l6 TRANS. ST. LOUIS ACAD. SCIENCE. 



10. L. RiGiDUM, Pursh. Fl. Am. Sept. 210. — Glabrate or slightly 

 puberulent, glaucous, a span to a foot high, mostly low and cespitose, 

 corymbosely branched above, the rigid branches more or less angled; 

 leaves rather remote, erect, narrowly lanceolate or linear (-5-1.5 X 5-20 

 mm.), mostly mucronate and i -nerved, the upper glandular-serrulate ; 

 stipular glands sometimes wanting; pedicels short or sometimes equal- 

 ing the large yellow flowers; sepals lanceolate, slender-pointed and 

 more or less awned, strongly 1-3-nerved, conspicuously glandular- 

 serrulate; petals obovate-cuneate, as much as 15 mm. long, and double 

 the length of the calyx, with short slightly bearded claws ; stamens equal- 

 ing or somewhat surpassing the sepals; styles often longer than the sta- 

 mens, distinct for about i mm. at top ; capsule ovoid, about one-third 

 shorter than the calyx, the false septa thickened for about one-third their 

 width from the back, slightly ciliate. — Saskatchewan to Texas and Mexico. 



A tall, pale-flowered plant collected on the Upper Missouri and in Ellis 

 Co., Kansas, is apparently a form of this species. A specimen from Mon- 

 tana {Scribner, 1SS3, 17, c.) is referred here, but it is apparently not glau- 

 cous and needs further investigation. I have also seen a single specimen 

 from Miami, Florida (^Garber), which is referred to the next by Chap- 

 man (Supplement, 611). 



Var. PUBERULUM, Engelm., in Gray's PI. Wright, i. 25, is alow, prom- 

 inently gray-puberulent form, with mostly smaller flowers, occurring 

 from Colorado to New Mexico, and west to California. 



11. L. Berlandieri, Hook. Bot. Mag. pi. 34S0, as L. Bereiidieri. L. 

 rigidtivi, var. .-' Befla?idieri, Torr. & Gr. I^. a?tiiuum, Nees. — Green, a 

 span to a foot high; stem cespitose, 'more or less corymbosel}' branched 

 and strongly angled above ; leaves broader and more spreading than in 

 related species (1-7X5-30 mm.), nearly all entire, pointed, more or less 

 3-ribbed, with or without stipular glands ; bracts smaller, glandular-ser- 

 rulate; pedicels mostly decidedly shorter than the large yellow flowers ; 

 sepals lanceolate, tapering to a very acute awned tip, glandular-serrulate, 

 usually strongly 3-ribbed and often with an additional pair of ribs evanes- 

 cent below; petals obovate-cuneate, more or less crenulate, hairy at base, 

 10-20 mm. long, about twice the length of the calyx; capsule large (about 

 5 mm. long), ovoid, very obtuse below, about one-third shorter than the 

 calyx, the false septa thickened for about one-half their extent. — New 

 Mexico {Thurber, 275) and Texas. Specimens collected by Drummond 

 have the margins of the broad sepals often irregularly dentate and the 

 staminal tube ciliate. This form, which is L. Plotzii. Hook. /. c, and in 

 various herbaria, may, perhaps, be separated as Var. Plotzii. 



12. L. MULTICAULE, Ilook. in Torr. c^ Gray, Fl. N. Am. ii. 678. L. 

 selaginoides, Torr. & Gr., not Lam. L. hiidso7iioides, Planch. — Glau- 

 cous, an inch to a span or two high, cespitose, the slender rough-angled 

 stems simple below, cymosely few-branched above; leaves imbricately 

 appressed over the entir-e stem, minute (.5-1X5 mm.), narrowly trian- 



