Page:An introduction to physiological and systematical botany (1st edition).djvu/503

 Rh I proceed to give some illustrations of the Orders in Monoecia.

1. Monandria. Zannichellia, ''Mill. Illustr. t. 77, and Aegopricon, Plant. Ic. ex Herb. Linn. t.'' 42, are genuine examples of this Class and Order, having a different structure in the accessory parts of their barren and fertile flowers. Artocarpus, the celebrated Bread-fruit, may likewise be esteemed so on account of a partial calyx in the barren flowers. The other amentaceous genera may most intelligibly perhaps be referred to the Order Polyandria. Chara is now removed to the first Class in the System; see ''Engl. Bot. t.'' 336.

2. Diandria. Anguria can remain here only till the proposed reformation takes place, having no difference of structure in its flowers. Lemna, so imperfectly known when Linnæus wrote, is now well understood, and, having frequently united flowers, belongs to the second Class; see ''Engl. Bot. t.'' 926, 1095, 1233.