98 Contributions from the Gray Herbarium 
cently so. Leaves alternate or rarely opposite, ovate in outline or 
linear, divided nearly to midrib into 3-7 linear or linear-lanceolate 
entire or few-lobed or -toothed lobes, or the upper linear and 
entire or subentire (the lobes attenuate, 1-5 mm. wide, equalling 
the lamina in breadth), above dull green, tuberculate-strigillose, 
beneath canescently strigillose, 2.5-6 em. long, 4 cm. or less 
wide across the basal pair of lobes. Heads solitary at ends of 
branches, 1.8-3 cm. wide, on peduncles 2 dm. long or less; disk 
6-8 mm. high, 8-12 mm. thick. Involucre 3-seriate, 6~9 mm. high, 
the phyllaries with ovate-lanceolate pale strongly indurated and 
ribbed base abruptly narrowed into a linear loose or spreading 
herbaceous tip, more or less strigose and strigillose, or the hairs 
somewhat looser. Rays about 12, 7-14 mm. long, 24 mm. wide; 
disk-corollas puberulous, with recurved teeth, 3.8 em. long. Pales 
abruptly acute, 5 mm. long. Achenes glabrous, substriate, rather 
strongly compressed but subquadrangular, 3.5 mm. long. Pappus 
none. — Heliomeris tenuifolia Gray! Pl. Fendl. 84 (1848); Pl. 
Wright. i. 107 (1852), ii. 87 (1853). Gymnolomia tenuifolia (Gray) 
B. & H. ex Hemsl. Biol. Centr.-Am. Bot. ii. 163 (1881); Gray, Syn. 
F1. i. pt. 2. 269 (1884); Rob. & Greenm. Proc. Bost. Soc. Nat. Hist. 
xxix. 90 (1899). (Not V. tenuifolia Gardn. (1848).) — TEXAS: 
rocky cliffs of Turkey Creek and beyond the Pecos, Wright 329 
(G.); rocky cliffs near Eagle Springs, Wright 1223 (G.); Presidio, 
Havard (G.); Rio Hondo, Cameron Co., 1913, Chandler 7041 
(G.); El Paso, A. Gray (G.). NEW MEXICO: Organ Mts., 
1465 m., Dona Ana Co., 1897, Wooton 442 (G.). MEXICO: 
CHIHUAHUA: Quincumé, 1852, Thurber 834 (G.); river bluffs, 
: fhuroer oot 
1130 m., Cuidad Juarez, 1902, Pringle 9922 (G.); Lake Santa 
Maria, 1899, ZH. W. Nelson 6400 (G.); Coanvma: near Saltillo and 
Rinconada, Gregg (corypr: G.); west of Mapimi, 9 May 1847, 
Gregg 21 (coryPe: G.); Jimulco, 1885, Pringle 148 (G.); Saltillo, 
1898, Palmer 174 (G.); Parras, 1898, Palmer 437 (G.), 443 (G.); 
Vileca, 1905, Purpus 1002 (G.); Sierra de Barbacon, 1910, Rurpus 
4460 (G.) ; without definite locality, 1880, Palmer 620, 621, 622, 
623 (G.), Gregg 125 (G.); Nuzvo Lzon: calcareous mesas, El 
Carrizo, 1904, Pringle 13059 (G.); Monterey to Matamoras, 
April 1866, A. Weber (G.); Tamauurpas: San Fernando, Oct. 
1830, Berlandier 814 (G.), 2234 (G.); Duraneo: barren hills above 
Tlahualilo, 1000 m., 1905, Pittier 462 (U. 8.). —T. 2. Fic. 5. 
