FLOWERING PLANTS AND FERXS OF ARIZONA 737 



30. Phacelia crenulata Torr. ex S. Wats, in King, Geol. Expl. 40th 

 Par. 5: 251. 1871. 



Throughout the State except in the extreme eastern portion, 4,000 

 feet or lower, very common on plains, mesas, and foothills, February 

 to June. Southern Utah to New Mexico, Arizona, southeastern 

 California, and Baja California. 



Sometimes called "wild-heliotrope," Arizona's most abundant 

 species, very conspicuous hi spring with its rich violet-purple flowers, 

 the plant glandular-viscid and with an unpleasant, somewhat onion- 

 like odor. 



The prevailing form in Arizona is var. amhigua (M. E. Jones) 

 Macbride (P. amhigua M. E. Jones), which has the herbage hispid- 

 hirsute with long very slender hairs, in addition to the (sometimes 

 very scanty) glandular pubescence. The type collection of P. crenulata 

 Torr., however, has similar pubescence. P. intermedia Wooton, a 

 small-seeded form described by Yoss as intermediate between P. 

 corrugata and P. crenulata, has been collected, according to Yoss, at 

 Fort Yerde (Yavapai County), Duncan (Greenlee County), and 

 Tanque (Graham County). P. minutifiora Yoss. a form with the 

 corolla only 3 to 4 mm. long and wide, is known in Arizona only by 

 a collection at WIckenburg (Palmer 626), which is probably merely 

 a depauperate form of P. crenulata. 



.5. EMMENANTHE 



Plants annual, differing from Phacelia chiefly in the persistent, 

 cream-colored or pale-yellow corolla. 



Key to the species 



1 Capsule compressed, oblong: plant villous and glandular; stems erect; leaves 

 sessile or nearly so. often slightly clasping at base, the blades oblong, 

 pinnatifid: pedicels filiform, often longer than the calyx , decurved, the 

 flowers pendulous; corolla much longer than the calyx. 



1. E. PEXDTTLIFLORA. 



1. Capsule turgid, ovoid; plant glabrous; stems diffuse or decumbent: leaves 

 petioled, the blades obovate or spatulate, entire or few-toothed: pedicels 

 stout, shorter than the calyx, not decurved; corolla not, or but slightly, 

 longer than the calyx 2. E. glaberrima. 



1. Emmenanthe penduliflora Benth., Linn. Soc. London Trans. 17: 

 281. 1835. 



Southern Yavapai County to Pima County. 4.200 feet or lower, on 

 slopes and along streams, usually under bushes, March to May. 

 Southern L'tah and Arizona to California. 



\Yhisperingbells, so-called from the rustling sound made by the 

 persistent dry corollas. 



*2. Emmenanthe glaberrima Torr. ex S. Wats, in King, Geol. Expl. 

 40th Par. 5: 257. 1871. 



Militzia glaberrima Brand, Pflanzenreieh IV. 251: 131. 1913. 



Reported by A. Gray (Syn. EL ed. 2, 2 *: 171. 1886) to have 

 been collected by Newberry at Flax River (an old name of the Little 

 Colorado). The plant has not been collected since in Arizona, so 

 far as the writers know. It is known otherwise only from Nevada. 



