The flowering plants of South Africa; vol. 5Pole Evans, I. B. (Illtyd Buller)
Science
The flowering plants of South Africa; vol. 5
Pole Evans, I. B. (Illtyd Buller)
Plants -- South Africa -- Periodicals; Plants -- South Africa -- Pictorial works -- Periodicals
Through the courtesy of Dr. J. Muir of Riversdale we are able to figure
for the first time a species of heath, and perhaps one of the most
beautiful of all the Cape heaths. The variety _grandiflora_ is only
found as far as we know in the Riversdale and Bredasdorp Districts and
is by no means a common plant. It is known locally as the “lantern” or
“Riversdale” heath. The species itself, like so many of the South
African species of _Erica_, was first collected by Masson about the year
1772, and was successfully cultivated in Europe and figured on more than
one occasion in early botanical literature.
DESCRIPTION:--Erect, 0·3 to 0·5 m. high. _Branches_ stout, ascending,
virgate or flexuous, puberulous or glabrous. _Leaves_ 3-nate, mostly
erect and imbricate or subspreading, linear, subobtuse, flat above,
keeled and sulcate beneath, glabrous, 8 to 10 mm. long. _Flowers_
usually solitary, rarely in pairs (“here and there sublateral,”
Bentham). _Pedicels_ about 8 mm. long; bracts remote, lanceolate, about
6 mm. long; sepals ovate, acuminate, keel-tipped, thickish, subscarious,
viscid, coloured or greenish, about 5 mm. long. _Corolla_ conical-ovoid
or suburceolate-conical, much contracted to the mouth but only slightly
constricted at the throat, very viscid, 1·6 to 2 cm. long, bright
orange-red, the limb and some distance below it green; segments
spreading or erect, about one-eighth the length of the tube; filaments
broad at the base tapering upwards, bent below the anther; anthers
included, dorsifixed well above the base, cuneate, subacute,
scaberulous, ciliolate, about 3 mm. long, crested; pore three-fifths to
two-thirds the length of the cell; crests quite free from the filament,
subsemiorbicular in outline, deeply inciso-lacerate, about half the
length of the cell; style included, straight; stigma capitellate; ovary
glabrous. (National Herb., Pretoria, No. 2991.)
PLATE 199.--Fig. 1, pedicel showing bracts; Fig. 2, androecium and
gynaecium; Fig. 3, single stamen; Fig. 4, pistil; Fig. 5, anther
enlarged.
F.P.S.A., 1925.
[Illustration: 200.]
PLATE 200.
DIMORPHOTHECA CUNEATA.
_Cape Province, Natal, Orange Free State._
COMPOSITAE. Tribe CALENDULEAE.
DIMORPHOTHECA, _Moench._; _Benth. et Hook. f. Gen. Plant._ vol. ii. p. 453.
* * * * *
=Dimorphotheca cuneata=, _Less. Syn._ 257; _Fl. Cap._ vol. iii. p. 422.
* * * * *
We are indebted for the specimens, from which the accompanying Plate was
prepared, to Mr. C. A. Smith, B.Sc., who collected them in September
1925 on the botanical reserve near Fauresmith, Orange Free State.
According to Mr. Smith the plants cover the hill-sides and from a
distance appear as large white patches. It flowers very profusely, so
much so that the leaves are almost hidden by the mass of flowers. The
laminae of the ray-florets are white above and copper-coloured beneath,
not yellow as described in the _Flora Capensis_.
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