Chlorella vannielii is a possible candidate Hyperaccumulator for Beryllium.
Beryllium hyperaccumulation does not appear to be a well researched subject.
Absorption and Toxicity of Beryllium and Lithium in Chlorella vannielii Shihira KraussEdward P. Karlander and Robert W. Krauss
Chesapeake Science
Vol. 13, No. 4 (Dec., 1972), pp. 245-253