Jepson eFlora: Taxon page
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Isoetes
QUILLWORT

Higher Taxonomy
Family: IsoetaceaeView Description 

Common Name: QUILLWORT FAMILY
Habit: Perennial herb, aquatic to terrestrial. Stem: buried, corm-like, 2--3-lobed, corky, brown. Leaf: simple, in grass-like tufts, spirally arranged on stem top, erect to spreading, < 30 cm, linear above base.
Genera In Family: 1 genus, 200+ species: worldwide.
eFlora Treatment Author: W. Carl Taylor & Jon E. Keeley
Scientific Editor: Alan R. Smith, Thomas J. Rosatti.

Isoetes

Etymology: (Greek: evergreen, from habit of some species) Note: Perhaps most poorly known lycophyte genus. Mature female spores, found in decaying leaf bases or soil, critical for identification, as are hand lens for texture when dry, microscope with micrometer for size. Hybrids (spores of variable size, shape) common between aquatic species, making them less distinct.
eFlora Treatment Author: W. Carl Taylor & Jon E. Keeley
Jepson Online Interchange
Key to Isoetes

Previous taxon: Isoetaceae
Next taxon: Isoetes bolanderi

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Citation for this treatment: W. Carl Taylor & Jon E. Keeley 2012, Isoetes, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=9464, accessed on April 20, 2018.

Citation for the whole project: Jepson Flora Project (eds.) 2018, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on April 20, 2018.