SYNOPSIS OF THE FLORA OF COLORADO. 35 



GEUM MACROPHYLLUIM, "Wilkl. Gray's Manual, p. 152. Western's 

 Pass, Coulter. Twin Lakes, Porter. 



GEU3I STRICTUM, Ait. Colorado Springs, Red field. 



GEUM RIVALE, L. Hall <k Harbour ; Parry. Mountains west of 

 Denver, Greene. 



GEUM TRIFLORUM, Pursh. Hall & Harbour, 152 ; B. H. Smith. Twin 

 Lakes and South Park, Porter. Near Long's Peak, Coulter. 



GEUM liossii, Serin ge. Scape 1-flowered, 3'-S' high, slightly pu- 

 bescent above, somewhat 2-3-leaved ; radical leaves iuterraptedly-pin- 

 nate, rather glabrous, minutely ciliate ; leaflets ovate or cuneiform, 2-3- 

 lobed, incised or entire; flowers erect; calyx-lobes ovate, spreading, 

 shorter than the roundish, yellow petals ; carpels in a sessile head, mi- 

 nutely hirsute ; styles persistent, glabrous, not exserted in fruit. Alpine. 

 Hall d: Harbour, 156. Gray's Peak, Dr. 8m ith ; Canby. James's Peak 

 and the Sierra Madre Range, Coulter; Redfield. 



CHAM.ERHODOS ] ERECTA, Buuge. Pilose-pubescent, glandular ; stem 

 slender, ii'-l high, paniculately branched above ; radical leaves rosu- 

 late, ternately or biternately many-cleft, segments very narrow, obtuse, 

 the upper cauline ones 3-5 cleft; petals white, longer than the calyx ; 

 ovaries 5-20. Hall & Harbour , 402; Canby; Porter. South Park, 

 Coulter. 



FRAGARIA VESCA, L. Coulter. Canon City, Brandegee. 



FRAGARIA VIRGIXIAXA, Ehrh., var. ILLINOIE:XSIS, Gr. Denver, Coul- 

 ter ; Dr. Smith. 



FALLUGIA 2 PARADOXA, Torr. Emory Rep., t. 2. (Sierersia paradoxa, 

 Don.) Shrub l-2 high, very much branched, with a white and shining 

 bark : branchlets minutely pilose ; leaves alternate, cuueate or obovate 

 in outline, hirsute, 3-5 parted at the summit, 6" long, divisions linear, 

 obtuse; flowers terminal on the more or less elongated branchlets, sub- 

 corymbose; corolla about 9 // -12 // in diameter, white; achenia numer- 

 ous, hairy, with long, finely plumose tails -3' long. Canon City, Bran- 

 degee. Webster Canon, Redfield. Pueblo County, Greene. 



SIBBALDIA PROOU3IBENS, L. (Potent ilia procumbens, Clairv.) Gratfs 

 Manual, p. 153. Hall & Harbour, 151. Saugre de Cristo Pass, Brandegte. 

 Sierra Madre Range at 11,000 feet altitude, Coulter. 



POTENTILLA ARGUTA, Pursh. Watson's Revision, Proc. Am. Acad. 

 t\8, p. 551. Gray^s Manual, p. 154. Porter; Brandcyee. Plains of the 

 Platte, Coulter. A lower and more slender form, G / -12 / high, smaller in 



1 CHAM.ERHODOS, Bunge. Calyx campanulate, deeply 5-cleft, ebracteolate ; the base 

 lined with a membranous disk, which i.s very densely bearded at the margin. Petals 

 5, obovate. Stamens 5, opposite the petals : and inserted with them into the sinuses 

 of the calyx above the disk ; filaments subulate, short, persistent. Acheuia 5-1U or 

 more ; styles arising near the base of the ovaries, subulate. Receptacle conical, villous. 

 St-cd ascending, nearly orthotropous. Eadicle superior. Small, erect and branching 

 glandular-pubescent herbs ; perennial or biennial. Leaves many-cleft ; the segments 

 linear. Inrioreseiice dichotoniously cymose. Petals white or purplish. T. $- G. FL 

 JV. Am. 



- FALLUGIA, Endl., Gen. PL Calyx with a very short-turbinate tube and spreading 

 limb, 5-cleft, very minutely 5-bracteolate, valvate in aestivation, persistent. Petals 5, 

 inserted on the calyx, alternate with its lobes and nearly as long, obovate. Stamens 

 very many, inserted with the petals ; filaments free ; anthers 2-celled, longitudinally 

 dehiscent. Ovaries very many, sessile in the bottom of the calyx, free, 1-celled. with 

 a single ovule ascending. Styles terminal, continuous, filiform ; stigmas papillose. 

 Achenia numerous, included in the tube of the calyx, aristate with the very long ex- 

 serted, bearded, plumose styles. Seed ascending : radicle inferior. 



