395 
linear velvety lobes and truncate very short 2-horned glands: styles very short, 
bifid: pod ovate, scarcely elevated, punctate: seeds oblong, superficially pitted.— 
Limpia canon. 
+ + + Seed smooth, dark: smooth perennials with running rootstocks. 
57. E. chamzesula Boiss. Glabrous and glaucous perennial, with erect virgate 
stems branched from the axils: leaves rigid, entire, rounded at the subsessile base, 
oblong-lanceolate (12 to 18 mm. long), obtuse ; the upper linear, mucronulate, those 
of the umbel ovate-rhomboid, the tloral ones ovate with subcordate base: umbel 
5-rayed, mostly bifid: involucre turbinate-campanulate, roughish within, with the 
triangular lobes acute and the short 2-horned glands denticulate between the horns: 
styles united at base: pods and seeds ovate.—Chenate mountains, western Texas. 
58. B. Cyparissias L. Stems densely clustered (1.5 to 2.5 din, high): stem-leaves 
linear, crowded; the floral ones cordate: umbel inany-rayed: flowers yellowish: 
involucre short campanulate, with ciliate often retuse lobes, and shortly attenuate 
Y-horned crescent-shaped glands: styles short: pod granular, Escaped from 
gardens. 
2. REVERCHONIA Gray. 
Annual herb, with moncecious and dicecious flowers, staminate ones 
with 4-parted calyx of subherbaceous spatulate-oblong segments, short 
distinct filaments, and introrse anthers dehiscent lengthwise, 6-parted 
pistillate ones, with G-crenate disk, short thick emarginate-bilobed 
stigmas, short separate styles, 3-celled ovary, and the 3-celled globose 
pod with 2 seeds in each cell. 
L. R. arenaria Gray. Glabrous with spreading branches (4 to 5 dm. high): leaves 
alternate, short-petioled,oblong or narrow, entire, 3.5 em, long; stipules broadly subu- 
late, scarious: pistillate flowers short-pedicelled, either solitary in the axils, or in 
monccious plants solitary in a staminate fasciele: perianth greenish, at length pur- 
plish.—Near Dallas. 
3. PHYLLANTHUS L. 
Low plants, with 2-ranked alternate leaves, small stipules, monceci- 
ous axillary flowers, usually 5 or 6-parted calyx, no petals, mostly 5 
(often united) stamens erect in the bud, and the depressed pod with 
each carpel 2-valved and 2-seeded (seeds not carunculate). 
1. P. Carolinensis Walt. Slenderand branched, scarcely 3 din. high: leaves obovate 
or oval (1.5 to 2.5 em, long), short-petioled: flowers commonly 2 in each axil, almost 
sessile, one staminate, the other pistillate: calyx 6-parted: stamens 3: styles 3, each 
2-cleft: glands of the disk in the fertile flowers united into a eup: pod globose, 
smooth: seed striped with 6 lines of minutely raised points.—Common in south west- 
ern Texas. 
2. P. polygonoides Spreng. Suffruteseent (1.5 dm, high), with subsimple erect 
seabrous branches: leaves elliptical, smooth, short-petioled, very obtuse, 5 to8 mm, 
long, with white subulate stipules; flowers 2 or 3 in the axils: calyx-lobes oblong- 
obovate, with white margins: glands free, oblong: stamineal column shortly trifid: 
styles slender, with the lobes spreading and capitate at tip: pod globose: seed irregu- 
lar, punctate warty.—Dry sandy and rocky places along the Rio Grande from FE] 
Paso to the Gulf and the center of the State. 
8. P. abnormis Baill. Searcely 1.5dm, high, with woody base and flexnous stems: 
branches with 15 to 20 oblong-elliptical leaves rounded at apex (5 to 8 mm. long): 
