quillwort

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Related to quillworts: Isoetaceae, Horsetails, Club mosses

quill·wort

 (kwĭl′wûrt′, -wôrt′)
n.
Any of several vascular, spore-bearing, aquatic or marsh plants of the genus Isoetes, having quill-like leaves.

quillwort

(ˈkwɪlˌwɜːt)
n
(Plants) any aquatic tracheophyte plant of the genus Isoetes, with quill-like leaves at the bases of which are spore-producing structures: family Isoetaceae, phylum Lycopodophyta (club mosses, etc)
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.quillwort - any of several spore-bearing aquatic or marsh plants having short rhizomes and leaves resembling quillsquillwort - any of several spore-bearing aquatic or marsh plants having short rhizomes and leaves resembling quills; worldwide except Polynesia
fern ally - pteridophytes of other classes than Filicopsida
genus Isoetes, Isoetes - type and genus of the Isoetaceae and sole extant genus of the order Isoetales
References in periodicals archive ?
From quillworts to monocots to dicots, from ultrastructure to developmental floral morphology to molecules, the topics presented by the participants emphasized the diversity of subjects and plant groups that Bill's closest collaborators and former students continue to study today.
Use of megaspores for taxonomy of quillworts was canonized by the monograph of Norma Pfeiffer (1922).
The divisions covered in this work are Equisetophyta and Lycopodiophyta, which include horsetails, scouring-rushes, quillworts, club-mosses, and spike-mosses.
This is the reason underlying the strategy of, for example, the quillworts (Isoetes), which fix carbon dioxide at night in the form of organic acids for use in photosynthesis during the day.