FLOWERING PLANTS AND FERNS OF ARIZONA 629 



3. Sepals with both appressed and scattered spreading hairs, and with a purple 

 spot at the base of each spreading hair; cauline leaves usually deeply and 

 regularly pectinate-pinnatifid; capsules very slender, 1.5 to 2.5 mm. thick 



at base var. arizonica. 



3. Sepals with appressed hairs only, without purple spots on the buds; 1< 



subentire to shallowly and coarsely dentate; capsules usually 2.5 to 5 

 mm. thick at base (4). 

 4. Sepals with free tips 1 to 2 mm. long; buds usually 4-angled toward the 



tip var. decumbexs. 



4. Sepals without free tips; buds not at all 4-angled toward the tip. 



var. CIXERACEA. 



(1) The typical form occurs in Mohave and Yuma Counties, below 

 1,000 feet, sandy open places, February and March, ranging into the 

 deserts of California and Baja California. (2) The var. piperi Munz 

 has been collected at Fredonia, Coconino County {Jones, in 1929), 

 and ranges from eastern Oregon to eastern California, Nevada, and 

 Arizona. (3) The var. arizonica Munz occurs in Pinal. Maricopa, 

 and Pima Counties, 500 to 2.500 feet, February to May. and is known 

 only from Arizona. A collection on Hualpai Mountain, Mohave 

 Comity, 5.150 feet (Kearney and Peebles 12668), is also to be referred 

 here. A variant of var. arizonica is forma floccosa Munz, with the 

 long hairs on the sepals so closely set as to make the buds appear like 

 tufts of wool, known from Phoenix. Tempe. etc., Maricopa County. 

 (4) The var. decumbens (S. Wats.) Munz occurs in northern Mohave 

 County, 2,000 feet or lower, March and April, ranging into Utah and 

 Nevada. (5) The var. cineracea (Jepson) Munz is found in Yuma 

 County, below 1.000 feet, March and April, ranging into southeastern 

 California and northwestern Sonora. 



0. deltoides is probably the species that is reported to be used as a 

 potherb by the Papago Indians (pi. 27). 



8. Oenothera neomexicana (Small) Munz, Amer. Jour. Bot. 18: 317. 



1931. 



Anogra neomexicana Small, Torrev Bot. Club Bui. 23: 176. 

 1896. 

 Oak Creek Canyon (Coconino County), 5,100 feet, Greenlee and 

 Graham Comities, 8.000 to 9.500 feet, dry open places, July and 

 August. Xew Mexico and Arizona. 



9. Oenothera pallida LindL, Bot. Reg. 14: pi. 1142. 1828. 



Anogra pallida Britton, Torrev Bot. Club Mem. 5: 234. 1894, 

 in part. 



Apache. Navajo, and Coconino Counties, 3.300 to 7,500 feet, dry 

 open places, June to August. Eastern Washington to Xew Mexico 

 and Arizona. 



In Arizona many plants intergrade with the next species, but to the 

 north it is much more distinct in its more glabrous and less deeply 

 divided leaves. 



10. Oenothera runcinata (Eno-elm.) Munz, Amer. Jour. Bot. IS: 323. 



1931. 

 Oenothera albicaulis var. runcinata Engelm., Amer. Jour. Sei. 



ser. 2, 34: 334. 1862. 

 Anogra runcinata YVoot. and Standi.. Contrib. U. S. Natl. 



Herbarium 16: 151. 1913. 



The typical form, with leaves deeply sinuate-dentate and with much 

 fine, closely appressed pubescence, occurs in Apache, Navajo, (\)co- 



