324 ASCLEPIADEZ. 
13. Asclepias jamesii, Torr. Bot. U.S. & Mex. Bound. Surv. p. 162; A. Gr. 
Synop. Fl. N. Am. ii. p. 92. 
Cotorabo; Texas; ARrizona.—NortH Mexico, Tascate, Sonora (Parry). 
14. Asclepias lanuginosa, H. B. K. Nov. Gen. et Sp. iii. p. 193; DC. Prodr. 
viii. p. 564. 
Nortu Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 578) ; 
Sout Mexico, between Casave and Pachuca, 7800 feet (Humboldt & Bonpland), Jalisco 
(Sinclair), Toluca (Andrieua, 231), valley of Mexico (Bourgeau, 62; Graham, 246, 247), 
Cordillera of Oaxaca, 5000 to 7000 feet (Galeotti, 1510). Hb. Kew. 
15. Asclepias laxiflora, Dene. in DC. Prodr. viii. p. 571. 
Otaria laxiflora, Benth. Pl. Hartw. p. 67. 
SoutH Mexico, La Parada (Hartweg). Hb. Kew. 
16. Asclepias linaria, Cav. Ic. Pl. i. p. 42, t.57; DC. Prodr. viii. p.570; Proce. 
Am. Acad, xii. p. 71. 
Nortu Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 585), 
Sierra Madre (Seemann, 2066), between Saltillo and San Luis Potosi (Berlandier) ; 
Souta Mexico, Toluca (Andrieur, 236), Mitla (Andrieux, 237), cold districts of the 
tableland, 7000 feet (Galeotti, 1515), Piflion, Guadalupe, &c., valley of Mexico 
(Bourgeau 61; Bilimek, 224, 226), Guanajuato (Hartweg). Hb. Kew. 
17. Asclepias longicornu, Benth. Pl. Hartw. p. 24; DC. Prodr. viii. p. 570; 
A. Gr. Synop, Fl. N. Am. ii. p. 98. 
Asclepias lindheimeri, Engelm. et A. Gr. Pl. Lindh. i. p. 42. 
Asclepias enotheroides, Cham. et Schl. in Linnea, v. p. 123. 
Texas; New Mexico.—Nortu Mexico, region of San Luis Potosi, 6000 to 8000 feet 
(Parry & Palmer, 587), Zacatecas (Coulter, 988); Soura Mexico, sand-hills, Vera Cruz 
(Galeotti, 1543), Tehuantepec (Andrieur, 229), Vera Cruz to Orizaba (Miller) ; 
GuaTEMALA (Skinner); Nicaragua, Realejo (Sinclair). Hb. Kew. 
18. Asclepias macrotis, Torr. Bot. U.S. & Mex. Bound. Surv. p. 164, t. 45 B 
(ubi macrocera); A. Gr. Synop. Fl. N. Am. ii. p. 94. 
New Mexico; Texas.—Norra Mexico, Chihuahua (ex A. Gray), near Silver City 
within the old boundary (Greene). Hb. Kew. 
19. Asclepias melantha, Dene. in DC. Prodr. viii. p. 570. 
South Mexico, Oaxaca, 8000 to 9000 feet (Galeotti, 1514), San Felipe (Andrieua, 
233). Hb. Kew. 
20. Asclepias mexicana, Cav. Ic. Pl. i. p. 42, t.58; A. Gr. in Proc. Am. Acad. 
xii. p. 71; Synop. Fl. N. Am. ii. p. 96. | 
Asclepias fasciculata, Dene. in DC. Prodr. viii. p. 569. 
Asclepias macrophylla, Nutt. Pl. Gamb. p. 180. 
