delosperma & aizoaceae

[Palustris]

I grew this from seed labelled D. sutherlandii. Now the D. sutherlandii I bought has purple coloured flowers. These are definitely not purple.

[Peter II]

Hi palustris,

forget the name Delosperma sutherlandii. NOBODY has this plant. Although now some people bite rage in the table edge. Everything that is offered under this name is Delosperma ashtonii hybrids.
What your 'Peach Star' really is, nobody knows. Probably this is a selection of D. ashtonii hybrid.

[Palustris]

Thanks. I thought as much, but nice to have it confirmed.

[Peter II]

Delosperma rogersii x robustum

Wonderfully shining golden flowers.

[Great Moravian]

Several months ago Christoph Schroeder suggested in a personal mailing the absurdity of the alleged presence of 25 nectaries
in Delosperma sphalmanthoides .
The attached unsharp images demonstrate the following.
1. The species has 5 groups of parallel petaloid staminodes as can be observed in Ruschia too.
2. The species has a holonectarium positioned laterally on ovary.
3. Elongated upper parts of carpels, supporting large plumose stigmata in the earlier stage of flowering, are freely divaricate.
Despite the images I cannot decide to which genus the species belongs.
As observed by Christoph Schroeder, it certainly doesn't belong to Delosperma.

[Great Moravian]

Marek Chaloupka photographed the strange Delosperma ashtonii
provided to us by Panayoti Kelaidis.

click to enlarge
It has distinctly acuminate leaves and the purple staminodes are broad
and arranged in two crowns, the outer one is formed by tapering
staminodes whereas the inner one by excised non-tapering
staminodes. The distal part of the latter is not adpressed to the former.
So the flowers are seemingly doubled.
The white inner staminodes are non-tapering and excised too.
The hypanthium top doesn't differ from Delosperma ashtonii
depicted below. The holotype of Delosperma galpinii
has similarly excised inner staminodes and leaves of rather
variable shape. So my preliminary guess is
Delosperma galpinii.
The plant below which I think is Delosperma ashtonii has
tapering staminodes which cannot be separated in
two distinct groups, the white staminodes are filiform,
and leaves are obtuse to acute, but not acuminate.

click to enlarge
The original image of Delosperma ashtonii shows a plant
whose leaves are not acuminate, the staminodes cannot
be separated in two distinct groups, are tapering,
nevertheless the median ones are slightly excised.
So the holotype of Delosperma ashtonii is somewhere
between  the two plants depicted above, but closer to
the latter.

click to enlarge
Kelaidis=galpinii, Pavelka=deleeuwiae, Yuccaland=ashtonii

[Great Moravian]

Images of Delosperma aff. hirtum by Marek Chaloupka.
A detailed one.
   click to enlarge
A large flower.
   click to enlarge
A plant of the second generation. It reproduces truly from seeds, it is my experience too,
but merely few seeds germinate. Hence I cannot exclude apomixy.
At the beginning of flowering the flower is small and the center
is green and not translucent.
   click to enlarge
Capsules are distinct, carpels 6-7, the whole triangular halves of valves
are elevated which is an uncommon feature in Delosperma.
   click to enlarge
According to its collectors, the population is constant in vegetative characters,
but the large flowers are differently coloured, white, pink, salmon or purple,
concolorous or having paler eye. The grandparents of our plants
photographed by Mrs and Mr Holzbecher in Lesotho looked out as follows.
   click to enlarge
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Their grandchildren in cultivation aren't different.
Named Delosperma holzbecherorum by me recently, but
it is not recommended to use the binomial prior to its
acceptance by botanists.

[Great Moravian]

The identification of a white flowered Delosperma from northern Lesotho and Natal under D. hirtum is relating to Elsa Pooley in Mountain Flowers - A Field Guide to the Flora of the Drakensberg and Lesotho (2003: 72-73) and based on the unpublished description of D. hirtum var. niveum by Mary Gwendoline O'Connor-Fenton (née Lavis) - see also BOL131458;; BOL131459; BOL131460; BOL131461; BOL131462 and BOL131463 (with a on a certain Facebook entry). Both Ladies were erroneously identifying this species under D. hirtum, but representing rather a southern white flowered variety of D. carolinense N.E. Brown.
Hermann Jacobsen also published a photo (taken by K. Josefský) of the white flowered variety of D. carolinense erroneously twice under D. brunnthaleri (Jacobsen: Die Sukkulenten 1933: 112 & Handbuch der sukkulenten Pflanzen III 1955: 1307).

Christoph,
In my opinion, plants in cultivation should possess botanical names.
You should therefore validly publish the proposed combination
Delosperma carolinense var. niveum.
Otherwise I shall do it.
Nevertheless, my preference is publication by you.

[Great Moravian]

Browsing internet I found the following miracle.
http://www.hofer-stauden.it/de/pflanzensortiment/grundsortiment/194-delosperma-alpinum-sani-pass.html

[Martin Tversted]

There can be a huge variation among flower sizes and even flower colors among Delospermas when you sow enough of them. That some are bigger or smaller is just a matter of sowing a lot of plants.

Martin

[Great Moravian]

Under construction
The genuine nuggetoid,  which was named by me Malotigena frantiskae-niederlovae
recently, has greyish-green leaves arranged in rosettes, conical caducous capsules,
and pedicels tightly enclosed between bracts.
Furthermore, it has linear-oblong applanate bladder cells arranged transversally
on lower and upper surface of leaves.
In an earlier message in the thread linked below I mentioned a plant similar to the
nuggetoid but having yellowish-green leaves arranged in short compact columns,
globose persistent capsules, and loose pedicels.
Furthermore, it has no bladder cells on the lower and upper surface of leaves, except
on margins and keels, which are circular and forming ciliae. Instead, epidermis
is structured to irregular multicellular formations.
It is probably a garden hybrid between Malotigena and Delosperma.
Its images by Marek Chaloupka posted below are considerably better.

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http://www.srgc.net/forum/index.php?topic=3795.msg210648;topicseen#msg210648

[Great Moravian]

Delosperma sutherlandii images can be found in South African ispot forum.
http://www.ispot.org.za/node/180457                               
http://www.ispot.org.za/node/155045

[Great Moravian]

'Diamantové doly 3000m' was named Delosperma adamantinum by me recently.
It is not recommended to use the binomial
prior to its acceptance by botanists.

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Its showy flowers are reminescent of the maritime species Disphyma crassifolium,
but its leaves are papillose and its capsules are without covering membranes.
My typus-providing plant depicted above is cultivated in a slightly shaded place.
Marek Chaloupka photographed a fairly compact plant
nevertheless apparently conspecific.

click to enlarge

[Great Moravian]

'Menoaneng 3000m' was named Delosperma parentum by me recently.
It is not recommended to use the binomial prior to its
acceptance by botanists.

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Characteristic are broad leaves which are widest at 2/3 of their length, having a dense row of
enlarged bladder cells on the margin, all bladder cells being low,
arranged densely on short shoots.

[Great Moravian]

'Hogan' was named Delosperma seanii-hoganii by me recently.
It is not recommended to use the binomial prior to its
acceptance by botanists.

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