beautiful in colour, ranging from white to crimson. _E. carnea_
loves the cool pure mountain air, and on hot and sandy soil in the
Thames Valley is short-lived. At the same time it thrives admirably in
gardens where a moist, cool bottom can be provided and where the air is
pure. Altogether it makes an admirable succession to _E. carnea_.

_E. ciliaris_ (Dorset Heath).--Although in smoky and foggy places, such
as London, this Heath is not always satisfactory, in the purer air of
the surrounding counties it is a delightful shrub. In some of the old
oak-bearing country, in Sussex, for instance, it succeeds to perfection.
It is a native of Britain, but is, I believe, confined to Cornwall and
Dorset in England, and to Galway in Ireland. It has long, slender,
prostrate stems, from which spring erect flower-bearing branches; the
rich rose-purple flowers are borne in a long raceme, and they are the
largest individually of those of all the native Heaths. The leaves are
nearly always in threes, and, like all the younger parts of the plant,
are covered with hairs and pubescence; it flowers from July onwards.

[Illustration: _WHITE MEDITERRANEAN HEATH (Erica mediterranea alba)._]

_E. maweana._--This appears to be a fine variety of _E. ciliaris_, with
larger leaves and flowers, even richer in colour and of sturdier growth.
It was discovered in Portugal some thirty years or so ago by Mr. George
Maw, but has not become popular notwithstanding its beauty. It was
obtained for the Kew collection from Messrs. Cunningham and Fraser, of
Edinburgh, three or four years ago, and certainly promises to be a
better grower there than _E. ciliaris_. The flowers are rich crimson and
in large racemes.

_E. Watsoni._--This is a supposed natural hybrid between _E. ciliaris_
and _E. Tetralix_, and was first discovered near Truro by Mr. H. C.
Watson. It has rosy-crimson flowers produced in a flatter raceme than
that of _E. ciliaris_. In this character and in other ways it is
intermediate between the parents.

_E. Tetralix_ (the Cross-leaved Heath or Bell Heather).--This beautiful
Heath grows on most of the moors and mountain-sides throughout the
British Isles, being perhaps the most widely spread of all the true
Ericas in this country. It is called the "Cross-leaved Heath" because of
the arrangement of the leaves, which are in whorls of four. It is not
very distinct in general appearance from _E. ciliaris_, being downy and
hairy on its young slende