Naturalisation in Extra- Tropical Countries. 537 



GENERA INDICATING continued. 



G-um- Plants 



Acacia,* Albizzia, Astragalus,* Bambusa, Brachychiton, Cara- 

 gana, Diospyros, Olea, Piptadenia, Prosopis, Xylia. 



Hedgre-Plants 



Aberia, Acacia, Acer, Aegle, Agave, Albizzia, Alnus, Aspara- 

 gus, Azima, Baccharis, Bambusa, Berberis, Buddlea, Csesalpinia, 

 Capparis, Carissa, Ceanothus, Celtis, Citrus, Cornus, Cratasgus,* 

 Cudrania, Cupressus, Cytisus, Elasagnus, Euonymus, Flacourtia, 

 Gleditschia, Guilandina, Hymenanthera, Ilex, Justicia, Lantana, 

 Lawsonia, Ligustrum, Lycium, Maclura, Mimosa, Opuntia. 

 Paliurus, Parkinsonia, Peireskia, Pisonia, Pistacia, Pittos- 

 porum, Plectronia, Prosopis, Prunus, Punica, Pyrus, Khamnus. 

 Rhus, Rosa,* Rubus Ruscus, Salix, Scutia, Streblus, Thuya, 

 Viburnum, Ximenia, Zizyphus. 



Honey-Plants 



Acacia, Acer, ^Esculus, Agave, Albizzia, Angophora, Audi- 

 bertia,* Avicennia, Barbarea, Borrago, Brassica, Buddlea, Gary a, 

 Castanea, Catalpa, Cephalaiitlius, Cerinthe, Citrus, Crataegus. 

 Crepis, Crocus, Cucurbita, Cytisus, Diospyros, Dipsacus, 

 Eclnnops, Echium, Ervum, Eucalyptus, Eucryphia, Eiipatorium, 

 Fagopyrum, Grleditschia, Gossypium, Grevillea, Hedera, 

 Hedysarum, Heliantlius, Lavandula,* Liriodendron, Lupinas. 

 Marrubium, Medicago, Melilotus, Melaleuca, Melianthus, Melissa, 

 Mentlia, Monarda, Musa, Nepeta, Ocimum, Origanum,* Ornitho- 

 pus, Onobrychis, Peireskia, Photinia, Prenanthes, Prostanthera , 

 Protea, Prunus, Pyrus, Reseda, Rhamnus, Ribes, Rlius, Robinia, 

 Rosa, Rosmarinus, Rubus, Sabal, Salix, Salvia, Sanguinaria, 

 Taraxacum, Teucrium,* Thymus, Tilia, Trichostema, Trifolium,^ 

 Tropa^olum, Vicia, Viola. 



Hop-Plant 



Humulus.* 



Insecticidal-Plants 



Agave, Ailantus, Aloe, Artemisia, Cannabis, Chrysaritliemum, 

 Eucalyptus, Fagopyrum, Gymnocladus, Matricaria, Melia, 

 Mcotiana, Prunus, Ricirius, Rosmarinus, Sclikuhria, Solanum, 

 Tagetes, Tropaeolum. 



Zrrigration-Plants 



Andropogon, Aveiia, Bambusa, Boehmeria, Brassica, Cannabis, 

 Citrus, Cucumis, Cucurbita, Euchlaena, Festuca, Gossypium, 

 Humulus,* Juglans, Lolium, Medicago, Olea, Onobrychis. 

 Oryza,* Panicum, Phleum, Phoenix, Phormium, Poa, Prunus, 

 Pyrus, Rubus, Salix, Trifolium, Vitis, Zea. 



