Class IV. TETRANDRIA. Stamens 



4, equal. 



Orderl. MONOGYNIA. Pistil I. 



* Flo'wers mojiopetalous, superim; single-seeded. 



65. DIPSACUS. Common Col. of many leaves. Proper 



Cat. single, superior, of 1 leaf, cup-shaped, crowning 

 the seed. 



66. SCABIOSA. Com. Cal. of many leaves. Prop. Cal. 

 double, superior, crowning the seed. 



** Fl. vionop., superior, 2-seeded. 



70. RUBIA. Cor. bell-shaped. Fruit pulpy. 

 69. GALIUM. Cor. flat. Fr. dry. 



68. ASPERULA. Cor. tubular. Fr. without a crown. 



67. SHERARDIA. Cor. tubular. Fr. crowned with the 

 caljTc, each seed with 3 teeth. 



*** Fl. monop., inferior. 



71. EXACUM. Cor. salver-shaped, spreadmg. 8tam. 



shorter than the Imib. Caps, with 2 valves, separating 

 at the top, many- seeded. 



72. PLANTAGO. Cor. reflexed. 8tcm. very long. Caps. 

 bursting all romid, of 2 or 4 cells. 



73. CENTUNCULUS. Cor. tubular, spreading. Stam. 

 within the tube. Caps, bursting all round, of 1 cell. 



Some Gentmnce. 

 ****- Petals 4. 



75. EPIMEDIUM. Nect. 4, hollow, lying on the petals. 

 Pod superior, of 1 cell, with many seeds. Cal. de- 

 ciduous. 



76. CORNUS. Nect. 0. Drupa inferior. Ntit of 2 cells. 



Cardamine. Senehiera, 2. 



