J.v.R.


 

The various forms of Agave parryi – part 9

Wim Alsemgeest en Jos van Roosbroeck.

 The related and no related species

A closer look at Agave ovatifolia

Variegated Agave ovatifolia in Natur! photo from Eunice Thompson (Thank you Eunice)

This specie is described in 2002 by  G.D.Starr & J.A.Villarreal  Agave ovatifolia  the whale tongue.
These agave referents to the short broad leaf and folded end. De plant was in the past collected and distributed by  Mrs. Anna Nickels under the inland name A. noah,
Trelease do the mentation that the  Missouri Botanical Garden receive two plants  from Dr. Engelmann under the name  A. wislizeni  and A. noah, the derived from  and Dr.Engelman receive the plants from Mrs. Nickels .
In his “Revision of the Agaves of the group Applanatae” Plate 79 publishes  Trelease from both plants  one leave and an complete plant named as  A. wislizeni, named to  F.A.Wislizenus.The plant is the now new described  as A. ovatifolia. The name A. Wislizeni no longer be used t because of  Engelmann used the name  earlier for A. scabra.We reed much that the plant is related to A. parrasana. Bud the leaves from A.  ovatifolia is much thinner pliable and the end spike is much thinner also. The rosette is much open wider, the flowers have no bracts like by A. parrasana. The plants crowing more solitaire so we find the specie more related to A. parryi.

Not related species

Three  agaves from the hi mountains  (til 2500m.) are by our opinium not related to the A. parryanae
That we still used these plants by this article is because Gentry placed also A. parrasana by the  Parryanae- but we see these three species more separated in the new group of  : Parrasanae.

Parrasanae groep
These group of plants haze closely imbricated bracts.
Gentry declare the next words in these days only for A. macroculmis now A. gentryi):
“the bunching of bracts appears to be an adaptation preventing cold injury to the growing bud initial”.
The nexst plants are joust by that group now.
A. parrasana
A. montana
A. gentryi

Bertus Spee by the A.parrasana parras the la Fuente photo Michael Greuhlich

Agave parrasana
This specie is described in 1906 by
Alwin Berger. This beautiful compact specie seen we very much in collections. The plant start flowering in an very young age Also is the plant simply to recognized because the leaves standing always trait .The leaves are short fat and stiff and haze an nice blue-gray color the largest side spikes standing closely by the end spike The flower stalk start growing in the end of the summer is protect in the wintertime because of the cold predictive bracts and in the spring start the flower stalk with still coin on.
Also in Culture is the plant easy recognized because of the standing vertical leaves.

Agave gentryi with Kees van Berkel at the site between Galeana en La ascension

2 A. gentryi
These agave is by Gentry placed by the group of Salmianae with the name A. macroculmis, based on the fat succulent flowers. Bernd Ullrich changing the name in A. gentryi because the name macroculmis youst by  Todaro (1889 en 1980), was  synonym for A. atrovirens.
In the Sierra de Parras in south Coahuila, on level till 2800 m with in wintertime snow and low tempeture grows A. gentry together with  A. parrasana.  That means that these plants are very winter hardy  The plants growing therefor also in England outside in free culture outside! ( Paul Spracklin)


Agave gentryi with very broad leaves

Bernd Ullrich doubted if A. gentry belongs to the  Salmianae groep!
Also we have found this specie in nature. The plant make no or seldom Stallone even so is that by A. montana, where the plant very clos related by is.
In an artikel of José A.Villarreal we reed also that A. montana closely related is with  A. gentryi and  A. parrasana.
The flower stalk is protected in wintertime  by his bractsmake no Stallone’s.
The leaves are very broad we have found an very nice population on the Mex 61 between Galeana and La Ascension in the sierra El Tescrero the plants growing there together with A.asperima also we have find hybrids between A. gentry and A. asperima. There is a very nice form in circulation with the name “Jaws” with very big teeds! Al these plants growing only very hi in mountains these days easy to get there because of the new telephone stations. Except Coahuila, grows the plants also in the state of Nuevo Leon. The plant is described in Succulenta 1990 p.210 by Bernd Ullrich. She belongs to the bicker plants.

 

Agave montana with Wim, North of Miquihuana Tamaulipas

3. Agave montana
These agave is described in 1996 by  J.A.Villarreal;  is closely related to  A. gentryi and A. parrasana.  All these plants have an flower stalk protected in wintertime. With concave bracts.
The growing conditions are the same as A. gentryi.
Agave montana is different from A. gentryi  by his compacter rosette The make no Stallone’s and much more leaves the type site is North of  Miquihuana in the state of Tamaulipas above e 2500 meter

An farmer cut the flowerstalk as food for his animals I

n 2009 we have find a new site between Siberia and Zaragossa in the state Nuevo Leon. Here you found A. montana as wel A. gentryi together . In the time we were there was a farmer busy to cut off a flower stalk as food for his animals So here make the plants oft Stallone’s normal not!

So this is the end of our study round the Agave  Parryanae

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