STANDLEY TREES AND SHRUBS OF MEXICO. 117 



"Mano larga." " chino bermejo." A good mezcal species; apparently culti- 

 vated for fiber in Sinaloa. A form with open spoon-shaped blunt spine fully 

 10 mm. wide (var. monstrosa) is cultivated as " zapalote." 



18. Ag'ave rhodacantha Trel., sp. nov. 



Leaves green, lightly glaucous, 15 to 20 cm. wide, 250 cm. long or more, with 

 blacli-chestnut flat-based spine 5 mm. wide and 20 mm. long, and large heavy up- 

 curved teeth 20 to 60 or 70 mm. apart and 10 mm. long, from large lenticular 

 bases. 



Sinaloa; type, in the herbarium of the Missouri Botanical Garden, from 

 Mocorito, Limdstrom, in 1909. 



" Espinoza." 



19. Agave pes-mulae Trel., sp. nov. 



Leaves ascending, blue-green, glaucous, 6 to 8 cm. wide, 100 to 150 cm. long, 

 with red-brown spine about 3 mm. wide and 15 mm. long, and sharply upcurved 

 slender triangular teeth about 10 mm. apart and 3 mm. long. 



Jalisco; type, in the herbarium of the Missouri Botanical Garden, from 

 Tequila, Griffiths B, in 1909. 



" Pato de mula," " pie de mula." A good mezcal species. 



20. Ag'ave donnell-smithii ^ Trel. Trans. Acad. St. Louis 23: 144. 1915. 

 Guatemala ; type from Escuintla. 



Acaulescent ; leaves light green, glaucous beneath. 8 cm. wide, 75 to 100 cm. 

 long or more, with garnet or chestnut spine 4 mm. wide and 12 to 15 mm. long, 

 and rather slender upcurved teeth 15 to 25 mm. apart and 2 to 3 mm. long. 

 '21. Agave karwinskii Zucc. Act. Acad. Caes. Leop. Carol. 16': 677. 1833. 



? Agave laxa Salm-Dyck, Hort. Dyck. 8. 1834. 



? Agave viridissima Baker, Gard. Chron. n. ser. 8: 137. 1877. 



Agave corderoyi Baker, Gard. Chron. n. ser. 8: 398. 1877. 



Agave bakeri Ross, Boll. Soc. Sci. Nat. ed. Econom. Palermo. 1894'. 



Puebla and Oaxaca ; type cultivated in Europe, presumably from Tehuacan. 



Trunk becoming 4 meters tall ; leaves green or very transiently glaucous, 

 concave, 2 to 4 cm. wide, 35 to 70 cm. long, with dark bro\vn spine 3 to 6 mm. 

 wide and 25 to 50 mm. long, and strong, upcurved, nearly black teeth 25 to 45 

 mm. apart and 3 to 5 mm. long, the margin nearly straight between them. 

 " Candelillo." 

 22. Agave decipiens Baker, Kew Bull. Misc. Inf. 1892: 183. 1892. 



Agave laxifolia Baker in Curtis's Bot. Mag. 122: 2)1. 7-'/77. 1896. 



Southern Florida, around the coast (type cultivated in Europe without 

 recorded locality) ; presumably native in YucatSn. 



Trunk 2 to 3 meters tall ; leaves green, outcurved, rather fleshy and concave, 

 4 to 10 cm. wide, 70 to 125 cm. long, with dark chestnut spine 3 to 5 mm. wide 

 and 10 to 25 mm. long, and very slender flexous teeth 10 .to 25 mm. apart and 

 2 mm. long, these on fleshy prominences of the margin. 



Cultivated (from a plant of Baja California) as A. spiralis. "False sisal." 



^ Named for Capt. John Donnell Smith (1829-), of Baltimore, Maryland, 

 well known for his extensive publications upon the botany of Central America. 

 Capt. Smith has made collections in Central America, and has directed botanical 

 explorations in many parts of that region. His large herbarium, which con- 

 tains a wide representation of Mexican plants, and his library, have been pre- 

 sented to the Smithsonian Institution, and are incorporated in the U. S. 

 National Herbarium. 



