Difference between revisions of "Polypodium calirhiza"
Madroño 38: 235. 1991.
Basionym: Polypodium intermedium Hooker & Arnott
Synonyms: Polypodium vulgare var. intermedium (Hooker & Arnott) Fernald
Treatment appears in FNA Volume 2.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>rarely whitish to glaucous, moderately stout to slender, to 8 mm diam., acrid- or slightly sweet-tasting; scales concolored brown or slightly darker near point of attachment, lanceolate-ovate, symmetric, margins entire to erose. <b>Leaves</b> to 70 cm. <b>Petiole</b> usually slender, to 3 mm diam. <b>Blade</b> lanceolate-ovate to oblong, pinnatifid, widest below middle or occasionally at base, to 16 cm wide, leathery to herbaceous; rachis sparsely scaly to glabrescent abaxially, puberulent adaxially; scales lanceolate-ovate, usually more than 3 cells wide. <b>Segments</b> linear-lanceolate to oblong, usually less than 15 mm wide; margins conspicuously serrate; apex obtuse to acute; midrib puberulent adaxially. <b>Venation</b> weakly to moderately anastomosing, some to many segments lacking areoles. <b>Sori</b> midway between margin and midrib or slightly closer to midrib, usually less than 4 mm diam., oval when immature. <b>Sporangiasters</b> absent. <b>Spores</b> more than 58 µm, verrucose, surface projections less than 3 µm. <b>2n</b> = 148.</span><!-- |
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| + | |phenology=Sporulating winter–summer. | ||
|habitat=Cliffs and rocky slopes, sometimes epiphytic, on a variety of substrates but usually on granite or other igneous rocks | |habitat=Cliffs and rocky slopes, sometimes epiphytic, on a variety of substrates but usually on granite or other igneous rocks | ||
|elevation=0–1500 m | |elevation=0–1500 m | ||
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|basionyms=Polypodium intermedium | |basionyms=Polypodium intermedium | ||
|family=Polypodiaceae | |family=Polypodiaceae | ||
| + | |phenology=Sporulating winter–summer. | ||
|habitat=Cliffs and rocky slopes, sometimes epiphytic, on a variety of substrates but usually on granite or other igneous rocks | |habitat=Cliffs and rocky slopes, sometimes epiphytic, on a variety of substrates but usually on granite or other igneous rocks | ||
|elevation=0–1500 m | |elevation=0–1500 m | ||
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|publication year=1991 | |publication year=1991 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna- | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_235.xml |
|genus=Polypodium | |genus=Polypodium | ||
|species=Polypodium calirhiza | |species=Polypodium calirhiza | ||
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-->[[Category:Treatment]][[Category:Polypodium]] | -->[[Category:Treatment]][[Category:Polypodium]] | ||
Revision as of 13:14, 27 July 2019
Stems rarely whitish to glaucous, moderately stout to slender, to 8 mm diam., acrid- or slightly sweet-tasting; scales concolored brown or slightly darker near point of attachment, lanceolate-ovate, symmetric, margins entire to erose. Leaves to 70 cm. Petiole usually slender, to 3 mm diam. Blade lanceolate-ovate to oblong, pinnatifid, widest below middle or occasionally at base, to 16 cm wide, leathery to herbaceous; rachis sparsely scaly to glabrescent abaxially, puberulent adaxially; scales lanceolate-ovate, usually more than 3 cells wide. Segments linear-lanceolate to oblong, usually less than 15 mm wide; margins conspicuously serrate; apex obtuse to acute; midrib puberulent adaxially. Venation weakly to moderately anastomosing, some to many segments lacking areoles. Sori midway between margin and midrib or slightly closer to midrib, usually less than 4 mm diam., oval when immature. Sporangiasters absent. Spores more than 58 µm, verrucose, surface projections less than 3 µm. 2n = 148.
Phenology: Sporulating winter–summer.
Habitat: Cliffs and rocky slopes, sometimes epiphytic, on a variety of substrates but usually on granite or other igneous rocks
Elevation: 0–1500 m
Distribution
Calif., Oreg., Mexico.
Discussion
Although originally considered a cytotype of Polypodium californicum, P. calirhiza is an allotetraploid involving P. californicum and P. glycyrrhiza (S. A. Whitmore and A. R. Smith 1991) and therefore should be treated as a distinct species. Some individuals of P. calirhiza can be difficult to distinguish from the two parental species (see comments under P. californicum and P. glycyrrhiza); most collections can be identified based on a combination of blade shape, venation pattern, spore size, and geographic distribution. Polypodium calirhiza hybridizes with P. glycyrrhiza to produce sterile triploid plants with misshapen spores.
Selected References
None.
Lower Taxa
None.