Difference between revisions of "Delphinium subsect. Echinata"

(Ewan) N. I. Malyutin

Bot. Zhurn. (Moscow & Leningrad) 72: 689. 1987.

Basionym: Delphinium series Echinatae Ewan
Treatment appears in FNA Volume 3.
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--><span class="statement" id="st-undefined" data-properties=""><b>Roots </b>3-9(-20)-branched, 3-8(-30) cm, fascicled, dry to fleshy, ± succulent, thin threadlike segments restricted to termini of major segment; buds minute. <b>Stems</b> 1(-2) per root, unbranched, elongation delayed 2-10 weeks after leaf initiation; base usually not narrowed, firmly attached to root; proximal internodes much shorter than those of midstem. <b>Leaves</b> basal and cauline, largest near base of stem, others often abruptly smaller on distal portion of stem; basal petioles spreading, cauline petioles ascending; blades of basal leaves more rounded and with fewer, wider lobes than cauline leaves. <b>Inflorescences</b> usually with 2-11 flowers per 5 cm, dense to open, cylindric, spurs rarely intersecting rachis; pedicel ascending, usually less than 2 cm, rachis to midpedicel angle more than 30°; bracts markedly smaller and fewer lobed than leaves. <b>Fruits</b> erect. <b>Seeds</b> ± rectangular, 1.5-2.5 × 0.8-1.5 mm, not ringed at proximal end, ± wing-margined; seed coats without wavy ridges (sometimes with prism-shaped structures in D. hansenii), cells ± brick-shaped, cell margins straight or undulate.</span><!--
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--><span class="statement" id="st-undefined" data-properties=""><b>Roots </b>3-9(-20)-branched, 3-8(-30) cm, fascicled, dry to fleshy, ± succulent, thin threadlike segments restricted to termini of major segment; buds minute. <b>Stems</b> 1(-2) per root, unbranched, elongation delayed 2-10 weeks after leaf initiation; base usually not narrowed, firmly attached to root; proximal internodes much shorter than those of midstem. <b>Leaves</b> basal and cauline, largest near base of stem, others often abruptly smaller on distal portion of stem; basal petioles spreading, cauline petioles ascending; blades of basal leaves more rounded and with fewer, wider lobes than cauline leaves. <b>Inflorescences</b> usually with 2-11 flowers per 5 cm, dense to open, cylindric, spurs rarely intersecting rachis; pedicel ascending, usually less than 2 cm, rachis to midpedicel angle more than 30°; bracts markedly smaller and fewer lobed than leaves. <b>Fruits</b> erect. <b>Seeds</b> ± rectangular, 1.5-2.5 × 0.8-1.5 mm, not ringed at proximal end, ± wing-margined; seed coats without wavy ridges (sometimes with prism-shaped structures in <i>D. hansenii</i>), cells ± brick-shaped, cell margins straight or undulate.</span><!--
  
 
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|publication year=1987
 
|publication year=1987
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V3/V3_824.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V3/V3_824.xml
 
|genus=Delphinium
 
|genus=Delphinium
 
|section=Delphinium sect. Diedropetala
 
|section=Delphinium sect. Diedropetala

Revision as of 18:20, 18 September 2019

Roots 3-9(-20)-branched, 3-8(-30) cm, fascicled, dry to fleshy, ± succulent, thin threadlike segments restricted to termini of major segment; buds minute. Stems 1(-2) per root, unbranched, elongation delayed 2-10 weeks after leaf initiation; base usually not narrowed, firmly attached to root; proximal internodes much shorter than those of midstem. Leaves basal and cauline, largest near base of stem, others often abruptly smaller on distal portion of stem; basal petioles spreading, cauline petioles ascending; blades of basal leaves more rounded and with fewer, wider lobes than cauline leaves. Inflorescences usually with 2-11 flowers per 5 cm, dense to open, cylindric, spurs rarely intersecting rachis; pedicel ascending, usually less than 2 cm, rachis to midpedicel angle more than 30°; bracts markedly smaller and fewer lobed than leaves. Fruits erect. Seeds ± rectangular, 1.5-2.5 × 0.8-1.5 mm, not ringed at proximal end, ± wing-margined; seed coats without wavy ridges (sometimes with prism-shaped structures in D. hansenii), cells ± brick-shaped, cell margins straight or undulate.

Discussion

Species 4 (4 in the flora).

Selected References

None.

Key

1 Proximal petioles glabrous to puberulent with short (less than 0.5 mm) appressed and/or arched hairs. > 2
1 Proximal petioles with long (more than 0.5 mm), straight spreading hairs. > 3
2 Sepal color and/or stem pubescence different from that of other individuals with which they occur; stem base puberulent with short arched hairs. Delphinium hesperium subsp. pallescens
2 Sepal color and stem pubescence similar to that of other individuals with which they occur; stem base glabrous to pubescent with short straight hairs. Delphinium hesperium
3 Seeds echinate, appearing fuzzy to naked eye; lateral sepals 13 mm or shorter; flowers usually more than 12 per main inflorescence branch. Delphinium hansenii
3 Seeds not echinate, appearing ± smooth to naked eye; lateral sepals 10 mm or longer; flowers usually fewer than 12 per main inflorescence branch. > 4
4 Stem base longitudinally ridged. Delphinium hesperium
4 Stem base not longitudinally ridged. > 5
5 Margins of lower petals ciliate; bracteoles usually 7 mm or less from sepals; sepal spur straight. Delphinium variegatum
5 Margins of lower petals glabrous; bracteoles usually 7 mm or more from sepals; sepal spur often downcurved for more than 3 mm at apex. Delphinium hutchinsoniae