Mammillaria sp. from the State of Mexico

[Dalesmicro]

It has been along time since I posted anything, but I finally found something new to me. These plants are from near Ixtapan de la Sal, Mexico State, Mexico. They were growing high on a rock wall and I couldn't get very close. It looks like the fruits are pink. Mammillaria backebergiana has been reported from the area, could this be that species? Thank you for your input.

[greenknight]

The spines look more like Mammillaria matudae.

[Licespray]

I like how the first plant is hanging from the edge. Beautiful.

[Dalesmicro]

Thank you for your help greenknight and for your comment Licespray! I wonder how old the hanging cactus is.

[DaveW]

Just shows growing cacti upright in pots is not always mimicking nature.

I knew I had seen a similar plants pictured in the past being grown upside down planted through the drainage hole of the pot.

https://www.pinterest.co.uk/pin/71002131599972418/

https://eu.desertsun.com/story/desert-m ... 576641002/

[Dalesmicro]

Intresting photo DaveW. You are correct that it is important to learn how plants grow in Nature. I have corresponded with one of the world's experts on a group of plants who seldom if ever goes out to the field and could not identify the plants from pictures. There are many plants that are only known from dried, pressed material. It is sad when the "real" plant becomes the dried specimen.

[Edwindwianto]

I knew I had seen a similar plants pictured in the past being grown upside down planted through the drainage hole of the pot.

Interesting...

So when he water his cactus..all the water will run along the cactus body, since it is planted in the drain hole...
Also...when the cactus grow big, it will eventually block that drain hole...

How does he re-pot that cactus?...
The logic says that he had to use the bigest pot possible from when the cactua was young...so that he doesnt have to re-pot that cactus
If he wanted to re-pot, he would have to destroy the old pot and also the new pot in order for the plant to be fit in the new drain hole

It seems to present much more troubles than good

[Licespray]

Just put new drain holes in the side. Simple fix

[cactushobbyman]

A few years ago I did a hanging plant. The plant doesn't require a lot of water, very little leaks out. The pot was broken at the bottom, so why not give it a try. The plant is doing fine.

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b.jpg (44.17 KiB) Viewed 1758 times

[Edwindwianto]

A few years ago I did a hanging plant. The plant doesn't require a lot of water, very little leaks out. The pot was broken at the bottom, so why not give it a try. The plant is doing fine.

Wow, nicely done
You actually did it

Right now, i collect only mexican desert cacti and none of them are upsidedown in the habitat (i think)

[7george]

I also think this is Mammillaria matudae. When grown up these plants start to crawl or hang from the cliffs.

Here is an article about some Mammillaria in habitat.
https://www.grahamcharles.org.uk/Huitzi ... ssue09.pdf

[Edwindwianto]

I also think this is Mammillaria matudae. When grown up these plants start to crawl or hang from the cliffs.

Here is an article about some Mammillaria in habitat.
https://www.grahamcharles.org.uk/Huitzi ... ssue09.pdf

Thanks George for the article
Wow...it contains some Lau's numbers
But why are they missing the genus name?

Like these
Lau 639 theresae = i would guess Mammillaria theresae?
Lau 1091 nana = i would gues Espostoa nana?

Do you have the one for M. herrerae and M. humboldtii in their habitat?

Thanks

EDWIN

[DaveW]

As the article is about Mammillaria's they would not bother to add Mammillaria to the numbers. I would guess Lau 1091 therefore is Mammillaria nana, not Espostoa?

If you want Lau or any other collectors numbers try Ralph Martin's numbers list:-

http://www.fieldnos.bcss.org.uk/

Picture of M. herrerae in habitat here:-

http://www.llifle.com/Encyclopedia/CACT ... a_herrerae

https://mbgecologicalrestoration.wordpr ... ry/mexico/

There are some of M. humboldtii in habitat here if you click on them to enlarge:-

http://www.mammillarias.net/wordpress_u ... dtii&lg=uk

[Edwindwianto]

As the article is about Mammillaria's they would not bother to add Mammillaria to the numbers. I would guess Lau 1091 therefore is Mammillaria nana, not Espostoa?

Thanks Sir for the explanation
And i didnt aware that there was M. nana...hahaha x_x

If you want Lau or any other collectors numbers try Ralph Martin's numbers list:-

http://www.fieldnos.bcss.org.uk/

Ah OK...Lau 1091 is indeed M. nana

Picture of M. herrerae in habitat here:-

http://www.llifle.com/Encyclopedia/CACT ... a_herrerae

https://mbgecologicalrestoration.wordpr ... ry/mexico/

Thanks Sir for all the link

There are some of M. humboldtii in habitat here if you click on them to enlarge:-

http://www.mammillarias.net/wordpress_u ... dtii&lg=uk

Ah...the simplest info like "Root" is missing...and of course, the info about "habitat substrate"...

Thanks anyway Sir, for the link

[DaveW]

Actually testing the PH etc of habitat soils is a comparatively modern event. In the past they just used to state what they thought they were growing on. Hence we then did not know a plant may be growing in an acid PH layer overlying an alkaline PH limestone one etc. There is still little done on the PH of the soils cacti are actually growing in, rather than simply assuming it from the rocks surrounding.