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
DESCRIPTION:--An arborescent branched shrub. _Leaves_ up to 0·5 m. long,
about 4 cm. broad at the base, gradually tapering to the apex, almost
flat on the upper surface, convex on the lower surface, with ovate
somewhat incurved teeth 1 cm. apart below, about 1·3 cm. apart above,
glabrous. _Inflorescence_ solitary or 2-3 from each rosette of leaves,
unbranched. _Peduncle_ 7 mm. in diameter, cylindric with scattered
membranous bracts. _Floral-bracts_ membranous, 1·3 cm. long, 9 mm.
broad, oblong, with straight margins, distinctly veined. _Pedicels_ 2
cm. long, elongating in the old flowers. _Raceme_ dense, up to 22 cm.
long. _Young flowers_ erect-spreading, cylindric, with a subacute apex;
old flowers pendulous. _Perianth_ (in open flowers) 3·2 cm. long; outer
segments reddish, 5 mm. broad, obtuse; inner segments white, 9 mm.
broad, with a distinct mid-rib, reddish below, greenish above, obtuse.
_Stamens_ projecting. _Ovary_ 8 mm. long, cylindric; style 3·2 cm. long,
cylindric; stigma minute. (National Herb., Pretoria, No. 2904.)
PLATE 187.--Fig. 1, young and adult flowers; Fig. 2, median
longitudinal section of a flower; Fig. 3, pistil; Fig. 4, bract.
F.P.S.A., 1925.
[Illustration: 188.]
PLATE 188.
DERMATOBOTRYS SAUNDERSII.
_Cape Province, Natal._
SCROPHULARIACEAE.
DERMATOBOTRYS, _Bolus in Hook. Ic._ Pl. 1940.
* * * * *
=Dermatobotrys Saundersii=, _Bolus in Hook. Ic._ Pl. Zwilt’s 1940; _Fl. Cap._ vol. iv.
sect. ii. p. 206.
* * * * *
This interesting member of the _Scrophulariaceae_ is peculiar in that it
grows as an epiphyte on other trees. Miss Pegler records it from the
Kentani District as growing on the Cape Chestnut (_Calodendron
capense_). It ranges from Kentani to Zululand. It differs also from most
members of the family in having 5 well-developed stamens, and for this
reason was first referred to the family _Solanaceae_, but the straight
or almost straight embryo indicates an affinity with the family
_Scrophulariaceae_.
Mr. Saunders, who first collected the plant, described it as a parasite
which killed the host on which it grew, but the late Dr. Medley Wood
states that the plant has a tendency to fix itself to trees already
dead.
We are indebted to Mr. K. B. Jameson, Scottsville, Maritzburg, for the
specimen from which our illustration was prepared.
Public-domain text, read in full here on John Shaqi.
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