394 PROCEEDINGS OF THE AMERICAN ACADEMY. 



latis; corollis disci 6.5-7.5 mm. (tubulo 1 mm.) longis flavis denique 

 apice purpurascentibus glandulosis praecipue in tubulo; acheniis 

 maculosis appresse pubescentibus pilis ferrugineis 5-6 mm. longis 

 2.8-3 mm. latis; aristis 2, 4 mm. longis. 



Specimens examined: Puebla: rocky soil, Cerro de Paxtle, Sept. 

 1908, Purpus 3022 (FGN, cotypes). Distributed as Encclia hctero- 

 phylla (= S. foetida), from which it differs in size of achene, leaf -base, 

 and whole character. 



H— H- Rays purple. 



22. S. SANGUINEA Gray. Stems several, erect from a Avoody root, 



1 m. high or more, branched above, usually purplish, glandular-setose; 

 lower leaves opposite, variable, hastately 3-lobed, with l)roadly mar- 

 gined cordate-clasping petiolar bases, crenate-dentate or sometimes 

 cut-lobed, scabrous and glandular-setose both sides, 3-18.5 cm. long 

 including petiole, about as wide across the lobes, the upper reduced 

 to linear-lanceolate bracts; heads numerous, panicled, on peduncles 

 1-11 cm. long; disk 1-1.5 cm. high, mostly slightly surpassing the 

 involucre; this 3-seried, the scales linear-subulate to lanceolate, 

 striate, densely glandular, setose, the outer distinctly shorter; rays 

 about 10, rich purple, oblong-oval, 6-10 mm. long; disk-corollas 

 5-8 mm. long, purple above, glandular-pubescent below, hairy on the 

 teeth; pales 8.5-13 mm. long, narrow, glandular-pubescent toward the 

 acute tip; achenes blackish, oval, barely obcordate, 4.5-6.5 mm. long, 

 2.5-3.5 mm. wide, more or less densely appressed-pubescent, bearing 



2 teeth or 1 short smooth awn or 2 upwardly pubescent awns as much 

 as 3 mm. long. 



Simsia sanguinca Gray, PI. Wright, i. 107 (1852). 



Eticelia sanguinea Hemsl. Biol. Centr.-Am. Bot. ii. 185 (1881). 



Simsia erythranthema Sch. Bip. in Gray, Proc. Am. Acad. xix. 9 

 (1883), as syn. 



Specimens examined: Jalisco: dry grassy slopes of the barranca 

 near Guadalajara, 5 Nov. 1888, Pringle 1738 part (F: intermediate 

 between this and the next) ; Vera Cruz : hillsides, Chavarillo, 7 Sept. 

 1906, Barnes, Chamberlain, & Land 6 (F); Mirador, Consoquitla, 

 Aug. 1841, Liehinann 492 (G); Mirador, without date, Sartorius (G); 

 Oaxaca: hills. Las Sedas, alt. 1830 m., 11 Aug. 1894, Pringle 5756 

 (G); El Parian, Etla, alt. 1200 m., Nov. 1898, Conzatti & Gonzalez 

 899 (G); Santa Catarina, alt. 1000 m., 26 Dec. 1906, Conzatti 1652 

 (F); La Carbonera, alt. 2135 m., 20 Sept. 1895, L. C. Smith 817 (G); 

 Monte Alban, alt. 1800 m., 18 Aug. 1897, Conzatti & Gonzalez 403 (G); 



