Amaryllidaceae (1837)
Delayed Fertility in Crinum x scabro-capense
William Herbert

The mules between Scabrum and Capense having continued so many years with every appearance of absolute sterility, without any change of situation or treatment, at last produced one good seed in 1834 and another in 1835.

P374 I have already mentioned that Crinum scabro-capense, though the pollen of different species was applied to it had continued about sixteen years perfectly sterile. In 1834 a plant of it which had been growing the greater part of that time out of doors in front of the stove, produced one small seed. It vegetated, but the leaf was from the first of a yellowish white, and the plant did not live many weeks. In 1835 it produced another and larger seed, the early part of that summer having been very hot both those seasons. This seed was sown in white sand to try to save it from perishing like the former, and a thriving young plant has been obtained from it. Whether they are the produce of its own pollen, or that of Pedunculato-capense, which grew beside it, cannot yet be judged with certainty; but the seedling now growing vigorously, has deep green leaves, and does not shew any approximation to the glaucous hue of C. Capense, of which a large bed was not far off; and that hue would probably have been very apparent, if it had been so crossed again.