Monilophytes (ferns): Leptosporangiate Ferns (true ferns): Polypodiales
WEAKLEY'S FLORA (5/21/15):
Cystopteris tenuis
FAMILY
Cystopteridaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Cystopteris tenuis
FAMILY
Dryopteridaceae
SYNONYMOUS WITH
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Cystopteris fragilis var. mackayi
LESS THAN
Flora of West Virginia (Strausbaugh & Core, 1978)
Cystopteris fragilis
COMMON NAME:
Mackay's Bladder Fern, Mackay's Fragile Fern
Click or hover over the thumbnails to see larger pictures.
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JK Marlow jkm160628_117
June Polk County NC
Pearson's Falls
Fronds 6-14" long and 1-3" wide; erect, arching, or prostrate, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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JK Marlow jkm160628_118
June Polk County NC
Pearson's Falls
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JK Marlow jkm160702_166
July Jackson County NC
Blade lanceolate, widest at or just below middle, with narrow tip, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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JK Marlow jkm160702_168b
July Jackson County NC
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JK Marlow jkm160702_172b
July Jackson County NC
Sori round, between midrib and margin. Indusia disappear as sori mature, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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JK Marlow jkm160702_173
July Jackson County NC
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JK Marlow jkm160702_174
July Jackson County NC
Stipe dark brown at base w a few scales, mostly green or strawcolored above, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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JK Marlow jkm160726_021
July Polk County NC
Pearson's Falls
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JK Marlow jkm160726_022
July Polk County NC
Pearson's Falls
Veins extending to pinnae margins, directed into teeth AND notches, per Peterson Field Guide to Ferns of Northeastern and Central North America.
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JK Marlow jkm160726_024
July Polk County NC
Pearson's Falls