4 



OF EUBTACEiE IX TROPICAL AFRICA. 253 



colled in Lasianthus, The number of lobes or teeth of the style 

 or stigma usually agrees with the number of cells, whether com- 

 plete or incomplete, in the ovary. The style is usually of mode- 

 rate lengthjthat is, about as along as the corolla or shortly exserted ; 

 and the upper or stigmatic portion is usually oblong, fusiform, 

 linear, clavate, or often subcapitate. There, are, however, globose, 

 mitriform,or calyptriform stigmas in Cantliium^Vangueria^ Fadogia^ 

 Cuvi€ra,audAnci/lani7ios, and they are much dilated in Macrosphyra 

 and in one doubtful species of OxyantJius ; and the style is far 

 exserted in Tarenna^ Macrosphyra^ and Pavetta. 



The ovules are numerous or several (2 or more) in each cell of 

 the ovary throughout the first great series of the Order, comprising 

 half the number of our genera, while in the other series, compri- 

 sing the remaining half of the genera, the ovules are always soli- 

 tary. Their insertion varies considerably in different genera, and 

 is important for the purposes of classification. They are pendulous 

 in the genera Adina, Zygoon, Galiniera, and Guettarda, and in the 

 tribes Alberte^ and Vangueriese. They are ascending in the 

 genera Uncaria, Hymenodictyon^ Corynanthe, and HeJcistocarpa^ 

 and in the tribe G-alie^, while they are erect in the genera 

 Morinda, Sijpliovieris, and Anthospermum^ as well as in tlie tribe 

 Psychotrie^. They are peltately attached in the genera Crosso- 

 pteryx, Dictyandra, Leptactina, Tarenna^ and Mitracarpum, as well 

 as in nearly the whole of the tribe Ixorese. The ovules are ana- 

 tropous in most of the genera, but are amphitropous in the tribes 

 Ixorese (except Morinda) and Spermacoceae and in the genus 

 Ruhia. 



The placentas are fleshy in several genera of the tribes Mus- 

 saendese and Gardenie^, and the ovules are immersed in or im- 

 pressed on them in Bandia, Amaralia, &c. The disk at the top 

 of the ovary is not usually important in its characters ; it varies 

 from the form of an elevated hemisphere, sometimes lobed, to a 

 mere ring, which is sometimes almost obsolete ; in Virecta multi- 

 flora the disk consists of two narrow cones. 



4. Differences in the Fruit. 

 Corresponding with numerous, several, or solitary ovules in the 

 ovary, so the fruit has numerous, several, few, or solitary seeds ; 

 the number of seeds, however, is often far fewer than that of the 

 ovules, and occasionally, as, for instance, in OxyantJius macrophyU 

 lus, we find solitary seeds to result in the fruit after numerous 



