TILIACBM. 



175 



Corchorus olitorius. 



interval between the insertion of the corolla and that of the andro- 



ceum is generally pretty considerable. This singular form of the 



receptacle, causing the insertion of the stamens to be separated from 



that of the petals by a kind of internode with 



summit more or less dilated and often covered by a 



glandular disc, is particularly noticeable in Grewia 



(figs. 195, 196), and it is for this reason that this 



genus has been made the type of a series which it 



is impossible for us to preserve as distinct after 



what we have just seen in Corchorus. It is only 



artificially that we can make a subseries Grewiece. 



Grewia has a drupaceous indehiscent fruit, entire or 



more or less deeply lobed. In Desplatsia and 



Duboscia it is also indehiscent, but suberose- 



ligneous, ovoid, and with four or five cells in the 



former, almost globular, with prominent ribs, and 



more numerous cells (from eight to ten) in the 



latter. In Columbia the fruit is dry and provided 



with from three to five vertical wings. Sometimes 



it is completely indehiscent, its wings remaining 



intact ; sometimes, on the contrary, it is divided 



into two indehiscent shells, so that each of the 



wings cloven in two through its thickness leaves one of its halves 



upon each edge of the carpels. In IVic/ios/jermum, which derives its 



Fig. 194. 



Dehiscent fruit (±). 



Grewia paniculata. 



Fig. 195. 

 Flower. 



Fig. 196. 

 Longitudinal section of flower. 



name from the hairs with which the seeds are covered, the fruit is 

 dry, smooth, but capsular, two-celled and loculicidal, wider than it is 

 long, and compressed perpendicularly to the partition. The pericarp 

 remains dry in Erinocarpus and Triumfeffa, but its exterior is covered 



