ASCLEPIADEZ. 323 
4. Asclepias brachystephana, Engelm. in Torr. Bot. U.S. & Mex. Bound. 
Surv. p. 163; A. Gr. Synop. Fl. N. Am. ii. p. 94. 
Wromine; Cotorapo; Arizona; Texas.—Nortu Mexico, Sonora (Wright), Chihuahua 
(Potts), west of Saltillo (Gregg), mountains south of Saltillo (Palmer, 814), region of San 
Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 576). Hb. Kew. | 
5. Asclepias coulteri, A. Gr. in Proc. Am. Acad. xii. p. 71. 
Mexico (Coulter, 983). Hb. Kew. 
6. Asclepias curassavica, Linn.; DC. Prodr. viii. p. 566; A. Gr. Synop. Fl. N. 
Am. ii. p. 90; Bot. Reg. t. 81. 
FLoripa and Louisiana, “ perhaps introduced” (A. Gray).—Common in Mexico and 
CENTRAL AMERICA, and in nearly all warm countries. Hb. Kew. 
7. Asclepias elata, Benth. Pl. Hartw. p. 290. 
NortH Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 
579); Sour Mexico, Aguas Calientes (Hartweg), region of Orizaba (Bourgeau, 2713). 
Hb. Kew. 
8. Asclepias erosa, Torr. Bot. U.S. & Mex. Bound. Surv. p. 162. 
Sourn Utaw; Canirornta; ARIzonaA.—Nortu Mexico, Sonora, within the old boundary 
(Thurber). 
9. Asclepias euphorbizfolia, Engelm. in Proc. Am. Acad. xvi. p. 104. (Tab. 
LVI. A. figg. 1-4.) 
Norta Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer ; 
Schaffner). Hb. Kew. 
EXPLANATION OF TAB. LVI. A. Frae. 1-4. 
Fig. 1, a flower ; 2, column and corona ; 3, one of the coronal hoods ; 4, a pair of pollinia : all enlarged. 
10. Asclepias fragrans, Dene. in DC. Prodr. viii. p. 571. 
Otaria fragrans, Benth. Pl. Hartw. p. 89. 
GuaTEMALA (Hartweg). Hb. Kew. 
11. Asclepias glaucescens, H.B.K. Nov. Gen. et Sp. iii. p. 190, t. 227: A. Gr. 
Synop. Fl. N. Am. ii. p. 92. 
Texas; New Mexico.—Mexico, Oaxaca (Galeott?, 1503), Vera Cruz to Orizaba 
(Miller, 506, 809), Chiapas &c. ( Ghiesbreght, 667, 668), Cuernavaca (Lilimek); Guate- 
MALA, Duefias, Volcan de Fuego, 4950 feet (Salvin), without locality (Friedrichsthal). 
t 
Hb. Kew. 
12. Asclepias involucrata, Engelm. in Torr. Bot. U.S. & Mex. Bound. Surv., 
p. 163; A. Gr. Synop. ii. p. 94. 
Arizona; New Mexico.—Nortu Mexico, between Lake Guzman and Rio Grande 
(Bigelow, Thurber), San Luis Mountains, Sonora (Smith). Hb. Kew. 
22 
