OREOCARYA AND ITS ALLIES. 67 



10; 4815, Fort Steele, June 18; and 4337, Cooper Creek, June 6, 

 1898,— the latter by Mr. Eiias Nelson. 



Oreocarya flavoculata spatulata. The multicipital cau- 

 dex and deep-seated root covered with loose shreds of the brown 

 bark, much of their tissues dead and easily crushed or torn into 

 strips (in these respects like the species) : branches of the caudex 

 naked except on the 1-few crowns which are swollen with the 

 crowded leaf-bases : pubescence similar but less (dense than in the 

 species : stems spreading or ascending : leaves spatulute, obtuse : 

 beginning to flower when very young, inflorescence at first congested 

 but later, as in the species, leafy bracted : corolla white, slightly 

 yellow in the throat, crests emarginate: essential organs dimorphic; 

 stamens in the throat or I below; style equaling the exserted 

 crests or only about half as long as the tube. 



Two collections of this are at hand, both from gravelly hilltops 

 near Evanston, No. 2977, May 29, 1897 and 4513, June 4, 1898. 

 Possibly a fuller knowledge of it will show it to be distinct. It is 

 at once to be distinguished from the species by its spreading- 

 assurgent habit, its broader, spatulate leaves, shorter stems, thinner 

 pubescence and white flowers. 



Oreocarya affinis perennis. — Perennial, size of the species, 

 stems several, singly from the crowns of the branched ligneous 

 caudex, nearly equal, floriferous ^ their length or more; thyrsus 

 very narrow, more open than in the species (the cluster distinctly 

 axillary) : nutlets nearly smooth, obscurely wing-margined. 



Further material of this with fully mature nutlets may show it 

 to be a distinct species. If the wing-margined nutlets prove con- 

 stant, it will have to be separated from 0. affinis (perfectly charac- 

 terized in Pitt. III., 110) in spite of its great similarity in floral 

 characters, pubescence and habit. Secured at Green River, May 

 31, 1897, No. 3035, and again at the same place in 1898, June 14, 

 No. 4715. 



Oreocarya longiflora. Biennial, or probably a short-lived 

 perennial, 1 or more stems from the mostly simple crowns, 1-2 dm. 

 high : leaves mostly on the crowns, crowded, obtuse, spatulate, on 

 broadish petioles, whole length 3-7 cm., cinereous with a close 

 canescence and an open, strigose pubescence: inflorescence thyrsoid, 

 occupying the whole length of the stems, its numerous racemes in 



