
          Niagara

Sample Taken 7/6/42
Studied 7/7/42

Moderately heavy felty pubescence on intervein areas on
under side of mature leaf.  Cobwebby hairs lie longitudinally along the
veins -- becoming rusty in color.  Same applies to petiole of leaf
but pubescence becomes more or less ruffled by friction

No setaceous hairs seen on under side of leaf or petiole.  No
tufts in axils of veins.  Spare cobwebby hairs on upper side
of leaf most prominent along veins.

The young growing tip shows considerable amount of longitudinal
cobwebby hairs appressed on the surface -- extending up petioles
of young leaves and veins on under side.  Intervein surfaces show fairly dense
felt mat, very dense in youngest leaves but thinning out to
moderately heavy in older leaves.

On upper surface of young leaves there is a uniform thin
network of cobwebby hairs.

No setaceous hairs observed anywhere.

Tendrils of this specimen single-forked

[sketch of sindle-forked tendril]
        