. 356 
calyx purple, campanulate, 3mm. long, equaling the fruit: stamens 3; fruit obovate, 
glabrous, with narrow salient ribs.—Ravines and rocky hills, Presidio del Norte. 
July-August. 
11. B. Wrightii Gray. Stems erect and slender from an annual root, loosely 
branched, with the branches glandular-viscid: leaves small, oblong-obovate, undu- 
late, black-punctate, white below: peduncles paniculately spiked, bearing few flow- 
ers on very short pedicels: bracts and bractlets minute, purplish, deciduous, 3 to 
each flower: calyx smaller than in the last, and pale: fruit barely 3mm. long, obovate, 
glabrous, wrinkled between the ribs.—Pebbly hills near El Paso and Chenate Moun- 
tains. 
12. B. erecta L. Annual, often rather stout, scabrous-puberulent or nearly 
glabrous: leaves broadly ovate to oblong, usually acute, 2.5 to5cm. long, more or 
less exceeding the slender petioles, minutely black-dotted, paler beneath: panicle 
very open: bracts minute: fascicles usually 3 to 5-flowered: stamens 2: fruit sessile 
or short-pedicellate, nearly 4 mm. long, glabrous, truncate, rugulose between the 
ribs. —Chenate Mountains, 
13. B. anisophylla Gray. Stems glabrate, diffuse: leaves ovate-cordate, unequal, 
short-petioled, undulate, glabrous, white beneath: flowers loosely subcymose, 
short-pedicelled: bractlets 3, persistent, lanceolate, acute: calyx purple, rotate, 
Lem. broad: stamens 5 to 8, much exserted together with the style: fruit obovate- 
oblong, glabrous, not truncate, narrow-ribbed, 3 mm, long,—Chenate Mountains and 
the Great Canon.—Var. PANICULATA has larger and very diffuse panicles, smaller 
flowers mostly solitary at the extremity of the branchlets, calyx pubescent along 
the ribs, and purplish pubescent fruit (4 mm. long) rugose between the ribs.—Chenate 
Mountains (Nealley 405). 
14. B. hirsuta Willd. Perennial, hirsute and glandular-pubescent, the branch- 
ing stems 3 to9dm, long or more: leaves ovate, 2.5 to 5 cm, long, acutish, rounded 
at base, with undulate-sinuate margin and short petioles: panicle loose and divari- 
cate: flowers nearly sessile in small clusters terminating slender peduncles: bract- 
lets minute: calyx (red) and ovary 21mm, long: stamens 3: fruit 2 to 4 mm. long, 
clavate, obtuse, glandular-viscid.—Texas (most probably in the southern part). 
15. B. obtusifolia Lam. Viscid or minutely pubescent: stems straight, 6 to 12 dm. 
long: leaves ovate-oblong or ovate-lanceolate, mucronate, acute at base, smooth, 
whitish beneath, slender-petioled: peduncles axillary, solitary, 2-cleft, mostly shorter 
than the leaves: flowers capitate, minute: stamens 3: fruit clavate, acutish, with 
glandular ribs. (8. viscosa Lag.)—Pena (Duval County) and Limpia Cafon 
(Presidio County). 
ILLECEBRACEZ. (KNorwort FAMILY.) 
Small diffuse or tufted herbs, with small greenish or whitish flowers 
in clusters or dichotomous cymes, scarious stipules, a 4 or 5-parted 
calyx, stamens as many as the calyx-lobes and opposite them (being 
attached at their bases), a 2-cleft style, and fruit a one-seeded utricle. 
1. PARONYCHIA L. (WuHrIrlow-worr. ) 
Tufted herbs, with silvery stipules, clustered flowers, linear or oblong 
and concave sepals hooded and bristle-pointed, and 5 stamens.—Occa- 
sionally there are bristle-like rudiments of petals (set), 
* Annuals: sepals dilated and fornicate at apex within, horned or awned, 
1. P. Drummondii T. & G. Minutely pubescent: stems stout, erect, 2.5 cm. high, 
branching above into numerous cymes: leaves (of the branches) linear-oblong, 
