76 WILLIAM TRELEASE ON THE 



G. Hernandezii, DC. Prodr., i, GiO. Perennial and cespitose (?), large and 

 spreading, the lower nodes much dilated, loosely villous with often gland-tipped white 

 hairs; radical and lower leaves 50-75 mm. across, on jDetioles nearly a foot long, 3-cleft, 

 the basal divisions sometimes again lobed on the lower side, all ovate-oblong, cut- 

 toothed or lobed towards the apex; upper leaves much smaller, deltoid-cordate, 3-parted 

 the divisions acute and serrate-lobed, the ovate-lanceolate middle one largest; pedun- 

 cles not over an inch long; pedicels mostly shorter; sepals long-awned, the inner some- 

 what red-margined; petals white (?), half as long again as the calyx, spatulate, entire; 

 filaments ciliate; st^'les free for about 2 mm. — Iluachuca Mountains, southern Arizona 

 (Leviy/ion, 2651). Apparently the same as Mexican specimens (Schaff'ner, 191), but 

 not in fruit.— PI. 9, fig. 11. 



G. SiBiRicuM, L. Spec, 683. A slender-stemmed, repeatedly forked, short-villous, 

 Asiatic annual, having 3-5-parted leaves with coarsely serrate, broadly lanceolate divi- 

 sions; small, dirty-white, purple-veined flowers mostly solitary on bent pedicels an inch 

 long, the 2-bracted peduncles of equal length or shorter; sepals awned; petals al)Out 

 5mm. long; beak canescent, 15-18 mm. long; the divisions of the ovary puberulent and 

 sparingly villous, 2 x 4 mm.; seed 1 x 2mm., minutely reticulate-areolate. Collected as 

 a roadside plant on New York Island in 1867 {Denslow), and, as I learn from Doctor 

 Britten, observed near the same place within a year or two. It was also collected on 

 a refuse-heap, in Cambridge, in 1885 (Morong). — PI. 9, fig. 12. 



7. G. COLUMBINUM L. Spec, 682. Very slender-stemmed, spreading and prostrate, 

 hispid with a close gray pubescence which is retrorse except on the leaves and sepals, 

 not at all glandular; leaves more or less 3-5-dividcd and dissected into numerous linear 

 divisions; stipules setaceous-pointed; peduncles very long; pedicels at length an inch 

 or two long; sepals ovate, awned; petals pui-ple, about equalling the calyx, spatulate, 

 mostly eroded; beak 15-20 mm. long, with a long slender tip, appressed-hispid; styles 

 free for about 1mm.; divisions of ovary 2 X 3mm., nearly glabrous, keeled on the back; 

 seed subglobose, 1.5 X 1.75mm., deeply pitted. — Pennsylvania (Porter), Virginia (Cur- 

 tiss,Pech), Dakota (Gratfeller). Introduced from Europe, etc. — PI. 9, fig. 17; 10, fig. 

 7; 12, fig. 9. 



8. G. Caroliniaxum, L. Spec. 682. G. atrum, Moench. G. lanuginosum, Jacq. A 

 span to a foot high, stout-stemmed, spreading when large, loosely gray-pubescent and 

 mostly dirty-glandular; leaves incisely 3-5-parted, divisions cuneate, more or less deeply 

 ciat-toothed or dissected into linear lobes; peduncles and pedicels seldom over an inch 

 long, often densely crowded, the pedicels frequently somewhat bent in fruit; sepals ovate, 

 acuminately tapering to a prominent awn, with recui'ved margins; jietals rose-colored, 

 about equalling the calyx, obovate, emarginate; beak about 20 mm. long, short-pointed, 

 loosely villous or glandular; styles free for about 1 mm.; divisions of ovary 2x4 mm., 

 not keeled, villous-hispid, when ripe mostly black; seed 1.25 x 2.25 mm., low-reticulate. 

 — Open places, Canada to Washington Territory, south to Florida, California and 

 Mexico; most common in the South and West. — PL 9, fig. 13; 10, fig. 2; 12, figs. 6-7. 



Var. Tesanum, collected near IS'ew Braunfels, Texas, by Lindheimer, in 1848, diff"ers 

 in having deeply pitted round seeds like those of G. coUunhinum, but with the habit and 



