134 MISSISSIPPI STATE GEOLOGICAL SURVEY [Bull. 
Ulmus fulva Michx. (U. pubescens Walt.) Slippery Elm. 
Low rich bottom lands. Lafayette Co.; Chickasaw Co.; 
Tippah Co.; Hinds Co.; Warren Co. February. 
Geol. Survey Herb. 
PLANERA Gmel. The Planer-Tree, or Water Beech. 
Planera acquatica ( Walt.) Gmel. (Anonymos acquatica Walt.) 
On low wet flood plains of the larger streams. Taylor. 
February. 
Geol. Survey Herb. 
CELTIS L. 
Celtis Mississippiensis Bose. (C. laevigata Walt.) Southern 
Hackberry. 
Prairies and river bottoms. Tishomingo Co.; Benton Co.; 
Chickaksaw Co.; Noxubee Co.; Warren Co.; Clarke Co.; 
northern Hinds Co. 
Geol. Survey Herb. 
Celtis occidentalis L. Hackberry. 
Starkville (Tracy). 
MORACEAE. Mulberry Family. 
TOXYLON Raf. 
Toxylon pomiferum Raf. (Maclura aurantiaca Nutt.) Osage 
Orange. (Int.) 
Throughout the state about habitations. April. 
MORUS L. Mulberry. 
Morus rubra L. Red Mulberry. 
Common over the state on low ground. Tishomingo Co.; 
Lafayette Co.; Hinds Co. March. 
Geol. Survey Herb. 
URTICACEAE. Nettle Family. 
URTICA L. Nettle. 
Urtica gracilis Ait. (U. procera Willd.) Common American 
Nettle. 
Damp shaded places, perhaps throughout the state. Tisho- 
mingo Co. 
