Isoëtes caroliniana

(A. A. Eaton) Luebke

Amer. Fern. J. 82: 26. 1992.

Common names: Carolina quillwort
Basionym: Isoëtes engelmannii var. caroliniana A. A. Eaton Fern Bull 8: 60. 1900
Treatment appears in FNA Volume 2.

Plant aquatic, emergent. Rootstock nearly globose, 2-lobed. Leaves evergreen, bright green, pale toward base, spirally arranged, to 60 cm, pliant, gradually tapering to tip. Velum covering less than 3/4 of sporangium. Sporangium wall unpigmented. Megaspores white, 400–550 μm diam., cristate to reticulate with broken lamellate ridges; girdle obscure. Microspores light brown in mass, 24–34 μm, spinulose. 2n = 22.


Phenology: Spores mature summer.
Habitat: Emergent or in shallow water of upland lakes and bogs

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Isoëtes caroliniana"
W. Carl Taylor +, Neil T. Luebke +, Donald M. Britton +, R. James Hickey +  and Daniel F. Brunton +
(A. A. Eaton) Luebke +
Isoëtes engelmannii var. caroliniana +
Carolina quillwort +
N.C. +, Tenn. +, Va. +  and W.Va. +
Emergent or in shallow water of upland lakes and bogs +
Spores mature summer. +
Amer. Fern. J. +
Isoëtes caroliniana +
Isoëtes +
species +