Isoëtes acadiensis

Kott

Canad. J. Bot. 59: 2592. 1981.

Common names: Acadian quillwort
Treatment appears in FNA Volume 2.

Plants aquatic, submerged. Rootstock nearly globose 2(–3)-lobed. Leaves evergreen, olive green to reddish brown, pale toward base, spirally arranged, to 20 cm, pliant, gradually tapering to tip. Velum covering less than 1/2 of sporangium. Sporangium wall brown-streaked. Megaspores white, 400-650 μm diam., rugulate to reticulate with ridges having rounded or smooth crests; girdle smooth. Microspores gray in mass, 25–35 μm, spinulose. 2n = 44.


Phenology: Spores mature in late summer.
Habitat: Emergent or in shalow water of slightly acid lakes, ponds, and streams

Distribution

V2 632-distribution-map.gif

N.B., Nfld. and Labr. (Nfld.), N.S., Mass., Maine, N.H., N.Y.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Isoëtes acadiensis"
W. Carl Taylor +, Neil T. Luebke +, Donald M. Britton +, R. James Hickey +  and Daniel F. Brunton +
Acadian quillwort +
N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Mass. +, Maine +, N.H. +  and N.Y. +
Emergent or in shalow water of slightly acid lakes, ponds, and streams +
Spores mature in late summer. +
Canad. J. Bot. +
Isoëtes acadiensis +
Isoëtes +
species +