STANDLEY TREES AND SHRUBS OF MEXICO. 125 



66. Agave g-oldmaniana Trel. Rep. Mo. Bot. Gard. 22: 49. 1911. 

 Eastern Baja California ; type from Yubai. 



Trunk short ; leaves grayish, 10 cm. wide, 50 cm. long, with nearly straight 

 blackish spine 7 mm. wide and 40 mm. long, and teeth 15 to 30 mm. apart and 

 up to 10 mm. long, these very nearly triangular, often connected by a horny 

 band, the intervening margin nearly straight. 



67. Agave applanata Koch, Wochenschr. Ver. Beford. Gartenb. 1862: 83. 1862. 

 Veracruz ; on the lava fields about Limon ; type cultivated in Europe, without 



recorded locality. 



Leaves glaucous, 10 to 15 cm. wide, 100 to 150 cm. long, with purplish or 

 gray, somewhat flexuous, long-decurrent spine 6 to 7 mm. wide and 35 to 45 

 mm. long, and more or less recurved, triangular teeth 25 to 50 mm. apart and 

 5 to 8 mm. long, the upper ones connected by a horny line. 



68. Agave scabra Salm-Dyck, Bonplandia 7: 86. 1859. 

 Agave ivisUzeni Engelm. Trans. Acad. St. Louis 3: 320. 1875. 

 Agave noah Nickels, Cat. 26: 20. 



Coahuila ; type from San Sebastian, Sierra de Noa. 



Leaves dull gray, smooth, acute, 10 to 15 cm. wide, 20 to 25 cm. long, with 

 somewhat curved and dfecurrent, chestnut or gray spine 3 to 4 mm. wide and 

 15 to 20 mm. long, and more or less curved, narrowly triangular teeth 15 to 

 20 mm. apart and 3 to 8 mm. long, the margin between them slightly hollowed. 



69. Agave huachucensis Baker, Amaryll. 172. 1888. 



Southern Arizona (type locality, Huachuca Mountains), and perhaps adjacent 

 Mexico. 



Leaves in a globose cluster, dull gray, essentially smooth, acute, 10 to 15 cm. 

 wide, 16 to 30 cm. long, with more or less flexuous and decurrent, red-chestnut 

 or gi'ay spine 5 to 6 mm. wide and 25 mm. long, and usually recurved, narrowly 

 triangular teeth 15 nun. apart and 4 to 7 mm. long, the margin between these 

 usually concave. 



70. Agave parrasana Berger, Notizbl. Bot. Gart. Berlin 4: 250. 1906. 

 Coahuila ; type from Sierra de Parnls. 



Leaves green, lightly glaucous, obovate, long-acuminate, 6 to 8 cm. wide, 

 10 cm. long or more, with slender-tipped spine 3 to 4 mm. wide and 50 mm. 

 long, and more or less recurved triangular teeth about 10 mm. apart and 5 mm. 

 long, on fleshy prominences. 



71. Agave chihuahuana Trel. Rep. Mo. Bot. Gard. 22: 90. 1911. 

 Chihuahua ; type locality near Chihuahua. 



Leaves grayish, somewhat acuminate, 10 to 15 cm. wide, 15 to 25 cm. long, 

 with purplish chestnut spine 4 to 7 mm. wide and 25 to 35 mm. long, and 

 triangular teeth 15 to 25 mm. apart and 6 m^i. long, the margin between them 

 nearly straight ; filaments inserted far above the middle of the tube. 



72. Agave parryi Engelm. Trans. Acad. St. Louis 3: 311. 1875. 

 Mountains of northern Chihuahua. Southern Arizona and New Mexico ; 



type from Santa Rita, New Mexico. 



Leaves gray, acute or somewhat acuminate, 6 to 10 cm. wide, 25 to 30 cm. 

 long (exceptionally 15 cm. wide and 40 cm. long), the spines nearly straight, 

 from chestnut becoming gray, 5 to 6 mm. broad and 20 to 25 mm. long, the 

 teeth straightish or gently recurved, 15 to 20 mm. apart, 3 to 5 mm. long; 

 filaments inserted nearly in the throat of the perianth tube. 



73. Agave patonii Trel. Rep. Mo. Bot. Gard. 22: 92. 1911. 

 Durango ; type locality, Chinacates. 



Leaves grayish, more or less acuminate, 20 cm. wide, 30 cm. long, with nearly 

 straight purplish spine 6 mm. wide and 30 to 35 mm. long, and relatively 



