148 



35- P- MACRADEXIA, A.Gray, PI. Wright., i. 39. (1852). 



Cinereous-pubescent; 2-10' high; stem very stout, 

 woody, twisted, procumbent, much branched; leaves alter- 

 nate, very numerous, oblong or oblong-lanceolate, 2'^-3'^ | 

 long, obtuse, densely cinereous-pubescent, with comparatively 

 large, roundish, black or yellowish-brown glands, more 



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numerous upon the under surface; flowers solitary, scattered, 

 almost sessile; wirtgs 2''''-2^^'' long, obovate or oblong- 

 obovatc; lateral petals as long as, or longer than, the keel, 

 narrow, curved near the truncate or retuse tip; keel some- 

 what three-lobed, naked, without crest or beak; stamens 

 eight la number, filaments united almost to the anthers; 

 style slender, curved above the middle, not dilated, neither 

 cucuUate nor auriculate; mature capsule ovate, compressed, 

 about 3'^ long, emarginate, puberulent; seeds narrowly obo- 

 void, curved, densely appressed-hairy, caruncle helmet-shaped 

 or miter-shaped, with three short, acute lobes 



Texas. — 1851, Geo. Thurber; C. Wright, No. loi; ** Rio 

 Grande," 1848, Wright; El Paso, 1881, G. R. Vascy; 1858, 

 F. Dieffenderffer, No. -j^^ ^'Western Texas to Kl Paso. New 



Mexico." i8ao. C\^7^^ Wrurhf Vn 



I o I . Nciv Mexico. — 1851 



— 1852, C. Wright, No. 1348. Arizona. — Santa Cruz. 1884, 

 W. F. Parish; -Hills near Tucson," 1883, C. G. Pringle; 

 *'Camp Grant," 1 867, Dr. Ed. Palmer; ''Santa Catalina Mts.," 



1881, J, G. Lemmon, No. 125. 



Type in Herb. Gray. 



36. P. OVALIFOLTA, A.Gray, Fl. Wright, i. 39, (1852). 



Velvety-pubescent; 3-10' high; stems few or many 

 from a stout, woody base, erect or ascending, flexuous, leafy 

 to the summit, simple or branching; leaves numerous, alter- 

 nate, ^'~V long, the lower, smaller ones round-ovate, the 

 larger ovate, oval or ovate-elliptical, the uppermost often 

 ovate-lanceolate, acute, the rest more or less obtuse, though 

 often mucronate, both surfaces, but especially the lower, more 

 or less papillose and pubescent, the margin spreading-cili- 

 ate, petioles very short; flowers greenish-yellow, the lower 



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