ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Ophioglossum engelmannii
 
 
 CLASS:    EUSPORANGIOSPIDA
 ORDER:    OPHIOGLOSSALES
 FAMILY:   OPHIOGLOSSACEAE
 SCIENTIFIC NAME:  Ophioglossum engelmannii
 AUTHORITY:  Prantl
 
 COMMON NAMES:
    ADDER'S-TONGUE FERN
 
 SYNONOMY:   None
 
 PLANTS CODE: OPEN
 
 NATURAL COMMUNITIES:
     FOREST
       THICKETS
     PRIMARY
       GLADE
         LIMESTONE
       BLUFF
         CLIFF (ROCKY BLUFF)
           LIMESTONE
 
 SAF FOREST COVER TYPE:  UNAVAILABLE
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   HARDIN          JACKSON         JERSEY          JOHNSON         POPE
   RANDOLPH        UNION
 
 GROWTH FORM:  Fern-allies
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Adventitious   (fibrous)   (rhizomes)
    LEAF TYPE:   Simple
    LEAF MARGIN:   Entire
    LEAF VENATION:  Other
    LEAF SHAPE:     Oblong
    INFLORESCENCE:           No
    FRUIT:   No
 
 DISTINGUISHING CHARACTERISTIC COMMENTS:
     Leaf venation composed of primary areoles surrounding secondary areoles;
     leaf with pointed tip.
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Native
 
 POPULATION DYNAMICS:
     STATE STATUS: Not listed
     FEDERAL STATUS: Not listed
     COMMONNESS:  Rare
     ENDEMIC:   NOT-ENDEMIC
 
 BIOLOGIC:
     HABIT:   Forb
     LIFE CYCLE:   Perennial
     REPRODUCTION:   Sexual
     TROPHIC STATUS:  Autotrophic
     C02 FIXATION:  C3
 
 ECODISTRIBUTION COMMENTS:
     Species is distributed on calcareous soils; hillsides.
 
 ENVIRONMENTAL RELATIONSHIPS:   No data entered
 
 FUNCTIONAL RELATIONSHIPS:    No data entered
 
 FUNCTIONAL DATA COMMENTS:
     This species is mycorrhizal, but the type is unknown.
 HUMAN RELATIONSHIP DATA:
     SHOWY FLOWERS:  NO
 
 WILDLIFE AND LIVESTOCK INFORMATION:   No data entered
 
 REVEGETATION PLANTINGS:    No data entered
 
 
 REFERENCES:
Jones, G. N.  1963.  Flora of Illinois.  Third ed.  American Midland Naturalist
     Monograph 7.  University of Notre Dame, Indiana.  401 pp.
Steyermark, J. A.  1963.  Flora of Missouri.  Iowa State University Press, Ames.
     1725 pp.
Gleason, H. A., and A. Cronquist.  1963.  Manual of vascular plants of north-
     eastern United States and adjacent Canada.  Van Nostrand Reinhold Co.,
     New York.  810 pp.
Fernald, M. L.  1950.  Gray's manual of botany.  8th ed.  American Book Co.,
     New York.  1632 pp.
Mohlenbrock, R. H.  1967-continuing.  The illustrated flora of Illinois.
     Southern Illinois University Press, Carbondale.
Downton, W. J. S.  1975.  The occurrence of C4 photosynthesis among plants.
     Photosynthetica 9(1): 96-105.
 
 END OF DATA FOR SPECIES  Ophioglossum engelmannii
 
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 ILPIN was developed by Louis Iverson*, with data compiled by David Ketzner and Jeanne Karnes
 Illinois Natural History Survey, 607 E. Peabody Dr., Champaign, IL 61820
     *currently employed by USDA Forest Service, 359 Main Rd., Delaware, OH 43015