74 Coville New Plants from Southern California, 



lobes linear-lanceolate, acute, longer than the throat, with mar- 

 ginal nerves and an oblong or linear resin duct at the apex ; anthers 

 acutely sagittate at the base; anther-tips obtuse; styles 2 to 2.5 

 mm. long, linear, bluntly acute but short-hairy so as to appear 

 obtuse; achenium densely villous with spreading long white 

 hairs ; pappus copious, white, of conspicuously scabrous soft 

 bristles. 



This plant has the general appearance of a Tetradymia, but 

 the involucre and style-tips of Lepidospartum. The branches 

 resemble those of T. glabrata, except that the decurrent leaf-base 

 is made up of three slender ribs instead of one broad line. The 

 leaves too are very similar to the primary ones of that species. 

 The involucral bracts are thoroughly imbricated, and in this 

 respect are quite different from those of any Tetradymia; yet 

 their texture and pubescence are the same. The pappus and 

 achenia closely resemble those of T.__glabrata and T. cancsccns 

 incnnis. The median nerve of the corolla lobes in Tetradymia 

 and in Lepidospartum squamatiun, which are really resin ducts, 

 are here reduced to large linear or oblong apical resin glands not 

 produced to the base of the lobe. The anther tip is really acute 

 but from the hairs about it appears obtuse, and somewhat re- 

 sembles that of Tetradymia. The plant forcibly suggests the 

 reuniting of Lepidospartum with Tetradymia, as a subgenus, a 

 position in which Dr. Gray * once placed it, but the involucres 

 of the two genera are of quite different types. 



Type specimen in the United States National Herbarium, No. 

 558, Shockley, 1888 ; collected in August, 1888, in Soda Springs 

 Canon, Esmeralda County, Nevada, by W. H. Shockley. 



Mentzelia reflexa sp. nov. 



Plant annual, 20 cm. or less high ; stem stout, diffusely branch- 

 ing from the base, brownish white and striate when dry, hirsute, 

 as well as the leaves and calyx lobes, with retrosely barbed, as 

 well as with upwardly denticulate, hairs ; leaves from linear-ob- 

 lanceolate below to ovate or even hastate above, short-petioled 

 or sessile, all irregularly sinuate-dentate or the lowest almost 

 pinnatirid ; flowers single on short usually 1- or 2-leaved axes 

 in the forks of the stem ; ovary broadly oblong, 4 to 5 mm. long, 



*Proc. Amor. Aosid. Sri., TX, 1874, 207. 



