Classification of Plants 205 



Group 3. — Iiuoiiiph-tii:. 



A. Perianth present ; flowers perfect or im- 

 perfect. 

 B. Ovary superior. 



Flowers regular. Periantii tubular, its 



lobes imbricate in bud. Shrubs . Thymelhace.t;. 



Perianth more or less irregular, 4-cleft or 

 4-parted, valvate in bud ; trees or 

 shrubs ...... Pkoteack.'E. 



BB. Ovary inferior. 



Perianth 4-S-parted ; fruit a berry; 



parasites on trees .... Lor.wthace.e. 



Perianth 3-parted, becoming woody; 

 root parasites ..... Hydnorace.e. 



A.\. Perianth absent ; sometimes u-ith sepals, 

 flowers imperfect. 

 Fruit a 3-celled schizocarp ; plants 

 usualh' milky ; herbs, shrubs or 

 trees ....... Euphorbiace.i;. 



Fruit usuall)' i-celled; staminate 



flowers in Catkins ; trees . . . .-Vmentace.e. 



Cl--\ss II. — ^Monocotyledons. 

 Group i. — Pctaloida:. 



A. Ovary inferior. 



Stamens i, joined to the st\le ; ovary i- 



celled ....... Orchidace.e. 



Stamens 3 ; o\'ar}' 3-celled .... Iride.e. 



,, 5; ,, ,, .... Musace.c 



,, 6; ,, ,, .... Amaryllidace.e. 



A-\. Ovarv superior. 



B, Flowers perfect. 



Perianth coloured ; stamens 6 . . Liliace.e. 



Cah-x green ; corolla coloured ; anthers 



differently formed .... Com.melvnace.^s. 



Perianth coloured ; ovary inferior or su- 

 perior, stamens 3-6 .... H.T^MODOR KCE.^. 



BB. Flowers imperfect. 



Flo\\'ers dioecious. Perianth of 6, rarel}' 



4 glumes Restiace.e. 



Group 2. — Ghinmccis . 



Stem solid ; sheath of leaf not split, 

 without a ligule .... Cvperace.e. 



