Difference between revisions of "Athyrium distentifolium var. americanum"
Naturaliste Canad. 93: 272. 1966..
Common names: American alpine lady fern athyrie alpestre sous-espèce américaine
Basionym: Athyrium alpestre var. americanum Butters Rhodora 19: 204. 1917
Synonyms: Athyrium alpestre subsp. americanum (Butters) Lellinger Athyrium alpestre var. gaspense Fernald Athyrium americanum (Butters) Maxon Athyrium distentifolium subsp. americanum (Butters) Hultén
Treatment appears in FNA Volume 2.
RevisionBot (talk | contribs) m (Bot: Adding category Revised Since Print) |
GeoffLevin (talk | contribs) m (Corrected basionym and a synonym to match Talk page.) |
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|common_names=American alpine lady fern;athyrie alpestre sous-espèce américaine | |common_names=American alpine lady fern;athyrie alpestre sous-espèce américaine | ||
| − | |basionyms= | + | |basionyms=|basionyms={{Treatment/ID/Basionym |
| − | | | ||
|name=Athyrium alpestre var. americanum | |name=Athyrium alpestre var. americanum | ||
|authority=Butters | |authority=Butters | ||
| − | + | |rank=variety | |
| − | | | + | |publication_title=Rhodora |
| − | | | + | |publication_place=19: 204. 1917 |
| − | }}{{Treatment/ID/Synonym | + | }} |
| − | |name=Athyrium | + | |synonyms={{Treatment/ID/Synonym |
| + | |name=Athyrium alpestre subsp. americanum | ||
|authority=(Butters) Lellinger | |authority=(Butters) Lellinger | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=subspecies |
| + | }} {{Treatment/ID/Synonym | ||
|name=Athyrium alpestre var. gaspense | |name=Athyrium alpestre var. gaspense | ||
|authority=Fernald | |authority=Fernald | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=variety |
| + | }} {{Treatment/ID/Synonym | ||
| + | |name=Athyrium americanum | ||
| + | |authority=(Butters) Maxon | ||
| + | |rank=species | ||
| + | }} {{Treatment/ID/Synonym | ||
|name=Athyrium distentifolium subsp. americanum | |name=Athyrium distentifolium subsp. americanum | ||
|authority=(Butters) Hultén | |authority=(Butters) Hultén | ||
| + | |rank=subspecies | ||
}} | }} | ||
|hierarchy=Dryopteridaceae;Athyrium;Athyrium distentifolium;Athyrium distentifolium var. americanum | |hierarchy=Dryopteridaceae;Athyrium;Athyrium distentifolium;Athyrium distentifolium var. americanum | ||
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|habitat=Wet talus slopes, rocky hillsides, alpine meadows | |habitat=Wet talus slopes, rocky hillsides, alpine meadows | ||
|elevation=600–3100 m | |elevation=600–3100 m | ||
| − | |distribution=Greenland;Alta.;B.C.;Nfld.;Que.;Yukon;Alaska;Calif.;Colo.;Idaho;Mont.;Nev.;Oreg.;Utah;Wash.;Wyo. | + | |distribution=Greenland;Alta.;B.C.;Nfld. and Labr. (Nfld.);Que.;Yukon;Alaska;Calif.;Colo.;Idaho;Mont.;Nev.;Oreg.;Utah;Wash.;Wyo. |
| − | |discussion=<p>Athyrium distentifolium var. americanum differs from var. distentifolium of Europe in its more finely dissected leaves with crenulate pinnule-segments, relatively broader pinnae with abruptly larger basal pinnules, and much more rudimentary indusia, if any. Japanese plants are more similar to var. americanum than to var. distentifolium, and they need further study.</p> | + | |discussion=<p><i>Athyrium distentifolium </i>var.<i> americanum</i> differs from var. distentifolium of Europe in its more finely dissected leaves with crenulate pinnule-segments, relatively broader pinnae with abruptly larger basal pinnules, and much more rudimentary indusia, if any. Japanese plants are more similar to <i></i>var.<i> americanum</i> than to var. distentifolium, and they need further study.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
| Line 46: | Line 53: | ||
-->{{#Taxon: | -->{{#Taxon: | ||
name=Athyrium distentifolium var. americanum | name=Athyrium distentifolium var. americanum | ||
| − | |||
|authority=(Butters) Boivin | |authority=(Butters) Boivin | ||
|rank=variety | |rank=variety | ||
|parent rank=species | |parent rank=species | ||
| − | |synonyms=Athyrium | + | |synonyms=Athyrium alpestri subsp. americanum;Athyrium alpestre var. gaspense;Athyrium americanum;Athyrium distentifolium subsp. americanum |
| − | |basionyms= | + | |basionyms=Athyrium alpestre var. americanum |
|family=Dryopteridaceae | |family=Dryopteridaceae | ||
|habitat=Wet talus slopes, rocky hillsides, alpine meadows | |habitat=Wet talus slopes, rocky hillsides, alpine meadows | ||
|elevation=600–3100 m | |elevation=600–3100 m | ||
| − | |distribution=Greenland;Alta.;B.C.;Nfld.;Que.;Yukon;Alaska;Calif.;Colo.;Idaho;Mont.;Nev.;Oreg.;Utah;Wash.;Wyo. | + | |distribution=Greenland;Alta.;B.C.;Nfld. and Labr. (Nfld.);Que.;Yukon;Alaska;Calif.;Colo.;Idaho;Mont.;Nev.;Oreg.;Utah;Wash.;Wyo. |
|reference=None | |reference=None | ||
|publication title=Naturaliste Canad. | |publication title=Naturaliste Canad. | ||
|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V2/V2_500.xml |
|genus=Athyrium | |genus=Athyrium | ||
|species=Athyrium distentifolium | |species=Athyrium distentifolium | ||
Latest revision as of 18:23, 1 March 2024
Stems ascending or short-creeping. Petiole straw-colored or red-brown distally, (7–)10–30 cm, base dark red-brown to black with 2 rows of teeth, swollen; scales at base brown to dark brown, lanceolate or broadly lanceolate, 13 × 3(–5) mm. Blade narrowly elliptic or lanceolate, 2–3-pinnate-pinnatifid, 15–55(–65) × 3–25 cm, moderately narrowed proximally, broadest below middle, apex acuminate. Pinnae short-stalked, narrowly deltate to deltate-oblong, apex acute. Pinnules deeply pinnatifid, segments oblong, crenulate. Rachis, costae, and costules with small, pale brown scales. Veins pinnate. Sori round to elliptic; indusia absent or very minute, scalelike. 2n = 80.
Habitat: Wet talus slopes, rocky hillsides, alpine meadows
Elevation: 600–3100 m
Distribution
Greenland, Alta., B.C., Nfld. and Labr. (Nfld.), Que., Yukon, Alaska, Calif., Colo., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.
Discussion
Athyrium distentifolium var. americanum differs from var. distentifolium of Europe in its more finely dissected leaves with crenulate pinnule-segments, relatively broader pinnae with abruptly larger basal pinnules, and much more rudimentary indusia, if any. Japanese plants are more similar to var. americanum than to var. distentifolium, and they need further study.
Selected References
None.
Lower Taxa
None.