392 PROCEEDINGS OF THE AMERICAN ACADEMY. 



hirsuta; foliis inferioribus deltoideis vel ovato-deltoideis utrimque 

 glandulari-hirsutis venas tres secundum praecipue, lamina 7-10 cm. 

 longa lataque acuta infra abrupte fere truncate contracta in portionem 

 petioliformem late marginatam media in parte 1.2-1.7 cm. basi 1.7- 

 3.5 cm. latam, superioribus sensim ad bracteas ovatas reductis; capi- 

 tulis non paucis axillaribus et terminalibus in pedunculis 4-14 cm. 

 longis; disco 1.3-1.5 cm. alto 1.7-2.2 cm. diametro; involucro quam 

 eo paullo breviore squamis 2-3-seriatis exterioribus paullo brevioribus 

 acutis lanceolatis glandulari-hirsutis valde costatis; radiis ca. 20 

 flavis ovalibus 6.5 mm. longis; corollis disci flavis 5.5-6 mm. longis 

 (tubulo 1 mm.) infra et in dentibus puberulis; paleis 9 mm. longis 

 supra hirsutulis; achenio nigricante dense appresse pubescente 7.2 

 mm. longo 3.3 mm. lato aristis 2 sursum ciliatis basi fimbriatis 4 mm. 

 longis. 



Specimens examined : Guanajuato : near culti^'ated gardens, Cerro 

 de Cuarto, Sept. 1903, Duges 12 (G). Also the following cultivated 

 specimens: Harvard Botanic Garden, 1866, "e sem. Hort. Par."; 

 Botanic Garden of Deidesheim, Rhine-Palatinate, 25 Nov. 1859, 

 Schultz Bipontinus (type in Gray Herb.). 



X X Leaves silky beneath, 

 o Achenes glabrous, awnless; branches puberulent and pilose. 



19. S. Ghiesbreghtii (Gray) Blake, n. comb. Lower part of stem 

 unknown; branches apparently few, opposite, like the stem purplish, 

 glandular-puberulent and pilose; leaves all opposite, ovate-lanceolate, 

 acuminate, truncate or subcordate at base, serrate, canescent above 

 with a short glandular pubescence, silky with dense appressed hairs 

 beneath, 4.5 cm. long, 2-2.5 cm. wide, on densely pilose marginless 

 petioles a centimeter long; heads few or solitary towards tips of branch- 

 lets, the disk 10-11 mm. high, 10 mm. wide, equaled by the periclinium, 

 this triseriate, the outer scales a little shorter, all subulate-linear, glan- 

 dular-puberulent and pilose-hirsute; rays about 10, pale yellow, pur- 

 plish-tinged outside, oblong, 11 mm. long, 4.6 mm. wide; disk-corollas 

 yellow, puberulent particularly on tube, 6-6.5 mm. long (tube 1.2 

 mm.) ; pales 9.5 mm. long, pubescent on the subherbaceous keel above, 

 very acute; immature achene 3.5 mm. long, oblong, glabrous and 

 awnless. 



Encelia (BarruUia) Ghicshrcghiii Gray, Proc. Am. Acad. viii. 658 

 (1873). 



EnccUa Ghieshrrghiiana Hemsl. Biol. Centr.-Am. Bot. iv. 57 (1887), 

 clerical error for E. Ghiesbreghtii Gray. 



