326 ASCLEPIADE. 
27. Asclepias quinquedentata, A. Gr. in Proc. Am. Acad. xii. P. 71, et xvi. 
p. 103. 
Mew Mexico.—Norta Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry 
& Palmer, 583; Schaffner, 57). Hb. Kew. 
28. Asclepias rosea, H. B. K. Nov. Gen. et Sp. iii. p. 189; DC. Prody. viii. 
p- 569. | | 
South Mexico, near Chilpancingo, at 4200 feet (Humboldt & Bonpland), Cordillera 
of Vera Cruz, 2500 feet (Galeotti, 1516, 1542), Mirador (Linden, 349), Guanajuato 
(Hartweg); GuatemaLa (Skinner; Bernoulli, 312). Hb. Kew. 
29. Asclepias rubricaulis, H. B. K. Nov. Gen. et Sp. iii. p. 189; DC. Prodr. 
viii. p. 569. 
SoutH Mexico, La Venta del Peregrino, 1550 feet (Humboldt & Bonpland). 
80. Asclepias schaffneri, A. Gr. in Proc. Am. Acad. xvi. p. 103. 
NortH Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 582; 
Schaffner). Tb. Kew. 
31. Asclepias setosa, Benth. Pl. Hartw. p. 24; DC. Prodr. viii. p. 567. 
South Mexico, Aguas Calientes (Hartweq), Zimapan (Coulter, 989, 991), Zacuapan 
(Linden, 343), Oaxaca (Ghiesbreght, 669), region of Orizaba (Bourgeau, 3036). Hb. 
Kew. 
32. Asclepias similis, Hemsley, n. sp. 
Puberula, foliis floribusque iis A. rubre, A. phytolaccoidet et A. purpurascentis similibus sed venis 
primariis transversis crebrioribus, cucullis supra vaginam distinctam sessilibus antheras supe- 
rantibus, ligula vix exserta. 
Herba robusta, erecta, primum puberula, caulibus simplicibus cito glabrescentibus. Folia opposita, 
breviter petiolata, crassiuscula, late ovata, 43-54 poll. longa, 2-3 poll. lata, vel superiora 
interdum fere lanceolata, simul minora, acuta, basi late rotundata vel cuneata, supra glabra 
vel cito glabrescentia, subtus puberula, pallidiora, venis primariis transversis 20-30, conspicuis. 
Flores majusculi, umbellati; umbellz terminales vel saltem in apicibus caulorum 2-4 aggre- 
gate, multiflore, 14-2 poll. ‘diametro ; pedunculi 1-1} poll. longi; pedicelli graciles, puberuli, 
6-12 lineas longi, bracteis linearibus ; calycis segmenta oblongo-lanceolata, vix acuta, glabra; 
corollz lobi purpurei, oblongi, arcte recurvi; cuculli (coronz squamz) supra vaginam lineam 
longam sessiles, subcylindrici, apice oblique truncati, antheras superantes ; ligula vix exserta; 
ovaria glabra. Folliculi nobis ignoti. 
SourH Mexico, Chiapas &c. (Ghiesbreght, 665, 666). Hb. Kew. 
33. Asclepias subulata, Dene. in DC. Prodr. viii. p. 571; A. Gr. Synop. Fl. 
N. Am. ii. p. 96; Torr. in Pacif. Railr. Rep. v. t. 7. 
South-east Catirornia and West Arizona; Lowzr Catirornia—West Mexico? (ex 
A. Gray). 
