Classification of Plants 205 



Group 3. — Incompletce. 



A. Perianth present ; flowers perfect or im- 

 perfect. 

 B. Ovary superior. 



Flowers regular. Perianth tubular, its 



lobes imbricate in bud. Shrubs . Thymeleace^. 



Perianth more or less irregular, 4-cleft or 

 4-parted, valvate in bud ; trees or 



shrubs Proteace^. 



BB. Ovary inferior. 



Perianth 4-8-parted ; fruit a berry ; 



parasites on trees .... Loranthace^. 

 Perianth 3-parted, becoming woody ; 



root parasites Hydnorace^. 



AA. Perianth absent ; sometimes with sepals, 

 flowers imperfect. 

 Fruit a 3-celled schizocarp ; plants 

 usually milky ; herbs, shrubs or 

 trees ....... Euphorbiace.e. 



Fruit usually i-celled; staminate 



flowers in Catkins ; trees . . . Amentace^. 



Class II. — Monocotyledons. 



Group i. — Petaloidce. 



A. Ovary inferior. 



Stamens i, joined to the style ; ovary i- 



celled Orchidace^. 



Stamens 3 ; ovary 3-celled .... Iride.^. 

 ,, 5; „ ,, . . • • MUSACE^. 



„ 6; ,, ,, .... Amaryllidace^. 



AA. Ovary superior. 



B. Flowers perfect. 



Perianth coloured ; stamens 6 . . Liliace^. 

 Calyx green ; corolla coloured ; anthers 



difterently formed .... Commelynace/e. 

 Perianth coloured ; ovary inferior or su- 

 perior, stamens 3-6 . . . . H^modorace^. 

 BB. Flowers imperfect. 



Flowers dioecious. Perianth of 6, rarely 



4 glumes Restiace^. 



Group 2. — Glumacece. 



Stem solid ; sheath of leaf not split, 

 without a Hgule .... Cyperace^. 



