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Tenth leaf stage terminal bud pubescence

These features refer to the tenth leaf stage. The tenth leaf is the tenth true leaf produced after the cotyledons. On seedlings with alternate or spirally arranged leaves it is just simply the tenth leaf produced.  On seedlings with opposite leaves it is one of the leaves in the fifth pair of true leaves produced.  On seedlings with whorled leaves it will be one of the leaves in the appropriate whorl; e.g. if there are four leaves in each whorl then the tenth leaf will be one of the leaves in the third whorl.

This is the bud at the apex of the seedling. This bud can take various forms, it may be a well developed structure consisting of numerous bracts or it be no more than a naked bud consisting of exposed developing leaves.  A x10 lens should be used when looking at this feature.


S80 terminal bud smooth S81 terminal bud hairy