42 
IOWA ACADEMY OF SCIENCES. 
The following species were found in the Pine Flats: 
PiNus PALUSTRis Mill. Lofig leaf Pine. 
P. TiEDA Linn. Loblolly Pine. In old fields and clearings 
and on edge of Longleaf area where it adjoins the swamp 
type. Sometimes the Pine Flats and swamps are separ- 
ated by a third, or intermediate type, containing Longleaf, 
Loblolly, and hardwoods. Loblolly occurs rarely in the 
typical Longleaf country. 
P. EOHiNATA Mill. Shortleaf Pine. Sometimes found in 
old clearings in drier portion of Pine Flats. 
Liquidambar styraciflua Linn. Sweet Gum. Along bord- 
ers of streams and near edges of swamps. 
Magnolia fcetida (L.) Sarg. Rare along streams. 
M. GLAUCA Linn. Sweet Bay. Along streams and edges of 
swamps. 
JuNiPERUS COMMUNIS Linn. Bed Cedar. Not uncommon 
in deserted clearings. 
Acer negundo Linn. Box Elder. Banks of streams. 
Rare. 
Morella cerifera (L.) Small! Wax Myrtle. Common. 
Ranunculus tener Mohr. Buttercup. Not uncommon. 
Viola lanoeolata Linn. White Violet. Not uncom- 
mon. 
Viola langloisii Greene. Violet. Common. 
Cassia OHAM^CRisTA Linn. Partridge Pea. Not un- 
common. 
SiSYRiNCHiuM GRAMiNoiDES Bicknell. Blue-eyed Grass. 
Not uncommon. 
S. MINUS Engelm. & Gray. Not common. 
Xanthium spinosum Linn. Cocklehur. Common in 
cotton fields and on roadsides. 
Aster Texanus Burgess. Aster. 
A. PURPURATUS Nees. 
Sassafras sassafras (L.) Karst. Along streams. 
Malus soulaidi (Bailey.) Britton. Crab. In open 
places in pine woods, where it forms thickets. 
Elionurus tripsacoides H. & B. Common. 
