Trees. Shrubs and Vines 



36. Large-flowered Syringa. 1 Phi'.idelphus inodorus, var. 



grand: floras.) 



LE.A.F : ^-4', as in 35, but somewhat hair)-. Flower: as in 

 35. but larger, and caI\-x-lobes longer and tapering. Virginia ; 

 cultivated. 



37. Rough-leaved Dogwood. (Comus asperifolia.) 



Leaf: 2-4', simple, opposite, entire, ovate, apex pointed, 

 quiU raugk atjze, dowTiy beneath, branchlets rough. Flower : 

 p., white, small (petals 4), in broad flat clusters; May, June. 

 Illinois, dr\- soil. 



38. Stiff Cornel. (Comus stricta,) 

 Leaf: 2-4, simple, opposite, entire, ovate or long-ovate, 

 apex quite tapering, base pointed, smooth. FLO^^•ER : p., white, 

 small (petals 4), in loose flat clusters. Virginia, swamps ; S°-i5° 



high. 



39, Dwarf Thorn. (Crataegus parvifolia.) 



Leaf : >^ -i>2 , simple, aitemate, round-toothed, obovate with 

 long, narrow base, thick, glossy above when mature. Flower : 

 p., white, 1-3-clustered ; May ; fruit yellowish. New Jersey and 

 south ; 3'-6' high ; thorny. (PI. IIL) 



40. Sloe. Black Thorn. (Prunus spinosa.) 

 Leaf : 1-3, simple, aitemate, serrate, long-ovate or elliptical. 

 Flower: p., white (petals 5, stamens rather numerous), few- 

 clustered, before or with leaves ; fmit small, black, \*-itha bloom. 

 Maine to Pennsylvania ; thorny. 



41. White Thorn. (Crataegus spathulau.) 

 Le.af : 2-3', simple, aitemate, rcund-toot Jud to^Oixd apex, oc- 

 casionally lobed, long-obovate, base tapering, thickish, glossy. 

 Flo\\t.r : p.. white, in large clusters; May; fmit red, Vir- 

 ginia; io"-i = '' high ; thorny. 



42. White Thorn, (Crataegus apiifolia.) 



Leaf : 2-3', simple, alternate, serrate, i---deepl}-\o\>^<i, 

 roundish. Flov-tr : as in 41: March. April Virginia ; thorny, 



260 



