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scRUPHUL.utiACEa; (Hiern). 



[Sutera. 



riaut nearly glabrous (3) rotundifolia. 



Plant more or less pubescent : 



Leaves shortly petiolate ; calyx- 



seginents subacute ... ... (4) panciflora. 



Leaves sessile or subsessile ; 



calyx -segments obtuse ... (5) roseoflava. 

 Corolla -tube subcylindrical : 



Flowers tliyrsoid-racemose (6) elliotengis. 



Flowers simply racemose : 



Calyx about J-i in. long; 



segments subulate, acute ... (7) poleleaiis. 

 Calyx about rV-yij in. long in 

 flower ; segments linear, 



obtuse (8) flexuoia. 



'\\ Leaves sublinear, oblong, lanceolate, or 

 ovate : 



Corolla-tube broadly funnel-shaped : 

 Calyx-lobes 5 ; flowers simply race- 

 mose (9) campannlata. 



Calyx-lobes 6-8 ; flowers in simple 

 or slightly compound racemes : 



Flowers i-i in. long (10) polysepala. 



Flowers |-^ in. long (11) calycina. 



Corolla-tube cylindrical-funnel-shaped 

 or salver-shaped : 

 Stems prostrate : 



Branches glandular-puberulous, 



diverging (12) procTimbein. 



Branches sYiortly pubescent, inter- 

 lacing (13) intertexta. 



Stems erect, ascending or procum- 

 bent : 

 Corolla-tube not or scarcely ex- 

 ceeding the calyx : 



Branches moderately leafy : 



Plant finely viscid-pilose or 



glandular-puberulous : 



Suffruticose ; branches 



wiry ; calyx deeply 



5-lobed (14) cserulea. 



Sub herbaceous; 

 branches slender, 

 often zigzag ; calyx 



5-cleft (15) palustriB. 



Plant nearly glabrous or 

 minutely glandular- 

 squamulose : 



Leaves obtuse; calyx 

 minutely sessile- 

 glandular, t'o~i ^^• 



long (16) halimifolia. 



Leaves pungent at the 

 apex ; calyx bearing 

 small scales, about 



i in. long ... (17) stenophylla- 



Branches sparingly leafy ... (18) subnuda. 

 Corolla-tube shortly exceeding the 

 calyx : 



Root annual : 

 Branches minutely glandu- 

 lar-puberulous or nearly 

 glabrous (19) Iftxiflora. 



