418 BORAGINACEAE (BORAGE FAMILY) 



ereous with appressed pubescence: fruiting spikes geminate and biserial: 

 sepals ovate-lanceolate: nutlets ovate-trigonous (a quarter of a sphere), 

 polished, red-brown, dotted with white. Krynitzkia Jamesii Gray in part. 

 Southeastern Wyoming and southward in Colorado. 



6. Oreocarya caespitosa A. Nels. Erythea 7: 65. 1899. The multicipital 

 caudex densely tufted, often forming broad mats, the branches clothed with 

 dead leaves; stems 5-10 cm. high, single from the crowns, simple: leaves 

 numerous, linear to spatulate, 5-30 mm. long, silky-canescent : inflorescence 

 at first capitate, in fruit thyrsoid-spicate, fulvous-pubescent: corolla white, 

 tube scarcely equaling the sepals, crests conspicuous: nutlets narrowly ovate, 

 scarcely roughened on the back, attached by nearly the whole inner margin. 

 Wyoming and southward. 



7. Oreocarya nana Eastw. Bull. Torr. Bot. Club 30: 243. 1903. Caespi- 

 tose, 5-20 cm. high, hispid throughout, floriferous nearly from the base: 

 radical leaves crowded, oblanceolate, petiolate, 1-2 cm. long; cauline leaves 

 few, similar but shorter than the radical: inflorescence spicate-glomerate : 

 calyx-lobes linear-subulate, longer than the corolla-tube, enlarging in fruit 

 and conniving over the nutlets: corolla white, with prominent crests: nutlets 

 ovate, keeled on the dorsal side and rough with sharp, transverse, interrupted 

 muriculations, with fine papillae intervening. Mesa lands; Grand Junction, 

 Colorado. 



8. Oreocarya cana A. Nels. Bot. Gaz. 34: 30. 1902. Caudex multicipital, 

 clothed with densely pubescent leaf-bases; stems 1-2 dm. high, simple, softly 

 pubescent: leaves silvery- white with a short, . close, soft pubescence, linear- 

 oblanceolate, 3-7 cm. long: the short, dense, thyrsoid spike closely fulvous- 

 hairy (scarcely hispid): sepals linear, 5-7 mm. long: tube of the white corolla 

 equaling the calyx: nutlets narrowly ovate, sharply angled, closely muricu- 

 late on back and sides, ridged on the back by a double row of minute tubercles, 

 scar open, lanceolate, seldom all maturing. Barren hills on the North Platte. 



9. Oreocarya sericea (Gray) Greene, Pitt. 1: 58. 1887. Canescent below, 

 more hirsute upward and becoming a tawny yellow; stems tufted on a branched 

 caudex, 1-2 dm. high: leaves spatulate, 2-4 cm. long: inflorescence short, at 

 first capitate, at length open thyrsoid: corolla white, the short tube equaled 

 by the oval lobes and much surpassed by the hispid linear fruiting sepals: 

 nutlets ovate, subacute, closely muricate-tuberculate on the back, the ven- 

 tral groove terminating in a broader basal scar. Krynitzkia sericea Gray. 

 Western part of our range (probably) and westward to the Sierra Nevada. 



10. Oreocarya elata Eastw. Bull. Torr. Bot. Club 30: 241. 1903. Stems 

 1-several from a woody taproot, 2-4 dm. high, floriferous from the base, the 

 axillary clusters becoming spicate and the summit of the stem branching into 

 a panicle of bracteate spikes: basal leaves spatulate, white with a fine, dense, 

 interlaced pubescence; cauline distant, similar but sessile or clasping: calyx- 

 lobes ovate, with strong midvein, densely hispid, surpassing the corolla-tube: 

 corolla white, the tube longer than the lobes: nutlets ovate, acute but not 

 winged on the margin, tuberculate with glossy-white tubercles which are 

 separate or confluent in irregularly transverse ridges. Type locality, clay 

 hills, near Grand Junction, Colorado. 



11. Oreocarya fulvocanescens (Gray) Greene, Pitt. 1: 58. 1887. Silky- 

 tomentose and the inflorescence yellow hispid-hirsute; caudex caespitose; 

 stems 1 dm. or more high: leaves linear-spatulate, acute: inflorescence con- 

 tracted and subcapitate : tube of the white corolla much longer than the lobes 

 and surpassing the calyx, the crests elongated and exserted. Krynitzkia 

 fulvocanescens Gray. Southern Colorado and New Mexico. 



12. Oreocarya cristata Eastw. Bull. Torr. Bot. Club 30: 244. 1903. Cau- 

 dex branched from a slender woody taproot; stems slender, 2 dm. high: leaves 

 oblanceolate-spatulate, on broad petioles; pubescence from cinereous to 

 tawny (above): inflorescence short, glomerate-spicate : calyx-segments about 

 6 mm. long, very bristly, shorter than the tube of the corolla: corolla with 

 broad orbicular divisions, the throat-crests prominent: nutlets globose, in- 

 curved, acutely margined to the scar, rough with transverse ridges and minute 



