Injections of oxy·tetra·cycline HCl (“H-C-L”) protect these plants from being affected by phytoplasma-induced (“FYE-toe-plaz-muh-induced”) lethal yellowing. These plants’ apical growth only occurs at a meristem-rich core above the crownshaft called the “heart.” They’re not ferns, but dried-out tissue left over after these plants have shedded their leaf-like structures is often retooled as pseudobark. Since these (-5[1])trees cannot form cambium, they are the only trees not to display growth (10[1])rings. The tallest non-bamboo (*) monocot plants comprise mainly of these kinds of (-5[1])trees. The “de mer” species of these trees is responsible for generating the largest plant seeds and can be found in the Seychelles (“say-SHELZ”). For 10 points, name these fronded tropical (10[1])trees noted for their production of dates and coconuts. (10[2]) ■END■