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-spat ulate, 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 

 J'idrocanescens Gray. Southern Colorado and New Mexico. V 



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 

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

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

 fi nun. long, very bristly, shorter than the tube of the corolla: corolla with 

 broad (irl.irular divisions, the throat-crests prominent: nutlets globose, in- 

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



