View source for Boykinia

{{Treatment/ID
|accepted_name=Boykinia
|accepted_authority=Nuttall
|publications={{Treatment/Publication
|title=J. Acad. Nat. Sci. Philadelphia
|place=7: 113. 1834, name conserved ,
}}
|basionyms=
|synonyms=
|hierarchy=Saxifragaceae;Boykinia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Saxifragaceae]]</div><div class="higher-taxon"><small>genus</small>[[Boykinia]]</div></div>
|etymology=For Samuel Boykin, 1786–1848, planter, physician, and naturalist of Milledgeville, Georgia
|volume=Volume 8
|mention_page=page 45, 47, 120, 124, 132
|treatment_page=page 125
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism architecture;whole_organism architecture;whole_organism growth form"><b>Herbs,</b> rhizomatous, not stoloniferous (± stoloniferous in B. intermedia).</span> <span class="statement" id="st-d0_s1" data-properties="flowering-stem orientation;flowering-stem architecture;flowering-stem some measurement;flowering-stem pubescence;flowering-stem pubescence"><b>Flowering-</b>stems erect, leafy, 10–130 cm, densely stipitate-glandular and eglandular-pubescent.</span> <span class="statement" id="st-d0_s2" data-properties="leaf position"><b>Leaves </b>in basal rosette and cauline;</span> <span class="statement" id="st-d0_s3" data-properties="cauline leaf position;cauline leaf size;bract architecture">cauline leaves similar to basal, gradually reduced distally to sessile bracts;</span> <span class="statement" id="st-d0_s4" data-properties="stipule presence">stipules present;</span> <span class="statement" id="st-d0_s5" data-properties="petiole pubescence">petiole densely stipitate-glandular;</span> <span class="statement" id="st-d0_s6" data-properties="basal leaf-blade shape;basal leaf-blade shape;base shape;ultimate margin shape;apex shape;apex shape;surface pubescence">basal leaf-blades reniform to reniform-orbiculate or cordate, shallowly lobed to deeply cleft, base cordate, ultimate margins crenate to serrate, apex acute or rounded, surfaces stipitate-glandular, adaxial surface grooved over veins;</span> <span class="statement" id="st-d0_s7" data-properties="adaxial surface architecture;adaxial surface architecture">venation palmate.</span> <span class="statement" id="st-d0_s8" data-properties="inflorescence architecture;cyme architecture;cyme position or structure subtype;branch architecture;branch architecture"><b>Inflorescences </b>compound, dichasial cymes, terminal from terminal bud in rosette, branches (3–) 5–20 (–30) -flowered, bracteate.</span> <span class="statement" id="st-d0_s9" data-properties="flower architecture or shape"><b>Flowers </b>± radially symmetric;</span> <span class="statement" id="st-d0_s10" data-properties="hypanthium fusion;hypanthium quantity;hypanthium fusion;hypanthium coloration;hypanthium coloration or density;ovary some measurement">hypanthium adnate 1/2–5/6 to ovary, free from ovary 0.7–3 mm, usually green, sometimes purple;</span> <span class="statement" id="st-d0_s11" data-properties="sepal quantity;sepal coloration">sepals 5, green to purple;</span> <span class="statement" id="st-d0_s12" data-properties="petal quantity;petal coloration">petals 5, white (sometimes with pink veins in B. richardsonii);</span> <span class="statement" id="st-d0_s13" data-properties="hypanthium fusion">nectary tissue encircling base of styles at junction of ovary and free hypanthium;</span> <span class="statement" id="st-d0_s14" data-properties="stamen quantity">stamens 5;</span> <span class="statement" id="st-d0_s15" data-properties="">filaments linear to subulate;</span> <span class="statement" id="st-d0_s16" data-properties="filament shape">(anthers apiculate or obtuse);</span> <span class="statement" id="st-d0_s17" data-properties="2-locular carpel position;2-locular carpel fusion">ovary 2/3 to completely inferior, 2-locular, carpels connate proximally;</span> <span class="statement" id="st-d0_s18" data-properties="ovary quantity;ovary placentation">placentation axile;</span> <span class="statement" id="st-d0_s19" data-properties="style quantity">styles 2;</span> <span class="statement" id="st-d0_s20" data-properties="stigma quantity">stigmas 2.</span> <span class="statement" id="st-d0_s21" data-properties="capsule architecture or shape"><b>Capsules </b>2-beaked.</span> <span class="statement" id="st-d0_s22" data-properties=""><b>Seeds </b>(ca. 50–500), usually black, (brown in B. richardsonii), ellipsoid, tuberculate (smooth in B. richardsonii).</span> <span class="statement" id="st-d0_s23" data-properties="seed coloration;seed shape;seed relief;x chromosome quantity">x = 7.</span><!--

-->{{Treatment/Body
|distribution=North America;nw Mexico;e Asia (Japan)
|discussion=<p>Neoboykinia H. Hara; Therofon Rafinesque</p><!--
--><p>Species 7 (6 in the flora).</p><!--
--><p>The Japanese species is Boykinia lycoctonifolia (Maximovicz) Engler, which, based on its morphology, seems to be most closely related to B. aconitifolia.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Inflorescence branches 3-flowered; seeds smooth.
|[[Boykinia richardsonii|Boykinia richardsonii]]
|-id=key-0-1
|1
|Inflorescence branches 5-30-flowered; seeds tuberculate
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Leaf blades usually orbiculate-cordate, sometimes reniform, lobed to 1/2 their lengths; stipules of cauline leaves expansions from petiole base
|[[#key-0-3| > 3]]
|-id=key-0-2
|2
|Leaf blades usually reniform, rarely cordate, lobed to 1/2-3/4 their lengths; stipules of cauline leaves foliaceous or expansions from petiole base
|[[#key-0-4| > 4]]
|-id=key-0-3
|3
|Petals 2-3 times as long as sepals; basal leaf blades usually 3-9-lobed.
|[[Boykinia occidentalis|Boykinia occidentalis]]
|-id=key-0-3
|3
|Petals shorter than or to 1.5 times as long as sepals; leaf blades shallowly and indistinctly lobed.
|[[Boykinia rotundifolia|Boykinia rotundifolia]]
|-id=key-0-4
|4
|Hypanthia saucer-shaped; petals suborbiculate to ovate, base contracted to claw, margins undulate.
|[[Boykinia major|Boykinia major]]
|-id=key-0-4
|4
|Hypanthia campanulate to turbinate; petals ovate to spatulate, base tapered to claw, margins plane
|[[#key-0-5| > 5]]
|-id=key-0-5
|5
|Rhizomes usually underground, not usually stoloniferous; stipules of cauline leaves usually expansions from petiole base, fringed with brown hairs, sometimes foliaceous; nectaries green.
|[[Boykinia aconitifolia|Boykinia aconitifolia]]
|-id=key-0-5
|5
|Rhizomes proliferating above ground, stoloniferous; stipules of cauline leaves usually foliaceous; nectaries greenish yellow.
|[[Boykinia intermedia|Boykinia intermedia]]
|}
</div></div><!--

-->{{#Taxon:
name=Boykinia
|author=Richard J. Gornall
|authority=Nuttall
|rank=genus
|parent rank=family
|synonyms=
|basionyms=
|family=Saxifragaceae
|illustrator=Yevonn Wilson-Ramsey
|illustration copyright=Flora of North America Association
|distribution=North America;nw Mexico;e Asia (Japan)
|reference=None
|publication title=J. Acad. Nat. Sci. Philadelphia
|publication year=
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V8/V8_250.xml
|genus=Boykinia
|2-locular carpel fusion=connate
|2-locular carpel position=inferior
|adaxial surface architecture=palmate;grooved
|apex shape=rounded;acute
|basal leaf-blade shape=reniform;reniform-orbiculate or cordate shallowly lobed
|base shape=cordate
|bract architecture=sessile
|branch architecture=bracteate;(3-)5-20(-30)-flowered
|capsule architecture or shape=2-beaked
|cauline leaf position=basal
|cauline leaf size=reduced
|cyme architecture=dichasial
|cyme position or structure subtype=terminal
|filament shape=linear;subulate
|flower architecture or shape=symmetric
|flowering-stem architecture=leafy
|flowering-stem orientation=erect
|flowering-stem pubescence=eglandular-pubescent;stipitate-glandular
|flowering-stem some measurement=10cm;130cm
|hypanthium coloration=green
|hypanthium coloration or density=purple
|hypanthium fusion=free;free;adnate
|hypanthium quantity=1/2;5/6
|inflorescence architecture=compound
|leaf position=cauline
|ovary placentation=axile
|ovary quantity=2/3
|ovary some measurement=0.7mm;3mm
|petal coloration=white
|petal quantity=5
|petiole pubescence=stipitate-glandular
|seed coloration=black
|seed relief=tuberculate
|seed shape=ellipsoid
|sepal coloration=green;purple
|sepal quantity=5
|stamen quantity=5
|stigma quantity=2
|stipule presence=absent
|style quantity=2
|surface pubescence=stipitate-glandular
|ultimate margin shape=crenate;serrate
|whole_organism architecture=not stoloniferous;rhizomatous
|whole_organism growth form=herb
|x chromosome quantity=7
}}<!--

-->[[Category:Treatment]][[Category:Saxifragaceae]]