View source for Amelanchier gaspensis

{{Treatment/ID
|accepted_name=Amelanchier gaspensis
|accepted_authority=(Wiegand) Fernald & Weatherby
|publications={{Treatment/Publication
|title=Rhodora
|place=33: 235. 1931
|year=1931
}}
|common_names=Gaspé shadbush;amélanchier de Gaspésie
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Amelanchier sanguinea var. gaspensis
|authority=Wiegand
|rank=variety
|publication_title=Rhodora
|publication_place=14: 139. 1912
}}
|synonyms=
|hierarchy=Rosaceae;Rosaceae subfam. Amygdaloideae;Rosaceae tribe Gillenieae;Amelanchier;Amelanchier gaspensis
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Rosaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Rosaceae subfam. Amygdaloideae]]</div><div class="higher-taxon"><small>tribe</small>[[Rosaceae tribe Gillenieae]]</div><div class="higher-taxon"><small>genus</small>[[Amelanchier]]</div><div class="higher-taxon"><small>species</small>[[Amelanchier gaspensis]]</div></div>
|volume=Volume 9
|mention_page=page 650, 658
|treatment_page=page 654
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> 0.5–6 m. <b>Stems</b> 1–40, suckering and densely colonial. <b>Leaves</b> mostly unfolded; petiole (8–)12.8–20.7(–25) mm; blade broadly oblong to suborbiculate, (32–)41–57(–63) × (26–)30–40(–45) mm, base cordate or rounded, each margin with (0–)3–9(–12) teeth on proximal 1/2 and 3–5 teeth in distalmost cm, largest teeth more than 1 mm, apex rounded to subtruncate or short-pointed, abaxial surface moderately (sparsely or densely) hairy by flowering, surfaces sparsely hairy (or glabrous) later. <b>Inflorescences</b> (3–)5–10(–12)-flowered, (20–)35–50(–55) mm. <b>Pedicels</b>: 1 or 2 subtended by a leaf, proximalmost (9–)12–19(–26) mm. <b>Flowers</b>: sepals recurved after flowering, (2.6–)3–4.5(–5.9) mm; petals oblanceolate, (8–)9.7–13.5(–15) × (3–)4.1–6.2(–7) mm; stamens (17–)18–20(–21); styles (4 or)5, (2.3–)2.6–3.5(–4.1) mm; ovary apex densely hairy. <b>Pomes</b> blackish purple, 10 mm diam. <b>2n</b> = 4x.</span><!--

-->{{Treatment/Body
|phenology=Flowering May–Jun; fruiting Jul–Sep.
|habitat=Calcareous shores, gravel beaches, cliffs, ledges, alluvial woods, roadsides
|elevation=0–300 m
|distribution=Que.
|discussion=<p>K. M. Wiegand (1912) considered <i>Amelanchier gaspensis</i> to be perplexing because it varies much in stature and habit, as well as in leaf outline and dentition. The leaves suggest an intermediate condition between <i>A. sanguinea</i> and <i>A. humilis</i>, especially in the venation.</p><!--
--><p>G. N. Jones (1946) considered the range of <i>Amelanchier gaspensis</i> to extend off the Gaspé Peninsula in Quebec and into Ontario and Michigan; he listed 13 specimens away from the Gaspé, and uncertainty exists about the identity of some of these specimens. For some specimens, Jones first annotated them as <i>A. spicata</i> and later changed his annotation to <i>A. gaspensis</i>. Wiegand annotated one of the specimens as “<i>A. humilis</i> x?,” another specimen as “<i>A. humilis</i>,” and another as “A. florida” (<i>A. alnifolia </i>var.<i> semiintegrifolia</i>). E. G. Voss (1972–1996, vol. 2) included <i>A. gaspensis</i> in <i>A. sanguinea</i>. M. L. Fernald (1950) reported <i>A. gaspensis</i> from northern Maine; specimens from there assigned to <i>A. gaspensis</i> do not match it in all respects. The occurrence of <i>A. gaspensis</i> away from the Gaspé remains questionable.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Amelanchier gaspensis
|authority=(Wiegand) Fernald & Weatherby
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Amelanchier sanguinea var. gaspensis
|family=Rosaceae
|phenology=Flowering May–Jun; fruiting Jul–Sep.
|habitat=Calcareous shores, gravel beaches, cliffs, ledges, alluvial woods, roadsides
|elevation=0–300 m
|distribution=Que.
|reference=None
|publication title=Rhodora
|publication year=1931
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V9/V9_1124.xml
|subfamily=Rosaceae subfam. Amygdaloideae
|tribe=Rosaceae tribe Gillenieae
|genus=Amelanchier
|species=Amelanchier gaspensis
}}<!--

-->[[Category:Treatment]][[Category:Amelanchier]]