Note 370 — Chapter XIX

Mr. Cross sowed eight of the seeds; one began to germinate on the fourth day, and at the end of a fortnight four seeds had pushed their radicles. In three weeks one had the seed-leaves completely developed; and on the twenty-eighth day after sowing, the last of the eight pushed its radicle. Eight chinchona-seeds, gathered by Mr. Spruce in 1859, were sown at Guayaquil, which had remained nine months in his herbarium. Of these four germinated, which clearly shows that well-ripened and properly-dried seeds do not lose their vitality for a much longer period than their excessive delicacy would lead one to suspect.