Multiple choice The sclereids found in the sub-epidermal covering of legume seeds are osterosclereids macrosclereids brachysclereids astrosclereids trichosclereids Reveal answer Fill a bubble to check yourself A Correct answer Explanation Osterosclereids (also called bone or hour-glass cells) are columnar cells similar to macrosclereids, except they are enlarged at the ends, making them bone-shaped. These are branched as star.