756 MISC. PUBLICATION 42 3, U. S. DEPT. OF AGRICULTURE 



23. Cryptantha costata T. S. Brandeg., Bot. Gaz. 27: 453. 1899. 



Cryptantha seorsa Macbride, Gray Herbarium Contrib. 48: 46. 

 1915. 



Western base of the Gila Mountains (Yuma County), creosote- 

 bush desert, rare, type from Needles, Calif. (Jones 3841). Extreme 

 western Arizona and southeastern California. 



24. Cryptantha holoptera (A. Gray) Macbride, Gray Herbarium Con- 



trib. 48: 44. 1916. 



Eritrichium holopterum A. Gray, Amer. Acad. Arts and Sci. 

 Proc. 12: 81. 1876. 



Peach Springs (Mohave County) to the Colorado River and 

 southern Yuma County, creosotebush belt, rare, type from Ehren- 

 berg, Yuma County (Palmer). Western Arizona and southeastern 

 California. 



25. Cryptantha pterocarya (Torr.) Greene, Pittonia 1: 120. 1887. 



Eritrichium pterocaryum Torr., U. S. and Mex. Bound. Bot. 

 142. 1859. 



Widely distributed in central, western, and southern Arizona, 

 mostly below 4,000 feet. Western Texas to Washington, northern 

 Sonora, and southeastern California. 



The typical form of the species, with fruit composed of 1 wingless 

 and 3 winged nutlets, has been found in Navajo, Mohave, and north- 

 western Maricopa Counties, ranging northward and northwestward 

 from Arizona. The most common and widely distributed form in 

 Arizona is var. cycloptera (Greene) Macbride, with fruit composed 

 of 4 similar winged nutlets. It ranges in Arizona from Mohave and 

 Yavapai Counties southeast to Graham, Cochise, and Pima Counties 

 and has a more southerly distribution outside the State. The var. 

 stenoloba Johnston, known only from the Virgin River Valley in 

 Arizona and adjacent Nevada, differs from all other forms of the 

 species in its narrowly linear-lanceolate (rather than ovate or broadly 

 lanceolate) calyx lobes, these 5 to 7 mm. long. Its nutlets are hetero- 

 morphous, as in the type of the species. 



26. Cryptantha utahensis (A. Gray) Greene, Pittonia 1: 120. 1887. 



Krynitzkia utahensis A. Gray, Syn. Fl. ed. 2, 2 \: 427. 1886. 



Mohave County, 3,000 feet or lower, gravelly slopes and sandy 

 washes in the creosotebush belt. Southwestern Utah and western 

 Arizona to California. 



27. Cryptantha muricata (Hook, and Arn.) Nels. and Macbr., Bot. 



Gaz. 61: 42. 1916. 



Myosotis muricata Hook, and Arn., Bot. Beechey Voy. 369. 

 1840. 



Known in Arizona from Yucca (Mohave County), Skull Valley 

 (Yavapai County), Oracle (Pinal County), and near Tucson (Pima 

 County), 2,000 to 5,000 feet, usually on gravelly slopes in openings 

 among trees and brush, rare. Southern Utah to southern Arizona 

 and California. 



