456 NYCTAGINACEAE 



bracts lanceolate, acute; flowers whitish or pinkish, 8 or 9 lines long; fruit 

 2 l /2 to 3 lines long, narrowly obpyramidal, its much wrinkled wings gradually 

 narrowed upwards and truncate at summit. 



Death Valley region; north into Nevada and Oregon, east to New Mexico. 



Locs. Deep Spring Valley, Purpus 5822; Bishop, Heller 8346. 



Ref. ABRONIA TURBINATA Torr.; Wats. Bot. King, 285, pi. 31 (1871), type loc. Hot Spring 

 Butte, Humboldt Co., Nev., Watson. 



8. A. exalata Stand. Very similar to A. turbinata and perhaps only a 

 mere form of it ; leaves ovate to roundish, truncate at base, y 2 t 1 i nc h l n ; 

 flowers 5 lines long; fruit 2 lines long, with mostly 2 ridges or narrow wings 

 on one side, these ridges incurved and forming a sort of half-closed concavity ; 

 beak prominent for the size of the fruit. 



Southern Sierra Nevada, eastward to Nevada. 



Locs. Kern Eiver, ace. Standley; Owens Lake, Jepson 5126. 



Ref. ABRONIA EXALATA- Stand. Contrib. U. S. Nat. Herb. 12: 318, pi. 36 (1909), type loc. 

 Keeler, Inyo Co., Coville $ Funston 845. 



9. A. alpina Brandegee. Stems from perennial roots shortly branched, 

 forming dense mats, 3 to 6 inches across ; herbage glandular but blades mostly 

 glabrous; leaves orbicular to round-ovate, 2 to 3 lines long, the petioles 1 to 

 3 times as long; involucres 3 to 5-flowered, on peduncles 2 to 3 lines long; 

 flowers pink or white, 5 or 6 lines long, the limb 3 to 4 lines broad; fruit l 1 /^ 

 to 2 lines long, narrowed to both ends, 5-angled but not winged. 



High sandy meadows, 8000 to 9000 feet, southern Sierra Nevada from near 

 Mt. Whitney to Olancha Peak. 



Locs. Ramshaw Mdws., near Kern Peak, Mary HasJcell, Jepson 4953 ; meadows about 

 Templeton Mt., Jepson 4971. Plants very handsome, flowering profusely and forming a beauti- 

 ful lavender-pink fringe on the white sands bordering the meadows in this region. 



Ref. ABRONIA ALPINA Brandegee, Bot. Gaz. 27: 456 (1899), type Iocs. Monatchee Mdws. and 

 at Mt. Templeton, Purpus 1877, 1497. 



10. A. nana Wats. Peduncles 3 or 4 inches high, erect, scape-like, arising 

 from a dense tuft of leaves crowning the shortly-branched caudex of a per- 

 ennial root; herbage glandular-puberulent or the blades nearly glabrous; 

 leaves ovate to oblong, 4 to 10 lines long, mostly long-petioled ; involucre 

 about 13 to 20-flowered; bracts ovate to oblong-lanceolate; flowers 6 lines 

 long; fruit obcordate in outline, the wings membranous. 



Desert ranges, 6000 to 9000 feet, Mohave Desert east to Arizona and Utah. 



Loc. Rose Mine, San Bernardino Mts., Parish 3046. 



Refs. ABRONIA NANA Wats. Proc. Am. Acad. 14: 294 (1879), type loc. Beaver City, Utah, 

 Palmer 404%. ^- covillei Heimerl, Smithson. Misc. Coll. 52: 197 (1908), type loc. Inyo Mts., 

 Coville # Funston 1782; Stand. Contrib. U. S. Nat. Herb. 12: 316, pi. 34 (1909); "differs 

 from A. nana in its very minute pubescence which is not glandular and its ovate leaves, in 

 having lanceolate bracts which are not scarious and are smaller than in that species, and in its 

 smaller flowers"; fruit unknown. 



5. WEDELIELLA Cockerell. 



Prostrate herbs, ours perennial. Leaves of the opposite pairs very unequal. 

 Flowers reddish or white, 3 in each involucre. Involucres 3-flowered. solitary 

 on axillary peduncles, deeply divided into 3 sepal-like bracts. Calyx with 

 a short oblique tube and 4 unequal lobes. Fruit leathery, smooth and some- 

 what carinate on the convex side, the opposite side furnished with 2 low 

 parallel thin ridges, each bearing a row of stipitate glands and covered by 

 the inflexed toothed margins of the lateral wings. One or two variable species. 

 (Diminutive of Wedelia, Loefling's name for this genus, which is doubtless 

 derived from a personal name.) 



1. W. incarnata Cockerell. Stems slender, 1 to 2y 2 feet long; herbage 

 pubescent; leaves ovate, acute, the veins prominent on the under side, !/> to 



