CHELONE. 



SCROPHULARINAE. '241 



peduDCulis nudis trifloris pubesccnlib. ; bracleis segmenlisq. calycinis subulalis; 

 corollis ventricosis roseo-purpurascenlib. puberulis. 2|, — Anlherae lanalae. — 

 Crescit in America boreali occidenlali. 



t Sjyecies e genere expellendae. 



CH. ALBIDA Spr. = PENTSTEMON ALBIDUM. 



CH. ALPINA sir. = EPNTSTEMON ALPINUM Torr. 



CH. ANGUSTIFOLIA H. B. Kth. = PE:5TSTEM0N KUNTHII. 



CH. ANGUSTIFOLIA Lindl. = PENTSTEMON ROSEUM. 



CH. ATROPURPUREA Sweet. = PENTSTEMON ATROPURPUREUM. 



CH. BARBATA Cav. = PENTSTEMON BARBATU3L 



CH. BRADBURH Spr. = PENTSTE.MON GiUNDIFLORUM. 



CH. CAMPANULATA Cavan. = PENTSTEMON CAMPANULATUM. 



CH. CAMPANULOIDES Andrws. = PENTSTEMON CAMPANULATUM. 



CH. CENTRANTHIFOLIA Bth. = PENTSTEMON CENTRANTHIFOLIUM. 



CH. COERULEA Spr. = PENTSTEMON COERULEUM. 



CH. CRISTATA Spr. = PENTSTEMON CRISTATUM. 



CH. DIGITALIS Spr. = PENTSTEMON DIGITALIS. 



CH. ELEGANS H. B. Kth. = PENTSTEMON PULCHELLUM. 



CH. ERIANTHERA Prsh. == PENTSTEMON CRISTATUM. 



CH. GENTIANOIDES H. B. Kth. = PENTSTEMON GENTIANOIDES. 



CH. GRACILIS Nutt. = PENTSTEMON GRACILE. 



CH. GRANDIFLORA Spr. = PENTSTEMON GRANDIFLORUM. 



CH. HIRSUTA Linn. = PENTSTEMON HIRSUTUM. 



CH. IMBERBIS H. B. Kth. = PENTSTEMON HUMBOLDTII. 



CH. PENTSTEMUM Linn. = PENTSTEMON PUBESCENS. 



CH. PENTSTEMUM Mill. = PENTSTEMON LAEVIGATUM. 



CH. RUELLIOIDES Andrws. = PENTSTEMON BARBATUM. 



CH. ROSEA Cervant. = PENTSTEMON ROSErUM. 



CH. TERETIFLORA Fraser =- PENTSTEMON ALBIDUM. 



3909. PE\TSTEMOX Herit. 



(Herit. mss. ex Lambert, Transact. of the Linn. soc. X. t. 0. — Meisn. Gener. plant. 



vascular. I. 308. II. 219. — G. Don, General syst. of gard. and bot. IV. 636.) 



Sectio I. VERAE G. Don 1. c. — Antherae glabrac. 



1. P. CRISTATUM Fraser, CalaL 1813. ex Nutt. Gener. Americ. 11. 52. — G. Don \. 

 c. no. 1. — Pubescens: foll. radicalib. lanceolatis denticulatis , caulinis sessilib. 

 lineari-oblongis sublanceolatis; pedunculis axillarib. terminalibq. 1-3-floris bre— 

 vissimis; calycis pilosiusculi segmentis lineari-Ianceolatis acuminatis; filamento 

 quinto sterili subexserto, cum fauce corollae eximie cristato-barbato. ^ — Co- 

 rolla magna violacea venlricosa, limbo palenle quinquelobo. — Chelone erian- 

 thera Prsh. FI. Am. sept. II. 737. — Chelone crislata Spr. Syst. veget. II. 81-3. — 

 Crescit in America boreali. 



2. P. COERULEUM Nutt. 1. c. - G. Don I. c. no. 2. - Giabrura glaucum: foll. ra- 

 dicalib. sublinearib., caulinis sublanceolato -linearib., omnib. sessilib. integris, 

 ad marginem subpuberulis; pedunculis multifloris; calycis segraentis lanceolatis 

 aculis; filaraento slerili brevi, sursum barbato. 2f — CoroIIa subcampanulata azu- 

 rea. — Chelone angustifolia Fraser, Catal. 1813. ex Prsh. Fl. Americ. sept. IL 738. 

 — Chelone coerulea Spr. Syst. veget. II. 813. — Crescit in planitiebus Missourien- 

 sibus prope Fort Mandan. 



3. P. ALBIDUiM Nult. 1. c. 53. — G. Don 1. c. no. 3, — Humile: foll. ovato-Ianceo- 

 latis subserrulatis glabris sessilib.; florib. fasciculatis axillarib. terminalibq.; fila- 

 mento sterili gracili inlerrupte barbato ; corolla intus glabra subcampanulato- 

 tubulosa, limbo subaequaliter quinquefido patente; calycis pubescentis segmentis 

 lineari-lanceolatis. '^ — Caulis subangulatus. Folia approximala. Corolla ple- 



III. 31 



