have been described by other authors, particularly JACQUIN and HALLER;
and though not present in most, and but faintly visible in a few species
of _Sempervivum_, in this plant form a principal part of the
fructification; they are usually seven in number, but vary from six to
eight.

In the specimens we have examined, and which perhaps have been rendered
luxuriant by culture, the number of stamina has been from twelve to
sixteen; of styles, from six to eight; of flowers on the same stalk,
from one to eight.

It flowers during most of the summer months, succeeds very well with the
common treatment of a greenhouse plant in the summer, but does best in a
dry stove in the winter.

Is readily increased by parting its roots.




[94]

SISYRINCHIUM IRIOIDES. IRIS-LEAV'D SISYRINCHIUM.


_Class and Order._

GYNANDRIA TRIANDRIA.

_Generic Character._