63 



late and 3-4 lines long, shorter than the rhombic-ovate cap- 

 sule; flowers light-colored, fully 1 inch long, abruptly ventri- 

 cose at end of calyx tips and 4-5 lines wide, arched, upper 

 lobes longer than the lower; sterile filament barely exserted 

 and long-viilous. This is often confused with P. Jamesii, 

 which has narrower calyx lobes and no enlarged root leaves. 

 This was probably included as a part of his P. cristatus by 

 Nuttall at least in his Eraser's catalogue. This is common on 

 the Green River Desert, Wyoming, at Granger and Green 

 River and appears to have been first collected since the time 

 of Xutt-nll by Cleburne, June 27, 1875. It is also A. Nelson's 

 No. 4716. 



Pentstemon subulatus n. sp. 



Allied to P. centranthifolius ; strict, erect, tufted, stems 

 simple and with narrow thyrsus; glabrous and glaucous 

 throughout, root leaves occasionally obovate, mostly spatu- 

 late to oblanceolate, all short-petioled ; stem leaves all sessile 

 with cordate base and grass-like, linear-subulate, 2-4 inches 

 ^*^"§r» gradually reduced above to subulate bracts; internodes 

 longer than the upper leaves; flowers red, narrowly tubular, 

 1^ inches long, the lobes oval 1 line long and a little spread- 

 ing, the tube i>4 Hnes wide, the throat 2i^ lines wide; stout 

 peduncles all opposite, 1-2 inches long, 2-5-flowered, appressed, 

 occasionally proliferous, slender pedicels 4-6 lines long; calyx 

 hemispherical 2 lines long, the lobes reniform-ovate with a 

 triangular tip, hyaline below and 2 lines long; anthers ex- 

 planate, the cells short and broad; sterile filament enlarged 

 above and glabrous; length of peduncles and pedicels vari- 

 able, sometimes the pedicels are 9 lines long and the pedun- 

 cles 2 lines long, but the habit and floral characters are con- 

 stant. The tvpe is from Plackberry, Arizona, April 25, 190o. 

 Other specimens are from Wickenberg, Arizona, May 5. 190.5, 

 with the short peduncles and long pedicels ; and Hillside, 

 Ariz.. May 1, 1903, with calyx lobes havmg subulate tips. 

 Pentstemon confusus var. patens. 



Like the type except the flowers, which are about 6 hnes 

 long with short tube more abruptly widened into the throat 

 and short lobes but Uttle spreading, peduncles often 1 inch 

 Jong and soreading, forming an open and not compact thyrsus, 

 stamens as long as the calyx tube, stenle filament as in the 

 type, plants 6-18 inches high. Lone Fine, California, /OOO feet 

 aJtitude, May 14, 1897. 



