508 PROCEEDINGS OP THE AMERICAN ACADEMY. 



central Mexico. Mi sico, Valley of Mexico, Sept. 7. 1865-66 (Bour~ 



geau, n<>. 859)] w led caftans, Sierra de las Cruces, Oct. 2, 1892, and 



Serrania de Ajusco, alt. '■'."'■'> m., Sept. 11, 1*97 (C. G. Pringle, nos. 

 1278, 7 157). Originally from the region of Ario, Michoai an. 



/.'. Acaulae. Similar to Angustifoliae bu1 tending to be acauli 

 Bubacaulescent, the obovate canescenl basal leaves forming a rosette: 

 peduncle 0.5 to 2.5 dm. high ; raceme as lorn:; the verticals remote. 



52. S. nana. BBK. I.e. 289; Benth. in DC. I.e. 304; Hemsl. I.e. 

 5G1 ; Briq. 1. c. S. prunelloides, Benth. PI. Hartw. 90, 351, not lll'.K. 

 *S. rhombifolia, Sessd & .Moc. I.e. 8. — Northern Mexico to Central 

 America. Durango, El Sal to, July 12, 1898 ( E. W. Nelson, no. 1566) : 

 Za< \ i ecas, near San Juan Capistrano, Aug. 18, 1897 (/. X. Rose, no. 

 3534): San Luis Potosi, rare in the mountains, San Rafael, 1876 

 (Schaffner, no. 680) ; alt. 1,840 m. (Parry & Palmer, no. 745, 746) : 

 (.i w\.it lto, 1*93 (A. Duges, no. 228 B) : OaxaCA, Boca de Leon, 

 Telixtlahuaca, June 27, 1895 (L. C. Smith, no. 414). Originally from 



t . I WA.HATO. 



C. Vulgates, Benth. Branching or sometimes simple herbs, rarely 

 half-shrubs : leaves petioled, ovate, rarely oblong, membranaceous, 

 rounded round-cuueate or subcordate at base. (S. prunelloides and 

 S. Martensii may be looked for here.) 



* Annuals. 



■*- Coarse more or less canescent plant with long-petioled pale-green leaves ami 

 peduncleil spiciform lieads with persistent foliaceous broad bracts. 



53. S. hispanica, L. Spec. 25; Edw. Bot Keg. v. t. 3.39 ; Benth. in 

 DC. I.e. 308; Hemsl. I.e. 558; Briq. in Engl. & Prantl. I.e. 279. 

 S. tetragona, Moeneh, Meth. 373. S. prismatica, Cav. fide Hemsl. I.e. 

 S. neo-kispanica, Briq. Ann. Conserv. Jard. Bot. Geneve, ii. 187. — 

 From western Texas and Coahuila to northern South America and the 

 We8t Indies. Introduced into southern Europe, whence the specific 

 name. Coahcila, Carneros Pass, Sept. 27, 1890 ( C. G. Pringle, no. 

 3683): Durango, sides of arroyos, Santiago Papasquiaro, Aug., 1896 

 (Edw. Palmer, no. 967); bottom-lands, Durango, Oct., 1896 (Edw. 

 Palmer, no. 7.">7) : San Li is Potosi, sand near the city, 1876 



§ xaffner, nos. 675, 1053): <ii lnajuato, 1895 (.1. Dugh): .Jalisco, 

 Rio I'.lanco, Oct., 1886 (Edw. Palmer, no. 659): Vera Cruz, Orizaba 

 (Botteri, no. 534): Mexico, Santa Fe\ Oct 15, 1865-66 (Bourgeau, no. 

 1109): OAXACA,near Reyes, alt. 1,800 to 2,600 m., Oct. 20, 1894 

 ( A'. IT. Nelson, no. 1782); Jayacatlan, alt. 1,850 m., Nov. 4, 1894 



