Mitella nuda L.
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publication ID |
https://doi.org/ 10.5281/zenodo.47476 |
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DOI |
https://doi.org/10.5281/zenodo.6256061 |
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persistent identifier |
https://treatment.plazi.org/id/0DC359A5-1B0E-A29E-4708-0B6391A4DB7C |
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treatment provided by |
Plazi |
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scientific name |
Mitella nuda L. |
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1. Mitella nuda L. ,
Sp. PL: 406 (1753).
Tiarella unifolia Retz ., Observ. Bot. 3: 30 (1783).
Mitella reniformis Lam ., Encycl. 4: 196 (1797).
Mitella cordifolia Lam ., Encycl. 4: 196 (1797).
Japanese name: Maruba-charumeru-so.
Evergreen perennial herbs. Rhizomes slender, long creeping and branched, glandular, stoloniferous; leaves on rhizome alternate. Radical leaves few; blade ovate-orbicular, subcordate, 1.5-3.5 cm long and wide, shallowly crenate with pointed teeth, sparsely pilose on both surfaces; petiole 5-10 cm long, slender, appressed glandular hairy, with a pair of axillary stipules at base. Flowering stems 15-25 cm tall, slender, erect, densely short glandular hairy. Cauline leaves none, rarely 1, short petiolate. Inflorescences racemes sparsely 3-10-flowered. Flowers June; pedicel to 4 mm long, glandular hairy. Calyx tube broadly cup-shaped, glandular; disc on inner surface 10-lobed, thin; calyx lobes 5, triangular-ovate, acute, 3-nerved, minutely glandular on both surfaces, ca. 1.4 mm long, obliquely spreading and reflexed, pale green with pale purplish tinge. Petals 5, 9-pinnatiparted, not glandular, ca. 4.8 mm long, spreading or reflexed, pale green or pale purplish; pinnae slender, spreading. Stamens 10, ca. 1 mm long, attached to uppermost margin of calyx tube; anthers rounded, cordate, ca. 0.6 mm long just before anthesis, whitish yellow. Ovary half inferior, dome-shaped with slender styles apically, minutely glandular, with purplish tinge. Styles 2, divergent not glandular, ca. 0.6 mm long; stigma apical, pointed. Seeds few, broadly oblong, ca. 1.2 mm long, glabrous, smooth, black.
Chromosome number: 2n = 14 (Wakabayashi 1973), 28. Japanese plants are diploid (2n = 14).
Japan: C. to E. Hokkaido and C. Honshu (SE. Nagano Pref.). Mossy and shady places in woods in mountains; lowlands in Hokkaido; 1500-2000 m in Honshu.
Distr.: Siberia to Ussuri, Japan, North Korea, NE. China and North America.
Icones: Nakai & Honda, Nov. FI. Jap. 3: f. 33 (1939); Kitamura & Murata, Herb. PI. 2: f. 71 1 & 2; Satake et al., Herb. PL 2: photo. 151 1 & 2.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.