BORAGINACEAE (BORAGE FAMILY) 417 



Calyx-lobes equaling or exceeding the corolla-tube. 

 Hirsute, fulvous above. 



, ^ , Nutlets nearly smooth 6. O. caespitoaa. 



" < Nutlets conspicuously roughened . . . ' . 7. O. nana. 



Silvery-canescent; nutlets muricate . . . , 8. O. cana. 

 i, White-sericeous, tawny above; nutlets rugulos»-. 

 ' , . ituberculate. 



" Fteriferous above only 9. O, seKcea. 



Floriferous from the base 10. O. elata. 



Calyx-lobes shorter than the corolla7tube. 

 Inflorescence terminal. 



' Contracted capitate II. O. fulyocanescens. 



' ' Compound spicate 12. O. cristata. 



Floriferous throughout; nutlets rugose . . , . 13, O, Bakeri. 

 Breunials or scarcely more enduring, mostly from a taproot. 

 Corolla-tube not surpassing the calyx-lobes. 



Stem simple, or with smaller branches from the base; lower 



leaves Oblanceolaite . 14. O. affinis. 



Stem simple or several from the base; lower leaves obpvate 15. O. glomerata. 

 Stems iwo or more from the crown, equal. ' ' ' 



Nutlets sharply rugose • . l6. O.' thyrsiflora. 



Nutlets roughly white-papillose . . , . . 17. O. aperta. 



Stem strict, stout; inflorescence spicate, leafy-bracteate , 18. O. virgata. 



Corolla-tube surpassing the elongated calyx-lobes . . ; 19. O. longiflora. 



1. Oreocarya flava A. Nels. Bull. Torr. Bot. Club 25: 202. 1898. Whjte- 

 pubescent below, fulvous or yellow-hirsute upward; stemg numerous, tufted 

 on a branched lignescent caudex, 10-25 cm. high': leaves numerous; basal 

 ones scale-like and white-hairy; stem leaves hnear to oblanceolate, 3-5 cm. 

 long: inflorescence crowded, glomerate-spioate: calyx; yellow-hirsute, lobes 

 linear, half the length of the corolla-tube: corolla a decided yellow, tube about 

 12 mm. long; crests conspicuous, emarginate: stamens and pistils dimor- 

 phic; stamens inserted just below the throat or just below the middle of the 



, tube; style the length of the tube or half the length: nutlets smpoth, ovate, 

 narrowly winged, not all maturing. — Southern desert region of Wyoming. 



2. Oreocarya alata (Jones) A. Nels. Pubescence short, soft and appressed,,, 

 longer but scarcely hispid in the inflorescence; caudex woody, branched; 

 stemg single from the crowns, erect, 2-5 cm. high: basal leaves crowded,, 

 linear-oblanceolate, 3-6 cm. long.; those of the stem oblong-linear: inflores- 

 cence subcapitate, with one or more small clusters in the axils of the upper- 

 most leaves: calyx-lobes linear, shorter than the coroUartube, fulvous-hirsute: 

 corolla yellowish, tube about 10 mm. long, at least twice as long as the lobes: 

 nutlets smooth, obtusely and narrowly wing-margined-.^iCrj/ni^zfcia kti- 

 cophaea alata Jones, Cal. Acad.. Sci. II. 5: 710. 1,895.— Sandstone cliffs and 

 barrens; Utah and probably western Colorado. . , ,. 



3. Oreocarya flavoculata A. Nels. Erythea 7: 66. 1899. . Hispid-ciliate, 

 loosely tufted on a branched caudex the branches of which are clothed with 

 dead leaf-bases, 1-2 dm. high: leaves Unear-spatukte to narrowly obovate, , 

 canescent: inflorescence crowded, becoming a thyrsus of short racemes, 

 fulvous and somewhat strigose: sepals lanceolate, about, 7 pipi. long: corolla 

 white or oohroleucous, the throat and conspicuous oblong qrestSr.bright yel- 

 low ; tube slightly exceeding the calyx and nearly twice the length of the oval 

 lobes: nutlets ovate, roughened-papillate on the back. (0. evlophufi, Rydb. 

 Bull. Torr. Bot. Club 31: 637, 1904.)— iSouthwestern Wyoming ahcf .gt^uth- ; 

 ward. 



4. Oreocarya multicaulis (Torr.) Greene, Pitt. 3: 114. 1896. Perennial, , 

 tufted, densely pubescent and somewhat tomentose; stems numerous, rather , 

 rigid, 3-5 dm. high, moderately leafy, bearing a thjrrsus of numerous elongated 

 spikes at and near the summit: leaves mostly oblanceolate, becoming broadly 

 linear upwa,rd: spikes appearing uniserial and unilateral: nutlets, ovate- 

 trigonous, smooth and /shining. Krynitzkia Jamesii Gray in part. — Southern; 

 Colorado and southward. ! , , 



5. Oreocarya suffruticosa (Torr.) Greene, Pitt. 1: 57. 1887. , Stems 

 tufted, freely branched, canescently pubescent or white-hirsute, 4bout,2 dm. i 

 high, rather rigid and brittle: leaves linear-lanceolate or oblanceolate cinp 



