ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Asplenium X gravesii
 
 
 CLASS:    LEPTOSPORANGIOPSIDA
 ORDER:    FICALES
 FAMILY:   ASPLENIACEAE
 SCIENTIFIC NAME:  Asplenium X gravesii
 AUTHORITY:  Maxon
 
 COMMON NAMES:
    GRAVES' SPLEENWORT
 
 SYNONOMY:
     Asplenosorus gravesii (Maxon) Mickel
 
 PLANTS CODE: ASGR5
 
 NATURAL COMMUNITIES:
     PRIMARY
       BLUFF
         CLIFF (ROCKY BLUFF)
           SANDSTONE
 
 SAF FOREST COVER TYPE:  UNAVAILABLE
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   UNION           WILLIAMSON
 
 GROWTH FORM:  Fern-allies
 
 TAXONOMY COMMENTS:
     Considered to be a sterile hybrid between Asplenium pinnatifidum and Asplenium
     bradleyi.
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Adventitious   (fibrous)   (rhizomes)
    LEAF TYPE:    Compound  (pinnately)
    LEAF MARGIN:   Crenate   Lobed  (pinnately)
    LEAF VENATION:  Pinnate
 
    INFLORESCENCE:           No
    FRUIT:   No
 
 DISTINGUISHING CHARACTERISTIC COMMENTS:
     Evergreen; leaves pinnate below and pinnatifid above.
 
 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
     TROPHIC STATUS:  Autotrophic
     C02 FIXATION:  C3
     SEX:          None
 
 ENVIRONMENTAL RELATIONSHIPS:
     GROWTH OF SPECIES IN VARIOUS CONDITIONS:
          GRAVEL         No data entered    SAND           No data entered
          SANDY LOAM     No data entered    LOAM           No data entered
          CLAY LOAM      No data entered    CLAY           No data entered
          DENSE CLAY     No data entered    ORGANIC SOIL   No data entered
          NEUTRAL pH     No data entered    ACIDIC SOIL    No data entered
          EXTREMELY ACID No data entered    SALINE SOIL    No data entered
          SODIC SOIL     No data entered    SODIC-SALINE   No data entered
          ROCKY OUTCROPS Good               GENTLE SLOPES  No data entered
          MODERATE SLOPE No data entered    STEEP SLOPES   No data entered
 
 FUNCTIONAL RELATIONSHIPS:
     MAJOR POLLINATION AGENT:   None
 
 HUMAN RELATIONSHIP DATA:
     SHOWY FLOWERS:  NO
 
 WILDLIFE AND LIVESTOCK INFORMATION:   No data entered
 
 REVEGETATION PLANTINGS:    No data entered
 
 
 REFERENCES:
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.
Mohlenbrock, R. H., ed.  1986.  Guide to the vascular flora of Illinois.
     Revised and enlarged edition.  Southern Illinois University Press,
     Carbondale.  507 pp.
 
 OTHER REFERENCES:
     Mickel, J. T.  1974.  The status and composition of Asplenosorus.  American
          Fern Journal 64: 119.
 
 END OF DATA FOR SPECIES  Asplenium X gravesii
 
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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