A taxonomic revision of Inulanthera (Asteraceae: Anthemideae) *
Author
Magoswana, S. L.
Author
Boatwright, J. S.
Author
Manning, J. C.
Author
Magee, A. R.
text
South African Journal of Botany
2016
2016-07-31
105
141
157
http://dx.doi.org/10.1016/j.sajb.2016.02.203
journal article
10.1016/j.sajb.2016.02.203
1727-9321
10496274
5.
Inulanthera montana
(Wood & Evans)
KällersjÖ in Nord. J. Bot. 5 (6): 539 (1986).
Athanasia montana
Wood & Evans
in Na
t. Colon
. Herb. Annual Rep. 10. (1900); Wood in J.Bot.171 (1901); Hilliard, Compositae in Natal: 338 (1977).
Type
:
South Africa
, [
KwaZulu-Natal
], Drakensberg, source of Bushman's River,
Jun. 1896
,
Evans 662
(NH, lecto. – image!, designated here; BOL!, K – image!, PRE – image! isolecto.).
Multi-stemmed shrub 0.30–1.0 m, resprouting from a woody caudex, stems simple or densely branched from near base, branches
2–6 mm
diam., cobwebbed.
Leaves
sub-erect to spreading, lanceolate to obovate, 10–25 ×
4–10 mm
, base cuneate, margins sharply serrate, revolute, glabrous, coriaceous; axillary shoots developed in upper leaves.
Capitula
in dense compound corymbs
30–40 mm
across, branches
5–20 mm
long, inflorescence bracts linear to lanceolate, 2–10 ×
3–5 mm
.
Involucre
subglobose, 3–5 ×
3–7 mm
, glabrescent or glabrous; outer bracts ovate to elliptic, 2–3 ×
1–2 mm
, obtuse, margins serrulate.
Receptacle
paleate.
Florets
40 to 50.
Pappus
formed by ribs extended apically into horns
0.1–0.3 mm
long.
Cypselas
obovoid, 1.5–2.0 × 0.5–1.0 mm, prominently 8- to10-ribbed, scabrid.
Fig. 10
.
Diagnostic characters
Inulanthera montana
can be confused with
I. leucoclada
because of its serrated leaves, but is distinguished by the low branching habit and conspicuous axillary shoots (
Fig. 10A
) and the smaller capitula
3–7 mm
long containing 40 to 50 florets (vs.
7–10 mm
long containing 60 to 70 florets).
Distribution, ecology and phenology
Inulanthera montana
is known mainly from central
KwaZulu-Natal
, where it occurs on rocky slopes in grassland at altitudes above
1700 m
, with a single isolated early record from the Winterberg in
Eastern Cape
. Flowering is from May to July. (
Fig. 9
).
Additional specimens examined
South Africa
. KWA‐
ZULU NATAL
:
2829 (Harrismith):
Cathedral Peak (
−
CC),
Schelpe 262
(NU),
Esterhuysen 10,240
(BOL); Weenen Division, Cathedral Peak area, (
−
CC),
Esterhuysen 15504
(BOL, NBG);
2929 (Underberg):
Cathkin area, Drakensberg upper S slopes (
−
AB),
Esterhuysen 7934
(BOL); Giant's Castle Game Reserve, Giant's Castle Pass (
−
AB),
Wright 1010
(NU); slopes of Cathkin Peak (
−
AB),
Edwards 2008
(NU),
Meebold PRE 58477
(PRE); Bergville, Injasuti area, near Drakensberg (
−
AB),
Esterhuysen 34966
(BOL); upper Loteni Valley, vicinity of Ash Cave (
−
AD),
Hilliard and Burtt 18,089
(NU); source of Bushman's River, Drakensberg (
−
BA),
Evans 662
(BOL); Highmoor Forest Reserve, ridge SE of Giant's Castle, Headwaters of Elandshoek River (
−
BC),
Hilliard and Burtt 16235
(NU); Lion's Rover, Farm Allendale (
−
BC),
Hilliard and Burtt 11264
(NU); Kamberg (
−
BD),
Gibson s.n.
(NU).
EASTERN CAPE
:
3226 (Fort Beaufort):
Great Winterberg (
−
AC),
Galpin 2660
(BOL).