124 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Leaves dark green, oblong-obovate, acute, 15 to 25 cm. wide, 100 to 150 cm. 

 long, rather thin, with slender brown spine and rather long teeth from the 

 tops of fleshy prominences between wliich other teeth occur on the hollowed 

 margin. " Mezcal," " lechuguilla." 



60. Agave fenzliana Jacobi, Hamb. Gart. Zeit. 22: 170. 1866. 



Agave iiiaeqiiidens Koch, Wochenschr. Ver. Beford. Gartenb. 3: 28. 1860. 



Miclioacftn (?) ; type cultivated in Europe. 



Leaves dull light green, 15 to 20 cm. wide and 150 cm. long or more, with 

 long brown spine and unequal, rather small teeth more or less raised on 

 prominences. 



61. Agave cupreata Trel. & Berger; Berger, Agaven 197. 1915. 



Leaves gray, oblanceolate, acute, 20 cm. wide, 75 cm. long, with copper-colored, 

 somewhat twisted spine 5 mm. wide and 45 mm. long, and large, variously 

 curved, unequal, similarly colored, flat teeth 30 to 60 mm. apart and 10 to 15 

 mm. long, these clasping the tops of large fleshy prominences ; panicle 10 meters 

 tall ; flowers yellow, 55 to 60 mm. long, the tube about 10 mm. long. 



MichoacS-n and Guerrero ; type from the Sierra Madre. 



" Maguey de mezcal." 



62. Agave shawii Engelm. Trans. Acad. St. Louis 3: 314. 1875. 

 Northwestern Baja California, near the coast. Southern California; type 



from Point Loma. 



Trunk 1 meter tall ; leaves green, glossy, acuminate, 6 to 12 cm. wide, 25 to 

 50 cm. long, with flexuous needle-shaped red spine 3 to 6 mm. wide and 20 to 

 40 mm. long, and large, garnet, variously curved teeth 10 to 25 mm. apart and 

 10 to 15 mm. long, connected by a horny band ; filaments inserted about the 

 middle of the perianth tube. 



63. Agave orcuttiana ^ Trel. Rep. Mo. Bot. Gard. 22: 47. 1912. 

 Northwestern Baja California, near the coast ; type from San Quintln. 

 Trunk reaching a height of 3 meters ; leaves green, with gray spine 4 mm. 



wide and 20 to 25 mm. long, and large curved gray teeth with- horny connection; 

 filaments inserted above the middle of .the tube. 



64. Agave sebastiana Greene, Bull. Calif. Acad. 1: 214. 1885. 



Western coast region and islands of middle Baja California ; type from 

 Cedros Island. 



Leaves glaucous, rather acute, 6 to 10 cm. wide, 15 to 30 cm. long, with 

 red-brown or gray spine 5 to 6 cm. wide and 20 to 50 mm. long, and nearly 

 • straight teeth 15 mm. apart and 3 to 5 or even 10 to 15 mm. long, with horny 

 connection ; filaments inserted above the middle of the tube. 



65. Agave pachyacantha Trel. Rep. Mo. Bot. Gard. 22: 48. 1912. 

 Northwestern coast region of Baja California ; type from Todos Santos Bay. 

 Leaves rather gray, acuminate, 10 to 12 cm. wide, 25 to 40 or 75 cm. long, 



with straight heavy chestnut spine 6 to 9 mm. wide and 25 to 40 mm. long, and 

 mostly recurved, heavy teeth 15 mm. apart and 10 mm. long (or sometimes 

 almost suppressed), with connecting horny line; filaments inserted toward the 

 top of the tube. 



^ Named for C. R. Orcutt (1864-), for many years a resident of California, 

 who has collected plants in various parts of Mexico, but especially in Baja 

 California. Many specimens of his collection are in the U. S. National Her- 

 barium. 



