Knersvlakte Archives - Page 2 of 3

Monilaria moniliformis (part 1 of 2)

Once you know that monile is the Latin word for a string of pearls and monilaria means a collection of strings of pearl, this repetitive tongue twister of a name may begin to make more sense.
But let’s forget about the name and look at the plants themselves.

The branches consist of flattish, rounded segments and may become up to 20 cm tall.
The flowers are to 4.5 cm in diameter, usually white (sometimes with a yellow tinge), with white, orange or purple filaments*.
They have a long stalk (to 10 cm tall), appear in July-August and are highly scented.
As a rule the plants grow fully exposed in loamy soil on quartz patches in the southernmost part of the Knersvlakte.
According to “MESEMBS OF THE WORLD”, Monilaria plants are very long-lived, possibly centuries.

* the thread-like part of the stamen

All pictures shown here were taken late July 2017.

Antimima fenestrata (part 1 of 2)

This is the last of the Antimima trio I mentioned before (see A. evoluta and A. turneriana).
The plants are unlike any other succulent (although when I saw them first, they strangely enough reminded me of Mammillaria saboae) and form attractive compact shrublets to 12 cm tall, looking like a miniature tree.
The mauve to magenta flowers are 1.5 cm in diameter and appear in June-July.

To be found on limestone outcrops with marble on the southern Knersvlakte.

Antimima turneriana

This is the second member of the Antimima trio that I mentioned in the preceding post (Antimima evoluta).
These plants forms compact clumps up to 5 cm tall.
The leaves are up to 1.5 cm long and 0.8 cm wide and thick, keeled and with tough and hard margins; usually with convex sides.
Usually the flowers come in threes but sometimes they are solitary. They are pinkish-purple and 1.8 cm in diameter; they appear in June-July ( photographed 23 July 2017).

Occurring in crevices of white quartz, marble or limestone on the southern Knersvlakte.

Antimima evoluta

During my second trip this year to Namaqualand, I came across a trio of interesting and beautiful Antimimas which I had never seen in the wild before. Two of the 3 (A. fenestrata and A. turneriana) were in flower, but the one pictured here flowers in October and had only just woken up by the looks of it. All the plants were growing on low limestone hills in a spot maybe 100×100 m.

Antimima evoluta forms rounded clumps up to 5 cm tall, consisting of bodies about 4 mm long and wide.
At the end of the growing period, the pairs of old leaves dry up and form a white sheath protecting the new pairs during the hot and dry resting period.
In October the plants are decorated with magenta flowers up to 1.7 mm in diameter.

The species occurs on the Knersvlakte, extending eastwards to Loeriesfontein, and grows in crevices on slopes of white quartz or limestone mixed with marble.

Pictures taken 26th July 2017

Conophytum calculus ssp. calculus

The Latin word calculus means pebble and in this case probably refers to both the roundness and the firmness of the plant bodies.
These bodies are to 30 mm diameter, ball- to barrel-shaped, very firm, whitish-green to pale yellowish-green, without any markings; they form a hemisphere with age.
The flowers are open at night (sometimes staying open during cool mornings) and are said to smell strongly like cloves or carnations; they are golden yellow to deep reddish orange and appear in April-June.
The plants occur in full sun on salty quartz flats and gentle slopes in the Knersvlakte.

First picture taken 10th Sept. 2010; others 12th May 2017

Argyroderma delaetii (part 1 of 2)

No less than 25 synoniems have been recorded for this species, so it will come as no surprise that it is quite variable.
As a rule, the plants consist of only one pair of leaves, rarely 2 or 3. These leaf-pairs are 20-50 mm long and 15-30 mm wide, sunken into the ground. Old leaves stay on the plants for 1 or 2 years.
The flowers appear in April – June; they are 20-50 mm in diameter and may be white, pink, red , magenta, or yellow (see part 2). Even within one population one can come across all these colours.
The plants are locally abundant on flats or slopes rich in quartz pebbles in the Vanrhynsdorp area.

The first 3 pictures were taken on 30 March 2012, # 4 early next morning. Last one: 3 Sept. 2010

Crassula alpestris ssp. massonii

Four of the six species belonging to the section Columnares of Crassula are more or less well known (barklyi, congesta, pyramidalis and -of course- columnaris).
One other (C. multiceps) I have never even seen and the subject of this post is not widely known either.

It is a small, more or less erect plant, 8-25 cm tall when in flower, sometimes with several short branches at the base. The green to brown leaves are normally all about the same length (usually 5-8 mm but sometimes to 1.5 cm). They often covered with sand particles.
In September-November, the main stem bears many small rounded inflorescences on the upper part of the flower stalk.

The plants occur from Vanrhynsdorp to Calvinia, Worcester and Montagu on sandy or gravelly slopes (often facing south).

Oophytum oviforme

Old plants of this species form clumps with up to 20 egg-shaped (=oviform) bodies, which are 1-2 cm tall and 1-3 cm in diameter.
Especially when flowering, the very dense stands in which they grow present an unbelievable show. The white to rose-pink flowers appear in August-September.

The plants occur on quartzitic flats and slopes in the southern Knersvlakte, where the rainfall is on average about 125 mm per year (mainly in winter).

oophDSC_0110

oophDSC_0111

oophovif-2530

oophovif-2533

oophovif-2539

Tylecodon pearsonii

Attractive dwarf shrublets up to 15 cm tall with a caudiciform base up to 3.5 cm in diameter.
Branches are short and fat, with peeling yellow-brown bark; covered with flat white phyllopodia (leaf-bases) when young. The leaves are usually up to 4 cm long and 5-7 mm wide.
The flowers are tubular, erectly spreading to pendulous and relatively large (up to 1.8 cm long). They appear in November and December.

This species is widely distributed from southwest Namibia to the Knersvlakte, on flats and stony slopes, often with quartz rocks or pebbles.
Rainfall in the area is 100-200 mm per year, mainly in winter. The temperatures are high in summer and moderate in winter, sometimes with light frost.