FLOWERING PLANTS AND FERNS OF ARIZONA ,4/ 



1. Hackelia ursina (Greene) Johnston, Gray Herbarium Contrib. 



68: 40. 1923. 



Echinos'permum ursinum Greene in A. Grav. Ainer. Acad. Arts 



and Sci. Proc. 17: 224. 1882. 

 Lappula ursina Greene. Pittonia 2: 1S2. 1891. 

 Lappvla leucantha Greene. Leaflets 1: 152. 1905. 

 Hackelia leucantha Brand. Pflanzenr. IV. 252-: 131. 1931. 



Southern Gila County and Greenlee County to Cochise and Pima 

 Counties. 5.000 to 8,000 feet, moist shaded places in the oak and pine 

 belts, not common. New Mexico. Arizona, and Chihuahua. 



2. Hackelia pinetorum (Greene) Johnston. Grav Herbarium Contrib. 



68: 45. 1923. 



Echinospermum pinetorum Greene in A. Grav. Amer. Acad. 



Arts and Sci. Proc. 17: 224. 1882. 

 Lappula pinetorum Greene. Pittonia 2: 182. 1891. 

 Hackelia floribunda var. pinetorum Brand. Pflanzenr. IV. 



252 2 : 127. 1931. 



Bill Williams Mountain (Coconino County), Chiricahua Mountains 

 (Cochise County). Santa Rita Mountains (Pima County . 6.000 to 

 8,000 feet, moist shaded places in the pinyon and pine belts, not com- 

 mon. New Mexico. Arizona, and Chihuahua. 



3. Hackelia floribunda CLehm.) Johnston. Grav Herbarium Con- 



trib. 68: 46. 1923. 



Echinospermum floribundum Lehm.. Nov. Stirp. Pugill. 2: 24. 



1830. 

 Lappvla floribunda Greene. Pittonia 2: 1S2. 1891. 



San Francisco Peaks. Grand Canyon, etc. (Coconino Comity). 

 7.000 feet or higher, stream sides and meadows in the pine and spruce 

 belts. Canada to northern New Mexico and Arizona, and southern 

 Nevada. 



7. MERTENSIA.* 4 Bluebells 



Broad-leaved perennial herbs, glabrous or with inconspicuous ap- 

 pressed hairs, never bristly; corolla blue (or pink when immature . 

 heterostyled. the throat cup-shaped or broadly cylindric. usually 

 twice as long as the erect or ascending lobes; nutlets minutely papil- 

 late and obscurely rugose, ovoid; plants of meadows and woodlands. 



Key to the sp> 



1. Pedicels distinctly strigose: calyx at anthesis cut to the base or nearly so, the 

 margin usually evidently ciliolate; leaves usually glabrous beneath and 



strigose above 1 . M. fbanciscana. 



1. Pedicels glabrous or at most merely pustulate: calyx at anthesis cut only to 

 beyond the middle or less, the margin not evidently ciliolate: Leaves 

 glabrous 2 . 

 2. Plant 10 to 20 cm. high; nutlets with a distinct, coarse, tabulate, reflexed 



margin: corolla tube glabrous within 2. M. macdovgalii. 



2. Plant 30 to 120 cm. high: nutlets not margined: corolla tube usually hairy 

 inside 3. M. abizonica. 



Reference: Williams. L. 0. A monograph of the genus mertensia in north America. Mo. Bot. 

 Gard. Ann. 24: 17-159. 1937. 



