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#1
Current Photographs / Re: December 2024
Yesterday at 11:18:05 AM
@Too Many Plants! The discussion between myself and an other became somewhat heated and derailed your OP.

@Martin Bohnet & others that read it, my apologies.

@Too Many Plants! Yes for our Spring flowering Iridaceae I've noticed that on occasions the flowers have bleached streaks on the tepals. In habitat that happens when it is hot and dry (both air and soil).
It is worth remembering that in the hot dry areas plants flower early. In the Tanqua Karoo most flowering is over by mid winter before it starts to warm up.
Some shade - from distant trees or even directly overhead (no more than 40%) is beneficial. Even here I have planted trees on the western side of the growing area to provide some coolness in the afternoon.

You're doing a great job growing what are considered difficult plants.
#2
Current Photographs / Re: December 2024
Yesterday at 01:18:17 AM
@CG100 Two things:

The plant in the OP is growing in the full sun. It looks to be even sunnier than the habitat of most winter rainfall geophytes here in RSA.
So safe to say that foliage is not etiolated.

Gethyllis linearis is one of the more distinctive taxa in the genus. It occurs in a relatively small area and is easily recognised. The pics in Graham's book are of single plants. It is very rare to find single plants in habitat. The link I posted is typical. A single plant will look more tightly coiled.
The leaves in the OP are completely different to those of linearis. It is definitely not linearis.
#3
Current Photographs / Re: December 2024
December 19, 2024, 10:52:14 PM
@Too Many Plants! Whilst your plant is very possibly a Gethyllis, I would like to see more defining characters (not just leaves) and especially flowers to be sure.

What I can say is that it is not Gethyllis linearis.

This is Gethyllis linearis
https://www.inaturalist.org/observations/128625433

#4
Current Photographs / Re: December 2024
December 19, 2024, 12:07:02 AM
That looks more like an Albuca or similar.

Gethyllis linearis has narrow ribbon-like leaves whereas those are hemiterete and grooved at the base.
#5
Moraea pritzelliana
#6
User Profiles / Re: Boophone
December 03, 2024, 08:55:16 AM
Humans have a capsaicin receptor known as the Transient Receptor Potential Vanilloid 1 (TRPV1) receptor:

That's why it burns
#7
User Profiles / Re: Boophone
December 02, 2024, 11:10:10 PM
Quote from: CG100 on December 02, 2024, 08:11:16 AM
Quote from: Arnold on December 02, 2024, 06:00:40 AMIt's always been a mystery to me how some plant material is toxic to one species and innocuous to other.

Mostly it is just a quirk of genetics, what a digestive, or other system, has evolved with.

Humans are one of the very few animals that can safely eat avocado.
A common wormer for dogs - avamectin, a secretion of some moulds - is toxic to a few breeds (such as dalmatians) as they lack a particular enzyme.
Some protective chemicals in plants are enjoyed by some animals - the characteritic flavours in brassicas are insect repellants.
No snake really wants to kill a human, but unluckily for us, many can hit you with a bite that delivers enough toxins to kill you many times over.
Many caucasians retain an ability to digest lactose into adulthood, but very many races do not - dairy food are not popular in the Far East, and elsewhere.
My father was untroubled by stinging nettles (something that I did not inherit, unfortunately).
Capsaicin is loved by many humans, and you can certainly become progressively immune to it to some degree. It has no effect on many, if not all, birds.
Birds do not have receptors for capsaicin. Capsicum is distributed by mostly frugivorous birds although opportunists are definitely involved as well.
The seeds of Capsicum are not able to withstand chewing, hence Capsaicin being irritant to mammals - to the point that you will vomit if you consume large quantities thereof.
#8
Current Photographs / Re: NOVEMBER 2024
December 02, 2024, 11:04:50 PM
Off the bat: Gethyllis ciliaris subsp longituba, although a named entity, is not a discrete taxon. The length of the tube is influenced by environmental conditions and is not genetic. We have found that the tube length varies from the size and vigour of the bulb to the light and cannot be correlated to any pollinator either.

Having said all that: your plant is Gethyllis villosa. Gethyllis ciliaris has glabrous leaves with a ciliate margin.
#9
User Profiles / Re: Boophone
December 02, 2024, 05:19:21 AM
Here's the grasshopper. I must say ours are more red than black though and excrete brown foam.

https://en.m.wikipedia.org/wiki/Dictyophorus_spumans
#10
General Discussion / Re: Trachyandra Tortilis help ???
December 01, 2024, 11:49:01 PM
You're welcome :)

Full sun. Otherwise the foliage is less contorted and more just a succulent strap!
#11
User Profiles / Re: Boophone
December 01, 2024, 10:31:44 PM
The leaves are devoured by a red chunky grasshopper (I always thought it was a locust as it is rather large - two to three inches long) - I think it's called a red and black foaming grasshopper. It accumulates the toxins and secretes them from behind the thorax as a brown foam. If you have ever smelled Melianthus major foliage the smell is identical! We have them in our garden and it's a constant mission to catch and relocate them - I use kitchen tongs - they will destroy Clivia, Crinum etc in a day.
We adopted a young Africanis and she has a prey drive second to none - anything that moves is prey! She used to catch and maul them. After about the tenth victim she was retching uncontrollably. When she sees them now she barks incessantly so that I investigate and remove them. If not she paws them until they are disabled :o

But those are babies! I have seen clumps of bulbs north of Kleinsee on the plain between Brand se Baai and Koekenaap where the individual bulbs were 40cm in diameter! They were growing with gigantic Euphorbia tuberculata that were a habitat themselves for all manner of lizards, snakes and invertebrates. A beautiful stunning habitat that is luckily protected now as it is in the envelope of a wind turbine farm.

It's one of those places that creeps into your very being. You can't escape the feeling of ancient. It speaks to you in so many ways.
Whilst conducting search and rescue of all geophytes and succulents for the Sere Wind farm I was fortunate to be there for two successive growing seasons. Something that will always stay with me is a sense of connection with not only the landscape but the ancient people that inhabited it.
During operations we found a previously undocumented shell midden. Apart from the usual remains of shellfish shells and broken ostrich eggs, tortoise carapaces and the who's who of bones there was a stone. Not a discarded stone tool but a beautiful elliptical flattened stone - clearly polished by wave action - that was unlike anything I had seen around there. It was a rich copper brown with darker spots. It was singularly beautiful and lay in stark contrast to the bleached discards of the daily struggle. I kept it. It always reminds me that people are people. I always imagine someone being captivated by it and despite having to slog a considerable distance up a steep slope carrying a heavy bag of essential food to their camp, this object was beautiful and a treasure.
#12
General Discussion / Re: Trachyandra Tortilis help ???
December 01, 2024, 09:42:44 PM
It should fit right in! You grow various other geophytes from the winter rainfall region of South Africa so this will not pose a problem.

It is from somewhat arid areas so it will definitely grow in your garden. It's a greenhouse plant in cold wet Europe.
#13
Current Photographs / Re: NOVEMBER 2024
November 18, 2024, 10:16:05 PM
I heard my name! ;D
Veltheimia capensis is a widespread taxon occurring in winter rain and borderline winter/summer rain. Always somewhat xeric though.

I have seen it near Hutchinson (close to Victoria West) where it grew on dolerite tors with various Lamiaceae and other herbaceous shrubs close to Rock Hyrax dens. The leaves were narrow, slightly undulate, dark green with a light glaucous bloom, short peduncle (approx 20cm) and a small almost capitate inflorescence of slightly curved red flowers. They looked like a miniature version of the coastal form of V. bracteata. BTW this location was so cold at night that a 1.5 liter bottle of water that I left in the foot well of my vehicle froze solid overnight.

In the Western/Moordenaars Karoo I saw small very striking variants. They were growing in dwarf grassy scrub - only the inflorescences were visible. The entire inflorescence was 20cm tall with bright red flowers! The leaves were very narrow - conduplicate with undulate margins, very dark grey-blue glaucous. A very striking sight against the bleak grass. I passed by these plants almost everyday and was lucky to collect seeds (11!). They grew incredibly slowly and every year there was less until none remained. This location was also bitterly cold - I know because my vehicle sank up to the axles in quickmud below a dolerite dyke and I was stuck overnight.

In Hex River Pass were the most spectacular plants. The leaves were very broad like some forms of V. bracteata and a beautiful powder grey. Inflorescences were tall (50cm) and the flowers bright pink - they looked like a very robust V. bracteata. They were growing on a steep cutting in quartzitic sandstone scree in an ecotone between karroid scrub and Protea dominated fynbos. Sadly all poached.

At the southern end of Piekenierskloof Pass were plants very similar to the Western/Moordenaars Karoo plants except a bit more robust and flowers more pink than red. Similar plants are to be found in Malmesbury growing on granite but always under woody shrubs in the shade.

There is only one recognised variable species with all the variations grading into each other. If you made collections of each of the various extremities of the cline and never saw the gradient i.e seen in isolation, one would be inclined to view them as different. But they are best viewed as a single variable species: Veltheimia capensis
#14
Mystery Bulbs / Re: Ledebouria Agavoides help/???
October 30, 2024, 11:13:57 PM
Hi @Uli 

I have found that generally Cyrtanthus grow well when grown im morning only sun. Because they have such papyraceous tunics I find that overheating of the bulbs is a major contributor to poor performance - the bulbs either cook or they lose all their roots.

Cyrtanthus falcatus is no exception. It is a cliff grower and it's roots are in cool crevices that are well drained. Unlike C. montanus and sanguineus that grow in horizontal cracks and fissures, falcatus grows in more vertical cracks and fissures.

My falcatus were all in 35cm diameter pots in a loose, rich well-draining medium topped with a layer of fine sharp grit to keep the medium from separating during watering. The bulbs sit on top with their roots and basal plates protected.

They were grown under 50% shade cloth permanently - no rain cover. They performed very well however I found that flowering was increased exponentially if they were kept dry during winter. I covered the pots with large plastic bags and on dry warm days would open them to air, closing up if rain was imminent.

Why don't you post some pics and create a separate post where we can discuss Cyrtanthus ;) ;D .
Cheers
#15
Mystery Bulbs / Re: Ledebouria Agavoides help/???
October 28, 2024, 10:51:27 PM
It'll be fine. All the Ledebouria and other summer rain bulbs I've grown have all been exposed to our winter rain and never suffered.