BLAKE.— SPECIES HERETOFORE REFERRED TO LEPTOSYNE. 339 
capitulis 1-1.5 em. altis 3 em. diametro (radiis inclusis); squamis 
exterioribus subcrinitis oblongo-spatulatis obtusis, interioribus oblon- 
gis obtusis apice fimbriatis (8-10 mm. longis 4-5 mm. latis); radiis ea. 
5 ovalibus 13 mm. longis 8 mm. latis; corollis disci 7 mm. longis infra 
hirtellis 4-dentatis— Pursia: dry rocky hillsides, Esperanza, Aug. 
1907, Purpus 2581 (rypE in Gray Herb.). 
Sect. 2. Anathysana Blake, n. sect., herbae perennes caulibus 
pluribus radice lignea foliis oppositis integris vel pinnatiformibus lobis 
paucis filiformi-linearibus. Involucrum ut apud §1, squamis interiori- 
bus 8-12. Flosculi radii fertiles; ei disci saepius exannulati. Styli 
rami apice incrassati breviter appendiculati. Achenia ut apud $1, 
epapposa.— Type species Leptosyne mexicana Gray (= C. cyclocarpa 
Blake).— Three species of Mexico and Socorro Island. 
* Leaves entire, linear-filiform. 
Fae 4. C. cyclocarpa Blake, n. nom. Stems numerous from a thick 
woody base, 6-7 dm. high, slightly pubescent below; leaves 2-6 cm. 
long, entire or very rarely 3-lobed from near the middle, ciliate at 
base; heads rather few, long-peduncled, 6-8 mm. high, 1.5-2.5 em. 
in diameter including the 8-10 rays; outer scales about half as long 
as inner; disk-florets exannulate.— Leptosyne mexicana Gray, in 
Wats. Proc. Am. Acad. xxii. 429 (1887), not C. mexicana (DC.) Hemsl. 
(1881).— Named from the orbicular indistinctly margined achenes, 
those of the ray 4.5 by 4.5 mm.— Jauisco: Rio Blanco, Sept. 1886, 
Palmer 568 (type of L. mexicana in Gray Herb.); near Guadalajara, 
10 Sept. 1890, Pringle 3570, 24 Sept. 1891, Pringle 3841, 4 Oct. 1903, 
Pringle 11546. Rs 
* * Leaves pinnately divided into 3-7 linear lobes, the uppermost sometimes 
entire. 
+ Heads larger, inner involucre 6-8 mm. long; leaves mostly with 3 lateral 
pairs of lobes; disk-flowers with hairy annulus. 
” 5. C. pinnatisecta Blake, n. nom. In habit, pubescence, and 
involucre very similar to the last; leaves 2-3 cm. long, the lobes 
mucronate-tipped; achenes obovate, 3.5-4 mm. long, 2.5 mm. broad.— 
Leptosyne Pringlet Rob. & Greenm. Am. Journ. Sci. ser. 3. 1. 155 
(1895), not C. Pringlei Rob. Proc. Am. Acad. xliii, 41(1907).— 
Oaxaca: Sierra de San Felipe, 2135 m., 7 Aug. 1894, Pringle 4871 
(TYPE in Gray Herb.); Pursia: Cerro de Paxtle, near San Luis” 
Tultitlanapa, Sept. 1909, Purpus 4098. 
