CL. XIV.] DIDYNAMIA ANGIOSPERMIA. 255 



eight inches high, simple, hairy : leaves sessile in pairs on the op- 

 posite sides of the stem, somewhat heart-shaped: flowers axillar, 

 forming a close leafy spike : corolla purplish-blue : calyx purplish. 

 Perennial : flowers in July : grows in elevated pastures, in the 

 Highlands of Scotland and the north of England : rare. Eng. Bot. 

 vol. vi. pi. 361. Eng.FL vol. iii. p. 117. 894. 



2. B. viscosa. Yelloio Bartsia. Leaves lance-shaped, serrate, the 

 upper alternate ; flowers lateral and distant ; stem round ; root 



fibrous. Stem erect, downy, about a foot high: corolla yellow, 



with purple stains. Annual : flowers in July and August : grows 

 in marshy ground, along the west coast : frequent. Eng. Bot. vol. 

 xv. pi. 1045. Eng. Fl. vol. iii. p. 118. 895. 



3. B. Odontites. Red Bartsia. Leaves lance-shaped, serrate, the 

 upper alternate ; flowers in unilateral clusters ; stems square, 



branched. Stem from six inches to a foot high, branched, the 



branches terminating in a leafy cluster of numerous rose-coloured 

 flowers. Perennial: flowers in July and August : grows in moist 

 meadows and pastures, and in corn-fields, and by road-sides : com- 

 mon. Eng. Bot. vol. xx. pi. 1415. Eng. Fl. vol. iii. p. 119. 896. 



22. KHINA'NTHUS. YELLOW -RATTLE. 



Calyx of one leaf, roundish, inflated, compressed, with four 

 nearly equal, acute, marginal teeth. Corolla gaping; tube 

 nearly cylindrical, as long as the calyx ; upper lip narrower, 

 helmet-shaped, compressed, slightly cleft; lower lip broader, 

 expanded, deeply divided into three obtuse segments, the mid- 

 dle one somewhat larger. Filaments thread-shaped, shorter than 

 the upper lip, and concealed by it ; anthers two-lobed, hairy. 

 Germen egg-shaped, compressed, with a channel at each side. 

 Style thread-shaped, curved, a little longer than the stamens ; 

 stigma obtuse, bent inwards. Capsule roundish, compressed, 

 with a small point, two-celled, two-valved ; partitions trans- 

 verse, united. Seeds compressed, imbricated, bordered. 

 Name, from rhin, the nose, and anthos, a flower. 301. 



1. R. Crista-gdtti. fellow-rattle. Stem branched, leaves lance- 

 shaped, serrate ; calyx smooth, seeds with a dilated membranous 



border. Stem about a foot high, generally with a few branches, 



sometimes bushy : leaves rough, wrinkled, flowers axillar, crowd- 

 ed into a leafy spike : calyx membranous : corolla yellow : the 

 ripe seeds rattle in the capsule. Annual: flowers in June : grows 

 in pastures : common. Eng. Bot, vol. x. pi. 657. Eng. Fl. vol. iii. 

 p. 120. A variety of large size and slight difference in the leaves 

 is considered by some as a distinct species, under the name of 

 R. major. Eng. Bot. Suppl. pi. 2737. Brit. Fl. 4th ed. p. 236. 897. 



23. EUPHKA'SIA. EYE-BRIGHT. 



Calyx of one leaf, tubular, cylindrical, ribbed, with four deep, 

 equal, pointed, marginal teeth. Corolla gaping; tube as long 

 as the calyx, cylindrical ; upper lip slightly concave, crenate ; 

 lower lip "divided into three deep, unequal, obtuse, cleft or 

 notched segments. Filaments thread-shaped, directed towards 



