484 208. SCROPHULARIACEAE 



2. Corolla 2-lipped with a helmet-shaped upper hp and a 3-lobed lower lipv 



Stamens 4. Anther-halves separate. Fruit capsular, loculicidal. Herbs. 

 Leaves well developed. Flowers in leafy spikes or racemes. [Tribe 



RHINANTHEAE.] 3 



Corolla 2-lipped with a flat upper lip, or i-lipped with only 3 distinct lobes, 

 or subequally 4 — 5-lobed 8 



3. Upper lip of the corolla with reflexed margins. Calyx 4-lobed. Seeds 



numerous, ribbed. Leaves undivided. — Species i. Azores. " Eye- 

 bright." Euphrasia L. 



Upper lip of the corolla with straight margins 4 



4. Calyx 5-lobed, slit in front. Corolla yellow. Capsule oblique, narrow- 



Leaves pinnately divided. — Species i. North-west Africa (Algeria)- 



" Lousewort." Pedicularis L- 



Calyx 4-lobed. Capsule straight. Leaves entire, toothed, or lobed. . 5 



5. Ovules few, pendulous. Corolla yellow or red. Capsule broad. Seeds 



ribbed. — Species 10. North Africa. Some are used medicinally. 



(Under Bartsia L.) Odontites Pers. 



Ovules many, horizontal 6 



6. Placentas thin. Seeds few, large, with wing-like ribs. Capsule broad. 



Corolla blue or red. — Species 8. Central and North-west Africa. 



{Bartsia L.) Bartschia L. 



Placentas thick. Seeds numerous, small. Corolla yellow or red. . . 7 



7. Seeds ribbed. Capsule broad. — Species 2. North and South Africa, 



Abyssinia, and Island of Reunion. {Trixago'S)ie.v.,\xndex Bartsial..) 



Bellardia All. 



Seeds smooth. Capsule narrow. — Species 3. North Africa. [Eufragia 



Griseb., under Bartsia L.) Parentucellia Viv. 



8. (2.) Anther-halves separate, sometimes one of them rudimentary or one 



only developed. Stamens 4, more or less unequal, rarely {Sirigina) 

 2 only fertile. Corolla with a distinct, usually long tube. Calyx-teeth 

 about as long as or shorter than the tube. [Tribe GERARDIEAE.] 9 

 Anther-halves confluent at the apex, more rarely separate, but then corolla- 

 tube very short and stamens nearly equal or reduced to twQ, or calyx- 

 teeth much longer than the tube. [Tribe DIGITALE AE.] . . 36 



9. Anthers i-celled (with one half only developed) in all stamens. ... 10 

 Anthers 2-celled (with both halves developed), at least in two of the stamens, 



but one cell (or half) sometimes smaller than the other and barren. . 17 



10. Corolla almost i-lipped, with only 3 distinct lobes ; tube curved ; limb 



narrow, convex. Calyx 5-cleft. Red-coloured, fleshy, parasitic herbs. 



Leaves reduced to scales. Flowers in terminal spikes. — Species 5. 



South Africa Hyobanche Thunb» 



Corolla regular or 2-lipped, distinctly 4 — 5-lobed. Green herbs with well 

 developed leaves i r 



