Mammillaria Forum

Discussion Forum about Mammillaria, Coryphantha and Escobaria
 
HomeHome  GalleryGallery  FAQFAQ  SearchSearch  RegisterRegister  Log in  

Share | 
 

 Mammillaria sheldonii fa inaiae

View previous topic View next topic Go down 
AuthorMessage
ento



Number of posts : 105
Age : 64
Location : Vado Ligure - Italy
Registration date : 2009-12-26

PostSubject: Mammillaria sheldonii fa inaiae   Mon Jun 07, 2010 8:48 pm

Mesa Garden seeds, 1999 - Bahia San Carlos

Back to top Go down
View user profile
Chris43
Moderator
Moderator
avatar

Number of posts : 1642
Age : 74
Location : Chinnor, UK
Registration date : 2008-07-16

PostSubject: Re: Mammillaria sheldonii fa inaiae   Mon Jun 07, 2010 10:10 pm

That's interesting, Ento - some straight spines, some curved but not fully hooked. Quite a variable species it seems!

_________________
Chris43, moderator
Back to top Go down
View user profile http://www.woodedge.me.uk/index.html
ento



Number of posts : 105
Age : 64
Location : Vado Ligure - Italy
Registration date : 2009-12-26

PostSubject: Re: Mammillaria sheldonii fa inaiae   Tue Jun 08, 2010 8:17 pm

The first plant have only straight spines, while the second have straight and curved spines. The two plants are from the same sowing
Back to top Go down
View user profile
ento



Number of posts : 105
Age : 64
Location : Vado Ligure - Italy
Registration date : 2009-12-26

PostSubject: Re: Mammillaria sheldonii fa inaiae   Sat Jun 12, 2010 8:56 pm

flowers
Back to top Go down
View user profile
Chris43
Moderator
Moderator
avatar

Number of posts : 1642
Age : 74
Location : Chinnor, UK
Registration date : 2008-07-16

PostSubject: Re: Mammillaria sheldonii fa inaiae   Sun Jun 13, 2010 11:06 am

I do like all the sheldonii / swinglei / iniae / gueldermanniana / guirocobensis plants, their flowers are so good, and vary in colour from dark to light.

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



Number of posts : 2377
Age : 63
Location : Modena - Italia
Registration date : 2009-12-20

PostSubject: Re: Mammillaria sheldonii fa inaiae   Fri Jul 09, 2010 9:14 am

MG 900 from mesa catalogue, is a forma of mammillaria sheldonii.
pilbeam in his mammillaria - the cactus file handbook cita...
referred to mammillaria sheldonii.....
referred or forma?
Back to top Go down
View user profile
Chris43
Moderator
Moderator
avatar

Number of posts : 1642
Age : 74
Location : Chinnor, UK
Registration date : 2008-07-16

PostSubject: Re: Mammillaria sheldonii fa inaiae   Fri Jul 09, 2010 4:48 pm

I think it is a matter of personal choice. Many botanists don't use forma, whereas often horticulturalists and we amateurs will, usually because it adds something to our knowledge of the plant. "forma" is often used to refer to the place where this form of the plant is found, and sometimes it is used to refer to the previous name by which a plant has been known.
So we see names like M. bombycina fma. Colomas, and also M. decipiens fma. Lourdes. But we can also see M. heyderi fma. parrasensis, of of course M. sheldonii fma. swinglei.
Personally, I try to keep my naming somewhat consistent, and will use the fma. mainly to recognise a location, where the plant in question does not have a field number.
For various reasons, I tend to follow Hunt (and so Pilbeam) in species defintions, but do want to recognise earlier names, because for me they add information to the name. As a result, I will use M. bombycina fmal. Colomos, but I would write M. sheldonii 'swinglei'.
In some cases, I also use the field number, so I have plants with names like M. magnimamma Repp. 1139 'saxicola'.

The one thing you can be sure of is that if Pilbeam uses "referred" then he means that it is synonomous with the species name to which it is referred. MG900 is only a catalogue number, but it adds ot the information about the plant, and if it is a distinct form of a species, I can see no reason why you shouldn't use fma. MG900 after M. sheldonii.

I had a quick look at the ICBN, and it seems perfectly "legal" to use forma in any of the ways I have suggested.

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



Number of posts : 2377
Age : 63
Location : Modena - Italia
Registration date : 2009-12-20

PostSubject: Re: Mammillaria sheldonii fa inaiae   Mon Aug 09, 2010 11:51 pm

my sheldonii fa inaiae...






Back to top Go down
View user profile
Chris43
Moderator
Moderator
avatar

Number of posts : 1642
Age : 74
Location : Chinnor, UK
Registration date : 2008-07-16

PostSubject: Re: Mammillaria sheldonii fa inaiae   Wed Aug 11, 2010 9:50 am

Nice photos of a nice plant, Maurillo.
M. sheldonii "iniae" is quite variable. In April, I visited Bahia San Carlos, and saw both straight spined plants and hooked spined plants, and some which had strongly curved spines, but not quite a hook. Some forms of M. sheldonii hardly seem to have a central spine at all.
This variability exists in other species in the Ancistracanthae - for example M. fraileana, M. grahamii and M. albicans - and they make for a nice group of plants. You can understand why different names were given to some of them - guirocobensis; gueldermanniana; iniae and so on.

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



Number of posts : 2377
Age : 63
Location : Modena - Italia
Registration date : 2009-12-20

PostSubject: Re: Mammillaria sheldonii fa inaiae   Wed Jul 04, 2012 8:28 pm

from carlo zanovello collection, a mammillaria sheldonii "inaiae" with hooked central spines and another one with straight central spines.
from baja san carlos.


















Back to top Go down
View user profile
Sponsored content




PostSubject: Re: Mammillaria sheldonii fa inaiae   

Back to top Go down
 
Mammillaria sheldonii fa inaiae
View previous topic View next topic Back to top 
Page 1 of 1
 Similar topics
-
» Mammillaria sheldonii fa inaiae
» Mammillaria inaiae
» Mammillaria gueldemanniana
» Mexico trip - part 9
» Mammillaria sheldonii

Permissions in this forum:You cannot reply to topics in this forum
Mammillaria Forum :: PHOTO GALLERY :: Photo Gallery-
Jump to: