CATALOGUE. 123 



about 2' long, broad in the throat; petals yellow, G-12" long; capsule J— V 

 long, hairy, though attenuated toward the base ; seeds oval, indistinctly 

 tuberculated; stamens shorter than the petals ; stigma discoid. — Camp Bowie, 

 Ariz. (460). Var. lavandul^folia, S. Watson. {CEnothera lavandulafolia, 

 T. & G.) — Much smaller; leaves linear, hairy, obtuse, 4-12" long; calyx- 

 tube much more slender and the "calyx-segments less attenuated above". — 

 Collected by Dr. Loew in Arizona. Widely different in appearance. Var. 

 Fendkri, S. Watson, may be usually known at a glance by being glabrous, 

 having oblong lanceolate leaves and larger flowers, with a broad throat. It 

 comes from the same region. 



CEnothera Greggii, Gray (PI. Fendleri, p. 46). — "Scarcely more 

 than a variety of the last. More shrubby and diffuse, low, viscidly pubes- 

 cent or more or less hirsute ; leaves ovate to oblong, 1-3' long, acute, 

 mostly sessile; flowers mostly terminal, calyx-tube slender, 8-15"; petals 

 acutish, 3-6" long, capsule £' long." — (Watson, Proc. Am. Acad, viii, p. 

 590.) Arizona. 



CEnothera alyssoides, Hook. & Arn. — Utah. 



CEnothera Boothii, Dougl. — Nevada. 



CEnothera scapoidea, Nutt. — Utah. Also, var. purpurascens. "Flowers 

 larger, pinkish-white or purplish, rarely yellow, tube 2-3" long ; petals 3-4" 

 long." — (Watson.) Nevada.* 



Gaura coccinea, Nutt. — Perennial, from a woody root, canescent ; 

 leaves lanceolate or linear, entire or irregularly sinuate dentate, h-\% long; 

 bracts persistent, about as long as the mature fruit ; reflexed calyx -lobes a 

 little longer than the tube ; style pilose at base ; stigmatic indusium annular, 

 margin entire or nearly so ; fruit canescent, contracted in its lower third 

 into a thick terete neck. — Nevada, Arizona, and Colorado (160, 161). 

 Smooth form (159), Colorado. 



Gaura sp. ?, No. 233. — Willow Spring, Arizona, 7,195 feet altitude. 

 In the absence of proper fruit, on which I must depend to aid in assigning 

 this specimen to a place, I felt inclined to regard it as merely a form of G. 

 coccinea, which the structure of the flower much resembles. Dr. Gray (who 



* II is but just that I should state (what is, however, obvious) that in describing the species of 

 CEnothera I have drawn largely upon Mr. Watson's admirable monograph of the genus. See Proc. Am. 

 Acad. vol. viii, pp. 573-618. 



