Naturalisation in Extra-Tropical Countries. 637 



IMPORTANT CULTURAL PLANTS continued. 

 citriodora, E. crebra, E. Globulus, E. gomphocephala, E. gouiocalyx, 



E. Leucoxylon, E. melliodora, E. rostrata, E. saligna, E. siderophloia, 

 Ficus Carica, F. elastica, Fraxinus Americana, F. excelsior, F. Ornus, 



F. quadrangulata, Garcinia Xanthochymus, Ginkgo biloba, Guevina 

 Aveilana, Haematoxylon Campechianum, Hevea Guianensis, Hoveuia 

 dulcis, Hymenoea Courbaril, Illippe sericea, Jubaea spectabilis, Juglans 

 cinerea, J. nigra, J. regia, Juniperus Bermudiana, J. Chinensis, J. dru- 

 pacea, J. Virginiana, Liquidambar Altingia, L. orientalis, L. styraciflua, 

 Macadamia ternifolia, Mangifera Indica, Mimusops Elengi, M. Manil- 

 kara, Morus nigra, M. rubra, Nephelium Litchi, Palaquium Gutta, P. 

 Krantzianum, Persea gratissima, Phoenix dactylifera, Pimenta com- 

 munis, Pinus Abies, P. amabilis, P. australis, P. balsamea, P. Cedrus, 

 P. cembroides, P. Coulteri, P. Douglasii, P. edulis, P. excelsa, 

 P. Fraseri, P. Gerardiana, P. Halepensis, P. Hartwegii, P. Kaemp- 

 feri, P. Lambertiana, P. Laricio, P. Larix, P. longifolia, P. mitis, P. 

 monticola, P. nigra, P. Picea, P. Pinaster, P. Pinea, P. ponderosa, P. 

 radiata, P. rigida, P. Sabiniana, P. silvestris, P. Sitkensis, P. Strobus, 

 P. Webbiana, Pistacia vera, Populus alba, P. monilifera, P. nigra, 

 Quercus -ZEgilops, Q. alba, Qnercus Ballota, Q. Cerris, Q. chrysolepis, 

 Q. coccinea, Q. Douglasii, Q. Garryana, Q. Ilex, Q. incana, Q. lyrata, 

 Q. macrocarpa, Q. macrolepis, Q. Pliellos, Q. Robur, Q. serrata, Q. 

 Skinneri, Q. Suber, Q. virens, Sequoia sempervirens, S. Wellingtonia, 

 Spondias dulcis, Swietenia Mahagoni, Taxodium distichum, Thuya 

 gigantea, Tilia Americana, T. Europsea, Ulmus campestris, U. fulva, 

 U. racemosa. 



All these plants fit for extra- tropical countries, but many only for 

 particular climatic regions ; for information in respect to the latter 

 the geographic index is to some extent indicative. 



Y. 



IMPORTANT CULTURAL PLANTS ADAPTED ONLY FOR 

 FROSTLESS REGIONS. 



[Contained within the following genera.] 



Acanthophoenix, Acanthosicyos, Achras, Acrocomia, -ZEschynomene, 

 Albizzia, Aleurites, Alibertia, Aloexylon, Alstonia, Amorphophallus, 

 Ananas, Andropogon, Anona, Aponogeton, Aquilaria, Arenga, Arto- 

 carpus, Aruudinaria, Arundinella, Atalantia, Averrhoa, Bactris, 

 Bacularia, Baloghia, Balsamodendron, Bambusa, Basella, Beesha, 

 Benincasa, Boehmeria, Borassue, Boswellia, Brahea, Bursera, Butea, 

 Caesalpinia, Cajanus, Calamus, Calyptranthes, Calyptronoma, Camellia, 

 Canavalia, Capsicum, Carica, Carludovica, Caryota, Casimiroa, Cassia, 

 Castilloa, Catha, Cedrela, Cephaelis, Cereus, Ceroxylon, Cervantesia, 

 Cestrum, Chamaedora, Chionachne, Chloroxylon, Cinchona, Cinna- 

 momum, Clausena, Coccoloba, Cocos, Coffea, Cola, Colocasia, Com- 

 bretum, Copernicia, Corchorus, Corynosicyos, Crotalaria, Croton, 

 Cupania, Curcuma, Cycas, Dalbergia, Dendrocalamus, Dimochloa, 



