[129] Hooker, Bot. Miscell., ii.
[130] Hooker, Fl. Antarctica.
[131] Journal Hort. Soc., new series, vol. v.
[132] Weddell, Chloris Andina, p. 103.
[133] André, in Illustration Horticole, 1877, p. 114.
[134] The form of the berries in S. columbianum and S. immite is not yet known.
[135] Hemsley, Journal Hort. Soc., new series, vol. v.
[136] Asa Gray, Synoptical Flora of North America, ii. p. 227.
[137] See, for the successive introduction into the different parts of Europe, Clos, Quelques Documents sur l’Histoire de la Pomme de Terre, in 8vo, 1874, in Journal d’Agric. Pratiq. du Midi de la France.
[138] Turpin gives figures which clearly show these facts. Mém. du Muséum, vol. xix. plates 1, 2, 5.