SCROPHULARIACE.t:. (iniWolM lAMILV.) 379 



21. Orthocarpus. Calyx tubuhir-ciimpanulaie, 4-clcrt. Upi^er lip of corolla little lon;ier 

 and usually much narrower than the inflated lower one. 



• « Anther-cells equal. Capsule many - several-seeded. 

 2-2. Scliwalbea. Calyx 5-toothcd, very oblique, the upper tooth mu«h the smallest. 



23. Euphrasia. .Calyx 4-cleft. Upj)fr lip of the corolla 'J-lobed, and sides folded back. 



L'ap.sule oblong. 



24. Bartsia. Calyx 4-cleft. Upper lip of corolla entire and sides not folded back. 

 2:). Khinanthus. Calyx inflated, ovate Capsule orbicular : seeds wini,'(!d. 



2G. Petlirularis. Calyx not inflated. Capsule ovate or sword-shaped ; seeds wingless. 



• * ♦ Anther-cells equal. Cajjsule l-4-.seeded. 

 27. Melampyruni. Calyx 4-cleft. Ovary 2-celled, 4-ovuled. Cajisule flat, oblique. 



1. VERB AS CUM, L. Mlllkix. 



Calyx 5-parted. Corolla .j-lohod, open or concave, wheel-shaped , the lobes 

 broad and rounded, a little unccinal Stamens.'), all the filaments, or the 3 

 upper, woolly. Style flattene<l at the apex. Capsule glol)ular, many-seeded. 



— Tall and u.sually woolly biennial herbs, with alternate leaves, those of the 

 stem sessile or decurrent. Flowers in large terminal spikes or racemes, ephem- 

 eral ; in summer. ( rhe ancient Latin name, altered from Barbascum.) 



V. Th.\.psus, L. (Common Mi;i,lcin ) Dtn^eiif iroolltf throuf/hout ; stem 

 tall and stout, sim})/e, Avinged by tiic decurrent bases of the oblong acute leaves : 

 floicers (yellow, very rarely white) /// (i jiro/onf/fd utid vcri/ dense ci//indrical 

 spike: lower stamens usually beardless. — Fields, a common weed. (Nat. 

 from Eu.) 



V. BlattXria, L. (Moth M.) (Jreeu and smnothish, slender ; lower leaves 

 petioled, oblong, doubly serrate, sometimes lyre-shaped, the upper partly clasj)- 

 ing ; raceme loose ; filaments all bearded with violet wool. — Koadsides, through- 

 out our rauge. Corolla either yellow, or white with a tinge of purple. (Nat. 

 from Eu.) 



V. LvciiNiTis, L. (White M.) Clof/ied ivith thin powder i/ u-ool/mess ; 

 stem and branches angled above ; leaves ovate, acute, not decurrent, greenish 

 above ; Jiowers (yellow, rarely white) in a pi/ramida! panicle; filaments with 

 whitish wool. — Fields, N. Atlantic States, rather rare. (Adv. from Eu.) 



2. LIN ARIA, Tourn. Toad-Flax. 



Calyx 5-parted. Corolla personate, with the prominent palate often nearly 

 closing the throat, spurred at base on the lower side. Stamens 4. Capsule 

 thin, opening below the summit by one or two pores or chinks. Seeds many. 



— Herbs, with at least all the upper leaves alternate (in ours) , fl. in summer. 

 (Name from Lmum, the Flax, which the leaves of some species resemble.) 



* Slender glahrons annual or biennial : leaves linear, entire and alternate (or 



smaller, oblong, and opposite on jnocumbent sfioots) , small blue flowers in a 

 naked lenninal rarrme. 



1. L. Canadensis, Dumont. Flowering stems nearly simple (fi-.30' 

 high); leaves flat (1-2" wide); pedicels erect, not longer than the filiform 

 curved spur of the corolla. — Sandy soil, conmion. 



* * Perennial, erect (1 -3° hi;/Ii),(/labrous,ivith uan'ow entire and alternate pale 



leaves, and i/i How flowers in a terminal raceme. 



L. vulgXris, Mill. (Ramstkd. Butter and Er.cs.) Leaves linear or 

 nearly so, extremely numerous; raceme dense; corolla l' long or more, in- 

 cluding the slender subulate spur; seeds winged. — Fields and roadsides, 

 throughout our range. (Nat. from Eu.) 



