BORAGINACEAE (BORAGE FAMILY) 419 



papillae intervening; scar broad and open, and forked at base. Type locality, 

 Grand Junction, Colorado. 



13. Oreocarya Bakeri Greene, Pitt. 4: 92. 1899. Densely appressed- 

 pubescent, becoming hispid above; perennial with stout stems, usually de- 

 cumbent at base, more or less branched and floriferous almost throughout: 

 leaves petioled, pblanceolate to elliptic-lanceolate: flowers crowded in the few, 

 solitary, or geminate racemes, bracted: sepals ovate-lanceolate, short, only a 

 little longer than the fruit: nutlets narrowly margined, sinuately and sharply 

 rugose on the back, pitted on the ventral face. Southern Colorado. 



14. Oreocarya affinis Greene, Pitt. 3: 110. 1896. Biennial, 15-25 cm. 

 high, with 1 stoutish, erect, hispid stem and usually 2 or more small, ascending, 

 accessory ones from the base: leaves mostly ob lanceolate, obtuse, canescent 

 with a minute pubescence intermixed with hispid hairs from a canescent base : 

 flowers in short axillary racemes, forming a long narrow thyrsus: corolla 

 6-8 mm. across, the tube equaling the calyx: nutlets narrowly ovate, sub- 

 acuminate, tuberculate-rugose on the back. Krynitzkia glomerata Gray, in 

 part. Southern Wyoming, westward and southward. 



14a. Oreocarya affinis perennis A. Nels. Erythea 7: 67. 1899. Very 

 similar but the root becoming indurated and perennial: nutlets nearly smooth, 

 obscurely wing-margined. Desert areas; Wyoming, and Colorado to Nevada. 



15. Oreocarya glomerata (Nutt.) Greene, Pitt. 1: 58. 1887. Pubescence 

 subtomentose, strigose hairs with pustulate bases intermingled, upwardly 

 becoming densely hispid; stems simple, one or sometimes more: basal leaves 

 crowded, short, obovate-spatulate, very obtuse or sometimes retuse; stem 

 leaves spatulate, becoming acute upward: inflorescence and flowers as in the 

 preceding: nutlets narrowly ovate, with dorsal ridge, transverse bars, and 

 numerous tubercles. Krynitzkia glomerata Gray in part. Coming into the 

 northeastern part of our range. 



16. Oreocarya thyrsiflora Greene, Pitt. 3: 111. 1896. Strigose-hispid 

 throughout, usually with 3 or more equal stoutish stems from the crown, 

 2-4 dm. high: leaves oblanceolate: thyrsus large, its forked branches panicled: 

 corolla-tube short, scarcely equaling the short sepals: nutlets about 3 mm. 

 long, ovate, obtuse, sharply but interruptedly rugose. Frequent on dry 

 hills; eastern Rocky Mountains. 



17. Oreocarya aperta Eustw. Bull. Torr. Bot. Club 30: 241. 1903. Probably 

 perennial, the caudex branched; stems several, 1-2 dm. high, branched from 

 the base but the whole forming a close thyrsus of 2-forked spikes; pubescence 

 gray, setose-hispid, and a finer indument of appressed hairs: calyx-lobes 

 subulate-acuminate, elongating and spreading in fruit: corolla white, tube 

 and limb subequal; crests conspicuous: nutlets ovate, obtuse, with prominent 

 dorsal ridge and acutely margined all around, rough with glossy-white papillae, 

 the larger merging into small papillae and forming somewhat star-shaped 

 figures. Type locality, Grand Junction, Colorado. 



18. Oreocarya virgata (Porter) Greene, Pitt. 1: 58. 1887. Very hispid, 

 not at all canescent; stem strict, 3-6 dm. high, flowering for most of its length 

 in short and dense, nearly sessile clusters, which are generally much shorter 

 than the linear, subtending leaves, and forming a long, virgate, leafy spike: 

 corolla-tube short, equaled by the lobes and by the sepals: fruit pyramidal; 

 nutlets broadly ovate, sparingly papillose. Krynitzkia virgata Gray. Eastern 

 slopes of the Rocky Mountains in Colorado and Wyoming. 



19. Oreocarya longiflora A. Nels. Erythea 7: 67. 1899. Canescently his- 

 pid, with a denser underlying fine puberulence, setose-hispid in the thyrsus; 

 stems 1 or more from the crown of the biennial (possibly more enduring) 

 root, 1-2 dm. high (including the thyrsus): leaves mostly basal, spatulate, 

 3-7 cm. long: inflorescence occupying nearly the whole length of the stem, the 

 numerous racemes in the axils of the leaf-like bracts (reduced above) : sepals 

 linear, 8-10 mm. long, longer in fruit: corolla-tube much exceeding the sepals: 

 stamens dimorphic: nutlets ovate, obtuse, 3-4 mm. long, acute-angled, slightly 

 keeled on back, obscurely rugose and low-papillate towards the margin. 

 Southwestern Colorado. 



