CATALOGUE. 227 



men, and have therefore been obliged to quote the description entire. — 

 Plate XXIII. Fig. 1. Branch, natural size. Fig-. 2. Flower, laid open, 

 enlarged about 5 diameters. Fig. 3. Cross-section of fruit. 



Abronia ctcloptera, Gray. — Southern Colorado (809, 815) and deserts 

 of New Mexico. 



Boerhaavia* Wrightii, Gray (Amer. Jour. Sci. 2, 15, 322).— Arizona. 

 Erect, branching, viscidly glandular-pubescent, especially above ; leaves 

 petioled (or sessile above), lanceolate ; inflorescence in a loose, branching 

 panicle ; bracts purplish, 3 to each flower, fimbriate ciliate on the margin ; 

 calyx border spreading, salver-shaped ; stamens 2 ; fruit obovate, 4-angled 

 or ribbed, somewhat wrinkled, roughened between the angles, 1-2" long. — 

 Cienega, Arizona, at an altitude of 3,500 feet (570). (157 a, Loew, 

 Arizona ) 



Boerhaavia erecta, L.— Erect, " branching from the base, swollen at 

 the nodes," glabrous or nearly so ; leaves petioled lanceolate to oval, dark 

 glandular-dotted and slightly pubescent ; panicle disposed in 3-5-flowered 

 clusters ; stamens 2. The narrowly obconical fruit evidently truncate, dis- 

 tinctly 5-angled, "flowers small, purple". — Cienega, Arizona (588), along 

 with the preceding. 



Boerhaavia Grahami, Gray. — Erect (not climbing, but spreading over 

 lower herbs), woody at base, herbaceous above and glabrous and glaucous ; 

 leaves 1-1|' long, nearly as wide, margin somewhat undulate, cordate at base; 

 petioles 4—6" long; common peduncles axillary, much exceeding the leaves; 

 special peduncles about six, 2-4" long, umbellate; scales of involucre 1-2" 

 long, greenish, pruinose, perigonium black below, greenish and somewhat 

 short pubescent above; pistils and stamens exserted; stigma capitate; fruit 

 terete, glandular at the apex. Dr. Torrey, in Bot. Mex. Bound, p. 172, 

 thinks this may safely be assigned to B. scandens, L. So far as Choisy's 

 description of it goes, DC. Prod. vol. 13, pars 2, p. 454, 1 can see no reason 

 why it should not, and have simply described it under this name, because 

 it has been so identified by my friend Dr. Gray. — Head of the " Cienega", 

 Southern Arizona (590). 



Boerhaavia spicata, Choisy. — Erect, annual, somewhat pubescent; 



* Bokkiiaavia, L.— See Appendix to vol. v, Kiug's Report, p. 475. 



