Lewisia. l'< )KI ILAC ACK.K. 2(J7 



Bot. Misc. i. .']J'), t. 70, .^- Fl. r...r.-Aiii. i. I'l'.! ; IL.ok. \ Am. Hut. l5.-.-,l,. :;| j. 

 t. HG ; Wats. liot. Kiii<^ Kx|». J I ; IJriw. cS: Wats. Uut. Calif, i. 7«. Tin- {^«iuis 

 is here considerably e.vteiuled to iiieliule tliu tliick-rooted perennial section of 

 Ca/inifln'nia (J? J*<ir/ii/rr/ii:ea, (Iray, I'roe. Am. Acad, xxii, li7<J), ri;,'htlv sepa- 

 rated from Cahnu/niiia by Th. Howell on the very different dehiscence of the 

 cajtsules. Mr. Howell's <;enus Orfobruma ( Krythea, i. 31), however, cannot be 

 distini,'uished from Lewisia by a single constant or satisfa<-tory generic character 

 as well indicated by K. Hrandej^ee, I'roc. Calif. Acad. Sci, ser. 2, iv. Hi). [Kc-- 

 vised and extended by ]>. L. HouixsoN.] 



§ 1. Sepals or sepaloid bracts 4 to 8 (in L. rcdiriru, var. (?) Yusemitttna, 

 reduced to 2). 



♦ Scape jointed above the middle and hcariiig an involucre of 2 or more scarious suhulato 

 bracts : cotyledons accunibcnt. — Lewisia proper. 



L. rediviva, Pursh, l. c. (Hitter-ikmjt, Uacixe i>'A.Mi:KE.) I^eaves in a dense tuft, 

 usually shorter than tlie scapes, incli or two long, subdavate : involucre of 5 to 7 subulate 

 scaiious bracts: sepals 6 to 8, strongly imbricated, broad-oval, somewhat j>etaloid: corolla 

 l)right rose-color varviiig to white, of 12 to 16 oval or at k-n|,rth spatulate (an inch or more 

 long) petals, rotately spreading in sunshine: stamens 40 or more: style-liranchcs alnjut 8. — 

 Hook. f. 15ot. .Mag. t. 539.5.1 L. aiha, Kellogg, I'roc. Calif. Acad. Sci. ii. 115, f. 36. — H»K-ky 

 Mountains from north of Hritish boundary to Wyoming and Utah, west to the Cascade 

 Mountains and Sierra Nevada down to San Uernardino Co., and Arizona, and even on' 

 Monte Diablo of the Contra Costa range, California. 



Var.* (? ) Yosemitana, K. Bkandkuek, 1. c. 89. Closely similar to the tvije iu habit, 

 but very depauperate and with the number of parts in the flowers much reduced : sepids 2, 

 broad, concave, and emarginate : petals 5. — Yosemite \'alley, Calif., Mrs. W. F. LiMtd. 



♦ * Scapes not jointed near the middle but just beneath the caly.x proper, the bracts from 

 the joint 2, decu.ssate with 2 sepals, which they usually closely subtend and much resem- 

 ble : cotvledous incumbent or obliijue. 



L.* Kelloggii, K. Bu.vxdecee. Dwarf: leaves spatulate, obtuse or retuse ; blades 6 lines 

 to an inch in length ; the petiides thick, very broad l»elow ; outer leaves liractlike Iteing broad 

 oblong-lanceolate scarious i)hyllodia: j)edunclcs 4 to 7 lines in length, jointed at the l>ase • 

 involucre none: sepals 4, oMong-lanceolate, acute, finciv glandular-toothed, 3 to 4 lines in 

 length: petals .5, white, .it lea-^t twice as long: .stamens 12 to 15: style-branches 5 ; coty- 

 ledons obliipie (ace. to Mrs. Rrandegee). — I'roc. Calif. Acad. Sci. ser. 2, iv. 88. L. brachy- 

 cali/T, Greene, Fl. Francis. 176, not Engelm. — CJranitic sand on the Sierra Nevada Mts., 

 Central California, at Cisco, Kellixjfj (1870); Sierra Nevada, without e.xact Ux-ality, .Vi//r 

 (1872); and in I'himas Co., ^frs. Austin (1877). Clearly distinguished from the following 

 species by its glandular-denticulate sepals. 



L.* brach^calyx, Kxcei.m. Leaves spreading in an open rosulate cluster, spatulate and 

 oblanccolate, moderately fleshy, 1 to 4 inches long (including tlie margined ju'tiolc). sur- 

 pa.ssing the scapes: .sejials 4, decus.sate, oval to oblong, much shorter than the corolla, outer 

 pair narrower : petals 5 to 9, cnneate-obovate, white, sometimes purjile veiny, half inch to 

 almost inch long: stamens 10 to 15: styU^branches 5 to 7. — F.ngelni. in (iray, I'roc. Am. 

 Acad. vii. 400 ; Wats. 1. c. 45 ; Brew. & Wat.s. Bot. Calif, i. 79. — In wet pn.uml. mountains 

 of Arizona, AVic/xTr//, Palmer ; S. Utah, Parri/, &c. ; San Bernardino Co.. Calif., Punsh. 



§ 2. OREonuoMA, Howell, 1. c, as genus. Calyx of 2 sepals, without closely 

 subtending bracts. 



♦ Root .stout, more or less elong.ated, at lea.-^t oblong-conical, l>earing at its summit one or 

 more short thick erect caudices. 



1 Add Gnrdon. xxxi. 124, t. 582 ; rnilliciix & H.-is, Hull. Soc. Nat. .\ccliniat. xxxvi. 44.3-448 

 (1889), with wood-cut. 



