512 HYDROPHYLLACE^E. Phacelia. 



5 to 9 obovate or oblong mostly entire divisions ; the upper with dilated and some- 

 times auricled and partly clasping base ; the lower with margined petiole : racemes 

 geminate or panicled, very loose : pedicels as long as calyx : corolla blue with yel- 

 lowish tube (barely 2 lines broad), little surpassing the spatulate enlarging calyx- 

 lobes : capsule globular, 20 — 24-seeded : seeds cylindraceous, incurved, very deeply 

 rugose transversely and tuberculate. — Bot. Mex. Bound. 144; Gray, Proc. Am. 

 Acad. x. 327. 



Along the Rio Colorado (Parry, Bigelow), and eastward through S. Arizona to the Rio Grande. 



* % Corolla funnelform or cylindraceous ; the internal appendages vertical, long and 

 narrow, united more or less extensively to the base of the filaments : style more or 

 less hairy below : leaves pinnaiifid and with naked petioles : seeds finely reticulated 

 as well as coarsely rugose. (Phacelia § Euglypta, Watson.) 



+- Corolla white or pale purple, little longer than the calyx. 



26. P. Ivesiaua, Torr. A span high, diffusely branched from the base, hir- 

 sute-pubescent and glandular : leaves pinnately parted into 7 to 15 linear or 

 oblong divisions, Tarely twice pinnatifid : racemes loose, 6-20-flowered : appendages 

 of the corolla almost free from the filament : calyx-lobes linear : capsule oblong, 

 16 -24-seeded. — Bot. Ives Colorado Exp. 21. 



Arizona from the borders of California (Ives), Southern Nevada, and Utah. 



+- +- Corolla conspicuously longer than the calyx; the limb mostly bright purple or 

 violet-blue ; the throat and tube whitish or yelloivish. 



27. P. Fremontii, Torr. 1. c. A span to a foot high, much branched from the 

 base, viscid-puberulent : leaves simply pinnatifid into 7 to 15 obovate or short- 

 oblong mostly entire lobes : flowers short-pedicelled, crowded in an elongating 

 spike : funnelform corolla (3 to 5 lines long) fully twice the length of the spatulate 

 calyx-lobes ; the appendages united below to the filament : capsule oblong, 20 - 30- 

 seeded. 



From Kern County through Western Arizona and Southern Nevada to Southern Utah. 



28. P. bicolor, Torr. Diffusely branched from the base, barely a span high, 

 viscid-pubescent: leaves twice pinnately parted or merely pinnatifid into small 

 short-linear or oblong lobes: racemes or spikes loosely 10— 20-fl.owered : funnelform 

 corolla (5 to 7 lines long) about thrice the length of the almost linear calyx-lobes ; 

 the long and narrow appendages united for more than half their length with the 

 filament, forming a narrow tubular cavity behind it : capsule oval-oblong, about 

 16-seeded. — Watson, Bot. King Exp. 255. 



Eastern portion of the Sierra Nevada (Sierra.Co., Lcmmon, &c.), and adjacent parts of Nevada, 

 first collected by Dr. Anderson. The largest-flowered of these species ; the rather showy corolla 

 purple, with a yellowish tube and eye. 



29. P. gymnoclada, Torr. 1. c. Branched from the base, low, somewhat viscid- 

 pubescent; the primary branches decumbent, long and naked below: leaves obovate, 

 oval, or oblong, obtusely toothed or almost pinnatifid, mostly shorter than the 

 petiole : spikes several-flowered : the short-funnelform corolla (3 or 4 lines long) 

 not twice the length of the obscurely spatulate and hirsute calyx-lobes (its appen- 

 dages as in the preceding) : capsule oval, or oblong, 5-1 6-seeded. 



Truckee Pass and Winnemucca, Watson, Lemmon. Therefore probably within the eastern border 

 of California. Lemmon's specimens are better developed than Watson's, without such long naked 

 branches from the root ; the ovules about 12, only 4 or 5 ripening into pretty large seeds : the 

 capside oval or elliptical. 



30. P. crassifolia, Torr. 1. c. Diffusely branched, 3 or 4 inches high, viscid- 

 pubescent : leaves thickish and rather fleshy, roughish, half an inch or less long, 

 oblong-ovate, tapering into a short petiole, the loweT with some short blunt teeth, 



