Section I Angiosperm Trees
I.1 Avocado (Persea spp.)
I.2 Pineapple (Ananas comosus L. Merr.)
I.3 Crabapple (Malus spp.)
I.4 Quince (Cydonia oblonga Mill.)
I.5 Carambola (Averrhoa carambola L.)
I.6 Pistachio (Pistacia vera L.)
I.7 Walnut (Juglans spp.)
I.8 Hazelnut (Corylus avellana L.)
I.9 Date Palm (Phoenix dactylifera L.)
I.10 Oil Palm (Elaeis guineensis Jacq.)
I.11 Cacao (Theobroma cacao L.)
I.12 Rubber (Hevea brasiliensis Müll. Arg.)
I.13 Maple (Acer spp.)
I.14 Sweetgum (Liquidambar styraciflua L.)
I.15 Poplar (Populus spp.)
I.16 Birch (Betula spp.)
I.17 Chinese Tallow (Sapium sebiferum Roxb.)
I.18 Empress Tree (Paulownia tomentosa Steud)
I.19 Willows (Salix spp.)
I.20 Oaks (Quercus spp.)
I.21 Paper Mulberry (Broussonetia kazinoki Sieb.)
I.22 Holly (Ilex spp.)
I.23 Rhododendrons
I.24 Some Australian Ornamental Woody Species
I.25 Some Indian Ornamental Trees: Cassia fistula Linn., Poinciana regia (Boj.) and Jacaranda acutifolia auct.
Section II Gymnosperm Trees
II.1 Scots Pine (Pinus sylvestris L.)
II.2 Calabrian Pine (Pinus brutia Tenore)
II.3 Douglas-Fir [Pseudotsuga menziesii (Mirb.) Franco]
II.4 Redwood (Sequoia sempervirens)
II.5 Maidenhair Tree (Ginkgo biloba L.)
II.6 Cycads.