308 SCROPHULARIACE^. Pediculam. 



broad crenatures minutely crenulate: spike short and dense: calyx cleft in front, 2-3- 

 toothed posteriorly : corolla whitish or purplish, three-fourths of an inch long, like that 

 of P. Canadensis, but the teeth at the apex of galea less conspicuous. — Prodr. 1. c. 668 ; 

 Porter & Coulter, Fl. Colorad. 97. — Meadows and parks, Colorado Rocky Mountains, at 

 7 to 10,000 feet, Fremont, Vasey, &c. 



b. Leaves all pinnately parted and the lower divided, ample : divisions lanceolate or linear-lan- 

 ceolate, acutely laciniate-serrate or the larger pinnatifid : spike naked, many-flowered: bracts 

 unlike the leaves : calyx 5-clef t ; the lobes slender and entire : galea almost straight, cucullate at 

 summit. 



P. bracteosa, Benth. Glabrous, or the dense cylindraceous (1^ to 3 inch) and usually 

 pedunculate spike somewhat pilose : stem 1 to 3 feet high : divisions of the leaves ^ to 2 

 inches long, linear-lanceolate : bracts ovate, acuminate, shorter than the flowers : calyx- 

 lobes slender-subulate, equalling the tube : corolla less than inch long, narrow, pale yellow ; 

 galea much longer and larger than the lip, its cucullate summit slightly produced at the 

 entire edentulate orifice, but not rostrate. — Hook. Fl. & DC. 1. c. P. recutita, Pursh, Fl. 

 ii. 425, probably. P. elata, Pursh'? not Willd. — Mountain and subalpine woods, Saskatch- 

 ewan to British Columbia, and south to Utah and the Colorado Rocky Mountains. 



P. procera, Gray. Puberulent : stem robust, l^,to 4 feet high : leaves pinnately divided 

 into lanceolate (1 to 3 inches long) and irregularly pinnatifid segments, or the uppermost 

 deeply pinnately parted ; lobes mucronately serrate or incised : bracts lanceolate, caudate- 

 acuminate, mostly longer than the flowers, serrate or denticulate, or the upper entire: 

 spike 8 to 15 inches long : calyx-lobes lanceolate or subulate, much shorter than the tube : 

 corolla about an inch and a half long, sordid yellowish and greenish-striate ; galea hardly 

 longer than the ample lip; its broad cucullate summit slightly incurved, hardly at all 

 extended at the orifice, the lower angle with a short triangular tooth on each side : capsule 

 broadly ovate. — Am. Jour. Sci. ser. 2, xxxiv. 251. — Low or wooded grounds of the Rocky 

 Mountains in Colorado and New Mexico, at 8 or 9,000 feet. Leaves more compound, 

 the bracts and calyx-lobes longer, and corolla larger than in the allied Siberian P. striata, 

 Pall. 



=^ = = Rockj'-Mountain-alpine : stem few-leaved, only a span or so high. 



P. SCOpulorum. Glabrous, except the arachnoid-lanate dense oblong spike : calyx-teeth 

 triangular-subulate, entire, membranaceous, very much shorter than the tube : galea of 

 the reddish-purple (three-fourths inch long) corolla with its somewhat produced apex 

 obliquely truncate, edentulate or produced on each side into an obscure triangular tooth : 

 otherwise as the following. — P. Sudetica, var., Gray in Am. Jour. I.e. — Colorado Rocky 

 Mountains, at 12 to 14,000 feet. Parry, Hall & Harbour, &c. 



= = = == Arctic-alpine, in America only in high northern regions. 

 a. Galea falcate-incurved and with somewhat produced bidentulate summit. 



P. Sudetica, Willd. Glabrous, or the spike commonly hjrsute-villous or lanate : stem a 

 span high, few-leaved : leaves simply pinnately-parted ; divisions lanceolate, incisely ser- 

 rate or crenate ; the teeth somewhat cartilaginous : spike dense, mostly short : calyx- 

 teeth lanceolate or linear, little shorter than the tube, serrulate : corolla purple (9 or 10 

 lines long) ; galea longer than the erose-crenulate lobes of the lip; the tooth at the lower 

 side of truncate apex on each side conspicuous and cuspidate, sometimes shorter and 

 triangular-acuminate. — Spec. iii. 209; Stev. Monogr. 44, t. 15; Reichenb. Iconogr. iv. 

 t. 390, & Ic. Germ. t. 1750; Bunge in Ledeb. 1. c — Kotzebue Sound, St. Paul and St. 

 Lawrence Islands, &c. (Adjacent Arctic Asia, N*. Siberia to Lapland, E. Alps.) 

 b. Galea less falcate or straightish, with rounded-obtuse summit not at all produced anteriorly, yet 

 sometimes bidentulate: calyx 5-toothed: capsule acuminate, usually double the length of the 

 calyx: spike dense, its evolution according to Maximowicz centrifugal or nearly coetaneous (but 

 this hardly iipparent), except in true P. Langsdorffii. 



P. Langsd6rflQ,i, Fisch. Stem stout, glabrous below, at base bearing numerous leafless 

 brown scales, 3 to 8 inches high, including the at length elongated leafy-bracteate more or 

 less hirsute or lanate spike : leaves pectinately pinnatifid or the radical parted into small 

 oblong denticulate lobes : bracts mostly like the upper leaves : calyx-teeth or most of 

 them denticulate : corolla rose-color or purple (rarely yellowish, 9 or 10 lines long), with 

 oblong-linear somewhat falcate galea longer than the lip, commonly with a slender tooth on 

 each side below the apex; filaments all or one pair more or, less pilose above: capsule 

 gladiate-lanccolate. — Stev. Monogr. 49, t. 9, fig. 2 ; Hook. Fl. ii. 109 ; Ledeb. Fl. Ross. iii. 



