248 cm. scEOPHULAEnsfEa!. (J. D. Hooker.) 



Calyx tubular, 5-toothed. Anthers 1-celled. Leaves op- 

 posite, broad, fleshy 29. PEPLrDixru:. 



Calyx shortly 3-4-lobed. Anther-cells confluent at the 

 tips. Leaves opposite, fascicled 30. Glossostigma. 



Calyx 5-toothed. Stamens 4. Anther-cells confluent. 



Leaves and pedicels radical 31. Limoselia. 



Series 0. XUiinantllidese. Leaves various. Inflorescence usually cen- 

 tripetal <yr composite. Corolla-lobes variously imbricate, anterior or lateral 

 usually the outer in bud. Stamens 2 or 4, the 5th very rarely present. 



Tribe VII. Dig'italeee. Corolla-lobes all flat, usually spreading, the 

 lateral, or one of them, exterior in bud. Anther-cells usually confluent at the 

 tip and spreading below, rarely wholly confluent. — Herbs, Leaves various. 

 Inflorescence simply centripetal. 



Stjbtkebe I. SiBiHOKPrELs;. Corolla subrotate, lobes 4^5 or more. Stamens 

 as many as the lobes, or fewer by one, equal ; anthers sagittate or horseshoe- 

 shaped. 



Calyx 4-8-fid. Corolla 5-8-fid. Creeping herbs .... 32. Sibthoepia. 

 Calyx 6-partite. Corolla 5-fid. Creeping herb, leaves 



dimorphic 33. Hemipkeagma. 



Calyx 4-5 partite. Corolla 4-fid. Erect herb .... 34. Scoparia. 



SxTBTBiBE n. ExTDiGiTAiE^. Corollortvhe elongate, ventricose above or 

 below. Stamens 4, didynamous, or 2 ; anther-ceUs confluent at the tips or 

 wholly. 

 Leaves alternate, linear. Kaceme terminal. Stamens 2 . 35. Camftianthus. 



SuBTKiBE III. VBEONiCBiE. Corolla rotate or tube campanulate or cylin- 

 dric, 4-5-lobed. Stamens 2 or 4, exserted (or included in Wulfenid), equal ; 

 anthers distant ; anther-cells parallel or divergent, tips confluent. — Leaves alter- 

 nate or radical. 



Flowers dimorphic. Stamens 4. ■ Leaves radical . . . . 36. Picbobhiza. 



Corolla-tube cjlindrio. Stamens 4. Leaves subradical . 37. WmiPENiA. 



Corolla-tube incurved. Stamens 2. Leaves alternate . . 38. Calobhabhos, 

 Corolla-tube short. Stamens 2. Leaves (or the lovper) 



opposite 39. Vehonica. 



Tbibe VIII. GerardiesB. Corolla-lobes aU flat, spreading, 2 upper 

 usually interior in bud. Anther-cells distinct throughout, bases often mucro- 

 nate, equal or one imperfect or wanting. — Usually root-parasites, turning black 

 when dry. 



SuBXMBB I, EscoBEniEa;. Calyx-lobes valvate. Anthers 2-celled. — Leafy 

 herbs, rarely shrubs. 



Calyx campanulate. Corolla oblique. Spikes bracteate . 40. Axbctra. 



Stibtribe II. BTTCHNBRBiE. Calyx tubular or subcampanulate. Corollar 

 tiibe slender, limb spreading. Anthers 1-celled, cell narrow, tip usually mucro- 

 nate. — ^Leafy herbs ; lower leaves opposite. 



Calyx tubular, 5-toothed. CoroUa-tube straight or sub- 

 curved 41. Btjchneea. 



Calyx tubular, 5-toothed. CoroUa-tube abruptly incurved 42. Stkioa. 



Calyx subcampanulate, 5-fid. CoroUa-tube straight or 



curved 43. Bamfhicabpa. 



