THE ANDKCECrUM. 55 



The irregular multiple aposteinonous androecium may be composed either 

 of such unequal stamens as follow no definite rule, or of those arranged 

 in a definite manner. In the latter case there are two important varieties : 

 in one kind there are six stamens of which four are longer than the re- 

 maining two, as in the Kabura (Fig. 61) and Daikon ; and in the other 

 there are four stamens of which two are long and two short, as in the 

 Odorikoso and Sagigoke (Mazus rugosus, var. macranthus) (Fig. 93). The 

 androecium of the former sort is said to be Tetradynamous, and that of the 

 latter Didynamous. 



The synstemonous androecium may be composed either 

 of those stamens which are united into one body by means 

 of their anthers or their filaments, as in the Tampopo 

 (Fig. 58) and Mukuge ; or of those which are united into 

 two or more bodies by their filaments, as in the Fuji (Fig. 

 62) and Otogiriso (Hypericum erectum) . The synstemonous 

 androecium of the former kind is said to be Complete, and 

 that of the latter Incomplete. 



( Complete Synstemonous Andrcecium. 



STNSTEBIONODS ANDRCECIttMl T . , " , , . 



( Incomplete eynstemonous Androecium. 



A complete synstemonous androecium consisting of stamens which are 

 united into one body by means of their anthers, as in the Tampopo (Fig. 

 58) and Shion, is said to be Syngenesiotis ; and that composed of stamen 

 which are united into one body by their filaments, as in the Mukuge and 

 Zeniaoi, is said to be Monadelphous. 



An incomplete synstemonous androecium consisting of stamens which 

 are united into two separate bundles, as in the Fuji (Fig. 62) and Tends, 

 is said to be Diadelphous ; that composed of stamens in three bundles, as in 

 the Otogiriso and Midzuotogiri (Hypericum virginicum), is said to be 

 Triadelphous ; and that consisting of stamens in four or more bundles, as in 

 the Tomoyeso (Hypericum Ascyron) and Kinshibai (H. patulum), is said to 

 be Polyadelphous. 



All the kinds of androecium are represented in the follow- 

 ing table. 



