115 
pitted.—Along the coast; reported from Galveston to Corpus Christi, but probably 
farther south. 
5, Gi. sinuata L. Stems ascending or decumbent, simple or branched, 3 dm. or 
more high, more or less strigose-pubescent and puberulent: leaves oblong or lance- 
olate, 2.5 to 3.5 em. long, sinuately toothed or often pinnatifid, the lower petioled: 
calyx and ovary subvillous: apsule 2.5 to 3.5 em. long: seeds strongly pitted.— 
Throughout Texas. The following forms have been recognized as varieties : Var., 
MINIMA Nutt. is a slender reduced form, 1-flowered and often nearly glabrous. Var. 
AIRSUTA Torr. & Gray is densely hirsute, with appressed and spreading hairs, and 
the seeds less strongly pitted. Var. GRANDIFLORA Watson has larger flowers, the 
petals 2.5 to 3 cm. long, and is often decumbent. 
*  * Caulescent : flowers nodding in the bud, white turning rose-color : capsules sessile 
mostly linear: seeds in a single row. 
6. GG. pinnatifida Nutt. Annualor biennial: stem decumbent at base and diffusely 
branched, or subsimple and erect, 7.5 to 30 em. high, canescently puberulent or sub- 
hirsute: leaves oblanceolate or linear-Janceolate, 2.5 to 7.5 em, long, mostly deeply 
sinuate-pinnatifid with linear lobes, the lower spatulate and long-petioled, less deeply 
pinnatifid or entire: calyx-tips not free, the throat naked: seeds oval. not angled, 
finely pitted—Western Texas, from Indian Territory to the upper Rio Grande, 
+. G&. trichocalyx Nutt. Annual: stems mostly stout, 15 to 30 em. high, white 
and shining: glabrous or canesceutly puberulent or subvillous: leaves linear to ob- 
long-lanceolate or rhomboidal, 5 to 0 em. long, acute or acuminate, attenuate intoa 
long petiole, repandly denticulate or sinuate-pinnatifid with irregularly unequal seg- 
ments, or the lowest entire: calyx very villous: tips not free, throat naked: seeds 
smooth, lance-linear, subangled.—Sandy plains and hills west of the Pecos, 
8. CE. albicaulis Nutt. Stems from a perennial subterranean rootstock, erect, 15 
to 120 cm, high, white and often shreddy : glabrous or puberulent: leaves linear to 
oblong-lanceolate, 2.5 to 7.5em. long, sessile or attenuate at base or abruptly petioled, 
entire or repand-denticulate, or sinuate-pinnatifid towards the base > calyx-tips free, 
throat naked: seeds smooth, lance-linear, subangled.—Sandy ground, west of the 
Pecos. A very variable species. 
9. CH. coronopifolia Torr. & Gray. Stems from a perennial subterranean root- 
stock, erect, branched, 15 to 45 em. high: canescently puberulent, often more or less 
hispid: leaves narrowly oblanceolate, 2.5 to 5 em. long, sinuately pinnatifid or more 
usually pectinate-pinnatifid, the linear segments as broad as the rhachis: calyx tips 
short, free, throat very villous: seeds ovate, angled, tuberculate.—Valley of the 
Pecos and westward. 
* * Caulescent : capsules obovate or clavate, often pedicelled, quadrangular, the valves 
riobed and the angles more or less strongly winged (except in No. 10). 
+ Flowers yellow, erect in bud. 
10. CH. linifolia Michx. Erect, very slender, simple or diffuse, 15 to 40 em. high, © 
glabrous, the branchlets and capsules puberulent: radical leaves oblanceolate, the 
cauline linear-filiform, 12 to 24 mm. long, numerous and fascieled: petals 2 to 6 mm. 
long: stigmas short: capsules 4 to 6 mm. long, sessile.—Extending into ‘Texas from 
Louisiana and Indian Territory, and probably within our range at the north. 
11, Gh. Spachiana Torr & Gray. Erect, simple or branched, 15 to 40 em. high, 
puberulent: leaves linear to oblanceolate, 2.5 to 5 em. long, obtuse, entire: flowers 
axillary, small: capsules pubescent, nearly sessile, slightly winged toward the apex,— 
In the valleys of the Brazos and Colorado. 
+ + Flowers white or purple, nodding in the bud. 
12. CE. speciosa Nutt. Stems froma perennial subterranean rootstock, erect or 
ascending, 15 to 60 cin. high, branching : puberulent or canescently pubescent, rarely 
subvillous: leaves oblong-lanceolate to linear, 2.5 to 10 em. long, acute, attenuate at 
