Difference between revisions of "Maxonia"

C. Christensen

Smithsonian Misc. Collect. 66(9): 3. 1916.

Common names: Climbing wood fern
Etymology: for William R. Maxon, (1877–1948), American pteridologist
Treatment appears in FNA Volume 2.
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--><span class="statement" id="st-d0_s0" data-properties="plant habitat"><b>Plants </b>hemiepiphytic.</span> <span class="statement" id="st-d0_s1" data-properties="tree growth form or orientation;tree growth form;stolon count"><b>Stems </b>long-creeping and climbing trees, stolons absent.</span> <span class="statement" id="st-d0_s2" data-properties="leaf growth form;leaf reproduction;leaf condition or size;leaf duration"><b>Leaves </b>strongly dimorphic, fertile leaves greatly contracted, evergreen.</span> <span class="statement" id="st-d0_s3" data-properties="petiole variability;base length"><b>Petiole </b>± equaling length of blade, base not swollen;</span> <span class="statement" id="st-d0_s4" data-properties="vascular-bundle count;vascular-bundle arrangement;vascular-bundle shape">vascular-bundles more than 3, arranged in an arc, ± round in cross-section.</span> <span class="statement" id="st-d0_s5" data-properties="blade shape;blade shape;blade size;blade texture;apex shape"><b>Blade </b>deltate, 3–4-pinnate-pinnatifid, gradually reduced distally to pinnatifid apex, somewhat leathery.</span> <span class="statement" id="st-d0_s6" data-properties="pinna architecture;segment margin shape;segment margin shape;segment margin shape"><b>Pinnae </b>not articulate to rachis, segment margins dentate to lobed;</span> <span class="statement" id="st-d0_s7" data-properties="proximal pinna size;proximal pinna size;proximal pinna architecture;proximal pinna shape;proximal pinna shape;side orientation">proximal pinnae largest or nearly so, petiolulate, ± equilateral or inequilateral, basiscopic side with pinnules longer than on acroscopic side;</span> <span class="statement" id="st-d0_s8" data-properties="costa architecture;groove architecture">costae adaxially deeply grooved, grooves continuous from rachis to costae to costules;</span> <span class="statement" id="st-d0_s9" data-properties="hair coloration;scale count;scale arrangement or course or shape">indument of transparent hairs along costae on both sides, also with a few linear scales abaxially on costae.</span> <span class="statement" id="st-d0_s10" data-properties="vein fusion;vein architecture;vein shape"><b>Veins </b>free, simple or forked.</span> <span class="statement" id="st-d0_s11" data-properties="sorus shape;between midrib and margin row count"><b>Sori </b>in 1 row between midrib and margin, round;</span> <span class="statement" id="st-d0_s12" data-properties="indusium shape;indusium duration;sinus depth">indusia round-reniform with shallow sinus, persistent.</span> <span class="statement" id="st-d0_s13" data-properties=""><b>Spores </b>brownish, spiny to broadly rugose.</span> <span class="statement" id="st-d0_s14" data-properties="spore coloration;spore architecture or shape;spore relief;x chromosome count">x = 41.</span><!--
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--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>hemiepiphytic. <b>Stems</b> long-creeping and climbing trees, stolons absent. <b>Leaves</b> strongly dimorphic, fertile leaves greatly contracted, evergreen. <b>Petiole</b> ± equaling length of blade, base not swollen; vascular bundles more than 3, arranged in an arc, ± round in cross section. <b>Blade</b> deltate, 3–4-pinnate-pinnatifid, gradually reduced distally to pinnatifid apex, somewhat leathery. <b>Pinnae</b> not articulate to rachis, segment margins dentate to lobed; proximal pinnae largest or nearly so, petiolulate, ± equilateral or inequilateral, basiscopic side with pinnules longer than on acroscopic side; costae adaxially deeply grooved, grooves continuous from rachis to costae to costules; indument of transparent hairs along costae on both sides, also with a few linear scales abaxially on costae. <b>Veins</b> free, simple or forked. <b>Sori</b> in 1 row between midrib and margin, round; indusia round-reniform with shallow sinus, persistent. <b>Spores</b> brownish, spiny to broadly rugose. <b>x</b> = 41.</span><!--
  
 
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|publication year=1916
 
|publication year=1916
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V2/V2_265.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_265.xml
 
|genus=Maxonia
 
|genus=Maxonia
|apex shape=pinnatifid
 
|base length=not swollen
 
|between midrib and margin row count=1
 
|blade shape=3-4-pinnate-pinnatifid;deltate
 
|blade size=reduced
 
|blade texture=leathery
 
|costa architecture=grooved
 
|groove architecture=continuous
 
|hair coloration=transparent
 
|indusium duration=persistent
 
|indusium shape=round-reniform
 
|leaf condition or size=contracted
 
|leaf duration=evergreen
 
|leaf growth form=dimorphic
 
|leaf reproduction=fertile
 
|petiole variability=equaling
 
|pinna architecture=not articulate
 
|plant habitat=hemiepiphytic
 
|proximal pinna architecture=petiolulate
 
|proximal pinna shape=inequilateral;equilateral
 
|proximal pinna size=nearly;largest
 
|scale arrangement or course or shape=linear
 
|scale count=few
 
|segment margin shape=dentate;lobed
 
|side orientation=basiscopic
 
|sinus depth=shallow
 
|sorus shape=round
 
|spore architecture or shape=spiny
 
|spore coloration=brownish
 
|spore relief=rugose
 
|stolon count=absent
 
|tree growth form=climbing
 
|tree growth form or orientation=long-creeping
 
|vascular-bundle arrangement=arranged
 
|vascular-bundle shape=round
 
|vein architecture=simple
 
|vein fusion=free
 
|vein shape=forked
 
|x chromosome count=41
 
 
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Revision as of 13:15, 27 July 2019

Plants hemiepiphytic. Stems long-creeping and climbing trees, stolons absent. Leaves strongly dimorphic, fertile leaves greatly contracted, evergreen. Petiole ± equaling length of blade, base not swollen; vascular bundles more than 3, arranged in an arc, ± round in cross section. Blade deltate, 3–4-pinnate-pinnatifid, gradually reduced distally to pinnatifid apex, somewhat leathery. Pinnae not articulate to rachis, segment margins dentate to lobed; proximal pinnae largest or nearly so, petiolulate, ± equilateral or inequilateral, basiscopic side with pinnules longer than on acroscopic side; costae adaxially deeply grooved, grooves continuous from rachis to costae to costules; indument of transparent hairs along costae on both sides, also with a few linear scales abaxially on costae. Veins free, simple or forked. Sori in 1 row between midrib and margin, round; indusia round-reniform with shallow sinus, persistent. Spores brownish, spiny to broadly rugose. x = 41.

Discussion

Species 1 (1 in the flora).

Lower Taxa