Difference between revisions of "Linderniaceae"
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| − | --><span class="statement" id="st-undefined" data-properties=""><b>Herbs </b>[subshrubs], annual or perennial, not fleshy [fleshy], autotrophic. <b>Stems</b> prostrate or repent to ascending or erect, often rooting at nodes, 4-angled or weakly so (Micranthemum). <b>Leaves</b> cauline, or basal and cauline [basal], opposite, rarely whorled, simple; stipules absent; petiole present or absent; blade not fleshy [fleshy], leathery or not, margins entire, undulate, or toothed. <b>Inflorescences</b> terminal, racemelike, or axillary, flowers solitary (Micranthemum). <b>Pedicels</b> present; bracteoles absent. <b>Flowers</b> bisexual, perianth and androecium hypogynous; sepals 4 or 5, connate or partially so proximally, calyx radially or bilaterally symmetric; petals 4 or 5, connate, corolla bilaterally symmetric, bilabiate or unilabiate, cylindric, campanulate, or rotate; stamens 2 or 4, adnate to corolla throat, didynamous or equal, abaxial filaments geniculate; staminodes 0 or 2; pistil 1, 2-carpellate, ovary superior, 2-locular (sometimes incompletely in Micranthemum), placentation axile; ovules orthotropous, unitegmic, tenuinucellate; style 1; stigma 1, 2-lobed, capitate or clavate or neither (Micranthemum). <b>Fruits</b> capsules, dehiscence septicidal, poricidal (later septicidal and loculicidal), or irregular. <b>Seeds</b> 15–600, white, yellow, or gold, cylindric, ellipsoid, oblong to narrowly obconic, or irregularly angled, wings absent; embryo straight, endosperm rudimentary.</span><!-- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Herbs </b>[subshrubs], annual or perennial, not fleshy [fleshy], autotrophic. <b>Stems</b> prostrate or repent to ascending or erect, often rooting at nodes, 4-angled or weakly so (<i>Micranthemum</i>). <b>Leaves</b> cauline, or basal and cauline [basal], opposite, rarely whorled, simple; stipules absent; petiole present or absent; blade not fleshy [fleshy], leathery or not, margins entire, undulate, or toothed. <b>Inflorescences</b> terminal, racemelike, or axillary, flowers solitary (<i>Micranthemum</i>). <b>Pedicels</b> present; bracteoles absent. <b>Flowers</b> bisexual, perianth and androecium hypogynous; sepals 4 or 5, connate or partially so proximally, calyx radially or bilaterally symmetric; petals 4 or 5, connate, corolla bilaterally symmetric, bilabiate or unilabiate, cylindric, campanulate, or rotate; stamens 2 or 4, adnate to corolla throat, didynamous or equal, abaxial filaments geniculate; staminodes 0 or 2; pistil 1, 2-carpellate, ovary superior, 2-locular (sometimes incompletely in <i>Micranthemum</i>), placentation axile; ovules orthotropous, unitegmic, tenuinucellate; style 1; stigma 1, 2-lobed, capitate or clavate or neither (<i>Micranthemum</i>). <b>Fruits</b> capsules, dehiscence septicidal, poricidal (later septicidal and loculicidal), or irregular. <b>Seeds</b> 15–600, white, yellow, or gold, cylindric, ellipsoid, oblong to narrowly obconic, or irregularly angled, wings absent; embryo straight, endosperm rudimentary.</span><!-- |
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|distribution=North America;Mexico;West Indies;Central America;South America;Europe;Asia;Africa;Pacific Islands;Australia;pantropical to temperate;mostly Old World. | |distribution=North America;Mexico;West Indies;Central America;South America;Europe;Asia;Africa;Pacific Islands;Australia;pantropical to temperate;mostly Old World. | ||
|discussion=<p>Genera 20, species ca. 250 (3 genera, 10 species in the flora).</p><!-- | |discussion=<p>Genera 20, species ca. 250 (3 genera, 10 species in the flora).</p><!-- | ||
| − | --><p>The genera here included in Linderniaceae were placed traditionally in Scrophulariaceae tribe Gratioleae D. Don (for example, F. W. Pennell 1935 and most subsequent authors). Molecular analyses by D. C. Albach et al. (2005), B. Oxelman et al. (2005), and R. Rahmanzadeh et al. (2005) have contributed to the redefinition of Scrophulariaceae and to the recognition of Linderniaceae, including Micranthemum.</p><!-- | + | --><p>The genera here included in Linderniaceae were placed traditionally in Scrophulariaceae tribe Gratioleae D. Don (for example, F. W. Pennell 1935 and most subsequent authors). Molecular analyses by D. C. Albach et al. (2005), B. Oxelman et al. (2005), and R. Rahmanzadeh et al. (2005) have contributed to the redefinition of Scrophulariaceae and to the recognition of Linderniaceae, including <i>Micranthemum</i>.</p><!-- |
| − | --><p>E. Fischer et al. (2013) presented a phylogeny for Linderniaceae based on broad taxon sampling and concluded that, while the family is monophyletic, realignments within the family are necessary. As an example, some species placed traditionally in Lindernia (including three of those occurring in the flora area) were found to be included within segregated genera.</p><!-- | + | --><p>E. Fischer et al. (2013) presented a phylogeny for Linderniaceae based on broad taxon sampling and concluded that, while the family is monophyletic, realignments within the family are necessary. As an example, some species placed traditionally in <i>Lindernia</i> (including three of those occurring in the flora area) were found to be included within segregated genera.</p><!-- |
--><p>In addition to the molecular data supporting the monophyly of this clade, Linderniaceae are recognized morphologically as a distinct lineage in the Lamiales by possessing abaxial geniculate filaments, expressed in the species of the flora area either in stamens or staminodes. They also lack iridoid compounds and a type of protein body present in the genera previously allied with those now in Linderniaceae (D. C. Albach et al. 2005; R. Rahmanzadeh et al. 2005; D. C. Tank et al. 2006).</p> | --><p>In addition to the molecular data supporting the monophyly of this clade, Linderniaceae are recognized morphologically as a distinct lineage in the Lamiales by possessing abaxial geniculate filaments, expressed in the species of the flora area either in stamens or staminodes. They also lack iridoid compounds and a type of protein body present in the genera previously allied with those now in Linderniaceae (D. C. Albach et al. 2005; R. Rahmanzadeh et al. 2005; D. C. Tank et al. 2006).</p> | ||
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| − | |Sepals 5; petals 5; stamens 4 and staminodes 0 or stamens 2 and staminodes . | + | |Sepals 5; petals 5; stamens 4 and staminodes 0 or stamens 2 and staminodes 2. |
|[[Lindernia|Lindernia]] | |[[Lindernia|Lindernia]] | ||
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| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V17/V17_66.xml |
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Revision as of 16:02, 18 September 2019
Herbs [subshrubs], annual or perennial, not fleshy [fleshy], autotrophic. Stems prostrate or repent to ascending or erect, often rooting at nodes, 4-angled or weakly so (Micranthemum). Leaves cauline, or basal and cauline [basal], opposite, rarely whorled, simple; stipules absent; petiole present or absent; blade not fleshy [fleshy], leathery or not, margins entire, undulate, or toothed. Inflorescences terminal, racemelike, or axillary, flowers solitary (Micranthemum). Pedicels present; bracteoles absent. Flowers bisexual, perianth and androecium hypogynous; sepals 4 or 5, connate or partially so proximally, calyx radially or bilaterally symmetric; petals 4 or 5, connate, corolla bilaterally symmetric, bilabiate or unilabiate, cylindric, campanulate, or rotate; stamens 2 or 4, adnate to corolla throat, didynamous or equal, abaxial filaments geniculate; staminodes 0 or 2; pistil 1, 2-carpellate, ovary superior, 2-locular (sometimes incompletely in Micranthemum), placentation axile; ovules orthotropous, unitegmic, tenuinucellate; style 1; stigma 1, 2-lobed, capitate or clavate or neither (Micranthemum). Fruits capsules, dehiscence septicidal, poricidal (later septicidal and loculicidal), or irregular. Seeds 15–600, white, yellow, or gold, cylindric, ellipsoid, oblong to narrowly obconic, or irregularly angled, wings absent; embryo straight, endosperm rudimentary.
Distribution
North America, Mexico, West Indies, Central America, South America, Europe, Asia, Africa, Pacific Islands, Australia, pantropical to temperate, mostly Old World.
Discussion
Genera 20, species ca. 250 (3 genera, 10 species in the flora).
The genera here included in Linderniaceae were placed traditionally in Scrophulariaceae tribe Gratioleae D. Don (for example, F. W. Pennell 1935 and most subsequent authors). Molecular analyses by D. C. Albach et al. (2005), B. Oxelman et al. (2005), and R. Rahmanzadeh et al. (2005) have contributed to the redefinition of Scrophulariaceae and to the recognition of Linderniaceae, including Micranthemum.
E. Fischer et al. (2013) presented a phylogeny for Linderniaceae based on broad taxon sampling and concluded that, while the family is monophyletic, realignments within the family are necessary. As an example, some species placed traditionally in Lindernia (including three of those occurring in the flora area) were found to be included within segregated genera.
In addition to the molecular data supporting the monophyly of this clade, Linderniaceae are recognized morphologically as a distinct lineage in the Lamiales by possessing abaxial geniculate filaments, expressed in the species of the flora area either in stamens or staminodes. They also lack iridoid compounds and a type of protein body present in the genera previously allied with those now in Linderniaceae (D. C. Albach et al. 2005; R. Rahmanzadeh et al. 2005; D. C. Tank et al. 2006).
Selected References
None.
Lower Taxa
Illustrations
| Family ⠉ | Plate of taxon | Illustrator ⠉ | |
|---|---|---|---|
 | Linderniaceae Linderniaceae Linderniaceae | Lindernia dubia Torenia fournieri Micranthemum umbrosum | Yevonn Wilson-Ramsey Yevonn Wilson-Ramsey Yevonn Wilson-Ramsey |
Key
| 1 | Corolla tubes 21–36(–40) mm; calyces winged. | Torenia |
| 1 | Corolla tubes 0.3–10 mm; calyces not winged. | > 2 |
| 2 | Sepals 5; petals 5; stamens 4 and staminodes 0 or stamens 2 and staminodes 2. | Lindernia |
| 2 | Sepals 4; petals 4; stamens 2, staminodes 0. | Micranthemum |