DICOTYLEDONES-^COROLLIFLOE^ 



405 



Stigina shaped like an hour-glass. 



Estivation of corolla contorted Apocyiiacece. 

 Stigma not contracted in the middle 

 like an hour-glass. 

 jEstivation of corolla imbricate, 



placentas parietal . Gentianacece. 



^Estivation of corolla valvate, 



placentas axile . . SHlhacecB. 



i. Carpel solitary. 

 Stamens opposite the lobes of the corolla or 



petals ... , Pluiiibaghiacece. 



Stamens alternate to the lobes of the corolla. 

 Fruit 1-celled. Stigma sessile . . . Salvador acece. 

 Fruit spuriously 2-celled or rarely 4-celled. 



Style capillary Plantagi'nacets. 



J. Flowers irregular. 



a. Ovary -k-lohed . . Labiatce. 



b. Ovary not lohed. 



1. Carpel solitary . Selaginacece. 



2. Carpels two. 



Fruit hard or nut-like. 

 Anthers 1-celled . . . Selaginacece. 



Anthers 2-celled. Ovules erect. 



Corolla imbricate in testivation Verbenacecs. 



Corolla valvate in eestivation . Stilbacem. 



Anthers 2-celled. Ovules pendulous Myoporace(S. 



Fruit capsular or succulent. 

 Placentas parietal. 



Leafless scaly, brown, root-parasites . Orobanchacece. 

 Leafy plants. Seeds with wings Bignoniacece . 



Leafy plants. Seeds without wings. 

 Fruit a capsule or baccate. Cotyledons 



minute, radicle long . Gesne7-acece. 



Fruit bony or a capsule. Cotyledons 



large, radicle short . . Pedaliacece. 



Fruit woody with a pulpy interior. 



Cotyledons large, radicle short CresceniiacecB. 

 Placentas axile. 



Seeds without wings. 

 Albuminous . . ScrophulariacecB. 



Exalbuminous. Seeds a-ttacjied , to 



hard placental processes , Acauthacece. 



Seeds winged. Exalbuminous . Bigyioniacem. 



Placentas free central . , . LentibulariacecB. 



There are many exceptions to the characters above given of the Gamo- 

 petalse or Corolliflor*. [thus, among the Inferee or Epigynte we sometimes 

 find polypetalous corollas in GaprifoUacece and Lobeliacece, and the ovary 



