CRISTATUS VAR. ZEYHERI (Harv.) Tölken
Also separated from A.
cristatus var. cristatus are varieties clavifolius, mzimvubuensis and schonlandii.
The old type locality (TL) is Kenko
River, interpreted as between Swellendam
and Riversdale. In modern times, such
plants have only been found much further
east, from the Baviaanskloof in the
Eastern Cape, growing on Table Mountain
Group quartzitic sandstones.
An interesting new collection, EvJ17063 from Rock of Gibraltar, extends the distribution eastwards and may link with var. mzimvubuensis . It has the stem and leaf shape of var. zeyheri, but no vegatative glandular hairs.
This light-green form of A.
cristatus is distinguished by its
lack of aerial roots, and with glandular
hairs on the leaves, inflorescences and
This was found in leaf litter in the shade of thicket vegetation on a
steep slope (intergrading with the typical variety!). Thus it is
a vigorous grower, that does not mind shady conditions.
Var. zeyheri needs to be linked
with a modern, still existent locality.
The type is Zeyher 2571 in K, S &
SAM (which is currently viewable on-line as a tiny thumbnail via Aluka). It does appear to be a good match when compared with modern
Kougaberge collections by Ernst van
Jaarsveld (but it is always difficult
comparing dried and living specimens).
catalogue "Enumeratio Plantarum
Africae Australis" by Ecklon and
Zeyher (1835 -7), only goes up to number
2490. Thus Zeyher must have collected
this after 1833, when he parted company
with Ecklon. From Gunn & Codd
"Botanical Exploration of Southern
Africa" (1981), Zeyher is known to
have spent a lot of time collecting in
the Eastern Cape. It is also clear that
Zeyher never travelled as far east as the
Groot Keirivier, nor further NE, so he
could never have seen var. mzimvubuensis (and Tölken probably never saw var. mzimvubuensis material either).
handwriting looks difficult to read and
with Ecklon, used a system of numbering
localities. Thus there is room for a
mis-understanding about where Zeyher 2571
was collected. Harvey originally
published it in Flora Capensis as
"At the Kinko River", but
"Rocky places on the Kenko Rivier,
east of the Buffeljachts Rivier" now
appears on the SAM 36203! sheet. Recent
searches by the author in this farmland
area were unpromising. However, other
Zeyher plants have apparently been
successfully recollected from the Kinko
River area in recent years.
growing under thicket vegetation in
detritus on steep slopes above the Kouga
Dam. Photo: Chris Rodgerson.
A very attractive (EvJ11201?) form from the Kouga
Dam cliffs, photographed by Ernst van
EvJ7720 from Geelhoutboskloof in the