33i 27. GENTIANS. PLex^ot, 



Fam.X. 27. GENTIANS. 



Calyx 1 -leafed, 5 rarely 8-cut, persistent; corolla mono- 

 petalous, ^ypogynousj regular, withering or falling off; 

 limbs lobed; lobes equal to the lobes of the calyx; aestivation 

 imbricate ; stamens as many as the lobes, alternating with 

 them ; ovary 1 , free, 1 or 2-celled, many-seeded ; style 1 , 

 rarely 2 ; stigma simple or 2-lobed ; capsule many-seeded, 

 1 or 2-celled, 2-valved ; valves with inflected edges, which, 

 in the 2-celled, form the dissepiments ; seeds small, on the 

 ed^ge of the valves ; corculum straight, in the centre of the 

 fleshy perisperm ; radicle near the umbilicus. — Stipules ; 

 flowers terminal or axillary. 



Corolla rotate ; lobes fringed ; base 

 bearded ; seeds margined, fringed Limnanthe. 98. 



Corolla rotate ; lobes bald ; base 

 2-glandular ; seeds margined, not cut Swertia. 97. 



Cor. rotate, 8-cut ; lobes bald ; base 

 naked ; seeds ovate Chlora. 96. 



Cor. funnelshape ; tube long ; stigma 

 2-cut ; anthers becoming spirally twisted . . Eryth^a. Oi. 



Cor. funnelshape ; lobes hairy ; stigma 

 capitate ; leaves ternate Menyanthes. 99. 



Cor. funnelshape; mouth naked; lobes 

 not fringed, eared ; anthers distinct Ericala. 92. 



Cor. hypocrateriform ; mouth bearded : 

 lobes 4 or 5, not fringed; anthers distinct Erythalia. 93. 



Cor. hypocrateriform ; tube bellied ; 

 lobes 4 ; anthers straight ; stigma capitate 



Franquevillia. 95* 



Cor. bellshape ; mouth naked ; lobes 

 not fringed; anthers connate Pneumonanthe. 91. 



A. GENTiANiE VERiE. Leaves opposite, mostly sessile; 

 edge not cut; capsule 1-celled; herb very bitter. 



I. 91. PNEUMONANTHE. Val. Cordus. Lung/lower. 

 Calyx rather 5-sided, 5-toothed ; corolla bellshape, 5-cut ; 

 mouth naked; teeth 5, alternating with the lobes; edge not 

 cut; stamens 5; antheis grown together into a tube; stig- 

 mata 2, sessile; capsule oblong, 1-celled, 2-valved, opening 

 at the tip ; seed round, not margined. — Root perennial ; 

 Jiowers blue, plaited. 



