L104 MISSISSIPPI STATE GEOLOGICAL SURVEY [Bull. 
Crataegus flava Ait. (C. flava pubescens Gray.) Summer Haw. 
Sandy soil; more common in the piney woods region, Simp- 
son Co. (Hilg. Ms.) 
Crataegus aestivalis Torr & Gray. May Haw. 
Low wet borders of streams and ponds in the pine barrens. 
Bay St. Louis. April. 
Allison Herb. — 
Crataegus uniflora Meunch. (C. tomentosa Michx.) Dwarf 
Thorn. 
Dry open copses throughout the state. 
PRUNUS L. 
Prunus Americana Marsh. (P. hyemalis Michx.) Wild Plum. 
Damp wooded slopes and stream banks throughout the 
state. Benton, Pontotoc, Lafayette, Tishomingo, Hinds, 
Clarke Counties. March-April. 
Geol. Survey Herb. Allison Herb. 
Prunus hortulana Bailey. (P. maritima Chapm. Wild Goose 
Plum. 
Littoral along Gulf Coast. March. 
Geol. Surv. Herb. 
Prunus angustifolia Marsh. (P. Chicasa Michx.) Old Field 
Plum; Chickasaw Plum. 
Common in old fields and waste lands throughout the state. 
February-March. 
Geol. Surv. Herb. 
Prunus umbellata Ell. Southern Sloe; Hog Plum. 
Open woods and edges of fields in pine barrens.  Enter- 
prise. March. 
Prunus mitis Beadle. 
Open woods. New Augusta. 
Geol. Survey Herb. 
Prunus serotina Khrh. Wild Black Cherry. 
Throughout the state on low rich ground. Mareh-April. 
Geol. Survey Herb. Allison Herb. 
