1902] ROCKY MOUNTAIN PLANTS 27 



obtuse at both ends, deeply excavated on the ventral side, the 

 inner side of the lateral angles and one side of the salient central 

 ridge strikingly corrugated by rounded, pitted papillae, minutely 

 ridged-papillate on the base. 



This has passed for a form of P. crejiulata Torn, a plant which I think is 

 found only much farther west. That differs from the plant here described in 

 the smaller size, m.ore deeply lobed leaves, more open spikes, rotate-campan- 

 ulate, violet corolla, with broad internal folds ; the short, linear calyx-lobes ; 

 the globular capsule and reticulated, much smaller seeds. 



I base the species on specimens from Colorado as follows: no. 2129 



OyP^)» G. E. Osterhout, Rifle, Garfield co., June 23, 1900, in mature fruit; 



(co-type) C. S. Crandall, Palisades, Mesa co., iMay 14, 1898, in full 

 bloom. 



Gilia Merrillii, n. sp. — Perennial^ from a short woody 

 caudex and tap root; stems few to many from the crown, erect 

 or spreading, sparsely woolly-pubescent, 10-15''"^ long, very 

 leafy towards the base: leaves all simple, crowded, glabrous or 

 nearly so, linear-subulate, cuspidate, either appressed or spread- 

 ing: flowers white, closely capitate, the heads large (10-20 

 in diameter): calyx lobes subulate, with a green midrib, a little 

 shorter than the scarious tube: corolla tube 4-6™°^ long, exceed- 

 ing the calyx lobes, its oval lobes noticeably shorter than the 

 tube : stamens exserted, the filaments a little shorter than the 

 corolla lobes: capsule broadly oval, longer than the calyx tube, 

 its cells I -seeded. 



In habit this species suggests G, congesta or G, iberidifolia, but the 

 numerous short, simple leaves are wholly distinguishing even without the 

 other characters. I name it for Mr, Elmer D. Merrill, who, in company with 

 Mr. E. N. Wilcox, made an extensive and valuable collection in western 



It was secured on dry 



mm 



Wyoming and eastern Idaho, in the summer of 1901. 



soil, fifteen miles south of Leckie, Wyoming, June 15 ; no. 746. 



Gilia Wilcoxii, n. sp. — Annual, 1-3 ^"^ high, generally 

 branched from the base ; the branches In turn sparsely branched, 

 erect or (if several) decumbent at base, somewhat floccose 

 woolly, tardily glabrate : leaves less woolly than the stems, 

 alternate, 2-5 *=^ long, pinnate ; the segments narrowly linear, 

 mucronate, the lateral ones widely divaricate, short (mostly less 

 than I ^'^), usually two pairs: flowers in small bracteate clusters 



