174< ENGLISH BOTANY. 



SPECIES I— BARTSIA ODONTITES. Iluds. 



Plate DrCCCXCIIL 



Reich. Ic. Fl. Germ, et Helv. Vol. XX. Tab. MDCCXXVII. 



Billot, Fl. Gall, et Germ. Exsicc. No. G2. 



Odontites rubra, Pers. Benth. in D. C. Prod. Vol. X. p. 551. Fries, Sum. Veg. Scand. 



p. 19. 

 Euphrasia Odontites, Linn. Bab. Man. Brit. Bot. ed. v. p. 247. 



Annual. Stem 4-angled, erect, paniculately branched, with 

 the branches opposite, erect or ascending. Leaves sessile, lan- 

 ceolate, acute, remotely serrate. Flowers in dense spikelike 

 racemes at the extremity of the stem and branches, subsecund. 

 Peduncles much shorter than the tube of the calyx. Corolla 

 ringent, hairy. Style longer than the upper lip. Capsule oblan- 

 ccolatc-oblong-ovoid, obtuse, apiculate, hairy, equalling or slightly 

 exceeding the calyx. Seeds minute, fusiform-oblong, ribbed, trans- 

 verse, striate between the ribs. 



Var. a, vulgaris. 



Odontites verna, Reich. Fl. Excurs. p. 359. 



O. rubra, Gt: & Godr. Fl. de Fr. Vol. II. p. GOG. 



Euphrasia Odontites, Koch, Syn. Fl. Germ, et Helv. p. G9. 



Branches ascending, nearly straight. Leaves rounded at the 

 base. Bracts usually exceeding the flowers. Calyx green tinged 

 with purple ; teeth as long as the tube, triangular-lanceolate. 



Var. B, serotina. 



Odontites serotina, Seich. Fl. Excurs. p. 359. Gr. & Godr. Fl. de Fr. Vol. II. p. 606. 

 Odontites verna, var. elegaus, Ball, in. Ann. Nat. Hist. ser. ii. Vol. IV. p. 29. 

 Euphrasia serotina, Lam. Koch, Syn. Fl. Germ, et Helv. ed. ii. p. 69. 



Branches spreading, then curving up wards, fiexuous. Leaves 

 attenuated towards the base. Bracts shorter than the llowers. 

 Calyx-teeth as long as the tube, triangular-lanceolate. 



Var. y, rotundata. 

 Odontites rotundata, Ball in Ann. Nat. Hist. ser. ii. Vol. IV. p. 30. 



" Floral leaves [bracts] equalling or shorter than the flowers. 

 Segments of the calyx one-third of its length, broadly-triangular. 

 Corolla rather shorter than in O. verna ; upper lip broad, convex, 

 including the anthers ; lower lip with three broadly-rounded nearly 

 equal segments. . . . Capsule broadly-oval, when ripe longer than 

 the calyx."— (Ball, /. c.) 



