View source for Isoëtes prototypus

{{Treatment/ID
|accepted_name=Isoëtes prototypus
|accepted_authority=D. M. Britton
|publications={{Treatment/Publication
|title=Canad. J. Bot.
|place=69: 278. 1991
|year=1991
}}
|common_names=Prototype quillwort
|basionyms=
|synonyms=
|hierarchy=Isoëtaceae;Isoëtes;Isoëtes prototypus
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Isoëtaceae]]</div><div class="higher-taxon"><small>genus</small>[[Isoëtes]]</div><div class="higher-taxon"><small>species</small>[[Isoëtes prototypus]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>aquatic, submerged. <b>Rootstock</b> nearly globose, 2-lobed. <b>Leaves</b> evergreen, dark green, pale reddish brown toward base, spirally arranged, to 12 cm, rigid, gradually tapering to tip. <b>Velum</b> covering entire sporangium. <b>Sporangium</b> wall unpigmented, entirely enclosed in translucent saccate membrane. <b>Megaspores</b> white, 425–575 µm diam., obscurely rugulate with molded and wavy ridges; girdle obscure. <b>Microspores</b> light brown in mass, 24–32 µm, spinulose. <b>2n</b> = 22.</span><!--

-->{{Treatment/Body
|phenology=Spores mature in summer.
|habitat=Deep water of cold, oligotrophic, acidic lakes
|distribution=N.B.;N.S.;Maine.
|discussion=<p>Of conservation concern.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Isoëtes prototypus
|authority=D. M. Britton
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Isoëtaceae
|phenology=Spores mature in summer.
|habitat=Deep water of cold, oligotrophic, acidic lakes
|distribution=N.B.;N.S.;Maine.
|reference=None
|publication title=Canad. J. Bot.
|publication year=1991
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V2/V2_544.xml
|genus=Isoëtes
|species=Isoëtes prototypus
}}<!--

-->[[Category:Treatment]][[Category:Isoëtes]]