Pinus Cembroides, Pinceana, Nelsonii 38, 40 XIII Group Gerardianae 40 Pinus Bungeana, Gerardiana 40, 42 XIV Group Balfourianae 42 Pinus Balfouriana, Aristata 42, 44 XV Section Diploxylon 44 Subsection Parapinaster 44 Group Leiophyllae 44 Pinus Leiophylla, Lumholtzii 44, 46 XVI Group Longifoliae 46 Pinus Longifolia, Canariensis 46, 48 XVII Group Pineae 48 Pinus Pinea 48 XVIII Subsection Pinaster 50 Group Laricionea 51 Pinus Resinosa, Tropicalis 51, 52 XIX Massoniana, Densiflora 52 XX Sylvestris, Montana 54 XXI Luchuensis, Thunbergii, Nigra 56, 58 XXII Merkusii, Sinensis, Insularis 58, 60 XXIII Group Australes 62 Pinus Pseudostrobus 62 XXIV Montezumae 64 XXV Ponderosa 66 XXVI Teocote, Lawsonii 68 XXVII Occidentalis, Palustris 70 XXVIII Caribaea 70 XXIX Taeda, Glabra, Echinata 72, 74 XXX Group Insignes 76 Pinus Pringlei, Oocarpa 76, 78 XXXI Halepensis, Pinaster 78, 80 XXXII Virginiana, Clausa 80 XXXIII Rigida, Serotina, Pungens 82, 84 XXXIV Banksiana, Contorta 84 XXXV Greggii, Patula 86 XXXVI Muricata, Attenuata, Radiata 86, 88 XXXVII Group Macrocarpae 90 Pinus Torreyana, Sabiniana 90 XXXVIII Coulteri 93 XXXIX INDEX 94 INTRODUCTION