SINGULAR STRUCTURES. 



35 



ris and Asarum, and adhere to the stigma without filaments in 

 Aristolochia. 



The singularities of the Nectarium have been already men- 

 tioned in Chap. XII. 



The Pistil is commonly placed within the anthers : but in the 

 Arum there is this singularity, that the receptacle runs out into 

 a club> the base of which is occupied by the pistilla, and the up- 

 per part by the stamina; so that here the pistilla stand on the 

 outside of and surround the stamina; and in the Ethiopian 

 Calla these parts are disposed in the same manner. The Rumex 

 is singular in the insertion of its stamina. 



The Style is commonly placed on the top of the germen. 

 Some exceptions to this have been given in Chap. XIV. to these 

 may be added Passerina, Gnidia, Struthia, and Stellaria. 



The Pericarp is generally shut; but in Reseda and Datisca 

 it is always open : in Parnassia it gapes at the time of flowering, 

 and closes afterwards. 



That the pericarpiaare ever found one within another, the great- 

 er containing the smaller ones, Linnccus refuses to admit ; for 

 although there is the appearance of such a singularity in Mag- 

 nolia, Uvaria, and Michelia, he thinks the outer pericarp is 

 in such cases to be looked upon only as a common receptacle. 



Where the pericarp is a berry, it is distinguishable into proper 

 berries, those which are formed of the pericarp ;... and improper or 

 singular, such as are formed of any of the other parts. 



The berry is improper or singular in the following instances, 

 viz. When it i$ a calyx, as inBLiTUM, Morus, Basella, Ephe- 

 dra, Coix, Rosa and CoRiARiA;...a receptacle, as in Taxus, Rhi- 

 zophora, Anacardium, Ochna, Laurus, Ficus, Dorstenia, and 

 Frag aria ; ...a seed, as in Rubus, Magnolia, Uvaria, Miche- 

 lia, Prasium, Uvularia, Panax, Adonis, Crambe, and Osteo- 

 spermum ;...an Arillus, as in Euonymus and Celastrls ;...a 

 nectarium, as in Mirabilis ;... a corolla, as in Adoxa, Poterium, 

 and Coriaria ;...a capsule, as in Euonymus, Andros^mum, Cu- 

 cubalus, and Epidendrum ;...a dry berry, as in Linn^a, Gali- 

 um, &c. Tetragonia, Myrica, Trientalis, Tropteolum, Xan* 



, " D 2 



