

FLOWERING PLANTS AND FERNS OF ARIZONA 751 



28. Mature calyx 2.5 to 3 mm. long, 1.5 to 2 mm. wide, 

 the lobes linear-lanceolate, the margins lacking 

 fulvous hairs; nutlets with an entire margin; 

 style much surpassing the nutlets; leaves acute, 

 very roughly hairy; plant with a distinct erect 

 central axis, usually 30 to 60 cm. high. 



24. C. HOLOPTERA. 



28. Mature calyx 3 to 5 mm. long, 2.5 to 3.5 mm. wide, 

 the lobes linear-lanceolate to ovate-oblong, the 

 margin usually with short fulvous hairs; nutlets 

 usually with sinuate to lobulate winged margins; 

 style shortly surpassing the nutlets; leaves usually 

 rounded or obtuse at apex, less rough; plant 

 mostly lacking a definite central axis, usually 10 



to 30 cm. high 25. C. pterocarya. 



23. Style surpassed by the nutlets or at most barely surpassing 

 them (29). 

 29. Margin of the nutlets sharp, knifelike or winged (30) . 

 30. Nutlets 4, wing-margined; calyx broad and symmetric. 



25. C. PTEROCARYA. 



30. Nutlets 1 or rarely 2, usually with a knifelike margin; 



calyx obliquely conic at base 26. C. utahexsis. 



29. Margin of the nutlets angled or rounded, not sharp (31). 



31. Nutlets ovate or triangular-ovate, with an acute usually 



somewhat thickened margin, the back usually obtusely 



angled, frequently glossy '27. C. mttricata. 



31. Nutlets lanceolate, with rounded or obtuse unthickened 

 margins, the back not angulate, dull (32) . 

 32. Nutlets 1 or rarely 2; style reaching two-thirds or less 



the height of the nutlets 28. C. decipiens. 



32. Nutlets 4; stvle reaching beyond two-thirds the height 

 of the nutlets (33). 

 33. Plant bristly with mostly spreading hairs. 



29. C. BARBIGERA. 



33. Plant distinctly strigose, but usually with some 

 interspersed spreading hairs __ 30. C. nevadensis. 



1. Cryptantha fulvocanescens (A. Gray) Pavson, Mo. Bot. Gard. 



Ann. 14: 319. 1927. 



Eritrichium fulvocanescens A. Gray, Amer. Acad. Arts and 



Sci. Proc. 10: 61. 1875. 

 Oreocarya fulvocanescens Greene, Pittonia 1: 58. 1887. 



Apache County to northern Mohave County, 4,500 to 6,000 feet, 

 slopes and mesas. Colorado, Utah, New Mexico, and northeastern 

 Arizona. 



The nutlets may be tuberculate with the warts rounded or, as is 

 most common in Arizona, they may be muricate with the roughenings 

 more or less broadly conic and terminated usually by a single short 

 stout bristle-tip. 



2. Cryptantha capitata (Eastw.) Johnston, Arnold Arboretum Jour. 



21: 66. 1940. 



Oreocarya capitata Eastw., Leaflets West. Bot. 2: 9. 1937. 



Known only from the Grand Canyon, type from Hermit Trail (East- 

 wood 5969), also Kaibab Trail to Roaring Springs (Eastwood and 

 Howell 1005). < 



The species is evidently related to C. confertiflora, but the plant is 

 smaller, 10 to 30 cm. nigh, more sparsely strigose and hence greener. 

 It has the large calyx of its relative but somewhat broader more herba- 



1>SC,744°— 42 48 



