When considering shade trees for landscape use, such staple native species as maples, oaks, elms and hornbeams come to mind. Another serviceable choice is the American linden (Tilia americana). Also ...

Acid phosphatases are localized on the internal strands of sieve-tube members in the secondary phloem of Tilia americana. Companion cells and certain strand parenchyma cells associated with sieve-tube ...

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