Property:Wood

Linnaeus

Sp. Pl. 1: 367. 1753.

Common names: Waterwort élatine
Etymology: Greek name for a plant with firlike leaves
Synonyms: Crypta Nuttall
Treatment appears in FNA Volume 12. Treatment on page 349. Mentioned on page 348.
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* A [[Has type::Text]] property defining a single value.
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{{Treatment/ID
* Structure: [[Subproperty of::wood]]
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|accepted_name=Elatine
* A subproperty of [[Subproperty of::stem]]
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|accepted_authority=Linnaeus
* A [[Property:Part of|Part of]] [[Part of::Property:stem|stem]]
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|publications={{Treatment/Publication
==Types of wood==
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|title=Sp. Pl.
{{#ask: [[Type of::Property:wood]]|limit=500|format=category|default=None.}}
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|place=1: 367. 1753
==Parts of wood==
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|year=1753
{{#ask: [[Part of::Property:wood]]|limit=500|format=category|default=None.}}
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}}
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|common_names=Waterwort;élatine
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|basionyms=
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|synonyms={{Treatment/ID/Synonym
 +
|name=Crypta
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|authority=Nuttall
 +
}}
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|hierarchy=Elatinaceae;Elatine
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|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Elatinaceae]]</div><div class="higher-taxon"><small>genus</small>[[Elatine]]</div></div>
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|etymology=Greek name for a plant with firlike leaves
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|volume=Volume 12
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|mention_page=page 348
 +
|treatment_page=page 349
 +
}}<!--
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--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> submersed or emergent aquatic, glabrous. <b>Stems</b> erect, ascending, decumbent, or prostrate, with longitudinal air spaces, rooting at nodes. <b>Leaves</b>: stipules membranous; petiole present or absent; blade margins entire, with hydathodes. <b>Inflorescences</b>: flowers usually solitary, sometimes 2[–3] per node. <b>Pedicels</b> present or absent. <b>Flowers</b>: sepals 2–4, connate basally, equal or 1 smaller, not carinate, apex obtuse; petals (0 or) 2–4, apex obtuse; stamens [0–]1–8; pistil 2–4-carpellate, ovary 2–4-locular, apex truncate; styles 2–4; stigmas 2–4. <b>Capsules</b> membranous. <b>Seeds</b> 2–33[–44] per locule, brown to yellowish brown, straight or curved (nearly circular in <i>E. californica</i>), surface with hexagonal, rectangular, elliptic, or ± round pits (pits oriented with longer dimension at right angles to length of seed). <b>x</b> = 9.</span><!--
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-->{{Treatment/Body
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|distribution=North America;Mexico;South America;Europe;Asia;Africa;Pacific Islands;Australia.
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|discussion=<p>Species ca. 25 (10 in the flora).</p>
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|tables=
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|references={{Treatment/Reference
 +
|id=duncan1964a
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|text=Duncan, W. H. 1964. New Elatine populations in the southeastern United States. Rhodora 66: 47–53.
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}}{{Treatment/Reference
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|id=fassett1939a
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|text=Fassett, N. C. 1939. Notes from the herbarium of the University of Wisconsin. No. 17. Elatine and other aquatics. Rhodora 41: 367–377.
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}}{{Treatment/Reference
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|id=fernald1917a
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|text=Fernald, M. L. 1917. The genus Elatine in eastern North America. Rhodora 19: 10–15.
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}}{{Treatment/Reference
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|id=fernald1941a
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|text=Fernald, M. L. 1941b. Elatine americana and E. triandra. Rhodora 43: 208–211.
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}}
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}}<!--
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--><div class="treatment-key">
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==Key==
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<div class="treatment-key-group">
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{| class="wikitable fna-keytable"
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|-id=key-0-1
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|1
 +
|Petals 2; capsules 2-locular.
 +
|[[Elatine minima|Elatine minima]]
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|-id=key-0-1
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|1
 +
|Petals usually 3–4, sometimes 0; capsules 3–4-locular.
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|[[#key-0-2| > 2]]
 +
|-id=key-0-2
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|2
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|Sepals 4; petals 4; capsules 4-locular.
 +
|[[#key-0-3| > 3]]
 +
|-id=key-0-3
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|3
 +
|Seeds curved 90–180°; pedicels 1.5–2.5(–3.5) mm, recurved in fruit; w United States.
 +
|[[Elatine californica|Elatine californica]]
 +
|-id=key-0-3
 +
|3
 +
|Seeds straight or curved to 15º; pedicels 0.1–23 mm, erect; Quebec.
 +
|[[Elatine ojibwayensis|Elatine ojibwayensis]]
 +
|-id=key-0-2
 +
|2
 +
|Sepals 2–3 (rarely 4 in E. triandra); petals 3 (sometimes 0 in E. ambigua); capsules 3-locular.
 +
|[[#key-0-4| > 4]]
 +
|-id=key-0-4
 +
|4
 +
|Pedicels recurved in fruit, 0.5–2.5 mm.
 +
|[[Elatine ambigua|Elatine ambigua]]
 +
|-id=key-0-4
 +
|4
 +
|Pedicels erect, 0–0.5 mm.
 +
|[[#key-0-5| > 5]]
 +
|-id=key-0-5
 +
|5
 +
|Stamens 1–6, number variable within plant.
 +
|[[Elatine heterandra|Elatine heterandra]]
 +
|-id=key-0-5
 +
|5
 +
|Stamens 3.
 +
|[[#key-0-6| > 6]]
 +
|-id=key-0-6
 +
|6
 +
|Seed pits ± round, (9–)14–17 per row.
 +
|[[Elatine brachysperma|Elatine brachysperma]]
 +
|-id=key-0-6
 +
|6
 +
|Seed pits angular-hexagonal, (13–)16–35 per row.
 +
|[[#key-0-7| > 7]]
 +
|-id=key-0-7
 +
|7
 +
|Seeds ellipsoid, pit length 3–5 times width; stipule margins entire.
 +
|[[Elatine chilensis|Elatine chilensis]]
 +
|-id=key-0-7
 +
|7
 +
|Seeds oblong or slenderly cylindric, pit length 1–3 times width; stipule margins dentate.
 +
|[[#key-0-8| > 8]]
 +
|-id=key-0-8
 +
|8
 +
|Leaves reddish green; seed pit length 1–2 times width.
 +
|[[Elatine rubella|Elatine rubella]]
 +
|-id=key-0-8
 +
|8
 +
|Leaves light green to green; seed pit length 2–3 times width.
 +
|[[#key-0-9| > 9]]
 +
|-id=key-0-9
 +
|9
 +
|Leaf blades linear, lanceolate or narrowly oblong, apices acute or obtuse.
 +
|[[Elatine triandra|Elatine triandra]]
 +
|-id=key-0-9
 +
|9
 +
|Leaf blades obovate or broadly spatulate, apices rounded to shallowly emarginate.
 +
|[[Elatine americana|Elatine americana]]
 +
|}
 +
</div></div><!--
 +
 
 +
-->{{#Taxon:
 +
name=Elatine
 +
|author=Hamid Razifard; Gordon C. Tucker; Donald H. Les
 +
|authority=Linnaeus
 +
|rank=genus
 +
|parent rank=family
 +
|synonyms=Crypta
 +
|basionyms=
 +
|family=Elatinaceae
 +
|distribution=North America;Mexico;South America;Europe;Asia;Africa;Pacific Islands;Australia.
 +
|reference=duncan1964a;fassett1939a;fernald1917a;fernald1941a
 +
|publication title=Sp. Pl.
 +
|publication year=1753
 +
|special status=
 +
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V12/V12_1045.xml
 +
|genus=Elatine
 +
}}<!--
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 +
-->[[Category:Treatment]][[Category:Elatinaceae]]

Revision as of 18:15, 24 September 2019

Herbs, submersed or emergent aquatic, glabrous. Stems erect, ascending, decumbent, or prostrate, with longitudinal air spaces, rooting at nodes. Leaves: stipules membranous; petiole present or absent; blade margins entire, with hydathodes. Inflorescences: flowers usually solitary, sometimes 2[–3] per node. Pedicels present or absent. Flowers: sepals 2–4, connate basally, equal or 1 smaller, not carinate, apex obtuse; petals (0 or) 2–4, apex obtuse; stamens [0–]1–8; pistil 2–4-carpellate, ovary 2–4-locular, apex truncate; styles 2–4; stigmas 2–4. Capsules membranous. Seeds 2–33[–44] per locule, brown to yellowish brown, straight or curved (nearly circular in E. californica), surface with hexagonal, rectangular, elliptic, or ± round pits (pits oriented with longer dimension at right angles to length of seed). x = 9.

Distribution

North America, Mexico, South America, Europe, Asia, Africa, Pacific Islands, Australia.

Discussion

Species ca. 25 (10 in the flora).

Key

1 Petals 2; capsules 2-locular. Elatine minima
1 Petals usually 3–4, sometimes 0; capsules 3–4-locular. > 2
2 Sepals 4; petals 4; capsules 4-locular. > 3
3 Seeds curved 90–180°; pedicels 1.5–2.5(–3.5) mm, recurved in fruit; w United States. Elatine californica
3 Seeds straight or curved to 15º; pedicels 0.1–23 mm, erect; Quebec. Elatine ojibwayensis
2 Sepals 2–3 (rarely 4 in E. triandra); petals 3 (sometimes 0 in E. ambigua); capsules 3-locular. > 4
4 Pedicels recurved in fruit, 0.5–2.5 mm. Elatine ambigua
4 Pedicels erect, 0–0.5 mm. > 5
5 Stamens 1–6, number variable within plant. Elatine heterandra
5 Stamens 3. > 6
6 Seed pits ± round, (9–)14–17 per row. Elatine brachysperma
6 Seed pits angular-hexagonal, (13–)16–35 per row. > 7
7 Seeds ellipsoid, pit length 3–5 times width; stipule margins entire. Elatine chilensis
7 Seeds oblong or slenderly cylindric, pit length 1–3 times width; stipule margins dentate. > 8
8 Leaves reddish green; seed pit length 1–2 times width. Elatine rubella
8 Leaves light green to green; seed pit length 2–3 times width. > 9
9 Leaf blades linear, lanceolate or narrowly oblong, apices acute or obtuse. Elatine triandra
9 Leaf blades obovate or broadly spatulate, apices rounded to shallowly emarginate. Elatine americana

Showing 1 related entity.


... more about "Elatine"
Hamid Razifard +, Gordon C. Tucker +  and Donald H. Les +
Linnaeus +
Waterwort +  and élatine +
North America +, Mexico +, South America +, Europe +, Asia +, Africa +, Pacific Islands +  and Australia. +
Greek name for a plant with firlike leaves +
duncan1964a +, fassett1939a +, fernald1917a +  and fernald1941a +
Crypta +
Elatine +
Elatinaceae +