VERBASCUM. XCI. SCROPHULARIACE^E. 397 



f Calyx $ Sterile fils. minute or 0. Gratiola. 13 



(Corolla <5-parted. (Sterile fils. forked. . llysanth'us. 14 



< bilabiate. (JCalyx 4-parted. Fl. minute. . Hemianthus. 15 



Flowers diandrous. ( Corolla subequally 4-lobed ..... Veronica. 19 



i Leaves serrate.- . Mimulus. 10 



( Stamens < Leaves multirid. . Conobea. 11 



I included. ( Leaves entire. . Herpestis. 12 



< Sta. ascending ( Fls. spicate. Rhinanthus. 27 

 Corolla I beneath the galea. I Fls. solitary. Melampyi-um.29 



bilabiate. (.Sta. declinate in lower lip. . Collinsia. 7 



$ Lvs. ovate-lanceolate. . Buchnera. 20 



Cor.5- (purple. (Lvs. linear, entire. . . Gerardia. 22 



toned,] $Cii\.5-peirte<l.Seymcria. 21 



. { Cal.5-looth'd.Dasystoma. 24 



Herbs with oppo- 

 site leaves 



sub- | $ Anth. equal. ... 



I or minute. I equal, I yellow. I Anthers unequal. . , Otophylla. 23 

 < Sterile filament scale-like, adherent to the ovoid corolla. Scrophularia. 6 

 Fls. didy- Sterile filament shorter, glabrous. Seeds winged. . Chelcme. 8 



namous. LSterile filament long, exserted. bearded. Sds. apterous. Pentstemon. 9 

 Trees with large cordate leaves, and panicles of tubular, scarlet flowers. . . . Paulownia. 5 



TRIBE 1. SAL.PIGLOSSEJ]:. 



1. SCHIZANTHUS. Ruiz & Pavon. 

 Gr. ffvi^a, to cut, av6o$, a flower; in allusion to the numerous divisions of the showy corolla. 



Corolla irregula'r, the upper lip 5-cleft, external in aestivation, low- 

 er much smaller, 3-parted : filaments 4, 2 of them sterile ; capsule 

 2-celled. from Chili. Lvs. pinnatifid, alternate. Cymes supra- 

 axillary. 



S. PINNATUS. Ruiz & Pavon. Lvs. 1 2-pinnately cleft ; cor. tube shorter 

 than the calyx, middle segment of the posterior lip, 2-lobed, cucullate, lateral 

 segment falcate-spatulate, middle segment of the anterior lip emarginate, late- 

 ral 4-lobed; sta. exserted. Plant 1 2f high, with delicate and beautiful flowers 

 in clusters opposite the leaves. Calyx and peduncles viscid-pubescent. Corolla 

 purple and yellow, with a dark spot in the midst, f 



TRIBE 2. VERBASCEJE. 



2. VERBASCUM. 

 Lat. barba, beard ; a name significant of the beard with which the plant is covered. 



Corolla rotate, 5-lobed, unequal ; stamens 5, decimate, all perfect ; 

 capsule ovoid-globose, 2-valved. rarely Q or suffruticose. Lvs. al- 

 ternate. Fls. in spikes or paniculate racemes. 



1. V. THAPSUS. Common Mullein. 



Lvs. decurrent, densely tomentose on both sides ; rac. spiked, dense ; three 

 of the stamens downy, two of them smooth. The tall, dense, club-shaped spikes 

 of the common mullein are very conspicuous in every slovenly field and by all 

 roadsides, U. S. and Can. Stem erect, 3 5f high, woolly, its angles winged 

 by the decurrent base of the leaves, generally simple, occasionally with one or 

 two branches above. Leaves very rough with dense woolbn both sides. Flow- 

 ers rotate, of a 1 golden yellow, nearly sessile. Notwithstanding its frequency, 

 the mullein is generally supposed to "have been introduced. Jn. Aug. 



2. V. BLATTARIA. Moth Mullein. 



Lvs. clasping, oblong, smooth, serrate ; ped. 1-flowered, solitary. () Grows 

 in waste grounds, roadsides, N. Eng. to la.! not common. Stem 3f high, 

 branching above, bearing a terminal, leafy raceme 2 4' long. Lower leaves 

 oblong, obovate; upper ones cordate-ovate, all coarsely and doubly serrate. 

 Flowers on pedicels near an inch in length. Corolla yellow or white, marked 

 with brown at the back. Stamens unequal, purplish, the filaments all hairy. 

 . Jn. Jl. 



3. V. LYCHNITIS. 



Whitish subtomentose ; st. and paniculate branches angular ; Ivs. green 

 above, crenate, lower petioled, narrowed to the base, upper ones sessile ; panicte 

 pyramidal, fascicles loosely many-flowered ; cat. small, with lance-subulate seg- 

 ments ; fit. wi^h white wool. Banks of the Delaware, near Philadelphia, Pursh. 

 Ky. McMurt. Leaves very canescent beneath. Flowers pale yellow. 



