438 



ZTGOPHYLLACEAE 



separate from the persistent axis; carpels 1-seeded, dehiscent ventrally. — Species 

 18, jMediterranean region (Europe, Asia, Africa), southwest Africa, Chile, Cali- 

 fornia. (G. C. Fagon, French botanist, 17th century.) 



1, F. calif omica Benth. (Fig. 221.) Stems erect, slender, very much 

 branched and thickly interlaced, scabrous on the angles, Vi to 2 feet high; stipules 

 acerose, 1 to 3 lines long; leaflets lanceolate to obovate, cuspidate, 2 to 3 lines long, 

 the lateral ones about equaling the petiole; flowers in cymes; petals crimson, obo- 

 vate, obtuse, shallowlj' cupped on the upper 

 side, clawed, spreading almost rotately, 2 to 4 

 lines long; fruit 2 lines long, much shorter than 

 the deflexed peduncles. 



Washes and canons, 100 to 1500 feet: 

 throughout the Colorado Desert. East to Ari- 

 zona, south to Lower California. Apr. 



Locs. — Vidal, near Whipple Mts., Newlon 557; 

 Corn Sprs., Chuckwalla Mts., Mun2 4' Keck 4790 ; Beals 

 Well near Niland, Jaeger; Painted Canon, n. of Mecca, 

 Jepson 11,685 ; Palm Canon of Mt. San Jacinto, Neiv- 

 lon 456; Coachella, canon e. of, Schellenger; Indian 

 Wells, Parish 20,005 ; Borrego Sprs., canon w. of, Jones; 

 San Felipe Narrows, e. San Diego Co., Jepson 12,531; 

 Vallecito, Jepson 8553 ; Mountain Sprs., e. San Diego 

 Co., Parish 9024. 



Var. barclayana Benth. Stems prostrate or de- 

 cumbent, granulose-glandular, not scabrous; leaflets 

 rhomboidal, 3 to 7 lines long. — Colorado Desert: 

 Painted Canon, n. of Mecca, Jepson 11,662 ; Coral Eeef, 

 sw. of Coachella, Clary 1644; Split Mt., T. Brandegee ; 

 Coyote Wells, sw. Imperial Co., Newlon 400. South to 

 Lower California. 



Eef s. — Fagonia caufornica Benth. Bot. Sulph. 10 

 (1844), type loc. Magdalena Bay, L. Cal., Hinds; Jep- 

 son, Man. 604 (1925). F. laevis Stand. Proc. Biol. Soc. 

 Wash. 24:249 (1911), type loc. Yuma, Ariz., Jones. 

 Var. barclayana Benth. Bot. Sulph. 10 (1844), type 

 loc. Magdalena Bay, L. Cal., Barclay ; Jepson, Man. I.e. 

 (1925). F. barclayana Bjdh. N. Am. Fl. 25:104 (1910). 

 F. calif omica var. glutinosa Vail, Bull. Torr. Club 22 : 229 (1895), type loc. Sonora, Mex., Pringle. 

 F. viscosa Eydb. N. Am. Fl. 25:104 (1910). 



Fig. 221. Fagonia californica 

 Benth. a, flowering branch, X % ; 6, 

 long. sect, of fl., X 21/0 ; c, fr., X 3. 



4. LARREA Cav. 



Evergreen rank-smelling and copiously resinous shrubs. Leaves as if diver- 

 gently 2-lobed, really consisting of 2 leaflets sessile on the short rachis by a broad 

 base. Flowers yellow, terminal and solitary on the numerous short lateral branch- 

 lets. Sepals deciduous. Petals clawed, gnawed at base. Stamens on a small 10- 

 lobed disk, the filaments with a laciniate-toothed scale at base on the inside. Ovary 

 5-celled, the cells about 6-ovuled; style slender, with 5 stigmas. Fruit globose, 

 densely white-hirsute, the 5 carpels at length separating from the axis as indehis- 

 cent 1-seeded parts. — Species 4, warm diy regions of North and South America. 

 (J. A. de Larrea, Spanish promoter of science.) 



1, L. tridentata Cov. var. glutinosa Jepson. Creosote Bush. Dark green 

 shrub, 2 to 5 feet high, the branches ringed with a black-glandular band at the 

 nodes and the leaves very resinous; leaflets oblong, somewhat curved, 2 to 5 lines 

 long; petals twisted half around so as to resemble a turbine wind-mill, 3 to 4 lines 

 long; fruit 2% lines long, beaked by the style. 



Dry desert valleys and mesas and mountain slopes and cailons, 100 to 5500 feet : 

 Inyo Co.; Mohave and Colorado deserts. East to Texas, south to Mexico. Apr.-May. 



