276 PHARMACEUTICAL BOTANY 
12 13 a 
Fic. 194.—The Stamen System. 1, Stamen of Hepatica showing adnate 
anther, the 2 lobes separated by connective; 2, diadelphous stamens of a leguminous 
plant; 3, polyadelphous stamens of Orange with calyx at base; 4, flower of Teucrium 
showing didynamous stamens; 5, monadelphous stamens of Malva; 6, tetradyna- 
mous stamens of a Crucifer; 7, flower of Hypericum cut vertically to show triadelphous 
stamens; 8, androecium and gyneecium of Aristolochia showing gynandrous stamens; 
9, stamen of a Labiate showing branched connective with one anther-sac aborted 
and absent; 10, adnate anther of Campanula; 11, stamen of Malva with confluent 
anther, which is 1-celled; 12, stamen of Lily with versatile anther; 13, stamen of 
False Rue Anemone with innate anther; 14, stamens of Sunflower showing syngene- 
sious anthers. 
: TRIADELPHOUS, with filaments united into three sets. Exam- 
ple: St. John’s Wort. [Fig. 194 (7).] 
