View source for Mortonia

{{Treatment/ID
|accepted_name=Mortonia
|accepted_authority=A. Gray
|publications={{Treatment/Publication
|title=Smithsonian Contr. Knowl.
|place=3(5): 34, plate 4. 1852
|year=1852
}}
|basionyms=
|synonyms=
|hierarchy=Celastraceae;Mortonia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Celastraceae]]</div><div class="higher-taxon"><small>genus</small>[[Mortonia]]</div></div>
|etymology=For Samuel George Morton, 1799–1851, North American naturalist
|volume=Volume 12
|mention_page=page 112
|treatment_page=page 128
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism growth form"><b>Shrubs.</b></span> <span class="statement" id="st-d0_s1" data-properties="branchlet shape;branchlet pubescence or relief"><b>Branchlets </b>terete, scabrous.</span> <span class="statement" id="st-d0_s2" data-properties="leaf duration;leaf arrangement;leaf arrangement"><b>Leaves </b>persistent, alternate, crowded;</span> <span class="statement" id="st-d0_s3" data-properties="stipule presence">stipules present;</span> <span class="statement" id="st-d0_s4" data-properties="petiole presence">petiole essentially absent;</span> <span class="statement" id="st-d0_s5" data-properties="">blade margins entire;</span> <span class="statement" id="st-d0_s6" data-properties="blade margin architecture or shape;blade margin architecture">1-veined.</span> <span class="statement" id="st-d0_s7" data-properties="inflorescence position or structure subtype"><b>Inflorescences </b>terminal, cymose-panicles or racemes.</span> <span class="statement" id="st-d0_s8" data-properties="flower reproduction;flower architecture or shape"><b>Flowers </b>bisexual, radially symmetric;</span> <span class="statement" id="st-d0_s9" data-properties="perianth position;androecium position">perianth and androecium perigynous;</span> <span class="statement" id="st-d0_s10" data-properties="hypanthium fusion">hypanthium free from ovary;</span> <span class="statement" id="st-d0_s11" data-properties="sepal quantity;sepal fusion">sepals 5, distinct;</span> <span class="statement" id="st-d0_s12" data-properties="petal quantity;petal coloration">petals 5, white;</span> <span class="statement" id="st-d0_s13" data-properties="nectary position;nectary texture">nectary intrastaminal, usually lining hypanthium, fleshy;</span> <span class="statement" id="st-d0_s14" data-properties="stamen quantity;stamen fusion">stamens 5, adnate to nectary margin;</span> <span class="statement" id="st-d0_s15" data-properties="staminode presence">staminodes 0;</span> <span class="statement" id="st-d0_s16" data-properties="pistil architecture">pistil 5-carpellate;</span> <span class="statement" id="st-d0_s17" data-properties="ovary position;ovary architecture or structure in adjective form;ovary placentation">ovary superior, 5-locular, placentation axile;</span> <span class="statement" id="st-d0_s18" data-properties="style quantity">style 1;</span> <span class="statement" id="st-d0_s19" data-properties="stigma quantity">stigmas 5;</span> <span class="statement" id="st-d0_s20" data-properties="ovule quantity">ovules 2 per locule.</span> <span class="statement" id="st-d0_s21" data-properties="fruit architecture or shape;fruit architecture or structure in adjective form;fruit shape;apex architecture or shape"><b>Fruits </b>nutlike (small, hard-walled, indehiscent), 1-locular, oblong to cylindric, apex beaked.</span> <span class="statement" id="st-d0_s22" data-properties="seed quantity;seed shape;seed architecture"><b>Seeds </b>1 per fruit, oblong, not winged;</span> <span class="statement" id="st-d0_s23" data-properties="aril presence">aril absent.</span><!--

-->{{Treatment/Body
|distribution=sw United States;Mexico;Central America
|discussion=<p>Species 8–10 (4 in the flora).</p><!--
--><p>Mortonia is poorly understood taxonomically.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Keys==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-2
|2
|Leaf blades ovate or broadly elliptic to suborbiculate, 5–16 × 4–12 mm, length 1.2–1.4 times width.
|[[#key-0-3| > 3]]
|-id=key-0-3
|3
|Leaves 5–6 × 4–5 mm; fruits 3.5–4.5 mm.
|[[Mortonia scabrella|Mortonia scabrella]]
|-id=key-0-3
|3
|Leaves 7–16 × 5–12 mm; fruits 5–7 mm.
|[[Mortonia utahensis|Mortonia utahensis]]
|}
</div><!--
--><div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-1-1
|1
|Leaf blades linear-oblanceolate or oblanceolate, 15–25 mm, length 5 times width, glabrous, pliable, margins often thickened, not revolute.
|[[Mortonia greggii|Mortonia greggii]]
|-id=key-1-1
|1
|Leaf blades ovate, elliptic, oblong-elliptic, suborbiculate, or obovate, 3–16 mm, length 1.2–2.5 times length, usually scabridulous, rarely glabrous, rigid, margins not thickened, revolute.
|[[#key-1-2| > 2]]
|-id=key-1-2
|2
|Leaf blades oblong-elliptic to narrowly obovate, 3–5 × 1.5–2 mm, length 2–2.5 times width.
|[[Mortonia sempervirens|Mortonia sempervirens]]
|-id=key-1-2
|2
|Leaf blades ovate or broadly elliptic to suborbiculate, 5–16 × 4–12 mm, length 1.2–1.4 times width.
|[[#key-1-3| > 3]]
|-id=key-1-3
|3
|Leaves 5–6 × 4–5 mm; fruits 3.5–4.5 mm.
|[[Mortonia scabrella|Mortonia scabrella]]
|-id=key-1-3
|3
|Leaves 7–16 × 5–12 mm; fruits 5–7 mm.
|[[Mortonia utahensis|Mortonia utahensis]]
|}
</div></div><!--

-->{{#Taxon:
name=Mortonia
|author=Jinshuang Ma;Geoffrey A. Levin
|authority=A. Gray
|rank=genus
|parent rank=family
|synonyms=
|basionyms=
|family=Celastraceae
|distribution=sw United States;Mexico;Central America
|reference=None
|publication title=Smithsonian Contr. Knowl.
|publication year=1852
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V12/V12_412.xml
|genus=Mortonia
|androecium position=perigynous
|apex architecture or shape=beaked
|aril presence=absent
|blade margin architecture=1-veined
|blade margin architecture or shape=entire
|branchlet pubescence or relief=scabrous
|branchlet shape=terete
|flower architecture or shape=symmetric
|flower reproduction=bisexual
|fruit architecture or shape=nutlike
|fruit architecture or structure in adjective form=1-locular
|fruit shape=oblong;cylindric
|hypanthium fusion=free
|inflorescence position or structure subtype=terminal
|leaf arrangement=crowded;alternate
|leaf duration=persistent
|nectary position=intrastaminal
|nectary texture=fleshy
|ovary architecture or structure in adjective form=5-locular
|ovary placentation=axile
|ovary position=superior
|ovule quantity=2
|perianth position=perigynous
|petal coloration=white
|petal quantity=5
|petiole presence=absent
|pistil architecture=5-carpellate
|seed architecture=not winged
|seed quantity=1
|seed shape=oblong
|sepal fusion=distinct
|sepal quantity=5
|stamen fusion=adnate
|stamen quantity=5
|staminode presence=absent
|stigma quantity=5
|stipule presence=absent
|style quantity=1
|whole_organism growth form=shrub
}}<!--

-->[[Category:Treatment]][[Category:Celastraceae]]