FOOTNOTES:
[10] See a curious instance of this kind in the branches of Pinus. 'Regel. Garten Flora,' vol. 8, tab. 268.
[11] 'Bull. Soc. Bot. France,' 1860, p. 881.
[12] Ibid., 1861, p. 708.
[13] Ibid., 1860, p. 923.
[14] 'Proc. Linn. Soc.,' April 5, 1853.
[15] 'Organ. Végét.,' pl. iii, fig. 1.
[16] 'Bull. Acad. Roy. Bruxelles,' t. xviii, p. i and p. 591.
[17] 'Linnæa,' tom. 13, p. 383.
[18] 'Verhandl. Nat. Hist. Vereins,' 1859, Bonn, tom. xvi, tab. 3.