Ulman, Paul 15
=Ulmus= =137=
=alata= =142=, 144, 299
=americana= =140=, 141, 298, 300
=fulva= =138=, 139, 209
=Thomasi= =142=, 143, 299
=Viburnum prunifolium= =288=, 289, 299
=rufidulum= =289=
Walnut 52, 54, 56
black 54, 57, 297, 300
white 54, 55
Trees of Indiana First Revised Edition (Publication No. 13, Department of Conservation, State of Indiana) · 第 261 / 265 题