394 
** * Involucrat glands with margin truncate or retuse or more or Teas long 2-horned: 
stem-leaves scattered: inflorescence umbellate. 
«= Seeds furrowed lengthwise or ornamented with longitudinal series of honeycomb-like 
reticulations. 
49. E. Peplus L. Glabrous annual, erect or ascending (1 to 2.5 dm. high): leaves 
petioled, thin, round-obovate, obtuse or retuse, entire, the upper floral ones sessile 
and obovate: umbel 3-rayed, then forking: involucre turbinate, with ovate fim- 
briate lobes; glands long-horned: lobes of the pod 2-wing-crested on the back: seeds 
ash-colored, ovate subhexagonal, 2-grooved on the inner face, pitted on the back,.— 
In woods on the Mexican side of the Rio Grande and very likely to be found on the 
Texan side. 
50. B. Peplidion Engelm. Erect glabrous annual, much branched from the base 
(1 dm. high): leaves linear-oblanceolate, obtuse or retuse, from a narrow base, the 
upper oblong-linear: umbels of 3 dichotomous rays, with lanceolate acute bracts: 
involucre turbinate, the oblong lobes minutely dentate; glands long-horned: styles 
shortly bifid: pod depressed, not winged: seeds ovate truncate, subhexagonal, 
2-grooved on the inner face, pitted on the back,—Sandy soils of southwestern Texas, 
DL. B.tetrapora Engelm, Ereet, glabrous: leaves cuneate, obttise and mostly 
retuse or obeordate: umbel trifid: bracts spatulate: involucre with small ovate 
lobes; the crescent-shaped glands long-horned: pod glibrous: seeds ovate-truncate, 
the outer smoothish.—Extending into Texas from the Gulf States. Var. BerLan- 
DIERT Boiss. has smaller leaves and seeds with inner face 4 to 6-punectate and outer 
somewhat irregularly 15 or 16-punctate.—‘ Near Bejar.” 
+ + Seeds irregularly pitted or rugose-reticulate, 
52. B. longicruris Scheele. Glabrous: stems simple or many from the base: um- 
bels of 2 or 8 bifid rays, subcorymbose: leaves crowded, minute, cnneate-spatulate, 
obtuse or retuse, with a long attenuate base; the upper obovate, the floral some- 
what densely imbricated, transversely oblong, very obtuse: involucres concealed by 
the floral leaves, with ovate minutely dentate ciliate lobes and long-horned glands: 
seeds oblong, whitish, deeply many-punctate. (H. peploides Nutt.) 
Texas to Arkansas. 
53. B. commutata Engelm. Stems branched from a commonly decumbent base 
(1 to 3 dm. high): leaves thin, obovate, obtuse; the upper all sessile, the upper floral 
ones roundish-dilated, broader than long: umbel 3-forke 1: involuere campanulate, 
with ciliate dentate lobes and long 2-horned glands: pod obtusely angled: seeds 
ovate, pitted all over (2 mm, lony).—Brazos Santiago, 
54. BE. Roemeriana Scheele. Glabrous: stem slender, erect (1.5 dm. high): 
umbel 3-rayed, mostly loosely dichotomous: leaves thin, entire or repand: the lower 
Irom western 
smaller, ovate-orbicular, retuse, long-petioled; the upper obovate-oblong, the floral 
broad and connate to the middle: involucre turbinate, with short ovate denticu- 
late lobes and semilunar glands with horns scarcely as long as the broad gland: 
seeds ovate, deeply sulcate-reticulate. 
55. BE. campestris Cham. & Schl. Glabrous and fruticose: branches slender, 
virgate, densely leafy (naked when older): umbel rays 3 to 5, mostly dichotomous: 
leaves firm, entire, subpetioled linear (rarely oblong)-lanceolate, acute and mucro- 
nate: upper and floral ones ovate or elliptical and obtuse: involucre campanulate, 
hairy within, the lobes triangular-oblong; glands semilunar, with horns shorter than 
the broad gland: pod ovate, depressed: seeds ovate, black-punctate.—Limpia 
Recorded only as “ 'Texas.” 
canon, 
56. E. montana Engelm. Glabrons and glaucous perennial, with many stems 
ascending from a cylindrical rootstock, densely leafy: leaves thickish, entire, sub- 
sessile, ovate, obtuse, rounded at base; the floral reniform, truneate-cordate at base: 
umbels repeatedly dichotomous; involucre turbinate, roughish within, with oblong- 
