it is kept in the stove, where it thrives and flowers readily
during most of the summer; the single blossoms last but a short time,
yet their superiority arising from the curious and beautiful structure
of the interior parts of the flower, compensates for the shortness of
their duration.

It is usually increased by cuttings.

[159]

ALYSSUM SAXATILE. YELLOW ALYSSUM.

_Class and Order._

TETRADYNAMIA SILICULOSA.

_Generic Character._

_Filamenta_ quaedam introrsum denticulo notata. _Silicula_ emarginata.

_Specific Character and Synonyms._

ALYSSUM _saxatile_ caulibus frutescentibus paniculatis, foliis
lanceolatis mollissimis repandis. _Linn. Syst. Veg, ed. 14. Murr.
p. 590._ _Ait. Hort. Kew. p. 381._

ALYSSUM Creticum Saxatile, foliis undulatis incanis. _Tourn. cor. 15._

THLASPI luteum leucoji folio. _Bocc. muf. 79. t. 93._

[Illustration: No 159]

As this plant has very generally obtained in gardens and nurseries the
name of yellow Alyssum, we have retained it; for though it is not the
only one of the genus which produces yellow flowers, it may still be
called yellow by way of eminence, such is the extreme brilliancy and
profusion of its blossoms.

It is a native of Crete, and was first cultivated in this country by Mr.
MILLER, in 1731[3], at Chelsea garden.

It begins to flower about the latter end of April, and continues to
blossom through great part of May; and it is not uncommon for it to
flower again in autumn.

If it has a pure air and a dry situation, it will grow in almost any
soil.

The usual mode of propagating it is by slips, or cuttings. As it is a
small, shewy, hardy plant, and not disposed to over-run others, it is
very suitable to embellish rock-work.

[160]

PULMONARIA VIRGINICA. VIRGINIA LUNGWORT.

_Class and Order._

PENTANDRIA MONOGYNIA.

_Generic Character._

_Corolla_ infundibuliformis fauce pervia. _Calyx_ prismatico-pentagonus.

_Specific Character and Synonyms._

PULMONARIA _Virginica_ calycibus abbreviatis, foliis lanceolatis
obtusiusculis. _Linn. Syst. Veg. ed. 14. Murr. p. 187._

PULMONARIA non maculosa, floribus tubulosis longis pulcherrimis
caeruleis, in panicula pendula congestis, foliis teneribus glabris
latis obtusis, ad margines aequalibus, pediculis dilute purpureis
infidentibus, radice crassa instar symphyti. Mountain Cowslip.
_Clayt. Gron. Fl. Virg. p. 25._

[Illustration: No 160]

MILLER inform