._

ICOSANDRIA POLYGYNIA.

_Generic Character._

_Cal._ 10-fidus. _Petala_ 5. _Sem._ subrotunda, nuda, receptaculo parvo
exsucco affixa.

_Specific Character and Synonyms._

POTENTILLA _grandiflora_ foliis ternatis dentatis utrinque subpilosis,
caule decumbente foliis longiore, _Lin. Syst. Vegetab. p. 715._

FRAGARIA sterilis, amplissimo folio et flore petalis cordatis, _Vaill.
Paris. 55. t. 10. f. 1._

[Illustration: No 75]

Culture is well known to produce great alterations in the appearance of
most plants, but particularly in those which grow spontaneously on dry
mountainous situations, and this is strikingly exemplified in the
present instance, this species of _Potentilla_, becoming in every
respect much larger, as well as much smoother than in its natural state.
_Vid._ VAILL. above quoted.

It is a hardy herbaceous plant, a native of Switzerland, Siberia, and
other parts of Europe, and flowers in July.

LINNAEUS considers it as an annual; MILLER, as a
biennial; we suspect it to be, indeed have little doubt of its being a
perennial; having propagated it by parting its roots, but it may be
raised more successfully from seed.

[76]

EPILOBIUM ANGUSTISSIMUM. NARROWEST LEAV'D WILLOW-HERB.

_Class and Order._

OCTANDRIA MONOGYNIA.

_Generic Character._

_Cal._ 4-fidus. _Petala_ 4. _Caps._ oblonga, infera. _Sem._ papposa.

_Specific Character and Synonyms._

EPILOBIUM angustifolium, foliis sparsis linearibus obsolete denticulatis
aveniis, petalis aequalibus integerrimis, _Ait. Hort. Kew. 2. p. 5._

EPILOBIUM _angustifolium_, var. _Lin. Sp. Pl._

EPILOBIUM flore difformi, foliis linearibus. _Hall, Hist. Helv. p. 427.
n. 1001._

[Illustration: No 76]

Though the _Epilobium_ here figured has not been many years introduced
into this country, it is a plant which has long been well known, and
described.

LINNAEUS makes it a variety only of the _Epilobium
angustifolium_; HALLER, a distinct species, and in our opinion,
most justly.

Those who have cultivated the _Epilobium angustifolium_ have cause to
know that it increases prodigiously by its creeping roots. The present
plant, so far as we have been able to determine from cultivating it
several years, in our Garden, Lambeth-Marsh, has not shewn the least
disposition to increase in the same way, nor have any seedlings arisen
from the seeds which it has spontaneously scattered: we have, indeed,
found it a plant