[UNDER-1 5 b.]
1. A variety of cider-apple. Also attrib.
1707. Mortimer, Husb., 540. The Underleaf is a very plentiful bearer, hath a Rhenish Wine flavour. Ibid., 575. The best sorts for Cyder are found to be the Olive Underleaf Apple [etc.].
1786. Abercrombie, Arrangem., p. xi., in Gard. Assist. Apples valued principally for Cyder [include] Underleaf.
2. The under surface of a leaf.
1873. Tristram, Moab, xviii. 353. The charm of the silvery [poplar] underleaf twinkling in the breeze.