Note 17 — Chapter XV · ON CROSSING.
Reading edition
Duval Jouve, ‘Bull. Soc. Bot. de France,’ tom. x., 1863, p. 194. With respect to the perfect flowers setting seed, see Dr. Ascherson in ‘Bot. Zeitung,’ 1864, p. 350.
Reading edition
Duval Jouve, ‘Bull. Soc. Bot. de France,’ tom. x., 1863, p. 194. With respect to the perfect flowers setting seed, see Dr. Ascherson in ‘Bot. Zeitung,’ 1864, p. 350.