des Sci. Nat.,' 4th ser. Bot. tom. xi. 1859, p.
28.

[755] 'Memoire sur les Cucurbitacees,' 1826, pp. 6, 24.

[756] 'Flore des Serres,' Oct. 1861, quoted in 'Gardener's Chronicle,'
1861, p. 1135. I have also consulted and taken some facts from M. Naudin's
Memoir on Cucumis in 'Annal. des Sc. Nat.,' 4th series, Bot. tom. xi. 1859,
p. 5.

[757] _See_ also Sageret's 'Memoire,' p. 7.

[758] Loudon's 'Arboretum et Fruticetum,' vol. ii. p. 1217.

[759] 'Gardener's Chronicle,' 1866, p. 1096.

[760] 'Geograph. Bot.,' p. 1096.

[761] 'Gardener's Chron.,' 1842, p. 36.

[762] Loudon's 'Arboretum et Fruticetum,' vol. iii. p. 1731.

[763] Ibid., vol. iv. p. 2489.

[764] Godron ('De l'Espece,' tom. ii. p. 91) describes four varieties of
Robinia remarkable from their manner of growth.

[765] 'Journal of a Horticultural Tour, by Caledonian Hort. Soc.,' 1823, p.
107. Alph. De Candolle, 'Geograph. Bot.,' p. 1083. Verlot, 'Sur la
Production des Varietes,' 1865, p. 55, for the Barberry.

[766] Loudon's 'Arboretum et Fruticetum,' vol. ii. p. 508.

[767] Verlot, 'Des Varietes,' 1865, p. 92.

[768] Loudon's 'Arboretum et Fruticetum,' vol. iii. p. 1376.

[769] 'Gardener's Chronicle,' 1841, p. 687.

[770] Godron, 'De l'Espece,' tom. ii. p. 89. In Loudon's 'Gardener's Mag.,'
vol. xii. 1836, p. 371, a variegated bushy ash is described and figured, as
having simple leaves; it originated in Ireland.

[771] 'Gardener's Chron.,' 1861, p. 575.

[772] Quoted from Royal Irish Academy in 'Gardener's Chron.,' 1841, p. 767.

[773] Loudon's 'Arboretum et Fruticetum:' for Elm, _see_ vol. iii. p. 1376;
for Oak, p. 1846.

[774] 'Gardener's Chronicle,' 1849, p. 822.

[775] 'Arboretum et Fruticetum,' vol. iv. p. 2150.

[776] 'Gardener's Chron.,' 1852, p. 693.

[777] _See_ 'Beitraege zur Kentniss Europaeischer Pinus-arten von Dr. Christ:
Flora, 1864.' He shows that in the Ober-Engadin _P. sylvestris_ and
_montana_ are connected by intermediate links.

[778] 'Arboretum et Fruticetum,' vol. iv. pp. 2159 and 2189.

[779] Ibid., vol. ii. p. 830; Loudon's 'Gardener's Magazine,' vol. vi.
1830, p. 714.

[780] Loudon's 'Arboretum et Fruticetum,' vol. ii. p. 834.

[781] Loudon's 'Gardener's Mag.,' vol. ix. 1833, p. 123.

[782] Ibid., vol. xi. 1835, p. 503.

[783] 'Gardener's Chron.,' 1845, p. 623.

[784] D. Beaton, in 'Cottage Gardener,' 1860, p. 377. _See_ also Mr. Beck,
on the habits of Queen Mab, in 'Gardener's Chronicle,' 1845, p.