FIGWORT FAMILY. 881 



*- *- Leaves entire or very nearly so. 

 ** Corolla strongly bilabiate. 



P. barbatus, Nutt. Mexico (wild N. to Col.), long cult in the gar- 

 dens ; slender, wand-like stems, 3-4 high, lanceolate and entire, pale 

 leaves, long and loose raceme or panicle of drooping flowers, narrow 

 tubular scarlet corolla over 1' long, with erect upper lip concave and 

 slightly 2-lobed, the lower parted into 3 reflexed or spreading oblong 

 lobes, some beard in the throat, and sterile filament naked. 



++ ++ Corolla obscurely 2-lipped. 



P. grandifl6niB, Nutt. Pale and glaucous, l-3 high, with thick 

 ovate leaves (l'-2' long), closely sessile and entire, the upper ones 

 rounded, short-pediceled flowers racemed, lilac-purple, oblong-bell- 

 shaped corolla l'-2' long, and almost equally 5-lobed, the sterile fila- 

 ment nearly smooth. Wis., W. and S. (Lessons, Fig. 264.) 



P. glaber, Pursh. Plains from Dak., S. and W.; commonly pale or 

 glaucous, with ascending stems l-2 long; lanceolate or lance-ovate, 

 entire leaves, and a narrow panicle of very handsome flowers ; the tubular- 

 inflated corolla about 1J' long, bright purple-blue, with the spreading 

 lobes of the 2 short lips similar ; sterile filaments and also the anthers 

 slightly hairy or else naked. 



P. Hartwegi, Benth. (P. GENTIANOIDES). Leaves lanceolate, entire, the 

 upper broader at the base and clasping ; peduncles elongated, 3-flowered ; 

 corolla 2' long, deep-red or red- purple, the border almost equally 5-cleft; 

 sterile filament naked. Mexico. Long cultivated. 



25. RUSSELLIA. (Named f or Dr. Alexander Eussell of Scotland.) If. 



R. Juncea, Zucc. A showy house and bedding plant; very smooth, 

 with leaves small lance-ovate or linear, or else reduced to little scales on 

 the copious, long, and rush-like, green, hanging branches and branchlets ; 

 corolla 1' long, narrow, bright carmine red. Mexico. 



26. CASTILLEIA, PAINTED CUP. (Named for Castillejo, a Span- 

 ish botanist.) There are several showy species on the plains from 

 beyond the Mississippi to the Pacific. Flowers all late spring and 

 summer. Root-parasites. 



C. coccfnea, Spreng. SCARLET P. Sandy low grounds ; pubescent, 

 simple-stemmed, l-2 high, with stem leaves cut-lobed, those next the 

 flowers 3-cleft, their dilated and cut-toothed lobes brilliant scarlet, while 

 the 2-cleft calyx is yellowish, and the narrow corolla pale yellow. @ 



27. SCHWALBEA, CHAFF-SEED. (C. G. Schwalbe, a German 

 botanist.) 11 



S. Americana, Linn. Minutely pubescent, upright, l-2, with sim- 

 ple leafy stems and a loose spike of rather showy purplish-yellow flowers ; 

 leaves alternate and sessile, 3-nerved and entire, ovate or oblong. Sandy 

 wet soil, near the coast, Mass. , S. 



28. FEDICTJLARIS, LOUSEWORT (which the name denotes). ^ 



P. Canade'nsis, Linn. COMMON P. or WOOD BETONY. Low, rather 

 hairy, with alternate leaves, the upper pinnatifid, lower pinnate ; a short 

 dense spike of greenish and purplish flowers ; oblique calyx without lobes, 

 but split down in front, and a dagger-shaped pod ; flowers spring. Dry 

 woods and banks. 



