(G. ) I.M.Johnst., I.M.Johnst., (M. ), I.M.Johnst., (G. ), I.M.Johnst., (M. ), I.M.Johnst., (G. ), and I.M.Johnst., (M. ), ?Contr. Gray Herb. 85: 159. 1929?, 1929.

(G. ) I.M.Johnst., I.M.Johnst.,, I.M.Johnst., (P. ), I.M.Johnst., (P. ), I.M.Johnst., (G. ), I.M.Johnst.,, I.M.Johnst., (P. ), I.M.Johnst., (P. ), I.M.Johnst., (G. ), I.M.Johnst.,, I.M.Johnst., (P. ), and I.M.Johnst., (P. ), ?Contr. Gray Herb. 85: 110. 1929?, 1929.