No. 17] FLOWERING PLANTS AND FERNS $1 
Chaetochloa magna (Griseb.) Seribn. (Setaria magna Griseb.). 
Large Swamp Millet. 
Coastal Islands and Gulf Coast (Tracy). July. 
Chaetochloa compesita (H.B.K.) Seribn. 
Wilkinson Co. 
A. & M. College Herb. 
CENCHRUS L. Sandbur. 
Cenchrus tribuloides L. Common Sandbur. 
Oxford; Coastal plains and Islands (Tracy). July-Oct. 
A. & M. College Herb. 
Cenchrus macrocephalus Scribn. Large Sandbur. 
Coast and Islands. July-October. 
A. & M. College Herb. 
Cenchrus incertus \i. A. Curtis. Southern Sandbur. 
Coast and Coastal Islands. July-October. 
A. & M. College Herb. 
PENICILLARIA Beauv. 
Penicillaria spicata (L.) Willd. 
Waste places. Summer and fall (Small). 
STENOTAPHRUM Trin. St. Augustine Grass. 
Stenotaphrum secundatum ( Walt.) Kuntze. (Ischaemum secun- 
datum Walt.). 
Starkville and Coastal Islands (Tracey). June. 
A. & M. College Herb. 
HYDROCHLOA Beauv. 
Hydrochloa fluitans (Michx.) Nash (Zizania fluitans Michx.). 
Coastal pine regions (Mohr). 
LUZIOLA Juss. 
Luziola Alabamensis Chapm. 
Wet soil. Poplarville. Summer and fall. 
A. & M. College Herb. 
