R. HYPOPHYLLUM.--Double Tongue. Mediterranean region, 1640. This species
has the flowers on the undersides of the leaf-like branches; and its
variety R.H. Hypoglossum has them on the upper side. Both are of value
for planting in the shade.


SAMBUCUS.

SAMBUCUS CALIFORNICA.--Californian Elder. A rare species as yet, but one
that from its elegant growth and duration of flowers is sure, when
better known, to become widely distributed.

S. GLAUCA has its herbaceous parts covered with a thick pubescence;
leaves pubescent on both sides, and with yellow flowers produced in
umbels.

S. NIGRA.--Common Elder. Bourtry, or Bour tree. Although one of our
commonest native trees, the Elder must rank amongst the most ornamental
if only for its large compound cymes of white or yellowish-white
flowers, and ample bunches of shining black berries. There are, however,
several varieties that should be largely cultivated, such as S. nigra
foliis aureis (Golden Elder), S. nigra fructu albo (White Fruited), S.
nigra laciniata (Cut-leaved Elder), S. nigra argentea (Silver-leaved
Elder), S. nigra rotundifolia (Round-leaved Elder), the names of which
will be sufficient for the purposes of recognition.

S. RACEMOSA.--Scarlet-berried Elder. South Europe and Siberia, 1596.
This is almost a counterpart of our native species, but instead of black
the berries are brilliant scarlet. It is a highly ornamental species,
but it is rather exacting, requiring for its perfect growth a cool and