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The last populations of Parodia rechensis (Buining) F. H. Brandt

Authors:

Abstract

We report our search in Brazil for plants of Parodia rechensis in habitat. The plant, which is better known as Notocactus rechensis, is difficult to keep in cultivation and its future in nature is also in doubt.
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The Cactus Explorer ISSN 2048-0482 Number 5 August 2012
The lasT populaTions of
Parodia rechensis (Buining) f. h. BrandT
Giovanna Anceschi & Alberto Magli report on their search for plants of Parodia
rechensis in habitat. The plant, which is be=er known as Notocactus rechensis, is
difficult to keep in cultivation and its future in nature is also in doubt.
Fig.1 Parodia rechensis. Brazil, Rio Grande do Sul, Caxias do Sul, Ana Rech, 16 Nov 2011, AM 821
Photo: Anceschi & Magli
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Number 5 August 2012 ISSN 2048-0482 The Cactus Explorer
Fig.2 Habitat of Parodia rechensis and Parodia linkii.
View from the margins of Represa do Faxinal, Ana Rech
(Celli Marchett 2008, 64: ANEXO XII, Fig.F.)
Fig.3 Parodia rechensis. Ana Rech,
Reprensa do Faxinal, 3 Nov 2009
F. Celli Marchett
F. Celli Marchet
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The Cactus Explorer ISSN 2048-0482 Number 5 August 2012
Fig.4 Parodia linkii. Ana Rech, 16 Nov 2011, AM 822
Fig.5 Parodia rechensis. Ana Rech,
16 Nov 2011, AM 821
Fig.6 Parodia rechensis. Ana Rech,
16 Nov 2011, AM 821
Fig.7 Parodia rechensis. Ana Rech,
16 Nov 2011, AM 821
Photo: Anceschi & MagliPhoto: Anceschi & Magli
Photo: Anceschi & MagliPhoto: Anceschi & Magli
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Number 5 August 2012 ISSN 2048-0482 The Cactus Explorer
Fig.8 Parodia rechensis. Ana Rech, 4 Mar 2005, (Celli
Marchett 2008, 63: ANEXO XI, Fig.C.)
Fig.9 Parodia rechensis. Ana Rech,
16 Nov 2011, AM 821
F. Celli Marchett
Photo: Anceschi & Magli
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Anceschi, G. & Magli, AbziRPQPjz*0/#
( -$zRPPUvRPQPbz*'*")dzz$)!*.#*+b
Braun, P. J. & Esteves Pereira, E. iRPPQj
&/ )z0)z) - z0&&0' )/ )z$)z-.$'$ )b
#0())$zSdzQwRSUb
Celli Marche=, F. iRPPXjzz(@'$z/ 
0..bz)*z0)@$+$*z z3$.z*z0'czcz-.$'b
 )/-*z z$>)$.z$*'B"$.z zzF c
)$1 -.$ z z3$.z*z0'cz$*z-) z*
0'cz3$.z*z0'cz-.$'b
Gerloff, N., Neduchal, J. & Stuchlik, S.
iQYYUjz*/*&&/ )bz .(/-./ ''0)"z'' -
*/*&&/ )bz02$".0-"dz1 / )z -'"b
Gerloff, N. iQYYXjzJ)5 )z $z)z #z$(
0)$$+'z3$.z*z0'bz)/ -)*/*zQYziQjdzSVzw
TPb
Hunt, D. R. et al. iRPPVjz# z 2z/0.
 3$*)bz$'*-) z*-/dzz**&.b
Mace, A. iQYWXjz*/*/0.bzz- 1$ 2z*!z/#
 )0.z$)*-+*-/$)"z-.$'$/0.cz-$*/0.
)z$""$).$bzR)z $/$*)bz# z $/*-$'z*-
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00' )/z*$ /4b
Zappi, D. et al. iRPQQjz')*z z;9*z)$*)'
+-z*). -1;9*z.z/<.bz<-$ z.+<$ .
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ST
The Cactus Explorer ISSN 2048-0482 Number 5 August 2012
Fig.10 Parodia rechensis and Parodia linkii. Ana Rech,
16 Nov 2011, AM 821; AM 822
Photo: Anceschi & Magli
Full-text available
Book
With South America 2011/2013 we present the second volume of the series cactusinhabitat booklet. About two and a half years have passed since the first publication of cactusinhabitat.org (in 2010) and our first booklet, which Gordon Rowley described as: '... stimulating reading and some revolutionary ideas to arouse controversy' (letter, 27 October 2010). Since then cactusinhabitat has been the activity of our lives, and after another year spent in the habitats of South America, we return to devote ourselves exclusively to the elaboration of the data collected. With the 2013 output we present more than 100 new taxa, bringing the total number of species recognized in cactusinhabitat.org to 252 (from the 292 taxa studied in habitat), many of which are accompanied by related comments. The new surveys are documented by more than 4500 photos, in addition to the existing 2000. Although we documented some new genera, the total number we are presenting is still 40, as in the first publication. We have in fact chosen to assimilate some genera in Echinopsis Zuccarini as a consequence of the phylogenetic hypothesis adopted on the basis of the evidence of the latest molecular analyses (Nyffeler & Eggli 2010, 6: 109-149; Schlumpberger & Renner, 2012, 99 (8) 1335-1349). In this regard, we think that the new theories, the new methods and the new techniques are not of use unless the results can be evaluated with an open mind, without which it old ideas that are always lurking are likely to encroach on the space. The subject of the text on taxonomy is time, the master of the lives of every living being. Only the recognition of the importance of an exact chronology of historical events allows us to identify, as the only truth, a phylogenetic system of classification, as an alternative to other methods based on artificial parameters (morphological, typological etc.) Following time's arrow, we analyzed methods and techniques currently in use for the definition of natural (monophyletic) groups in higher taxa, the system based on Hennig simplesiomorphies / synapomorphies, and the choice of specific evolutionary models in the reprocessing of molecular data, e.g. ML and Bayesian analysis, etc. We want to emphasize the importance of the system proposed by Hennig for the definition of the lower taxa (species), the semaphoront figure, and that of accessory science to recognize genetic relationships within a taxonomic system, called 'comparative holomorphy between semaphoronts' (Hennig, 1966, 66-67). In conclusion, our work in habitat led us to prefer the relationships between species rather than separations; relationships also evident in the results of molecular analysis. If there aren’t many taxa or there are, it is a problem of interpretation: If you think of things as being linked together, there are a few; on the other hand, if you think of them as separate, there are many more.