632 Obdbe 86.— SCROPHULAHIACE^. 



2 C sessilxfldra PK. Pilose-pubescent; Ivs. sessile, clasping, oblong-linear, 

 mostly irifid with the lobes divaricate; cal. sessile, elongated; spikes dense; cor. 

 long, exserted, arched, segments of the lower lip acuminate. — 1i Prairies, 'Wis. 

 (Lapliam) and westward. Stem 8 — 14' high, several from the same root, simple, 

 leafy. Leaves grayish, 2 — 2 J' long. Flowers crowded. Corolla tube slender, 

 2 — 3' in length, greenish- white, with a slight tinge of purple. Style and stamens 

 enfolded by the upper lip, and a jittlo exserted. May. (B. grandiflora Nutt.) 



3 C. septentrionilis Lindl. Lms. linear, undivided, the upper lanceolate, the 

 floral subovate, subdentato at the end, all 3-veined; cal. with acute teeth, shorter 

 than the corolla. — y A hardy inhabitant of Alpine and high northern regions. 

 White Mts., N. H. to Hudson's Bay. St. a foot high, simple. Lvs. sessile, 

 smootliisli, becoming lanceolate towards the upper part of tlia stem, and near 2' 

 long. Tuft of fls. at top of the stem. Bracts broader and shorter than the leaves, 

 5 to 7-veined, of a pale straw color tipped with purple. Fls. straw-colored, nearly 

 concealed by the bracts. Aug. (Bartsia pallida Ph.) 



31. SCHWAL'BEA, L. Chaff-seed. (Inhonorof iScAwaZfie, aOerman 



botanist.) Calyx tubs 10-ribbed, inflated, obliquely 4-cleft, upper divi- 

 sion small, lower largo, omarginate or 2-toothed ; corolla ringent, upper 

 lip entire, arched, lower 3-lobed ; capsule oblong ; seeds many, cbaff'y. — 

 21 With alternate leaves and flowers in a terminal spike. 



S. Americana L. In sandy barrens and marshes, N. T. to Pla. and La. Stem 1 — 

 2f liigli, pubescent, ttout, simple. Leaves sessile, ovate-lanceolate or oblong, 

 3-veined, 1' to 20" long, with a cihate margin. Bracts ovate, acuminate, dimin- 

 ishing upwards. Flowers on simple, alternate, very short pedicels, in a long 

 spilie. Corolla dull purple or brownish-yellow, twico as long (1 — 1 J') as the per- 

 manent, strongly-ribbed calyx. Jn. 



32. PEDICULA^RIS, L. Lousewort. (Lat. pediculus, a louse ; prob- 

 ably from its efficacy in destroying that insect.) Calyx ventricous, 2 to 



'5-cleft, the segments leafy, or sometimes obliquely truncate ; corolla 

 vaulted, upper lip compressed, emarginate ; lower lip spreading, 3-lobed ; 

 capsule 2-oelled, oblique, mucronate ; seeds angular. — Herbs. Lvs. 

 alternate, rarely suboppositc, often pinnatifid. Fls. spicatc. 



1 P. Canadensis L. Hirsute; st, simple; lvs. alternate, petiolate, lance-oblong, 

 pinnatilid, lobes oblong-ovate, crenate-dentate ; spiite short, dense, leafy; cat 

 truncate downwards; cor. galea abruptly incurved, loii/i 2 setaceozjs teeth; caps, 

 ending m a prolonged ensiform leak. — If Pastures and low grounds, U. S. and 

 Can. St. erect. If high. Lvs. 3 to 6' by 1 to 2', chiefly radical. Spike short, 

 hairy, with a few small leaves at the base. Cor. yellowish and purple, the upper 

 lip long, erect, forming a galea or helmet, cut square off at the end, with a bristle- 

 like tooth at each corner. Beak of the capsule often near 1' in length. May — 

 JL (P. gladiata Mx.) 



2 P. lanoeolata Mx. Nearly glabrous; st. branched; lvs. subopposiie, briefly 

 petiolate or sessile, oblong-lanceolate, doubly incised crenatc; spike rather dense ; • 

 cal. 2-lobed; cor. galea as long as the lip, incurved over it and closing the throat; 

 caps, short, ovoid. — y In alluvial woods, N. Y. to Wis. (Lapham), S. to Ta. St. 

 1 to 2f high, smooth, with pubescent lines, nearly opposite lvs., and e. few axiUary 

 branches. Lvs. 3 to 5' by 1 to IJ'. Spike 1 to 3' in length, with ovate-lanceolate 

 bracts. CaL and cor. smooth, the latter greenish yeUow, 1' long. Style a little 

 exserted. Sept. (P. pallida Ph.) 



33. RHINANTHUS, L. Yellow Rattle. (Gr. pLV, nose, avOoq ; 

 alluding to tho singular appearance of the compressed galea.) Calyx 

 4-toothed, ventricous; corolla tube cylindrical, as long as the calyx, 

 limb ringent, galea appendaged, compressed, lip broader, deeply divided 

 into 3 obtuse segments ; capsitle 2-valved, compressed, obtuse. — 3D Erect, 

 with opposite lvs. 



