172 SUMMER FLOWERS. 



ft Corolla gibbous at the base in front. 



(239) Antirrhinum calyx five-parted; corolla personate, the 



lower lip three-cleft, with a prominent palate closing the 

 mouth. 



fft Corolla equal at the base in front. 

 \ Calyx five-cleft. 



(240) Scrophularia corolla globose, the limb minute, upper lip 



two-lobed, lower three-lobed ; rudiment of a fifth stamen 

 often present. 



(241) Digitalis corolla bell-shaped, with broad tube, and oblique, 



4-5-cleft flat limb. 



(242) Pedicularis calyx inflated ; corolla ringent, the upper lip 



compressed laterally, the lower plane, three-lobed. 



J J Calyx four-cleft. 



(243) Bartsia calyx bell-shaped ; corolla tubular, two-lipped, the 



upper lip erect, arched, or concave, entire or notched ; 

 seeds many, striated or furrowed. 



(244) Euphrasia calyx tubular or bell-shaped ; corolla tubu- 



lar, two-lipped, the upper lip two-lobed, spreading or 

 reflexed ; seeds few, furrowed. 



(245) Rhinanthus calyx inflated, compressed, with a contracted 



mouth ; corolla ringent, the upper lip compressed laterally ; 

 seeds compressed, with an orbicular margin. 



(246) Melampyrum calyx tubular; corolla ringent, upper lip 



compressed laterally, with reflexed margins ; seeds smooth. 



52. Orobanchaceous Plants. OROBANCHACE^E. 



(247) Orobanche calyx deeply divided into 2-4 pointed sepals ; 



corolla tubular or bell-shaped, often curved. 



53. Chenopodiaceous Plants. CHENOFODIACEJE. 



* Stem jointed, without leaves. 



(248) Salicornia stamens 1-2 ; succulent maritime herbs. 



