14 TETRADYNAMIA.— SILICULOSA. 



406. BARTSIA. Scrophularince. 

 B. pallida: leaves alternate, linear, undivided: 



upper ones lanceolate ; floral ones subovate. 



slightly toothed at the end ; all 3-nerved ; teeth 



of the calyx entire. 

 HAB. High mountains. Aug. H . Stem pubes.; 



Jl. yell., pubes. 



407. MELAMPYRUM. Cow-wheat. Melampyracea; . 

 M. lineare : leaves linear-lanceolate ; the floral 



ones with setaceous teeth at the base ; flowers 



axillary. 

 1IAB. Woods. June— July. ©. Stem Z— Win. 



high, bran. ; fl.-leav. ovate-Ian. 



408. OROBANCHE. Broom-rape. Orobanchecc. 



1. O. americana : stem very simple ; imbricate with 

 oval-lanceolate scales ; spike terminal, smooth ; 

 corolla recurved, with the stamens exserted. 

 HAB. Woods. July. U. Stem 4—6 in. high, 

 very thick, br.-yell., leafless, scaly ; Jl. bract. 



.'. O. vniflora: stem very short ; peduncles 2, elonga- 

 ted, scapiform, 1-flowcred, naked ; scales smooth, 

 concave ; lobes of the corolla oblong-oval, with a 

 pubescent coloured margin. 

 HAB. Woods. May— July. U. Pedunc. 4— 6 in. 

 long, subpubes. ; Jl. recurv., bl.-wh. 



409. EPIPHAGUS. Beech-drops. Orobanchecc. 



E. virginiana. 



HAB. Beech woods. Sept. U. Leafless, branch 



ed, smooth; 8 — 12 in. high; jl. distant ; abort, ones 



larger, purplish. 



TETRADYNAMIA, 

 SILICULOSA. 



0. CAKILE. Silicle compressed, of 2 single-seedeo 

 joints ; superior joint with an erect single 



