524 PB0CEEDING8 OP THE AMERICAN ACADEMY. 



to 2,460 in., 1878 (Parry & Palmer, do. 730): Mixnn, Guadalupe 

 June 21, 1865 (Bourgeau, do. 295): Oaxaca, Valley of Cuicatlan, 



alt. 2, to 2,460 in.. Nov. 10, 1894 (A'. II'. Nelson, no. 189*8); Sao 



Juan del Estado, alt 1,800 m., Oct 20, L895 (L. C. Smith, do. '.'• 

 Papalo, Cuicatlao, alt 1,650 m., I tec. 9, 1895 | I'. Gonzalez, do. 42 



Yar. crenaea. Leaves aarrower, oblong-lanceolate, blunt, rounded 

 or subcuneate al base. — S. scorodonia, Benth. PI. Hartw. 20, not Bentb. 

 Lab. 264 — A northern narrow-leaved extreme. AguAb Calientks 

 i ffartweg, no. 1G4): CHIHUAHUA, southwestern section, without locality, 

 1885 I Edw. J '(timer). 



= = Pubescence of calyx long-villous, not glandular. 



104. S. lasiantha, Beoth. Lab. 276, & in DC. I.e. 821; Hemsl. 

 I.e. 559 5 Briq. I.e. — Range of the last from which it differs ooly in 

 the more villous glandless calyx. Perhaps only a variety of that. 

 Durango, Ramos to hide, Aug., 181)8 (E. W. Nelson, no. 4679): San 

 I.i i- PoTOSi, in tin' mountains, San Rafael, 1876 (JSchqffiner, no. 671); 

 without locality, alt. 1,850 to 2,460 m., 1878 (Parry & Palmer, no. 

 731); limestone ledges, San Jose Pass, .Inly 23, 1890, and limestone 

 hills. La, Canoas, Oct. 8, 1890 ( C. G. Pringle, nos. 8206, 3278): 

 BlDALGO, calcareous hills near Tula, alt. 2, 160 in., Oct. 5, 189G (C. G. 

 Pringle, no. 6538) : Oaxaca, near Dominguillo, alt. 2,000 in.. Oct. ■">. 

 1894 (E. W. Nelson, no. 1595). Placed by Bentham and by Briquet in 

 the section Erianthae. 



++ .«. Pedicels longer, 3 to mm. long : racemes loosely flowered; verticil- re- 

 mote: calyx tubular-campanulate, in anthesis ij nun. or more Long. 



= Calyx purplish-violet, glandular-villous, in anthesis nearly 1 cm. long: Lower 

 Lip of corolla almost black ; tulie and galea pale. 



105. S. SEMIATRATA, Zucc. Abhandl. Uaier. Akad. WiSB. i. 298 j 

 Benth. in DC. I.e. 316: Ilemsl. 1. c. 565; Briq. 1. c. — Oaxaca, with- 

 out locality, June (Andrieux, no. 149); calcareous bills, Las Sedas, alt 

 1,850 m., Aug. 2, 1891 (C. G. Pringle, no. 4763), alt. 2,150 m., dune 

 •27. 1895 (A. C. Smith, no. U3)s Dear city of Oaxaca, alt 1,600 to 

 2,100 in., Oct. 2, 1894 {E. W. Nelson, do. 1511). 



= = Calyx green (or blue-tinged), glandular-puberulent and minutely hispiduloua 



on the nerves, in antliesis about (i nun. Icing : coralla blue. 



106. S. Gonzalezii. Branches very slender, BOmewhat villous, the 

 youngest parts and tlie rhachises glandular-puberulent : leaves broad- 

 ovate, bluntisb at tip, truncate or Bubcordate at base, green and very 

 rugose, slightly pubescent above, white-villous beueath, crenulate, 1 to 



