Lycophytes: Isoetales
WEAKLEY'S FLORA (5/21/15):
Isoetes engelmannii
FAMILY
Isoetaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Isoetes engelmannii
FAMILY
Isoetaceae
LESS THAN
VASCULAR FLORA OF THE CAROLINAS (1968) 005-01-002:
Isoetes engelmannii
FAMILY
Isoetaceae
SYNONYMOUS WITH
Georgia Quillworts (Musselman, 2001)
Isoetes engelmannii
LESS THAN
Manual of the Southeastern Flora (Small, 1933)
Isoetes engelmannii var. engelmannii
COMMON NAME:
Engelman's Quillwort
Click or hover over the thumbnails to see larger pictures.
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Patrick D. McMillan pdmiengelmanii_pc1
April Pickens County SC
Poe Creek State Forest
I. engelmannii leaves can be up to 1m long and are usually dark green, per Georgia Quillworts. Tipularia (Musselman, 2001).
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Peter Schafran psc_eng4
April Rockbridge VA
Depression pond. Megaspores at 63X, not cleaned
)
Peter Schafran psc_eng2
May Stanly NC
Morrow Mountain State Park
Plants amphibious in wet ditches, running or standing shallow fresh water, per Synopsis of Isoetes in the Southeastern United States. Castanea (Boom, 1982).
)
Peter Schafran psc_eng1
June Cumberland TN
Megaspores at 63X
)
Peter Schafran psc_eng3
August Polk TN
Riverbank
)
Peter Schafran psc_eng5
Month Unknown
Scanning electron micrograph of megaspores at 100X
Megaspores light cream or white, reticulate, 400-600 micra in diameter, per Synopsis of Isoetes in the Southeastern United States. Castanea (Boom, 1982).
)
Peter Schafran psc_eng6
Month Unknown
Scanning electron micrograph of megaspores at 100X