GENERAL OBSERVATIONS AND CONCLUSIONS. 455 



species whicli are not enumerated below; tliey are IGD 

 in number. 



Among these 169 species, 31 belong to the categories 

 A and D, of very ancient cultivation, oii have been in 

 cultivation less than two thousand years, C, and the 

 others are of modern or unknown date. 



2. Seen and gathered in the same conditions, but by 

 a single botanist in a single locality. Three species. 



Cucurbita maxima,i^ a6a vulgaris, Nicotiana Tahacinn . 



8. Seen and mentioned but not gathered in the same 

 conditions by one or two authors and botanists, more or 

 less ancient, who may have been mistaken. Two species. 



Cartlunmis tindorius, Triticiiini vuhjave. 



4. Gathered wild by botanists in several localities 

 under a form slightly different to those which are culti- 

 vated, but Avhich most authors have no hesitation in 

 classing with the species. Four species. 



Olea europcea, Ovyza satlva, Solanum tuberosum, 

 Vitis vimfera. 



5. Wild, gathered by botanists in several localities 

 under forms considered by some botanists as constituting 

 different species, while others treat them as varieties. 

 Fifteen species. 



Allium ampeloprasum porrum, Cichorium Endivia, 

 var., Crocus sativus, var., *Cucumis melo, Cucurbita 

 Pepo, Heliantluis tuberosus, Latuca scariola sativa, 

 Linum usitatissiimivi annvAim, Lycopersicum esculen- 

 tium, Papaver somniferum, Pyrus nivalis var., *l\,ibes 

 grossularia, Solanum Melongena, *Spinacia oleracea var., 

 Triticum monococcum. 



6. Subspontaneous, that is half- wild, similiar to one 

 or other of the cultivated forms, but possibly plants 

 escaped from cultivation, judguig from the localit}-. 

 Twenty-four species. 



Agava americana, Amarantus gangeticus, Amf/gdalus 

 "persica, Areca catechu, *Avena orientalis, Avena sativa, 

 *Ca.janus indicus, Cicev arietiinim, Citrus decuuiana, 

 Cucurbita moschata, Dioscorea japonica, Ervum Ervilia, 

 Erviiin lens, Fagopyrum emarginatum, Goss^'pium bar- 

 badense, Holcus saccharatus, II ulcus sorylaun, Indigofera 



