76 TETRANDRIA.— M0N0GYN1A. 



112. LINNiEA. Cal. double ; that of the fruit 2-leaved ; 



inferior; of the flower 5-parted, superior. Cor. 

 turbinate, subcampanulate, 5-lobed, equal. Stam, 

 somewhat didynamous. Stig globose. Berry 

 dry, 3-celled, (only one of the cells bearing a per- 

 fect seed.) 



t t Polypetalous. 



113. SANGUISORBA. Cal. 2-leaved. Cor. 4-cleft, 



rotate. Caps, quadrangular, between the calyx 

 and corolla, 1 — 2-celled. 



114. CORNUS. Flowers sometimes aggregated in a 4- 



leaved involucrum. — '■Cal. 4-toothed. Pet. 4, 

 Drupe with a 2-celled nut. 



115. LUDW1GIA. Cal. 4-parted, persistent. Cor. 4- 



petalled or 0. Caps, quadrangular, 4-celled, in- 

 ferior, many-seeded. 



1 1 1 Apetalous. 



116. ISNARD1A. Cal. campanulate, 4-cleft. Cor. 0. 



Caps. 4-celled, quadrangular, surrounded by the 

 base of the calyx. 



B. Flowers inferior. 

 t Monopetalous. 



117. PLANT AGO. Cal. 4-cleft. Cor. 4 -cleft :"; limb re- 



flexed. Stam. mostly exserted, very long. Caps. 

 2-cHled, opening all round transversely. 



118. BARTON1A. Cal. 4-parted, appressed. Cor. 



subcampanulate, 4-parted ; segments somewhat 

 erect. Stig. thick, glandular, somewhat bifid. 

 Caps. 1 -celled, 2-valved, many-seeded, sur- 

 rounded by the persistent calyx and corolla. 



119. EXACUM. Cal. deeply 4-parted. Cor. 4-cleft: 



tube globose Caps, bisulcate, 2-celled, many- 

 seeded, opening at the summit ; cells 2-seeded. 



120. SWERTIA. Cal. flat, 4— 5-parted. Cor. 4- 



parted ; segments spreading, with 2 nectariferous 

 ciliate pores at the base of each. Style short ; 

 stig. 2. Caps. 1-cellpd. 2-valved, acuminate. 



121. FRASERA. Cal. deeply 4-parted. Cor. 4-parted, 



spreariing ; segments oval, with a bearded, or- 

 bicular gland in the middle of each. Caps, com- 



