View source for Amelanchier spicata

{{Treatment/ID
|accepted_name=Amelanchier spicata
|accepted_authority=(Lamarck) K. Koch
|publications={{Treatment/Publication
|title=Dendrologie
|place=1: 182. 1869
|year=1869
}}
|common_names=Thicket shadbush;amélanchier en épis
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Crataegus spicata
|authority=Lamarck
|rank=species
|publication_title=in J. Lamarck et al., Encycl.
|publication_place=1: 84. 1783
}}
|synonyms={{Treatment/ID/Synonym
|name=Amelanchier arborea var. austromontana
|authority=(Ashe) H. E. Ahles
|rank=variety
}} {{Treatment/ID/Synonym
|name=A. austromontana
|authority=Ashe
|rank=species
}} {{Treatment/ID/Synonym
|name=A. lucida
|authority=(Fernald) Fernald
|rank=species
}} {{Treatment/ID/Synonym
|name=A. stolonifera
|authority=Wiegand
|rank=species
}}
|hierarchy=Rosaceae;Rosaceae subfam. Amygdaloideae;Rosaceae tribe Gillenieae;Amelanchier;Amelanchier spicata
|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 spicata]]</div></div>
|volume=Volume 9
|mention_page=page 648, 649, 654, 655, 657, 658, 659, 660, 661
|treatment_page=page 656
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> 0.3–1.2(–2) m. <b>Stems</b> 1–100, rhizomatous and in scattered colonies. <b>Leaves</b> half-unfolded; petiole (9.5–)11.5–16(–19) mm; blade oval to orbiculate, (22–)34–45(–61) × (13–)21–33(–52) mm, base subcordate or rounded, each margin (0–)3–9(–14) teeth on proximal 1/2 and (3 or)4–7(–11) teeth in distalmost cm, largest teeth less than 1 mm, apex acute to obtuse and sometimes mucronate, abaxial surface densely (moderately) hairy by flowering, surfaces glabrous or sparsely hairy later. <b>Inflorescences</b> (5 or)6–9(–14)-flowered, (11–)22–37(–52) mm. <b>Pedicels</b>: (0 or)1 subtended by a leaf, proximalmost 7–16(–22) mm. <b>Flowers</b>: sepals recurved after flowering, (1.7–)2–3(–4.4) mm; petals linear-oblong, (5.5–)6.5–9(–11) × (2–)2.7–4.4(–6.5) mm; stamens (10–)20; styles (4 or)5, (2.2–)3–3.8(–4.6) mm; ovary apex densely hairy (or glabrous). <b>Pomes</b> purple-black, 7–12 mm diam. <b>2n</b> = 3x, 4x.</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr–Jun; fruiting Jul–Aug.
|habitat=Summits and cliffs of low mountains, open woods, woodland clearings, rocky soil, crevices, shores, fields, roadsides, peaty, sandy, or gravelly and, typically, acidic soil
|elevation=0–1200 m
|distribution=N.B.;Nfld. and Labr. (Nfld.);N.S.;Ont.;P.E.I.;Que.;Ala.;Conn.;Ga.;Ill.;Iowa;Maine;Md.;Mass.;Mich.;Minn.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Pa.;R.I.;S.C.;Vt.;Va.;W.Va.;Wis.
|discussion=<p><i>Amelanchier spicata</i> is strongly rhizomatous and has finely toothed leaves and a glabrous or densely hairy ovary apex. The species is similar to <i>A. humilis</i> in habit and vestiture of the ovary apices; it differs in leaf teeth, style length, style fusion, and fruit diameter. <i>Amelanchier spicata</i> prefers acidic soil; <i>A. humilis</i> is a calciphile. How <i>A. spicata</i> and <i>A. nantucketensis</i> differ is discussed under the latter.</p><!--
--><p><i>Amelanchier</i> oblongifolia var. micropetala B. L. Robinson was transferred to <i>A. stolonifera</i> as forma micropetala (B. L. Robinson) Rehder. The type of this name has petals that fall within the size range of those of <i>A. nantucketensis</i>, and the authors consider it a synonym of the latter.</p><!--
--><p>P. M. Catling (2006) analyzed the morphology, including flowers, of <i>Amelanchier</i> lucida and concluded that it is distinct from <i>A. spicata</i> because of its shiny leaves and erect orientation of the sepals at flowering. <i>Amelanchier</i> lucida closely resembles <i>A. spicata</i> in overall habit, leaves, inflorescences, and fruits, and the authors have observed somewhat lustrous leaves in <i>A. spicata</i>. The authors, therefore, include A. lucida in <i>A. spicata</i>.</p><!--
--><p>Informally recognized, <i>Amelanchier</i> "maritima" is a well-studied microspecies restricted to the Atlantic Coast from Massachusetts to mid Maine. This microspecies resembles <i>A. spicata</i> in habit and mature leaf characters and differs significantly with longer inflorescences, more flowers per inflorescences, and longer and wider petals.</p><!--
--><p>M. L. Fernald (1950) and L. Cinq-Mars (1971) reported hybrids between <i>Amelanchier spicata</i> and <i>A. arborea</i>, <i>A. bartramiana</i>, <i>A. intermedia</i>, <i>A. laevis</i>, and <i>A. sanguinea</i>. Plants determined to be apomictic and attributed to this species by C. S. Campbell et al. (1987) were actually <i>A. nantucketensis</i>.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Amelanchier spicata
|authority=(Lamarck) K. Koch
|rank=species
|parent rank=genus
|synonyms=Amelanchier arborea var. austromontana;A. austromontana;A. lucida;A. stolonifera
|basionyms=Crataegus spicata
|family=Rosaceae
|phenology=Flowering Apr–Jun; fruiting Jul–Aug.
|habitat=Summits and cliffs of low mountains, open woods, woodland clearings, rocky soil, crevices, shores, fields, roadsides, peaty, sandy, or gravelly and, typically, acidic soil
|elevation=0–1200 m
|distribution=N.B.;Nfld. and Labr. (Nfld.);N.S.;Ont.;P.E.I.;Que.;Ala.;Conn.;Ga.;Ill.;Iowa;Maine;Md.;Mass.;Mich.;Minn.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Pa.;R.I.;S.C.;Vt.;Va.;W.Va.;Wis.
|reference=None
|publication title=Dendrologie
|publication year=1869
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V9/V9_1128.xml
|subfamily=Rosaceae subfam. Amygdaloideae
|tribe=Rosaceae tribe Gillenieae
|genus=Amelanchier
|species=Amelanchier spicata
}}<!--

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