198 COMMON CANADIAN WILD PLANTS. 



a large leaf-like 5-9-lobed tract. Stamens 8-16, monadel- 

 phous at the base, the anther-oells hanging from the apex 

 of the filament. Styles 3, the stigmas out-fringed, usually 

 red. Pod separating into 3 globular carpels. A nettle-like 

 weed, with ovate, sparsely se2Tate, alternate, long-petioled 

 leaves. — Fields and open places. 



Order LXXXIV. URTICA'CE-ffi. (Nettle F.) 



Herbs, shrubs, or trees, with monoecious or ditEcious (or, 

 in the Elms, sometimes perfect) flowers, with a regular calyx 

 free from the 1-2-celled ovary which becomes a, 1-seeded 

 fruit. Stamens opposite the lobes of the calyx. This Order 

 is divided into four well-marked Suborders. 



Suborder I. ULMA'CE^. (Elm Family.) 



Trees, with alternate simple leaves, and deciduous small 

 stipules. Flowers often perfect. Styles 2. Fruit a samara 

 winged all round, or'a drupe. 



* Fruit a samara ; anthers extrorse. 



1. ITImus. Flowers In lateral clusters, earlier than the leaves, purplish 



or greenish-yellow. Calyx bell-ahaped, 4-cleft. Stamens 4-9; 

 the filaments long and slender. Ovary 2-celled, hut the samara 

 only 1-seeded. Stigmas 2. 



* * Fruit a drupe ; anthers introrse. 



2. Celtls. Flowers greenish, polygamous, the pistillate solitary or in 



pairs, appearing with the leaves. Calyx 5-6-parted, persistent. 

 Stamens 5-6. Stigmas 2, long and pointed and recurved. Ovary 

 1-ovuled. 



SuboedbrII. ARTOCAR'PE^a;. (Bread-fruit and Fig F.) 



Flowers monoecious or dioecious, crowded in catkin-like 

 spikes or heads the whole pistillate catkin becoming an 

 aggregate fruit from the enlargement of the calyx in the 

 several flowers. Calyx 4-parted. Stamens 4. Ovary 2-oelled, 

 1 cell eventually disappearing. Styles 2. 



8. Horus. Pistillate and stamlnate flowers in separate catkins. Trees 

 with milky juice and rounded leaves. Stamln&t« spikes slender.. 



