99 



Flowers numerous, white ; segments of the corolla ovate- 

 acute, villous externally, rotate-campanulate. 



Fruit globose, very hirsute, with long, slender, soft, white 

 hairs somewhat flattened and twisted (but not hooked at the 

 apex) ; fruit subtended by a single ovate-acute or acuminate 

 floral leaf or bract. 



This species seems to be nearly allied to G. chamissonis of 

 Chili, but in that the angles are said to be " smootli," and leaves 

 " oblong," " deflexed," etc. Recently brought from Washoe by 

 Dr. J. A. Veatch. In several instances we observe the leaves 

 five-nerved, and the cusp occasionally bifid. 



Mentzelia veatchiana (Kellogg). Fig. 28. The new species 

 of Mentzelia, herewith presented, figured and described, was 

 recently brought by Mr. Andrew A. Veatch, from the vicinity 

 of Virginia City, Washoe. 



Stem low, (about one foot) branching from the base, lustrous, 

 light flesh-colored, branches alternate, short villous, root annual. 



Leaves remote, sessile, lower leaves linear-lanceolate, entire, 

 or pinnatifid, dentate above the middle ; hispid and scabrous 

 throughout, with minute barbate hairs ; the white hairs springing 

 from an indurated corneous base, or submuricate hirsute ; the 

 hairs with hooked prickles, in whorls, or sometimes scattered, of 

 diamond-like brilliancy ; upper leaves subcordate, coarsely den- 

 tate at the expanded base; apex (terminal lobe) long, attenu- 

 ated and entire (about twice the length of the expanded sub- 

 clasping lower lamina) ; scabrous margins, and mid-ribs hir- 

 sute. (N. B Upper leaves sometimes lanceolate pinnatifid.) 



Bracts leafy, subpinnatifid, lobed or coarsely (mostly) tri- 

 dentate, scarcely as long as the capsule. Two other smaller 

 bracteoles opposite at the base of the capsule, (usually rather 

 more than one-half the length of the capsule) three-lobed or 

 tridentate ; the middle lobe a little prolonged, cuneate at base. 



Flowers small, (petals scarcely three lines in length) bright 

 golden yellow deepening to rich orange at the claws or towards 

 the center ; petals ovate-oblong unguiculate, five in number, 

 twice the length of calyx segments, emarginate, apex slightly 

 bristly. 



Stamens and pistil equal, shorter than the petals, about twen- 

 ty, filaments filiform ; pistils connate, apparently simple, in- 

 cluded. 



Capsules cylindraceous, slightly narrower towards the base, 

 about half an inch long, hirsute calyx segments, crowning the 

 capsule, subulate one-half the length of the petals ; tuberculate 

 scabrous seeds somewhat cubical, in three series, six to eight or 

 more in each row. 



