182 University of California Publications in Botany. [VOL. 3 



our eastern borders to southern Nevada ; Needles, Feb., 1886, Mrs. 

 Brandegee. 



4. E. Wallace! Gray, Proc. Am. Acad. xix. 25 (1883). Bahia 

 Wallacei Gray, Pacif. R. Kept. iv. 105 (1857). Actinolepis Wal- 

 lacei Gray, Proc. Am. Acad. ix. 198 (1874). 



Stem freely branching from the base ; the branches ascending, 

 2 to 10 cm. high : the copious matted wool tardily or not at all 

 deciduous : leaves spatulate or obovate, obtuse, mostly entire, 1 

 cm. or less long : heads short-pedunculate : involucre 5 mm. high, 

 its overlapping bracts not united : receptacle low-conical, obtuse : 

 rays about 10, yellow, 4 mm. long and nearly as broad: anther- 

 tips subulate: style-branches conical, acutish: pappus-paleae, 6 

 to 10, oblong or obovate, obtuse, erose, one-half to one-fourth as 

 long as the corolla. 



In gravelly or sandy soil: San Bernardino Valley; San 

 Jacinto Mts. ; east to Arizona and southern Utah. 



A form with the pappus reduced to a mere border comes from 

 the Santa Ana Eiver bottoms near Redlands, F. M. Reed, no. 784, 

 and Greata, no. 572, part, but it passes into the typical form at 

 the same locality. There is also a color form (Bahia rubella 

 Gray) in which the rays are pale purple and white or even dull 

 rose-color : western borders of Colorado Desert at San Felipe, San 

 Diego Co., Parry, ace. to Gray, also Brandegee, and Apr. 25, 1899. 

 Mrs. Brandegee; Vallecito, San Diego Co., Parish, no. 1625. It 

 will probably be found that color characters are no more con- 

 stant here than they are in Layia glandulosa, where analagous 

 forms occur. 



5. E. ambiguum Gray, Proc. Am. Acad. xix. 26 (1883), and 

 Syn. Fl. i. pt. 2, 330 (1884). Lasthenia (Monolopia) ambigua 

 Gray, Proc. Am. Acad. vf. 547 (1865). Bahia parviflora and B. 

 ambigua Gray, Bot. Calif, i. 382 (1876). E. paleaeeum Bran- 

 degee, Bot. Gaz. xxvii. 450 (1889). 



Annual, .5 to 3 dm. high: stem slender, ascending or erect, 

 freely and widely branched, especially from the base : tomentum 

 tardily deciduous from the leaves and stems: leaves alternate, 

 narrowly oblanceolate or spatulate and obscurely few-toothed, or 

 linear and entire, 1 to 2 or 4 cm. long : peduncles 1 to 5 cm. long, 



