1923] PALMER, THE RED RIVER FOREST AT FULTON, ARKANSAS 23 



HAMAMELIDACEAE 



Hamamelis macrophylla Pursh. Growing along the banks of small 

 sandy streams where it becomes a small tree or more frequently a tall 

 shrub five or six meters in height. 



Liqaidambar Styraciflua L. One of the largest and commonest of forest 

 trees in the region, sometimes attaining a height of from 30 to 40 meters. 

 It appears to be very adaptable, growing in all sorts of soils and environ- 

 ments from the dry ridges to permanent swamps. In the lowlands and 

 flat upland woods it is often an important constituent of the forest. 



PLATANACEAE 



Platanus occidentalis L. Growing sometimes to a large size on the banks 

 of rivers and smaller streams, but nowhere very common. 



ROSACEAE 



Malus ioensis var. Palmeri Rehd. A spiny shrub or small tree in thickets 

 and openings along the margins of the uplands. 



Rubus Andrew sianns Blanchard. Common in openings of low woods, 

 in upland thickets and along the margins of swamps and bogs. 



Rubus trivialis Michx. Thickets and open woods. 



Rubus rubrisetus Rydb. Common in low open woods, especially on 

 banks and margins of swamps and bayous. 



Rosa setigera Michx. The smooth form of the Prairie Rose is found in 

 thickets and open woods, in rather dry situations. 



Rosa setigera var. tomentosa T. & G. This form, differing in the pu- 

 bescence of the leaves and young branches, is sometimes found in similar 

 situations to the last. 



Rosa Carolina L. This low growing Rose is often found in open sandy 

 woods and in upland thickets. It is the species that long passed under 

 the name of Rosa humilis Marsh. 



Rosa texarkana Rydb. I have not recognized this species in the Fulton 

 area but as the type was collected by Eggert at Texarkana, only a few 

 kilometers beyond our limits, it is doubtless to be looked for here. 



Crataegus apiifolia Michx. A very common species growing in thickets 

 and open woods both in the lowlands and in the dryest situations. 



Crataegus spatJudata Michx. About as abundant as the last named 

 species and growing in similar situations. 



Crataegus trianthophora Sarg. A low shrubby form of wide distribution 



that has been found in open sandy woods. 



Crataegus bellica Sarg. The type of this species was collected ncvir 

 Fulton, where it is common in thickets along the escarpment and in 

 openings of upland woods. It has since been recognized at other stations 

 in eastern Arkansas, Texas, Oklahoma and southern Missouri. It is a 

 shrub with remarkably spiny, intricate, zig-zag branches. 



Crataegus Bushil Sarg. A small tree, belonging like the last to the 

 Crus-galli group. The type locality was Fulton. It is now known also 

 from several stations in western Louisiana, eastern Texas and Oklahoma. 



