Difference between revisions of "Botrychium sect. Sceptridium"

Sect. Sceptridium (Lyon) R. T. Clausen

Mem. Torrey Bot. Club 19(2): 24. 1938.

Basionym: Undefined sect. Sceptridium Lyon
Treatment appears in FNA Volume 2.
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--><span class="statement" id="st-undefined" data-properties=""><b>Roots </b>usually 10 or less, blackish, 1–4 mm diam. 1cm from base. <b>Plants</b> over 12 cm. <b>Common</b> stalk lacking idioblasts. <b>Trophophore</b> erect, long-stalked, arising from basal portion of common stalk near ground level; blade usually 1 per plant, appearing in spring, dying the following spring, present during winter, deltate, 2–4-pinnate, mostly 5–25 cm wide when mature, herbaceous or leathery. <b>Leaf</b> primordia densely hairy, hairs 1.5–2mm. <b>Leaf</b> sheath closed. <b>Pinna</b> divisions reduced in size to tip (except B. biternatum, B. dissectum, and B. oneidense with undivided tips larger than lateral pinnae). <b>First</b> pinnule on basal pinnae usually borne basiscopically. <b>Sporophore</b> long-stalked, arising from basal portion of common stalk near ground level, commonly absent or represented by hairy rudiment due to abortion, or falling off, stalks and rachis only slightly flattened, not fleshy, 0.5–0.8 mm wide. <b>x</b> =45.</span><!--
+
--><span class="statement" id="st-undefined" data-properties=""><b>Roots </b>usually 10 or less, blackish, 1–4 mm diam. 1cm from base. <b>Plants</b> over 12 cm. <b>Common</b> stalk lacking idioblasts. <b>Trophophore</b> erect, long-stalked, arising from basal portion of common stalk near ground level; blade usually 1 per plant, appearing in spring, dying the following spring, present during winter, deltate, 2–4-pinnate, mostly 5–25 cm wide when mature, herbaceous or leathery. <b>Leaf</b> primordia densely hairy, hairs 1.5–2mm. <b>Leaf</b> sheath closed. <b>Pinna</b> divisions reduced in size to tip (except <i>B. biternatum</i>, <i>B. dissectum</i>, and <i>B. oneidense</i> with undivided tips larger than lateral pinnae). <b>First</b> pinnule on basal pinnae usually borne basiscopically. <b>Sporophore</b> long-stalked, arising from basal portion of common stalk near ground level, commonly absent or represented by hairy rudiment due to abortion, or falling off, stalks and rachis only slightly flattened, not fleshy, 0.5–0.8 mm wide. <b>x</b> =45.</span><!--
  
 
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|publication year=1938
 
|publication year=1938
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_298.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V2/V2_298.xml
 
|genus=Botrychium
 
|genus=Botrychium
 
|subgenus=Botrychium subg. Sceptridium
 
|subgenus=Botrychium subg. Sceptridium

Revision as of 16:46, 18 September 2019

Roots usually 10 or less, blackish, 1–4 mm diam. 1cm from base. Plants over 12 cm. Common stalk lacking idioblasts. Trophophore erect, long-stalked, arising from basal portion of common stalk near ground level; blade usually 1 per plant, appearing in spring, dying the following spring, present during winter, deltate, 2–4-pinnate, mostly 5–25 cm wide when mature, herbaceous or leathery. Leaf primordia densely hairy, hairs 1.5–2mm. Leaf sheath closed. Pinna divisions reduced in size to tip (except B. biternatum, B. dissectum, and B. oneidense with undivided tips larger than lateral pinnae). First pinnule on basal pinnae usually borne basiscopically. Sporophore long-stalked, arising from basal portion of common stalk near ground level, commonly absent or represented by hairy rudiment due to abortion, or falling off, stalks and rachis only slightly flattened, not fleshy, 0.5–0.8 mm wide. x =45.

Discussion

Species 13 (6 in the flora).

Selected References

None.