| | UNITED STATES: Missouri:: St. Louis Co., 2021. |
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Transverse section of rachis between fifth and sixth pinna from base of lamina. Note two adaxial wings. These are subtended by a sheath of sclerenchyma. Photo taken with polarizers crossed.
| | Copyright © 2021 by Robbin Moran
(contact: kcn2[at]cornell.edu)
[ref. DOL51107]
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