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rachis
(redirected from rachides)

    Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.01 sec.
rachis [′rā·kəs]
(anatomy)
The vertebral column.
(biology)
An axial structure such as the axis of an inflorescence, the central petiole of a compound leaf, or the central cord of an ovary in Nematoda.
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large fronds with lax appearance, thin, flexuous stipes and rachides, wide-angled pinnae [Fig.
How Paleozoic vines and lianas got off the ground: on scrambling and ... by Krings, Michael; Kerp, Hans; Taylor, Thomas N.; Taylor, Edith L. / The Botanical Review
Precision degaging was done under a stereomicroscope to probe primary rachides for secondary-pinna attachment, ultimate rachides for foliar attachment, and to expose ramifications of asymmetrical branching (e.
The "medullosalean forest" at the Lloyd Cove Seam (Pennsylvanian, ... by Zodrow, Erwin L. / Atlantic Geology
Both characters 43 and 44 are extensions of the morphological diversity displayed by the vascular tissues of frond rachides and are encompassed by character 24 of Pryer et al.
FOSSILS AND FERN PHYLOGENY by The Botanical Review
 
 
 
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