10 WOODY PLANTS OF MANHATTAN 



The pith is homogeneous, except at the nodes, where there is a woody 

 cross partition. 



Twigs cylindrical, glabrous. 



1'artition \ to 1 mm. wide V. riparia. 



Partition about H- mm. wide V. cordifolia. 



Twigs angled, cottony V. cinerea. 



V. CINEREA, (Engelm.) Engelrn. Bushberg Cat. 1883, V. acstivalis, 

 var. cinerea, Engeirn. in Gray, Man. Ed. 5, 1868. Downy Grape. 

 Common along the Blue and lowlands of the Kansas rivers. 



V. CORDIFOLIA, Michx. Fl. 1803. Frost Grape. 



Rare along Kansas river from Manhatttan to St. George. 



V. RIPARIA, Michx. Fl. 1803. Summer Grape. 



Common. 



11 CISSUS, L. Fl. Zeyl. 1747; Spec. 1753. 



C. AMPELOPSIS, Peis. Syn. i, 1805. Cissus. 



A vine climbing by once or twice forked tendrils, placed opposite the 

 leaf-scars, with white pith becoming diaphragmed in the older canes, no 

 partitions at the nodes, light gray-brown, glabrous, somewhat angled 

 twigs, irregularly circular, two-ranked, raised leaf-scars and low buds, 

 surrounded by the ruptured epidermis, with one scale almost enclosing 

 the bud. Frequent. 



12 AMPELOPSIS, Michx. Fl. 1803. 



A. QUINQUJEFOLIA, Micbx. 1. c. Virginia Creeper. 



A vine climbing by irregularly branching tendrils opposite the leaf- 

 scars and also aerial rootlets on the older parts. Twigs brownish gray to 

 light buffi, rather sparsely hirsute or glabrescent, leaf-scars cylindrical, 

 concave, two-ranked, with several bundle-scars in an irregular circle; 

 stipule-scars conspicuous, curved downward; buds low and rounded, with 

 few glabrous or slightly rusty scales. Common. 



13 JBSCULUS, L. Syst. 1740; Spec. 1753. 



M. ARGUTA, Buckley, Proc. Am. Acad. 1860. Buckeye. 



A shrub or low tree with white pith, which quickly cracks leaving 

 radiating cavities; large buff or reddish brown, glabrous or minutely 

 pubescent twigs; large heart shaped, opposite leaf-scars, with three areas 

 of bundle- scars; and large lanceolate, acute terminal buds, with numer- 

 ous, acute, striate, often glaucous scales. The terminal bud is sometimes 

 absent, when the upper pair of lateral buds are much larger than usual. 

 Frequent. 



14 SAPINDUS, Tourn. Inst. 1700; L. Spec. 1753. 



S. MARGINATUS, Willd. Enum 1809 Soap berry. 



A small tree with white pith, light gray twigs, glabrescent below, 



pubescent above, ami frequently ridged; five-r inked, heart-shaped leaf- 



