32 BOTANICAL GAZETTE ' [JULY 



FL 10 : 270 ; not P. snffruticostis Dougl., Benth. in DC. 10 : 330. 

 Caudex woody, its branches prostrate spreading: the annual 

 herbaceous stems slender, erect, not crowded, sparsely * leafy, ■ 

 finely puberulent, \-2.^^ high : leaves linear-oblanceolate to spatu- 

 late, acute or obtuse at apex, tapering very gradually to the 

 slender base, 1-2''"' long, shorter than the internodes, nearly or 

 quite glabrous : inflorescence open ; the short peduncles at right 

 angles to the stem, with about three short-pediceled, nearly 

 erect flowers : sepals nearly linear, sparsely glandular-pubescent, 

 about 4™"^ long : corolla moderately ventricose, with sub-equal 

 lips, obscurely and sparsely glandular pubescent, a few long hairs 

 in the throat : the sterile filament moderately bearded to its 

 base. 



I 



The specimens before me were collected by Mr. H. N, Wheeler at 

 Sapinero, Colo., 1898, no. 446, and in my judgment are referable to P.caes- 

 pitosiis suffriiticosus Gray. As suggested by Dr. Gray, this seems to be a 

 distinct species, though clearly related to P, caespitosiis. 



Pentstemon Owenii, n. sp. — Perennial from a much branched, 

 cespitose, woody caudex, 1—2'^™ high : stems numerous, erect from 

 a more or less decumbent base, rather slender, glabrous, or with 

 an obscure puberulence, most of them tinged with purple, some 

 of them deeply so : leaves glabrous, numerous on the crowns 01 

 * the caudex (many of the branches of the caudex terminating in 

 short, slender, sterile, leafy shoots), narrowly elliptic (some of 

 the earlier ones from obovate to spatulate), mostly acute at apex, 

 2_4cm long, tapering cuneately at base into a petiole which is 

 usually much shorter than the blade (rarely nearly equahng 

 it); the stem-leaves several, the lower much like those of the 

 crowns, becoming narrower and lanceolate upward, passing into 

 the bracts of the inflorescence : thyrsus crowded, from capituh- 

 form to short spicate and somewhat interrupted-verticillate, 

 minutely glandular-pubescent especially on calyx and pedicels, 

 sepals lanceolate, one-third as long as the corolla, the broadisn 

 base scarious margined, the green central portion continued 

 into the acuminate tip : corolla violet-blue (or sometimes pur- 

 plish?), tubular, but slightly dilated upward, i 2-1 5™^ long, only 



