The flowering plants of South Africa; vol. 3Pole Evans, I. B. (Illtyd Buller)
Science
The flowering plants of South Africa; vol. 3
Pole Evans, I. B. (Illtyd Buller)
Plants -- South Africa -- Periodicals; Plants -- South Africa -- Pictorial works -- Periodicals
DESCRIPTION:--A herbaceous sticky plant with radicle leaves. _Leaves_ 16
to 19 cm. long lyrate; the uppermost lobe 7 to 8 cm. long, 2·5 to 5 cm.
broad, the margins lobed with broad oblong lobes, with three main veins,
distinct above and prominent beneath, cobwebby on both surfaces; lower
lobes 1 to 2·5 cm. long; ·7 to 1·3 broad, oblong, obtuse, cobwebby above
and beneath; petiole flat above, convex beneath, with three distinct
keels, scantily cobwebby; cauline leaves 2 to 9 cm. long, pinnatilobed,
eared and somewhat clasping at the base. _Stems_ up to 33 cm. long,
terete, ribbed, covered with long glandular hairs. _Heads_ solitary at
ends of stems, 8 to 9 cm. in diameter when fully expanded. _Involucral
bracts_ in 4 rows; outermost 8 mm. long, acuminate from a broad base,
green, covered with long glandular hairs; innermost 1·2 cm. long,
glabrous, membranous. _Receptacle_ 1·5 cm. in diameter, honeycombed, the
margins of the cells membranous and produced into long awns.
_Ray-floret_ female, lemon-chrome, orange at base. _Tube_ 3 mm. long,
cylindric; lobe 3·5 cm. long, 7 mm. broad, lanceolate, minutely
3-toothed at the apex, 2-keeled beneath; at throat of tube are four
minute black structures representing reduced corolla lobes. _Pappus_
less than ·5 mm. membranous. _Ovary_ 1 mm. long; style 4 mm. long,
terete, thickened below the lobes; lobes 1 mm. long, oblong, obtuse.
_Disc-florets_ hermaphrodite. _Corolla-tube_ 3 mm. long, 1·25 mm. in
diameter above, slightly narrower at the base, sparsely glandular; lobes
1·5 mm. long, linear, obtuse. _Anthers_ black, 2·25 mm. long, blunt at
base. _Ovary_ and pappus similar to those of ray-florets; style thin for
the first 3 mm., then suddenly much thickened in the upper 2 mm. of its
length; lobes ·5 mm. long, oblong, obtuse. (National Herb. Pretoria, No.
2599.)
PLATE 117.--Fig. 1, basal leaf reduced; 2, outer involucral bract;
3, inner involucral bract; 4, longitudinal section through
receptacle; 5, surface view of part of receptacle; 6, ray-floret;
7, stigmas and portion of style of ray-floret; 8, disc-floret; 9,
stigmas and portion of style of disc-floret; 10, fruit.
F.P.S.A., 1923.
[Illustration: _118._
S Gower del]
PLATE 118.
LONCHOSTOMA MONOSTYLIS.
_Cape Province._
BRUNIACEAE.
LONCHOSTOMA, _Wickstr._; _Benth. et Hook. f. Gen. Plant._ vol. i. p. 673.
=Lonchostoma monostylis=, _Sond. in Harv. et Sond. Fl. Cap._ vol. ii.
p. 317.
This member of the family _Bruniaceae_ differs from that previously
figured (_Brunia Stokoei_, Plate 92) in having a tubular corolla. In
this respect it is also unique in the family. The genus is a small one,
comprising only four known species.
Ecklon and Zeyher collected this plant in the Palmiet River Valley, and
since then it has not been recorded until recently, when Mr. T. P.
Stokoe gathered it in the same locality. He sent fresh specimens to the
Division of Botany, and from these the plate was made.
Public-domain text, read in full here on John Shaqi.
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