898 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Arizona: Portal to Paradise, Cochise County, altitude 1,600 to 1,730 meters, 
1914, Eggleston 10667, 10668 (N). About Portal, 1914, Eggleston 10916 (N). 
Mesas, Bowie Station, October, 1882, Pringle (G, N). Near Fort Huachuca, 
1894, Wilcox 413, 503 (N). 
Sonora: Near Monument No. 26, 1892, Mearns 1142 (N). San Bernardino Ranch, 
1892, Mearns 831 (N). 
Cuinuanva: Hills and plains near Chihuahua, 1885, Pringle 292 (B, G, K, N). 
Kl Paso to Chihuahua, Thurber 788 (G). Candelaria, 1911, Stearns 281 (N). 
Coanuita: Parris, 1880, Palmer 740 (G, K); in 1898, Palmer 434 (G, N). Sal- 
tillo, 1902, Palmer 286 (G, N). Pena, 1905, Purpus 1011 (G). 
Nuevo LE6n: Monterrey, Weber (G). Hills near Doctor Arroyo, 1904, Pringle 
13053 (G,N). From Monterrey to Lampasos, 1828, Berlandier 141 (G), 1401 
(type collection; B, G, K, Prod.). 
Durango: Mapimi, 1898, Palmer 434 (K, N). 
San Luts Potosi: Foot of mountains, Real de Coutorie (?), 1827, Berlandier 
1348 (G), 1354 (G, N). Without definite locality, 1878, Parry & Palmer 469 
(B, G, K). 
Zacatecas: Plains and low ridges, Cedros, 1907, Lloyd 16 (N), 30 (G). 
Mexico (Republic of): Without definite locality, Gregg 421, 527 (G). 
This species, the only one known to occur north of the Mexican border, is easily 
told by its discoid nodding heads and small ovate or oval leaves. It is sometimes 
called ‘‘varnish bush” or “tar bush” in the Southwest. It has a hoplike odor and a 
bitter taste. The leaves and heads are commonly sold in the drug markets of northern 
Mexico, and are taken in the form of a decoction for indigestion. The native name 
is “‘hojasé” or ‘‘hojasén.’”” Palmer notes that it is also employed as a remedy for 
female diseases. 
4. Flourensia ilicifolia T. S. Brandeg. Zoe 5: 238. 1906. 
Erect much-branched shrub, with grayish brown bark, the young branchlets slightly 
pubescent, resin-encrusted; leaves mostly crowded toward the ends of the branchlets, 
their blades 1.6 to 2.4 cm. long, 1 to 1.7 em. wide, yellowish green, rhombic-ovate, 
repand-dentate with 3 to 6 pairs of stiffly mucronate teeth, acute at each end, mucro- 
nate, coriaceous, glutinous, obscurely reticulate, the veins not prominulous, the 
lateral veins about 3 to 6 pairs; petioles flattened, puberulous and resinous, often 
purplish-tinged, 1.5 to 5 mm. long; heads solitary or 2 or 3 together at tips of branch- 
lets, about 22-flowered, on puberulous, resinous, about 3-bracted peduncles 1 cm. long; 
disk 1.3 to 1.6 cm. high; involucre 2-seriate, subequal, 6 to 6.5 mm. high, the phyl- 
laries oblong to oblong-ovate, obtuse, coriaceous, yellowish green, resinous and ciliate, 
not striate; pales broadened below the subtruncate apex, yellowish, with brown or 
purple-tinged apex, scarious-margined, nearly glabrous, nerved, 9 to 10.5 mm. long; 
disk flowers 5 or rarely 4-toothed (the teeth oblong, obtusish, 2 to 3 mm. long), 6 to 7 
mm. long, the tube 1.5 to 1.8 mm. long, the throat campanulate-funnelform; achenes 
narrowly cuneate, blackish, silky-villous, with white crustaceous base and very 
narrow border, 8 to 9.5 mm. long; awns 2, broadly lanceolate, attenuate, villous- 
ciliate, 2.5 to 4.5 mm. long, separate or united at base by a low crown which usually 
develops one or two lacerate squamell (2 to 3 mm. long) on each side of achene. 
TyPE Locatity: Sierra de Parris, Coahuila, Mexico. 
SPECIMENS EXAMINED: 
CoanuIta: Sierra de Parris, March, 1905, Purpus 1150 (type collection; B, G). 
This very distinct species is unique in the genus in its strongly mucronate-dentate, 
rhombic-ovate, short-petioled leaves. 
