familyRosaceae
subfamilyRosaceae subfam. Amygdaloideae
genusSorbus
subgenusSorbus subg. Sorbus
sectionSorbus sect. Tianshanicae
speciesSorbus sitchensis
varietySorbus sitchensis var. grayi
Difference between revisions of "Sorbus sitchensis var. grayi"
in C. L. Hitchcock et al., Vasc. Pl. Pacif. N.W. 3: 189. 1961.
Common names: Dwarf or western mountain ashE
Endemic
Basionym: Sorbus sambucifolia var. grayi Wenzig Bot. Centralbl. 35: 342. 1888
Synonyms: Pyrus occidentalis S. Watson S. occidentalis (S. Watson) Greene S. sitchensis subsp. grayi (Wenzig) Calder & Roy L. Taylor
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{{Treatment/ID | {{Treatment/ID | ||
|accepted_name=Sorbus sitchensis var. grayi | |accepted_name=Sorbus sitchensis var. grayi | ||
| − | |accepted_authority=(Wenzig) C. L. Hitchcock | + | |accepted_authority=(Wenzig) C. L. Hitchcock |
|publications={{Treatment/Publication | |publications={{Treatment/Publication | ||
|title=in C. L. Hitchcock et al., Vasc. Pl. Pacif. N.W. | |title=in C. L. Hitchcock et al., Vasc. Pl. Pacif. N.W. | ||
| Line 8: | Line 8: | ||
}} | }} | ||
|common_names=Dwarf or western mountain ashE | |common_names=Dwarf or western mountain ashE | ||
| − | |basionyms={{Treatment/ID/ | + | |special_status={{Treatment/ID/Special_status |
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
| + | |basionyms={{Treatment/ID/Basionym | ||
|name=Sorbus sambucifolia var. grayi | |name=Sorbus sambucifolia var. grayi | ||
|authority=Wenzig | |authority=Wenzig | ||
| + | |rank=variety | ||
| + | |publication_title=Bot. Centralbl. | ||
| + | |publication_place=35: 342. 1888 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Pyrus occidentalis | |name=Pyrus occidentalis | ||
|authority=S. Watson | |authority=S. Watson | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=species |
| + | }} {{Treatment/ID/Synonym | ||
|name=S. occidentalis | |name=S. occidentalis | ||
|authority=(S. Watson) Greene | |authority=(S. Watson) Greene | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=species |
| + | }} {{Treatment/ID/Synonym | ||
|name=S. sitchensis subsp. grayi | |name=S. sitchensis subsp. grayi | ||
|authority=(Wenzig) Calder & Roy L. Taylor | |authority=(Wenzig) Calder & Roy L. Taylor | ||
| + | |rank=subspecies | ||
}} | }} | ||
|hierarchy=Rosaceae;Rosaceae subfam. Amygdaloideae;Rosaceae tribe Gillenieae;Sorbus;Sorbus subg. Sorbus;Sorbus sect. Tianshanicae;Sorbus sitchensis;Sorbus sitchensis var. grayi | |hierarchy=Rosaceae;Rosaceae subfam. Amygdaloideae;Rosaceae tribe Gillenieae;Sorbus;Sorbus subg. Sorbus;Sorbus sect. Tianshanicae;Sorbus sitchensis;Sorbus sitchensis var. grayi | ||
| Line 36: | Line 46: | ||
|elevation=0–3000 m | |elevation=0–3000 m | ||
|distribution=B.C.;Alaska;Calif.;Oreg.;Wash. | |distribution=B.C.;Alaska;Calif.;Oreg.;Wash. | ||
| − | |discussion=<p>Variety grayi often has smaller leaflets than var. sitchensis, and plants near timberline frequently are dwarfed by exposure. It is usually found at higher elevations or on boggier soils than var. sitchensis. The rank is controversial; it was treated by G. N. Jones (1939) and H. A. McAllister (2005) as a species (Sorbus occidentalis). The only reliable character to segregate it is the extent of toothing on the leaf margins, which is variable on some individuals, with nearly entire leaflets on shoots exposed to sun and with leaflet margins to 50% toothed on shaded basal shoots.</p><!-- | + | |discussion=<p>Variety grayi often has smaller leaflets than <i></i>var.<i> sitchensis</i>, and plants near timberline frequently are dwarfed by exposure. It is usually found at higher elevations or on boggier soils than <i></i>var.<i> sitchensis</i>. The rank is controversial; it was treated by G. N. Jones (1939) and H. A. McAllister (2005) as a species (<i>Sorbus</i> occidentalis). The only reliable character to segregate it is the extent of toothing on the leaf margins, which is variable on some individuals, with nearly entire leaflets on shoots exposed to sun and with leaflet margins to 50% toothed on shaded basal shoots.</p><!-- |
| − | --><p>Variety grayi occurs south to Crater Lake National Park in Klamath County, Oregon (P. F. Zika 2003). Most collections and reports from California (T. J. Rosatti 1993) were misidentified, except for a single sheet from Siskiyou County in the Klamath Mountains (R. White 207, HSC). One of the synonyms, Pyrus occidentalis, was described with several syntypes from California, which are not var. grayi but Sorbus californica. G. N. Jones (1939, p. 40) effectively lectotypified P. occidentalis with a syntype from the Canadian border (Lyall s.n., GH), which has nearly entire leaflets and is var. grayi.</p> | + | --><p>Variety grayi occurs south to Crater Lake National Park in Klamath County, Oregon (P. F. Zika 2003). Most collections and reports from California (T. J. Rosatti 1993) were misidentified, except for a single sheet from Siskiyou County in the Klamath Mountains (R. White 207, HSC). One of the synonyms, <i>Pyrus</i> occidentalis, was described with several syntypes from California, which are not <i></i>var.<i> grayi</i> but <i>Sorbus californica</i>. G. N. Jones (1939, p. 40) effectively lectotypified <i>P. occidentalis</i> with a syntype from the Canadian border (Lyall s.n., GH), which has nearly entire leaflets and is <i></i>var.<i> grayi</i>.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Sorbus sitchensis var. grayi | name=Sorbus sitchensis var. grayi | ||
| − | + | |authority=(Wenzig) C. L. Hitchcock | |
| − | |authority=(Wenzig) C. L. Hitchcock | ||
|rank=variety | |rank=variety | ||
|parent rank=species | |parent rank=species | ||
| Line 60: | Line 69: | ||
|publication title=in C. L. Hitchcock et al., Vasc. Pl. Pacif. N.W. | |publication title=in C. L. Hitchcock et al., Vasc. Pl. Pacif. N.W. | ||
|publication year=1961 | |publication year=1961 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V9/V9_750.xml |
|subfamily=Rosaceae subfam. Amygdaloideae | |subfamily=Rosaceae subfam. Amygdaloideae | ||
|tribe=Rosaceae tribe Gillenieae | |tribe=Rosaceae tribe Gillenieae | ||
Latest revision as of 23:59, 5 November 2020
Leaflets: l/w ratio 1.9–3.5, margins entire or toothed apically, serrate for less than 1/2 their length, serrations fine to coarse. Flowers: petals white or pinkish, white or pink in bud, claw villous; styles (2–)2.4–3.2 mm. 2n = 34.
Phenology: Flowering spring (late summer); fruiting fall.
Habitat: Mountain slopes, forest edges, rockslides, edges of avalanche tracks, peatlands, muskegs, meadows
Elevation: 0–3000 m
Distribution
B.C., Alaska, Calif., Oreg., Wash.
Discussion
Variety grayi often has smaller leaflets than var. sitchensis, and plants near timberline frequently are dwarfed by exposure. It is usually found at higher elevations or on boggier soils than var. sitchensis. The rank is controversial; it was treated by G. N. Jones (1939) and H. A. McAllister (2005) as a species (Sorbus occidentalis). The only reliable character to segregate it is the extent of toothing on the leaf margins, which is variable on some individuals, with nearly entire leaflets on shoots exposed to sun and with leaflet margins to 50% toothed on shaded basal shoots.
Variety grayi occurs south to Crater Lake National Park in Klamath County, Oregon (P. F. Zika 2003). Most collections and reports from California (T. J. Rosatti 1993) were misidentified, except for a single sheet from Siskiyou County in the Klamath Mountains (R. White 207, HSC). One of the synonyms, Pyrus occidentalis, was described with several syntypes from California, which are not var. grayi but Sorbus californica. G. N. Jones (1939, p. 40) effectively lectotypified P. occidentalis with a syntype from the Canadian border (Lyall s.n., GH), which has nearly entire leaflets and is var. grayi.
Selected References
None.
Lower Taxa
None.