528 ORDER 86. SCROPHULARIACE^E. 



9 V. serpyllifolia L. Subglabrous, much branched below; sts. ascending; Ivs. 

 oval, subcrenate, obtuse, lower roundish and petiolate, upper sessile, passing 

 abruptly into oblong, entire, alternate bracts ; ped. longer than the ovate sepals ; 

 caps, obcordate, broader than long. If Meadows and mountain valleys, in grass, 

 etc., U. S. and Can. Plant varying in height from 3' to 12'. Leaves rather 

 fleshy, 3 -veined, 4 12" long, petioles 2". Racemes bracted, rather close in 

 flower, elongating in fruit to 2 5'. Corolla scarcely exceeding the calyx, blue 

 and white, penciled with purple lines. May Aug. 



10 V. alpina L. Branched at base, ascending; Ivs. roundish-oval, subentire, 

 very obtuse, short-petioled, upper elliptical and much smaller ; rac. hairy, few- 

 flowered, usually dense ; ped about as long as the calyx ; stam. shorter than tbo 

 corolla; caps, obovate, emarginate. White Mts., N. II. and Rocky Mts. Plant 1 

 to 5' long. Lvs. about 4" by 5''. Fls. small, blue. Scarcely distinguishable 

 from dwarf specimens of No. 9. 



11 V. peregrina L. Ascending, subglabrous ; Ivs. petiolate, oblong, few-toothed, 

 obtuse, upper sessile, oblong, obtuse, serrate or entire, lloral oblong-linear, entire, 

 longer than the subsessile flowers ; caps, suborbicular, slightly notched, the lobes 

 rounded. CD Throughout N. Am., in fields or clayey soils. Plant often branched 

 from the base, 4 to 10' high. Lvs. rather fleshy, the upper cauline, 6 to 11" long, 

 floral much smaller. Sepals oblong, longer than the pale blue or white corolla. 

 Caps, hardly broader than long. May, Jii. (V. Marilandica Willd.) 



12 V. arvensis L. CORN" SPEEDWELL. Puberuknt-pllous, simple or branched, 

 erect or assurgent ; Ivs. ovate or roundish, subcordate, incisely crenate, lower ones 

 petiolate, upper and floral alternate, lanceolate, crenate, sessile ; ped. shorter than 

 the calyx. Frequent in dry fields, K 11. to Ga. and La. A small, pubescent, 

 pale-green plant, 2 to 6' high. St. nearly erect, branching from the base, the 

 leaves assurgent. Cor. shorter than tho cal, pale blue, penciled with purple 

 lines. May, Jn. 



^. REXIFORHIS. Lvs. sessile, reniform, entire. (Y. reniformis Raf.) 



13 V. spicata L. SPIKED SPEEDWELL. Erect, tall ; Ivs. petiolate, ovate- 

 oblong or lanceolate, lower ones obtuse, crenate, upper acute, crenate-serrate, entire 

 at apex ; rac. mostly solitary ; pedicels much shorter than the sepals ; cal. mostly 

 hoary-pubescent. U Europe and Asia, A beautiful garden species with numer- 

 ous varieties. Flowers blue, roseate, etc. f 



14 V. gentianoides Vahl. St. csespitous; flowering branches erect, simple ; 

 Ivs. thick, entire, or sparingly crenate ; lowest crowded, obovate or oblong, the rest 

 remote, oblong or lanceolate, the floral bract-like ; rac. loosely many-flowered, 

 pubescent; ped. many times longer than the calyx. Fls. rather large, blue. 

 f Asia. 



25. BUCHNE'RA, L. BLUE-HEARTS. (In honor of J. G. Buchner, a 

 German botanist, 1743.) Calyx 5-toothcd ; corolla salver form, tube 

 slender, limb flat, in 5, obovatc-oblong, subequal lobes ; stamens 4, in- 

 cluded, anthers halved, i. c., with but one cell ; capsule 2-valved. Herbs, 

 with the lower Ivs. opposite, the upper alternate. Fls. in a terminal 

 spike. 



B. Americana L. Tall, slender, hispid, very rough ; Ivs. oblong-lanceolate, few- 

 toothed, obtuse, 3-veined, the lowest oblong-obovate ; highest linear ; spike long- 

 peduncled; fls. dense, becoming remote in fruit; cor. tube slender, pubescent, 

 twice as long as the hispid, tubular calyx, or the deep blue cor. lobes. N. Y. to 

 Ga. and La. Sts. 2 to 3f high, simple or few-branched, the upper half naked or 

 with bracts only. Lvs. 1 to 2' long. Fls. 6 to 12 in the spike, 6 to 7" long. Jn. 

 Aug. (B. elongata Sw. ? (Darby) is the same plant). Blackens in drying. 



26. MACRAN'THERA, Torr. (Gr. {uucpo?, great, Lat. anthem, an- 

 thers ; a mongrel word.) Calyx tube campanulate, lobes 5, long and 

 narrow ; corolla tubular, limb oblique, segments short, entire, stamens 

 4, long, exserted, subequal ; style long, filiform ; capsule ovate, acumi- 



