238 MISSISSIPPI STATE GEOLOGICAL SURVEY 

AVICENNIA L. 
Avicennia nitida Jacq. Black Mangrove. 
Wet littoral, sandy soil (Small). Door Pomt (Coastal 
Islands). 
Geol. Sury. Herb. 
PHYRMA L. Lopseed. 
Phyrma leptostachya L. 
Damp rich shaded soils. Ripley; Grenada Co.; Charleston; 
Warren Co.: Copiah Co. June. 
Geol. Surv. Herb. 
NEPETACEAE. Mint Family. 
MESOSPHAERUM L. Swamp Basil. 
Mesosphaerum rugosum (L.) Pollard (Hyptis radiata Willd.) 
Margins of pine barrens ponds. South Mississippi (Hilg.) ; 
Rankin Co. (Hilg.); Biloxi (Tracy); Bay St. Louis (Alli- 
son) ; Jones Co. (Allison); Tylertown. July. 
Geol. Surv. Herb. Allison Herb. 
COLLINSONIA L. Horse Balm. 
Collinsonia scabriuscula Ait. Purple Horse Palm. 
Damp thickets. Clinton (T. P. Bailey). Sept. 
Collinsonia Canadensis L. Canadian Horse Balm. 
Rich woodlands. Northern part of state (Mohr). July. 
_ Collinsonia anisata Sims. Citronella 
Dry shaded slopes. Southern part of state (Mohr). Sept. 
Collinsonia verticillata Baldw. 
Rich shaded woods (Small). Spring and summer. 
MENTHA L. Mint. 
Mentha spicata L. (Mentha viridis L.) Spearmint. 
Low damp soil perhaps throughout the state. West Point; 
July-August. 
Geol. Surv. Herb. 
