Mammillaria Society Forum
Would you like to react to this message? Create an account in a few clicks or log in to continue.
Mammillaria Society Forum

Discussion Forum about Mammillaria, Coryphantha and Escobaria
 
HomeHome  GalleryGallery  SearchSearch  Latest imagesLatest images  RegisterRegister  Log in  

 

 Identification - help needed, please

Go down 
3 posters
AuthorMessage
Chris43
Moderator
Moderator
Chris43


Number of posts : 1872
Age : 80
Location : Chinnor, UK
Registration date : 2008-07-16

Identification - help needed, please Empty
PostSubject: Identification - help needed, please   Identification - help needed, please Icon_minitimeWed Jun 05, 2013 3:39 pm

I bought this plant earlier this year, and all the description it had was Mammillaria sp.Rog 095, N. of Escondida, NL. Herr Rogozinski's field list has (melispina??) by this entry.

According to Craig, M. melispina has yellow central spines, but no radial spines, and naked axils, though with some wool when young, and citron-yellow flowers. Fairly clearly this plant doesn't match that description.

Identification - help needed, please P6052110

The flowers look a bit like melanocentra, but it has two central spines, and the radial spines are not strong, as per the description for that species. It also has both some wool and a few bristles in the axil, again unlike that species. The older axils lose the wool, but not the few bristles.

Identification - help needed, please P6052111

I can't equate it to any obvious species, so clearly am missing something. Can anyone help me?

_________________
Chris43, moderator
Back to top Go down
http://www.woodedge.me.uk/index.html
delandmo




Number of posts : 345
Age : 77
Location : Sutton, Surrey.
Registration date : 2011-06-05

Identification - help needed, please Empty
PostSubject: Re: Identification - help needed, please   Identification - help needed, please Icon_minitimeWed Jun 05, 2013 6:43 pm

Hi Chris,

Just wondered with the two centrals, maybe m. melanocentra ssp. rubrograndis.
Back to top Go down
Chris43
Moderator
Moderator
Chris43


Number of posts : 1872
Age : 80
Location : Chinnor, UK
Registration date : 2008-07-16

Identification - help needed, please Empty
PostSubject: Re: Identification - help needed, please   Identification - help needed, please Icon_minitimeWed Jun 05, 2013 7:15 pm

I'd be tempted to agree with you on that, if it weren't for the small flowers (rubrograndis are 4cm long, 4.5cm wide, whereas these are quite small; that the radial spine count is much less, and it isn't supposed to have bristles in the axils.

Mind you, I'm not sure just how "significant" these are, or how variable rubrograndis might be. So you could well be right.


_________________
Chris43, moderator
Back to top Go down
http://www.woodedge.me.uk/index.html
maurillio




Number of posts : 2986
Age : 69
Location : Modena - Italia
Registration date : 2009-12-20

Identification - help needed, please Empty
PostSubject: Re: Identification - help needed, please   Identification - help needed, please Icon_minitimeThu Jun 06, 2013 6:43 pm

This is my suggestion.....

Identification - help needed, please -2013013



Identification - help needed, please -2013014



Identification - help needed, please -2013015
Back to top Go down
Chris43
Moderator
Moderator
Chris43


Number of posts : 1872
Age : 80
Location : Chinnor, UK
Registration date : 2008-07-16

Identification - help needed, please Empty
PostSubject: Re: Identification - help needed, please   Identification - help needed, please Icon_minitimeThu Jun 06, 2013 7:29 pm

OK, Maurillio, but I can't see a name! It looks like polyedra?

There are distinct similarities, though my plant doesn't look like is an offsetting species.

_________________
Chris43, moderator
Back to top Go down
http://www.woodedge.me.uk/index.html
maurillio




Number of posts : 2986
Age : 69
Location : Modena - Italia
Registration date : 2009-12-20

Identification - help needed, please Empty
PostSubject: Re: Identification - help needed, please   Identification - help needed, please Icon_minitimeThu Jun 06, 2013 8:23 pm

Yes, Mammillaria polyedra.
Today looking at my plants, i thought only the spination.
I would like to be useful to you but.....
You are correct.
Your plant is not offsetting and flowers are different.
Back to top Go down
Chris43
Moderator
Moderator
Chris43


Number of posts : 1872
Age : 80
Location : Chinnor, UK
Registration date : 2008-07-16

Identification - help needed, please Empty
PostSubject: Re: Identification - help needed, please   Identification - help needed, please Icon_minitimeThu Jun 06, 2013 9:37 pm

Also, if the habitat info I have on this plant is right, it is a long way from M. polyhedra habitats.

Thanks anyway,

_________________
Chris43, moderator
Back to top Go down
http://www.woodedge.me.uk/index.html
maurillio




Number of posts : 2986
Age : 69
Location : Modena - Italia
Registration date : 2009-12-20

Identification - help needed, please Empty
PostSubject: Re: Identification - help needed, please   Identification - help needed, please Icon_minitimeFri Jun 07, 2013 6:55 pm

This is casoi FO 115 from oaxaca...

Identification - help needed, please Dsc_0110
Back to top Go down
Chris43
Moderator
Moderator
Chris43


Number of posts : 1872
Age : 80
Location : Chinnor, UK
Registration date : 2008-07-16

Identification - help needed, please Empty
PostSubject: Re: Identification - help needed, please   Identification - help needed, please Icon_minitimeFri Jun 07, 2013 7:03 pm

Nice plant, Maurillo, but not the one. M. casoi has few, if any radial spines, and flowers that are all pink. It also comes from Oaxaca, and about 1000km from Escondida, Nuevo Leon.

Its interesting how similar the two plants are, though casoi has much longer axillary bristles.

I'm assuming that my plant was correctly label led. It came from Rogozinski's collection, so I hope so.

_________________
Chris43, moderator
Back to top Go down
http://www.woodedge.me.uk/index.html
maurillio




Number of posts : 2986
Age : 69
Location : Modena - Italia
Registration date : 2009-12-20

Identification - help needed, please Empty
PostSubject: Re: Identification - help needed, please   Identification - help needed, please Icon_minitimeFri Jun 07, 2013 7:11 pm

ok.
To next game.
Back to top Go down
Chris43
Moderator
Moderator
Chris43


Number of posts : 1872
Age : 80
Location : Chinnor, UK
Registration date : 2008-07-16

Identification - help needed, please Empty
PostSubject: Re: Identification - help needed, please   Identification - help needed, please Icon_minitimeFri Jun 07, 2013 8:20 pm

I think that it just has to be a form of M. melanocentra, whether rubrograndis or just plain melanocentra.

I suspect that this species is quite variable, and in places it probably intergrades between melanocentra and rubrograndis.

For now that is how I shall think about it. There isn't anything else in that area that it would be close to other than melanocentra. Its not a compressa or a magnimamma form, I think, nor a winterae, and apart from these, there are only heyderi and Formosa forms left to choose from, I think, and I doubt its one of these.

_________________
Chris43, moderator
Back to top Go down
http://www.woodedge.me.uk/index.html
Sponsored content





Identification - help needed, please Empty
PostSubject: Re: Identification - help needed, please   Identification - help needed, please Icon_minitime

Back to top Go down
 
Identification - help needed, please
Back to top 
Page 1 of 1
 Similar topics
-
» Identification needed on this specimen.
» identification needed from italy......
» Help please, ID needed
» Mamm ID needed
» Help needed with this mammillaria

Permissions in this forum:You cannot reply to topics in this forum
Mammillaria Society Forum :: MAIN SECTION :: Identification-
Jump to: