TREES AND SHRUBS 



Flowers greenish, unisexual, monoecious ; Males in a pendulous catkin 5-6 

 ins. long; Female catkins 10-12 ins. long, sometimes as much as 20 ins.; 

 Fruit drupaceous, dry, angled, 2-winged, much tapered at tip, seldom ripening 

 in this country. 



Leaves alternate, imparipinnate, leaflets about 19, ovate-oblong, acuminate, 

 acutely serrate, glabrous, sessile, bright green above, paler or glaucous beneath, 

 12-18 ins. long, sometimes more than 2 ft., width 18 ins. 



A deciduous tree, 20-50 ft. ; Branches widely spreading ; Trunk with large 

 excrescences ; Roots extending to great distance ; Suckers abundant when near 

 water ; Wood used for veneering and cabinet-making. 



Introduced from the Caucasus about 1800. Generic name from Gr. pteron, 

 a wing, and caryon, a nut, referring to winged fruit. Syn. P. fraxinifoUa. 

 Specific name from L. Fraxinus, the Ash, and j'olius, a leaf, from resemblance 

 of foliage. 



Class I Dicotyledons 



Division IV Incompletce 



Natural Okdek . . . Myricacece 



Trees or shrubs, with alternate, usually exstipulate, resinous leaves ; Fhxcers 

 in catkins or catkin-like spikes, monoecious or dioecious; Male Jloivers of 2-16 

 stamens, inserted on base of a bract, sometimes Avith 2 lateral bracteoles ; anthers 

 basifixed, extrorse ; Females, Ova?-i/ 1-celled, sessile at base of the bract, usually 

 2-4 bracteoles ; Fruit drupaceous. 



BOG MYRTLE, Mijrica Gale. 



Bogs and wet moors, gardens. May — July. Thrives well in moist peaty 



soil in shaded parts of the rockery or border. Propagated by cuttings in sandy 



soil in sheltered position outdoors, vSeptember or October ; layers of shoots, 



September or October ; division of plants, October to INIarcli ; seeds sown as 



soon as ripe in ordinary soil in sheltered position outdoors, 



148 



