75 



1941. E. Peplus, L. (Horned Garden Spurge.) 



Introduced. Border of field, Green's Creek. Parliament Hill. 

 Aug. 2. Annual. Horns of the 4-lobed involucruni long. 

 Lobes of the pod 2-wing-crested on the back. 

 ACALYPHA, L. Three-seeded Mercury. 



1945. A. Virgimca, L. 



Low ground in shade. July 4. (B) An inconspicuous weedy 

 plant with green flowers and long-petioled leaves. 



URTICACE.M Nettle Family. 

 ULMUS, L. Rim. 



1946. U. fulva, Mx. (Red Elm. Slippery Elm.) 



Rocky woods. Ap. 4. (B) Flowers almost sessile. Branches 

 wide-spreading, with the leaves towards the tips of the branch- 

 lets. Buds and branchlets downy. 



1947. U. Americana, L. (White Elm. Swamp Elm.) 



Low woods. Ap. 4. (B) Our most beautiful forest tree. 

 Flowers on drooping pedicels. Buds and branchlets glabrous. 



1948. U. racemosa, Thomas. (Rock Elm. Corky White Elm.) 

 Rocky woods. May 1. (B) A small tree in this district; 



but very large in Western Ontario. Easily distinguished by the 

 corky ridges on the branches and the racemed flowers. 

 These three are the only elms we have in Canada, notwithstanding 

 the various local names. 

 CELTIS, L. Nettle Tiee. 



1949. C. occidentalis, L. (Sugar-berry. Hackberry.) 



River banks. Rare. Billings Bridge. Malloch's Bay. Bri- 

 tannia. May 1. 



A rather small forest tree with the appearance of an Elm. Leaves 

 sharply serrate, reticulated, ovate-lanceolate taper-pointed oblique 

 at base and asymmetrical. Flowers green, axillary, peduncled. 

 The fertile flowers solitary or in pairs ; the stamiuate flowers 

 fascicled along the base of the branchlets. 

 HUMULUS, L. Hop. 



1950. H. Lupulus, L. Wild Hop. 



Not indigenous in this locality. River side. Hull. Billings 

 Bridge June 4. 



