[Vor. 3 
360 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
OPHIOGLOSSACEAE 
OPHIOGLOSSUM ENGELMANNI Prantl. 2044, 2942, 3358. 
Engelmann's adder’s-tongue has been found in thin soil 
of limestone barrens near Carterville and in similar situ- 
ations along North Fork of Spring River near Neck City. 
At the latter station several large colonies were growing. 
Вотвуснитм VIRGINIANUM (L.) Sw. 616, 617, 618, 2030, 2947, 
3154, 3698, 3359. 
BornvcuruM oBLIQUUM Muhl. 3153. 
Rare and local. A few plants were found in rich hillside 
woods at a station along Center Creek, about four miles 
southeast of Carthage, September 11, 1910. 
EQUISETACEAE 
EQUISETUM ARVENSE L., 890, 2544. 
FQUISETUM HYEMALE L. 958. 
SELAGINELLACEAE 
SELAGINELLA RUPESTRIS (L.) Spring. 1322. 
PINACEAE 
JUNIPERUS VIRGINIANA L. 887, 1919. 
The red cedar is rare in our county. A number of small 
trees were noted on rocky uplands north of Spring River 
between Carthage and Alba; some large stumps were found 
along a bluff of North Fork between Jasper and Preston, 
but no living plants were left at this station. Young plants 
are occasionally found in woods throughout, the seeds prob- 
ably having been carried by birds from planted trees. 
TYPHACEAE 
'TYPHA LATIFOLIA L. 2306. 
SPARGANIACEAE 
SPARGANUM AMERICANUM Nutt. 780, 3158, 3159. 
POTAMOGETON OBTUSIFOLIUS Mertens & Koch. 3184. 
PorAMoGETON FoLIosus Raf. 3251. 
POTAMOGETON DIMORPHUS Raf. 1257, 2514, 3879. 
POTAMOGETON PECTINATUS L. 2204, 3251. 
ALISMACEAE 
SAGITTARIA LATIFOLIA Willd. 460, 809, 1080. 
