A GUIDE AND KEY TO AQUATIC PLANTS 135 



species, is found in moist places in various parts of our territory, 

 but is not truly aquatic. Small lists these species under the genus 

 Phyla. 



LABIATAE Mint family 



1. Scutellaria L. 



S. laterifolia L. Skullcap —Found over all of our area, apparently 

 most common in alluvial situations. 



2. Lycopus [Tourn.] L. 



1. Blades of the lower leaves divided or deeply lobed 1. L. americanus. 



1. Blades of the lower leaves merely toothed 2. 



2. Leaf-blades petioled 2. L. rubellus. 



2. Leaf-blades sessile and sometimes clasping 3. 



3. Stems glabrous at least on the lower part; bracts sub- 3. L. sessilifolius. 



tending flower clusters narrowed to base. 

 3. Stems densely puberulent or finely pubescent; bracts 4. L. pubens. 

 truncate at base. 



1. L. americanus Muhl. — Wet places over all of our territory. 



2. L. rubellus Moench— Coastal Plain in various situations includ- 

 ing river swamps, Florida north and west to beyond the confines of 

 our area. 



3. X. sessilifolius A. Gray— Distribution almost the same as that 

 of the preceding. 



4. L. pubens Britton — Coastal Plain in acid pineland ponds, 

 Florida to Mississippi and South Carolina. 



SCROPHULARIACEAE Figwort family 

 1. Herpestris Gaertn. f. 



H. rotundifolia Gaertn. f. — Ponds near the coast, Florida to be- 

 yond our limit m the north. Not restricted to tidal habitats as has 



been supposed. 



2. Hydrotrida Small 



H. caroliniana (Walt.) Small— Range includes all of our Coastal 

 Plain. Not frequently recorded from some areas, but in Georgia it 

 is common in limesink ponds in the Southern part of the State and 

 has been noted a few times along the coast. 



3. Gratiola L. 



1. Leaves elliptic-lanceolate to ovate; capsule equalling 1. G. virginiana. 



or exceeding sepals. 

 1. Leaves linear-lanceolate; capsule exceeded by sepals — ?. G. ramosa. 



1. G. virginiana L. Hedge Hyssop — Range includes all of our terri- 

 tory, and is occasionally found in truly aquatic areas especially in 

 alluvial situations. 



