Paracembra-Subsection, 36 Parapinaster-Subsection, 44 Peduncle of cone, 8 Persistence of leaf, 4 Persistent cone, 8 Phyllotaxis, of cone, 12 definite, 12 indefinite, 12 Pinaster-Subsection, 50 Pineae-Group, 48 Pinus, 24 Pinus abasica Carr. = halepensis, 78 alba-canadensis Prov. = strobus, 36 albicaulis Engelm., 27 Altamirani Shaw = Lawsonii, 68 apacheca Lemm. = ponderosa, 66 apulcensis Lindl. = pseudostrobus, 62 arabica Sieb. = halepensis, 78 aristata Engelm., 44 arizonica Engelm. = ponderosa, 66 Armandi Franch., 30 armena Koch = sylvestris, 54 attenuata Lemm., 88 australis Michx. = palustris, 70 austriaca Höss = nigra, 58 ayacahuite Ehrenb., 30 bahamensis Grise. = caribaea, 70 Balfouriana Balf., 42 Balfouriana Wats. = aristata, 44 Banksiana Lamb., 84 Beardsleyi Murr. = ponderosa, 66 Benthamiana Hartw. = ponderosa, 66 Bolanderi Parl. = contorta, 84 Bonapartea Roezl = ayacahuite, 30 Boursieri Carr. = contorta, 84 brachyptera Engelm. = ponderosa, 66 brutia Ten. = halepensis, 78 Bungeana Zucc., 40 californica Hartw. = attenuata, 88 canaliculata Miq. = Massoniana, 52 canariensis Smith, 48 caribaea Mor., 70 carica Don = halepensis, 78 cembra L., 27 cembra Thunb. = parviflora, 32 cembroides Gord. = Pinceana, 38 cembroides Newb. = albicaulis, 27 cembroides Zucc., 38 chihuahuana Engelm. = leiophylla, 44 clausa Vasey, 80 contorta Dougl., 84 coronans Litv. = cembra, 27 Coulteri D. Don, 93 Craigana Murr. = ponderosa, 66 cubensis Grise. = occidentalis, 70 cubensis Sarg. = caribaea, 70 dalmatica Vis. = nigra, 58 deflexa Torr. = ponderosa, 66 densata Mast. = sinensis, 60 densiflora Sieb. & Zucc., 52 Devoniana Lindl. = Montezumae, 64 divaricata Dum. Cours. = Banksiana, 84 Donnell-Smithii Mast. = Montezumae, 64 echinata Mill., 74 Edgariana Hartw. = muricata, 86 edulis Engelm. = cembroides, 38 Ehrenbergii Endl. = Montezumae, 64 eldarica Medw. = halepensis, 78 Elliottii Engelm. = caribaea, 70 Engelmanni Carr. = ponderosa, 66 escarena Riss. = pinaster, 80 excelsa Hook. = peuce, 34 excelsa Wall., 34 filifolia Lindl. = Montezumae, 64 Finlaysoniana Wall. = Merkusii, 58 flexilis James, 28 flexilis Balf. = albicaulis, 27 formosana Hay. = parviflora, 32 Fremontiana Endl. = cembroides, 38 Frieseana Wich. = sylvestris, 54 funebris Kom. = sinensis, 60 Gerardiana Wall., 42 glabra Walt., 72 Gordoniana Hartw. = Montezumae, 64 Greggii Engelm., 86 Grenvilleae Gord. = Montezumae, 64 Griffithii McClell. = excelsa, 34 halepensis Bieb. = nigra, 58 halepensis Mill., 78 Hamiltonii Ten. = pinaster, 80 Hartwegii Lindl. = Montezumae, 64 Heldreichii Chr. = nigra, 58 Henryi Mast. = sinensis, 60 heterophylla Small = taeda, 72