CONSPECTUS OF THE ORDERS CONTAINED IN 

 THE FOURTH VOLUME.— SECTION ]. 



Class L DICOTYLEDONES. 

 Sub-Class II. GAMOPETALA. 



Cohort VIZ. — Gentlanales. Corolla regular. Stamens as many as the 

 corolla-lobes and alternate with them, or if fewer alternate with the carpels. Leaves 

 opposite, rarely alternate. 



LXXXII. OleacEvE. Stamens 2, alternate with the carpels, rarely 4. Corolla 

 4_5_x -merous. Style simple; stigma terminal. Ovary 2-celled; ovules usually 

 2 in each cell, fixed to the septum. Stipules 0. 



LXXXIII. Salvadorace^. Stamens and corolla-lobes 4. Rudimentary 

 stipules present. Otherwise as in Oleacece. 



LXXXIV. Apocynace^. Stamens and corolla-lobes usually 5. Polleu loose, 

 rarely cohering. Carpels free or united ; style simple, at least above, with a 

 stigmatic ring below or around the smooth apex. Fruit baccate, drupaceous, or of 

 2 distinct follicles. 



LXXXV. Asclepiade^. Corolla-lobes usually 5. Stamens 5; anthers free 

 or united to the dilated part of the style ; pollen granular or in waxy masses. 

 Carpels separating; style simple, at least above, expanded at the apex into a flat or 

 beaked disk with 5 stigmatic cavities. Follicles 2 or 1. 



LXXXVI. L^^aANiACE^. Stamens and corolla-lobes 4-5, rarely many. Ovary 

 2-celled ; style simp. ^. Leaves connected by a transverse line or by stipules. 



LXXXVII. Gent, vne^e. Stamens and corolla-lobes 4-5, rarely many. Ovary 

 usually I- celled ; placentas parietal (except in Exacum). Leaves without a con- 

 necting line or stipules. 



