770 FLORA. 



the bud. Stamens included. Ovary 4-divided; style short; stigma capitellate. 

 Nutlets erect, rounded on the back, not keeled, attached laterally to the conic or 

 elongated receptacle, the scar of attachment mostly longer than broad. [Greek, 

 hidden-flowered.] About 50 species, natives of Am., mostly of the western U. S. ' 



Nutlets, at least some of them, with short processes. \. C. crassisepala. 



All four nutlets smooth and shining. 2. C. Fendleri. 



1. Cryptanthe crassisepala (T. & G.) Greene. THICK-SEPALED CRYPT- 

 ANTHE. (I. F. f. 3027.) Densely hispid, 7-15 cm. high. Leaves linear, or 

 linear-spatulate, 1-4 cm. long, sessile, or the lower narrowed into petioles; spikes 

 densely flowered; flowers about 4 mm. broad, sessile, bracteolate; fruiting calvx 

 6 mm. long, closing over the fruit, its segments linear, obtusish, their midribs much 

 thickened; fruit of 3 finely muricate nutlets, and i' larger smooth and shining 

 nutlet about 2 mm. long. In dry soil, N. W. Terr, to Neb., Kans., Tex. and 

 N. Mex. June-Aug. 



2. Cryptanthe Fendleri (A. Gray) Greene. FENDLER'S CRYPTANTHE. 

 (I. F. f. 3028.) Erect, hispid; stem 1.5-4 dm. high. Leaves linear, or the lowest 

 linear-spatulate, 2-6 cm. long; spikes slender, bracteolate only at the base; flowers 

 sessile, 2-4 cm. broad; fruiting calyx nearly closed, its segments linear, leaf-like, 

 herbaceous; nutlets 4, all alike, brown, less than 2 mm. long. In dry soil, N. W. 

 Terr, to Wash., Neb. and Ariz. June-Aug. 



6. OREOCARYA Greene. 



Hispid or strigose-pubescent herbs, mostly with thick woody roots, alternate or 

 basal narrow leaves, and small white racemose-paniculate or densely thyrsoid 

 flowers. Calyx deeply 5 -parted or 5 -divided, the segments lanceolate, more or less 

 spreading or recurved in fruit. Corolla funnelform or salverform, mostly crested 

 in the throat, 5-lobed. Stamens included. Ovary 4-divided; style mostly short. 

 Nutlets 4, laterally attached to the receptacle, not keeled, their margins acute or 

 winged. [Greek, mountain nut] About 9 species, natives of western N. Am. and 

 Mex. 



Inflorescence racemose-paniculate; nutlets smooth. i. O. suffruticosa. 



Inflorescence thyrsoid or thyrsoid-glomerate; nutlets rough. 



Corolla-tube not longer than the calyx, little longer than the lobes. 



Densely rough-hairy, 1.5-4.5 dm. high. 2. O. glomerata. 



Silvery appressed-pubescent, 0.7-1.5 dm. high. 3. O. sericea. 



Corolla-tube longer than the calyx, 2 or 3 times as long as the lobes. 



4. O.fulvocanescens. 



1. Oreocarya suffruticosa (Torr.) Greene. SHRUBBY OREOCARYA. (I. F. 

 f. 3029.) Perennial, rather stout, strigose-pubescent or somewhat hirsute, 1-3 dm. 

 high. Upper leaves linear, 1-2.5 cm. long, the lower oblanceolate, somewhat 

 longer; pedicels about 2 mm. long; calyx canescent and somewhat hispid; bract- 

 lets longer than the fruiting calyx; corolla 3-6 mm. broad; nutlets nearly 2 mm. 

 long, shining, closely fitting together, triangular, acute-margined. In dry soil, 

 western Neb. and \Vyo. to Tex. and Ariz. May-Aug. 



2. Oreocarya glomerata (Pursh) Greene. CLUSTERED OREOCARYA. (I. F. 

 f. 3030.) Perennial or biennial; ftem 1.5-4.5 dm. high- Leaves spatulate or the 

 upper linear, obtuse, 2-6 cm. long, the basal commonly tufted; inflorescence of 

 thyrsoid clusters, the short dense lateral spike-like clusters mostly longer than the 

 subtending bracts; calyx densely bristly; corolla 6-10 mm. broad; fruit pyra- 

 midal, the nutlets triangular-ovate, acute, acutely margined, papillose on the back. 

 In dry soil, Manitoba to the N. W. Terr., Neb., N. Mex. and Utah. May-Sept. 



3. Oreocarya sericea (A. Gray) Greene. Low OREOCARYA. (I. F. f. 

 3031.) Perennial, low, tufted; stems 7-15 cm. high. Leaves linear-spatulate, 

 1-2.5 cm - l n g' imbricated on the short sterile shoots and at the bases of the flower- 

 ing stems; inflorescence usually short; calyx densely hispid; corolla 4-6 mm. 

 broad; style short; nutlets acutely margined, acute, papillose on the back. In dry 

 soil, N. W. Terr, to Neb. and Utah. May-Sept. 



4. Oreocarya fulvocanescens (A. Gray) Greene. TAWNY OREOCARYA. 

 (I. F. f. 3032.) Perennial, similar to the preceding, but densely strigose or hirsute. 



