1869 (Royal Soc.) 159 477 Two fragments, one a leaf apex, the other part of a leaf nearer to the base.
1964 39 604/2 At the lowest level of iron supply the leaf apices became totally bleached.
2012 P. W. Bosland & E. J. Votava iii. 44 The leaf apex is usually acuminate but can be acute or obtuse.