j 70 Charles V. Piper. 



rosis, limbo reniformi vel .siihoiri»*o«iaTi conspicue cordato tripartite 

 2— -2£ -«m torio -otrinque glabro, segmentis 3— 5-lobatis vel profunde cre- 

 natis, lobis oblongis obtusis vel rotundatis, petiolo 2—4 cm longo glabro 

 vel sparse villosulo basi membranaceo-expanso ; foliis caulinis 1—3 distanti- 

 bus breviter petiolatis fere ad basin 3- -5 - partitis, segmentis lineari- 

 oblongis vel angustissime ellipticis; peduneulis teretibus gla'bris 3 — 7 cm 

 longis; sepalis 5 concavis suborbicularibus purpurascentibus dorso pubes- 

 centibus apice rotundatis margine pallescentibus 2—4 mm longis; petalis 

 obovatis sepala aequantibus vel vix superantibus flavis sed in specimine 

 exsiccato albescentibus venosis persistentibus; staminibus numerosis, an- 

 theris flavibus quam filamenta filiformia brevioribus; achaeniis numerosis 

 in capitulo ovoideo vel breviter cylindrico congestis glabris a latere com- 

 pressis 1,8 mm longis obovoideis apice stylo brevi recurvato coronatis; 

 receptaculo ellipsoideo vel subcylindrico foveolato albescenti praeter apicem 

 villosulum glaberrimo. 



Washington: Wet gravelly places, Mount Paddo (Adams), altitude 

 1,850—2,150 meters, July 31, 1883, W. N. Suksdorf 93 (type, in Hb. 

 Gray); same locality and collector, August 30, 1904; rocky ridges and 

 ledges, Mount Rainier, altitude 2,300 meters, J. B. Flett 2177. Mon- 

 tana: Little Belt Mountains, altitude 2,600 meters, P. L. Scribner, 

 August 12, 1883, 4 (Hb. Gray). 



Prom its nearest allies, this species may be distinguished as follows: 

 Prom R. escholtzii Schlecht. it differs in its decidedly cordate scarcely or 

 not at all ciliate leaves, and larger achenes with relatively shorter 

 strongly recurved style. Prom R. pedatifidus J. E. Sm. (R. affinis R. Br.) 

 it differs in its glabrous achenes and less deeply and narrowly cleft 

 foliage. From R. alpeophilus A. Nelson it may be distinguished by its 

 cordate leaves and by the fact that the receptacle is villous only at the 

 tip. Finally from R. cUlenii Robinson, a plant of Labrador which in many 

 ways it rather closely simulates, it differs in its cordate leaves and some- 

 what larger achenes. 



t'6. Ranunculus bongardi greenei (Howell) Piper, 1. c, p. 275. 



Ranunculus greenei Howell, FJ. N. W. Am., I, 18; 1897. — Ranunculus 

 occidentalis lyalli A. Gray, Proc. Am. Acad., XXI. 373; 1886; not R. lyaUi 

 Hook. f. 1864. — Ranunculus teneUus lyalli Robinson in Gray, Syn. Fl., I 1 , 

 33; 1895. — ? Ranunculus occidentis parviflorus Torr. Bot. Wilkes Exped.. 

 214: 1874. — Alaska to California and Idaho. 



67. Ranunculus oreganus macounii (Britton) Piper, i, c, p. 276. 

 Ranunculus macounii Britton, Trans. N. Y. Acad. Sci., XII, 3: 1892. — 



Ranunculus hispidus Michx. err. det. Hook.. Fl. Bor. Am., I, 19; 1830. — 

 British Columbia to Canada, southward in the mountains to New Mexico. 



68. Ranunculus platyphyllus (A. Gray) Piper, 1. c, p. 276. 

 Ranunculus orthorhynchus platyphyllus A. Gray, Proc. Am. Acad., XXI, 



377; 1886. — Ranunculus maximus Greene, Bull. Torr. Club, XIV, 118; 

 1887. — British Columbia to California and Nevada. 



69. Delphinium xantholeucum Piper, 1. c, p. 280. 



Perennial from thick elongate black roots 5 to 10 cm long; stems 



