LliO IMON CANADIAN WILD PLANTS. 



spikes or racemes. Si Style only 



1. Ovary 1-celled. Fruit an achene. 



4. Urti'ca. Leaves opposite. Plant beset with st.inging hairs. Sepals ' in 

 both sterile and fertile {lowers. Stamens 4. Stigma a small sessile tuft. 

 Achene flat, enclosed between the 2 larger sepals. Flowers urccni.sh. 



fi. L-aport'ea. Lenr.'s <//t<'nntft>. Plant beset with stinging hairs. - 



in the sterile flowers, 4 in the fertile, 2 of them much smaller than the 

 other 2. Stigma awl-shaped. Achene flat, very oblique, refit-red 

 winged pedicel. 



(5. Pil'ea. Leaves opposite. Whole plant very smooth arii 

 Sepals and stamens 3-4. SUgma a sessile tuft. 



7. Bcelime'ria. Leaves mostly opposite. No stinging hairs. Sepals and 



stamens 4 in the sterile flowers. Calyx tubular or urn-shaped in the 

 fertile ones, and enclosing the achene. Stigma loner arid thivad-like. 



8. Parieta'ria. Leaves alternate, entire, 3- ribbed. No stinging hairs. 



Flowers polygamous, in involucrate-braeted cymose axillary clusters. 

 Calyx of the pistillate flowers tubular or bell-shaped, 4-lobcd. Stigma 

 tufted. Staminate flowers nearly as in the last. 



SUBORDER IV. CANNABIN'E^E. (HEMP FAMILY.) 



Rough herbs with watery juice and tough bark. Leaves oppo- 

 site and palmateJy compound. Flowers dioecious. Sterile ones 

 in compound racemes ; stamens 5 ; sepals 5. Fertile ones in 

 crowded clusters ; sepal only 1 , embracing the achene. Stigmas 2. 



9. Can'nabis. A rather tall rough plant with palmately compound leaves 



of 5-7 linear-lanceolate serrate leaflets. 



1. ULMUS, L. ELM. 



1. U. fulva, Michx. (RE"> or SLIPPERY ELM.) Flowers nearly 

 sessile. Lr.<- rough ttbore, taper-pointed. Jlml* </f'-n>/ 

 with rusty hair*. A medium-sized tree, with mucilaginous inner 

 bark. 



2. U. America'na, L. (AMERICAN or WHITE ELM.) Lcnn-* 



i/h c'horc, <i/>r><jif./i/ poi/ifed. Flowers 0:1 drooping pedicels. 

 />////.s y'lihro/;.-.. A large ornamental tree, with drooping < 

 lets. Moist woods. 



3. U. racemo'sa, Thomas. (CORKY WHITK KLM.) I 

 bling the last, but tlio lm<l-Hc<tl<-x are '/<>n-,,,/-,-;/ttifc, lJt<> In-ftm-In-* 

 CQrJsy, ii<l. f-hr. //n?/v/v /"r^ni'd. Chiefly along roadsides and 

 borders of fields. 



