rough, rusty brown teeth 15 to 40 mm. apart and 5 to 10 mm. long, 

 sometimes in pairs, from fleshy prominences. " Maguey curandero," or 

 " pitsomel." 



^ E. Bourgeau was a member of the French Scientific Commission of 1865-66. 

 He had had previously wide experience as' a botanical collector in the Old 

 World, and his Mexican collection was an extensive one. It was gathered 

 chiefly in the Valley of Mexico and in Veracruz. A large number of his 

 specimens are in the U. S. National Herbarium. He died at Paris in 1877. 



