Eucnide. LOASACEiE. 



237 



7. M. lasvicaulis, Torr. & Gray. Stout, 2 or 3 feet higli, branching : leaves 

 lanceolate, 2 to 8 inches long : flowers sessile on short branches, very large, light 

 yellow, opening in sunshine: calyx-tube naked, the lobes 1 to 1| inches long: 

 petals acute at each end, 2 to 2| inches long, the filaments and slender style a little 

 shorter : capsule 1;^ inches long, 3 to 4 lines in diameter : seeds very minutely 

 tuberculate, H lines in diameter. — Fl. i. 535; "Watson, Bot. King Exp. 114. 

 Bartonia Icevicmdis, Dougl. 3 Hook. Fl. i. 221, t. 69. 



From Santa Barbara ( Torrey) to the Columbia River, and more frequent east of the Sierra 

 Nevada, in the valleys and on dry foot-hills, to Salt Lake and Western Wyoming. Other spe- 

 cies of this section are common in Colorado and New Mexico. 



8. M. tricuspis, Gray. Apparently annual, 6 inches high or more, rather stout : 

 leaves oblong-lanceolate, 2 or 3 inches long, acute or acuminate, coarsely sinuate- 

 toothed, attenuate at base to a petiole, the upper ovate and sessile : flowers sessile 

 on the short branches : calyx-limb half an inch long : petals broadly spatulate, 

 light yellow, 12 to 15 lines long : filaments very numerous, shorter than the calyx, 

 linear, somewhat dilated above and marked by a transverse orange band, and pro- 

 longed into two lateral linear cusps nearly equalling the oblong-linear raither : style 

 stout and rigid, 3-cleft, equalling the stamens : capsule half an inch long. — Am. 

 Naturalist, ix. 271. 



Only two specimens have been collected, one at Fort Mohave {Cooper), the other in S. Utah, 

 Parry. The mature fruit and seed are unknown, and the species is probably to be excluded from 

 this section. 



§ 4. Seeds feiv, ohlong, pointed at base, ohscurely angled, smooth and shining, some- 

 what rugose : calyx-limh ^-cleft to beloto the middle : petals 5 : filaments all 

 filiform: capsule urceolate : leaves sessile, coarsely pinnatifid, with revolute 

 margins : a cespitose perennial, very densely and tenaciously hispid. 



9. M. Torreyi, Gray. Stems several from a perennial root, much branched 

 and densely tufted, 3 to 6 inches high : leaves oblong, an inch long, acuminate, 

 attenuate at base, deeply pinnatifid with about 2 (1 to 3) lobes on each side, which 

 are acuminate by the strong revolution of the margin : flowers solitary, axillary, 

 shorter than the leaves : calyx-limb 3 lines long : petals oblanceolate, 5 lines long, 

 pubescent on the outside : style cleft to the middle, not twisted : capsule ovate, con- 

 tracted below the broad summit, 2| lines long: seeds a line long. — Proc. Am. 

 Acad. X. 72. 



A very peculiar species, collected by Dr. Torrey in the dry valleys of Humboldt County, 

 Nevada, and also by Lcmvion in similar localities in Washoe County. 



2. EUCNIDE, Zuccarini. 

 Calyx-tube oblong ; the limb 5-lobed, persistent. Petals 5, united at base and 

 inserted on the throat of the calyx. Stamens numerous ; filaments all filiform, 

 adnate to the base of the petals and deciduous with them in a ring. Ovary short- 

 conical at the summit, 1-celled : style 5-angled, 5-cleft, the lobes often twisted : 

 ovules very numerous, covering the 5 prominent expanded placentae. Capsule 

 obovate, very many-seeded, opening by 5 valves at the short-conical summit. Seeds 

 minute, longitudinally striate. — Annual or biennial herbs, armed with stinging 

 hairs and barbed pubescence ; leaves alternate, cordate or ovate, petioled, lobcd and 

 serrately toothed ; flowers yellow, pedicelled, in terminal cymes. 



A genus of three species (or more), confined to Northern Mexico and the adjacent region ; made 

 a section of Mentzelia by Bentham & Hooker. 



1. E. urens, Parry. Stout, low, very hairy and pubescent : loaves broadly 

 ovate, 1 or 2 inches long, cordate or rounded at base, obscurely lobed, coarsely 



