ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Cystopteris X illinoensis
 
 
 CLASS:    LEPTOSPORANGIOPSIDA
 ORDER:    FICALES
 FAMILY:   ASPLENIACEAE
 SCIENTIFIC NAME:  Cystopteris X illinoensis
 AUTHORITY:  Moran
 
 COMMON NAMES:
    FRAGILE FERN
 
 SYNONOMY:   None
 
 PLANTS CODE: CYIL
 
 NATURAL COMMUNITIES:
     CULTURAL
       DEVELOPED LAND
 
 
 SAF FOREST COVER TYPE:
     NO
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   WINNEBAGO
 
 GROWTH FORM:  Fern-allies
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Adventitious   (rhizomes)
    LEAF TYPE:    Compound  (pinnately)
    LEAF SHAPE:     Lanceolate   Ovate
    INFLORESCENCE:           No
    FRUIT:   No
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Native
 
 POPULATION DYNAMICS:
     STATE STATUS: Not listed
     FEDERAL STATUS: Not listed
     COMMONNESS:  Rare
 
 
 BIOLOGIC:
     HABIT:   Forb
     LIFE CYCLE:   Perennial
     TROPHIC STATUS:  Autotrophic
     C02 FIXATION:  C3
 
 BIOLOGIC COMMENTS:
     This is a sterile triploid hybrid between C. bulbifera and C. X tenuis (Moran,
     1982).
 
 ENVIRONMENTAL RELATIONSHIPS:   No data entered
 
 ENVIRONMENTAL RELATIONS COMMENTS:
     Found only once in an abandoned quarry (Moran, 1982).
 
 
 FUNCTIONAL RELATIONSHIPS:    No data entered
 HUMAN RELATIONSHIP DATA:
     SHOWY FLOWERS:  NO     LANDSCAPING:  NO
 
 WILDLIFE AND LIVESTOCK INFORMATION:   No data entered
 
 REVEGETATION PLANTINGS:
     AGRESSIVENESS:   Low
 
 
 
 REFERENCES:
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.
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:
     Moran, R.C. 1982. Cystopteris X illinoensis: a new natural hybrid
     fern. American Fern Journal 72: 41-44.
 
 END OF DATA FOR SPECIES  Cystopteris X illinoensis
 
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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