Note 438 — Chapter II · MULTIPLICATION OF FOLIAR ORGANS.
Reading edition
On this point the reader will find an excellent summary in Lindley's 'Vegetable Kingdom,' cd. iii, p. 183a, and in Darwin, 'Fertilisation of Orchids,' p. 292. See also Crüger,'Journ. Linn. Soc.,' t. viii, p. 134.