12 WOODY PLANTS OF MANHATTAN 



buds naked, rusty pubescent. Very common in woods, along fences, and 

 stone walls. 



R. CANADENSIS, Marsh Arb. 1785. Canada Sumac. 



A small shrub with white pith, brown twigs finely pubescent above, 

 glabrescent below, five or eight-ranked, circular leaf-scars raised on a 

 broad base, with several scattered bundle-scars. Pubescent buds naked, 

 entirely hidden by the over-arching leaf-scar. The next year's catkins 

 conspicuous. Infrequent on rocky hills. 



18 AMORPHA, L. Gen. 1737; Spec. 1753. 



Twigs pubescent A. canescens. 



Twigs glabrous A. fruticosa. 



A. CANESCENS, Nutt. in Eraser's Cat. 1813. Lead plant. 



A low shrub one or two feat high or occasionally as much as four feet. 

 Twigs light brown or ashy, ghibresceiit below, pubescent above. The 

 small leaf-scars eight-ranked, with three bundle-scars usually coalescent, 

 and minute or obsolete stipule-scars. Buds single, flattened and closely 

 appressed. Just above the bud there is a protuberance of the bark. Scales 

 about four, brown, glabrescent. Commun on prairie and in upland 

 woods. % 



A. FRUTICOSA, L. Spv j c. 1753. False Indigo. 



A shrub with gray, glabrous, sulcate twigs which die back at the 

 summit, semi-oval, five-ranked leaf-scars, three closely aggregated bun- 

 dle-scars, small stipules, usually persistent at the angles of the leaf-scars. 

 Buds two superposed, the upper closely appressed; scales four or five, 

 dark-brown, glabrous. Common in moist places. 



19 ROBINIA, L. Gen. 1737; Spec. 1753. 



R. PSEUDO- ACACIA, L. Spec. 1753. Black Locust. 



Twigs light brown, glabrous, somewhat ridged. Leaf-scars triangu- 

 lar three-lobed, raised in the centre; bundle-scars three; stipular spines 

 present or obsolete. Buds entirely hidden by leaf-scars, the cavity 

 beneath lined with dense ferruginous pubescence. Introduced as a shade 

 tree and escaped in places. 



20 CERCIS, L. Gen. 1737: Spec. 1753. 



C. CANADENSIS, L. Spec. 1753. R-d bud. 



A small tree with twisted and scaly bark; dark red-brown, glabrous, 

 shining, slightly ridged twigs, two-ranked, triangular three-lobed leaf, 

 scars, three bundle-scars find stipule-scars or persistent stipules adjacent 

 above the leaf-scar. Terminal buds none; lateral small, flattened, 

 appressed, two or three superposed. Flower buds larger, oval, spread- 

 ing. Scales two or three. Common. 



