Australian Tropical Rainforest Plants banner
Character Index banner

Tenth leaf if compound number of leaflets

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 applies to both pinnate and digitately compound leaves.

S52 with up to 7 leaflets S53 with 8-20 leaflets
S54 with more than 20 leaflets