122 DIDYNAMIA— ANGIOSPERMIA. Euphrasia. 



in 4 deep, equal, pointed teeth. Co7\ ringent, open ; tube 

 the length of the calyx, cylindrical ; throat short, some- 

 what wider ; limb variable in size ; its upper lip slightly 

 concave, with several notches ; lower spreading, in 3 deep, 

 more or less unec^ual, obtuse, cloven, or inversely heart- 

 shaped, lobes. Filam. thread-shaped, directed towards 

 the upper lip. Antk. mcumbent, large, of 2 roundish 

 lobes pointed at their base, the points of the lower an- 

 thers elongated into straight bristly spines, of unequal 

 lengths. Germ, ovate. St2/le thread-shaped, as long as 

 the stamens. Stigma obtuse, undivided. Caps, oblong, 

 obtuse, compressed, of 2 cells and 2 membranous valves. 

 Seeds several, minute, elliptic-oblong, compressed, nu- 

 merously furrowed longitudinally at each side. 

 Branched herbs of humble growth, smooth or downy, not 

 aromatic. Leaves opposite, sessile, either ovate and ser- 

 rated, or linear and entire. Fl. in leafy spikes, nume- 

 rous, either variegated or yellow. 



1. E. officinalis. Common Eye-bright. 

 Leaves ovate, furrowed, sharply toothed. 



E. officinalis. Lmw.%P/. 841. mZW.f.3. 193. FLBr.650. 



Engl. Bot. V. 20. f. 141 6. Curt. Lond.fasc. 5. t. 42. Woodv. 



suppl. t. 220. Hook. Scot. 1 86. Bull. Fr. t. 233. 

 E. n. 303. Hall. Hist. v. \. 133. 

 Euphrasia. Rail Syn. *2S4. Riv. Monop. Irr. t. 90. f. \. Fuchs. 



Hist.246.f. Ic.\37.f. Trag. Hist.32S.f. Ger. Em.663.f. Lob. 



Ic. 496./. 

 Euphragia. Matth. Valgr.v.2.369.f. Carrier. Epit.767.f. 



On heaths, and in mountainous pastures, abundantly. 



Annual. July — September. 



An elegant little plant, varying in height from one inch to 4 or 5, 

 with a square, downy, leafy stem, either simple or branched. 

 Leaves i or | an inch long, almost entirely opposite, ovate or 

 heart-shaped, downy, strongly ribbed and furrowed, with sharp 

 tooth-like serratures. Fl. axillary, solitary, very abundant, in- 

 odorous, but remarkable for their brilliant variegated aspect, on 

 which account, it seems, the plant became celebrated as good 

 for weak eyes. The corolla varies much in size as well as co- 

 lour, being commonly white, with deep purple streaks, and a 

 yellowish palate j the anthers violet. On the mountains of 

 Scotland there is a more slender variety, with smaller but more 

 richly tinted blossoms ; on the Alps a dwarf, large-flowered, 

 more purple variety is common. The seeds are few, somewhat 

 angular, thin at the edges, strongly striated, or furrowed, at the 

 sides. 



