View source for Tolmiea diplomenziesii

{{Treatment/ID
|accepted_name=Tolmiea diplomenziesii
|accepted_authority=Judd
|publications={{Treatment/Publication
|title=Brittonia
|place=59: 218, fig. 1. 2007,
}}
|basionyms=
|synonyms=
|hierarchy=Saxifragaceae;Tolmiea;Tolmiea diplomenziesii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Saxifragaceae]]</div><div class="higher-taxon"><small>genus</small>[[Tolmiea]]</div><div class="higher-taxon"><small>species</small>[[Tolmiea diplomenziesii]]</div></div>
|volume=Volume 8
|mention_page=page 107
|treatment_page=page 108
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Basal </b>rosettes usually not well developed. <b>Cauline</b> leaves distinctly longer than wide, i.e., length-width quotient 0.8–1.4 (average 1); plantlets on leaves sporadically produced. <b>2n</b> = 14.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring–summer.
|habitat=Moist woods, streamsides
|elevation=0-1800 m
|distribution=Calif.;Oreg.
|discussion=<p>Hybrids (with 2n = 14) between <i>Tolmiea diplomenziesii</i> [reported by D. E. Soltis and B. A. Bohm (1985) as diploid <i>T. menziesii</i>] and <i>Tellima grandiflora</i> have been reported from southwestern Oregon (Soltis and Bohm).</p><!--
--><p><i>Tolmiea diplomenziesii</i> is well supported as a species distinct from <i>T. menziesii</i>, with which it traditionally has been confused. <i>Tolmiea diplomenziesii</i>, as indicated by its specific epithet, is a diploid (2n = 14), while the related <i>T. menziesii</i> is an autotetraploid (2n = 28), as has been supported by numerous chromosome counts, as well as studies of flavonoid and anthocyanin chemistry, isozymes, and DNA restriction sites (reviewed by Judd et al. along with original description of former). In addition, the diploid and tetraploid species are essentially allopatric, occupying the southern and northern portions, respectively, of the range of <i>Tolmiea</i> (D. E. Soltis 1984b). The two species form a clade (i.e., the genus <i>Tolmiea</i>), closely related to the genera <i>Heuchera</i>, <i>Mitella</i>, and <i>Tiarella</i>. <i>Tolmiea diplomenziesii</i> is apparently reproductively isolated from <i>T. menziesii</i> based on greenhouse crosses; triploid individuals have not been discovered despite extensive field work in the region of contact between the two species (triploid hybrids are thus assumed to be nonexistent or at least rare). <i>Tolmiea diplomenziesii</i> differs from <i>T. menziesii</i> in its usually smaller stature, with less well-developed rosettes, the cauline leaves distinctly longer than wide, i.e., length-width quotient 0.8–1.4 (average 1, excluding length of basal lobes, versus leaflike bracts of <i>T. menziesii</i> not or only slightly longer than wide, i.e., length-width quotient usually 0.6–1.1; average 0.9), and less frequent plantlet formation. Herbarium material can be difficult to identify, but the characters given above, when used in conjunction with geographic range (see above), result in correct identification of nearly all specimens.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Tolmiea diplomenziesii
|author=
|authority=Judd
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Saxifragaceae
|phenology=Flowering spring–summer.
|habitat=Moist woods, streamsides
|elevation=0-1800 m
|distribution=Calif.;Oreg.
|reference=None
|publication title=Brittonia
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V8/V8_214.xml
|genus=Tolmiea
|species=Tolmiea diplomenziesii
}}<!--

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