1923] PALMER, THE RED RIVER FOREST AT FULTON, ARKANSAS 27 



Acer rubrum L. Common in low woods and less frequent in the uplands 

 of the sand hills section. 



Acer rubrum var. tridens Wood. On bluffs and ridges in the sand hills 

 section. 



Acer rubrum var. Drummondii (H. & A.) Sarg. Common in swampy 

 woods and bogs. 



Acer Negundo L. Common in low woods and along streams. 



Acer Negundo var. texanum Pax. Growing in similar situations to the 

 last and somewhat more common. 



Acer Negundo var. texanum f. latifolium Sarg. This is a common form, 

 growing with the last. 



HIPPOCASTANACEAE 



Aesculus glabra var. leucodermis Sarg. Usually a shrub two or three 

 meters in height; it is found on hillsides and along small streams in the 

 Cretaceous area. 



Aesculus glabra var. micrantha Sarg. A low shrub, of which the type was 

 collected in this vicinity. 



Aesculus discolor var. mollis Sarg. This red-flowered species is often 

 abundant on hillsides and along small streams in the sand hills. 



X Aesculus Bushii Schneid. A supposed hybrid between Ae. glabra var. 

 leucodermis and Ae. discolor var. mollis, of which the type specimens were 

 collected by B. F. Bush, near McNab. 



SAPINDACEAE 



Sapindus Drummondii H. & A. Rather rare in low woods and on 

 gravelly ridges. 



RHAMNACEAE 



Rhamnus caroliniana Walt. Often abundant in thickets and on gravelly 

 ridges, and sometimes also found in low woods. 



Ceanothus americanus L. A low shrub of sandy woods and thickets. 



Berchemia scandens (Hill) Trel. Common in thickets, barrens and along 

 the borders of upland woods. 



VITACEAE 



Vitis cinerca Engelm. Often common in low woods and thickets. 



Vitis cordifolia Michx. Rather common in low woods and also found 

 in thickets and along small streams in the uplands. 



Vitis palmata Vahl. Grows along the margins of sandy bogs and on 

 banks of small streams. 



Vitis Linsecomii var. glauca Munson. A species found in sandy upland 



woods and on the banks of small streams. 



Ampelopsis cordata Michx. Growing in thickets and along small 

 streams. 



Ampelopsis arbor ea (L.) Koehne. Common in thickets and in open 

 situations both in the lowland and upland woods. 



