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Author Topic: Crocus - web resources  (Read 26249 times)

Maggi Young

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Re: Crocus - web resources
« Reply #15 on: January 30, 2015, 11:02:31 AM »
IRG 61 of January 2015 is a Crocus Special:  http://www.srgc.org.uk/logs/logdir/2015Jan291422555042IRG61.pdf   

Please note there is a new link for IRG 61  : http://www.srgc.org.uk/logs/logdir/2015Feb011422783332IRG61.pdf
 
 Dr. Jānis Rukšāns, described by Chris Brickell as a  “journalist, author, nationalist
politician, plantsman, plant breeder, plant explorer,and eminent nurseryman”  is well-known in the forum for his many posts on his travels to see plants inthe wild and on his extensive bulb collections. In this issue of IRG  he describes various new Crocus species -
Crocus gunae, Crocus reinhardii  Crocus iranicus and discusses C. adamii
 
Jānis is also a speaker at the SRGC Discussion Weekend in October   http://www.srgc.net/forum/index.php?topic=12742.0


Crocus gunae


Crocus reinhardii corm
« Last Edit: February 01, 2015, 09:43:00 AM by Maggi Young »
Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!

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Maggi Young

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Re: Crocus - web resources
« Reply #16 on: February 01, 2015, 09:43:12 AM »
Please note there is a new link for IRG 61  : http://www.srgc.org.uk/logs/logdir/2015Feb011422783332IRG61.pdf
Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!

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krisderaeymaeker

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Re: Crocus - web resources
« Reply #17 on: February 01, 2015, 09:59:38 AM »
Another exciting IRG Maggi. Thank you SRGC ! 
Kris De Raeymaeker
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Re: Crocus - web resources
« Reply #18 on: March 02, 2015, 10:25:40 AM »
A new paper is expected soon to be published in Caryologia -Firenze  - due  in April 2015 :

Seed morphology and genome size in two Tuscan Crocus (Iridaceae) endemics: C. etruscus and C. ilvensis   

Authors:
Angelino Carta
Marina Moretti
Flavia Domizia Nardi
Sonja Siljak-Yakovlev
Lorenzo Peruzzi

Caryologia -Firenze- 04/2015
 
ABSTRACT:
 Recent taxonomic investigation led to the segregation of Crocus ilvensis Peruzzi & Carta, a narrow endemic to Elba Island (Tuscan Archipelago, Central Italy), from C. etruscus Parl., endemic to continental Tuscany. The aim of this study is to produce further basic systematic data aimed comparing these taxa by means of seed morphological features and genome size. Albeit seed macro-morphology is quite identical, seed surface microstructure, seed mass, seed dimensions and genome size differ between the two studied species.


Maggi Young

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Re: Crocus - web resources
« Reply #19 on: March 22, 2015, 11:07:58 AM »
A new subspecies of Crocus pestalozzae (Iridaceae) from Turkey

    Sirri Yüzbaşioğlu
    Neriman Özhatay
 

07/2014; 174:279-284.

ABSTRACT C. pestalozzae subsp. violaceus is described as a new subspecies from northwest Anatolia. The new taxa differs from subsp. pestalozzae by its flower colour, leaf and flower size, kartotype, habitat and growing elevation. Diagnostic characters, a full description, and detailed illustrations are presented. Also photograps of metephase plate, karyotypes and idiograms of two subsp. of C. pestalozzae are given. The geographical distribution of the subspecies is mapped. IUCN threatened category and observations on the population are noted. 

A new subspecies of Crocus pestalozzae (Iridaceae) from Turkey. Available from: https://www.researchgate.net/publication/268519375_A_new_subspecies_of_Crocus_pestalozzae_%28Iridaceae%29_from_Turkey [accessed Mar 22, 2015].
Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!

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Maggi Young

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Re: Crocus - web resources
« Reply #20 on: November 06, 2015, 08:25:07 PM »
The Pacific Bulb Society has been updating their Wiki page for  Crocus:
http://www.pacificbulbsociety.org/pbswiki/index.php/Crocus#species -  the comparison pictures for corms ,all on one page, is very  handy.  8)
« Last Edit: November 06, 2015, 08:28:17 PM by Maggi Young »
Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!

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Maggi Young

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Re: Crocus - web resources
« Reply #21 on: December 22, 2015, 08:22:59 PM »
News from Janis Ruksans with  links for  important new Crocus papers  :

"For all Croconuts : Just are published excellent article from Dorte Harpke and HKEP about morphology and development of Crocus plants. Nothing so complete was seen before!
And another one - with 6 more new species - still not studied the last but you can download both on......"

http://www.zobodat.at/pdf/STAPFIA_0103_0027-0065.pdf  - The Genus Crocus (Liliiflorae, Iridaceae): Lifecycle,
Morphology, Phenotypic Characteristics, and Taxonomical Relevant Parameters. 
Helmut Kerndorff, Erich Pasche & Dörte Harpke

Abstract: The genus Crocus L. was studied by the authors for more than 30 years in nature as well as in
cultivation. Since 1982 when the last review of the genus was published by Brian Mathew many new taxa
were found and work dealing with special parameters of Crocus, like the Calcium-oxalate crystals in the
corm tunics, were published. Introducing molecular-systematic analyses to the genus brought a completely
new understanding of Crocus that presents itself now far away from being small and easy-structured. This
work was initiated by the idea that a detailed study accompanied by drawings and photographs is necessary
to widen and sharpen the view for the important details of the genus. Therefore we look at the life-cycle
of the plants as well as at important morphological and phenotypical characteristics of Crocus. Especially
important to us is the explained determination of relevant taxonomical parameters which are necessary for
a mistake-free identification of the rapidly increasing numbers of discovered species and for the creation of
determination keys.
Key words: Crocus, life-cycle, morphology, phenotypic characteristics, morphometry, taxonomical relevant
parameter.




http://www.zobodat.at/pdf/STAPFIA_0103_0067-0080.pdf - Crocus lyciotauricus Kerndorff & Pasche
Helmut Kerndorff, Erich Pasche & Dörte Harpke
(Liliiflorae, Iridaceae) and its relatives

Abstract: Results of molecular analyses in the genus Crocus clarified several phylogenetic problems. Section
Nudiscapus presents itself now exceedingly complex and taxonomical as well as systematic corrections are
necessary. This is true e.g. for many taxa previously thought to belong to series Biflori. One group of species
turned out to be rather homogenous in respect of morphological similarities as well as geographical distribution
of their members. For these we establish a new series in the genus which is called Lyciotauri due to the fact that
its species predominantly occur in the Lycian Taurus Mountains. Genetics, geographical distribution as well as
morphological measurements are presented.

Key words: Crocus, phylogeny, new series Lyciotauri, new species Crocus akkayaensis, C. katrancensis, C.
bowlesianus, C. akdagensis, C. salurdagensis, C. xanthosus.


« Last Edit: January 09, 2016, 12:45:28 PM by Maggi Young »
Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!

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Yann

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Re: Crocus - web resources
« Reply #22 on: December 22, 2015, 11:01:02 PM »
stapfia publications are always interesting, thanks for the url.
North of France

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Re: Crocus - web resources
« Reply #23 on: December 23, 2015, 01:13:58 PM »
they are interesting to read but I am totally unconvinced on all these new species.

I wonder if when we purchase plants in the future they will come with a certificate of authenticity with DNA analysis attached. It will be the only way it will be possible to identify them as given the marginal differences will not be possible by seeing them in flower!
Chorley, Lancashire zone 8b

Janis Ruksans

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Re: Crocus - web resources
« Reply #24 on: December 24, 2015, 08:47:55 AM »
they are interesting to read but I am totally unconvinced on all these new species.

I wonder if when we purchase plants in the future they will come with a certificate of authenticity with DNA analysis attached. It will be the only way it will be possible to identify them as given the marginal differences will not be possible by seeing them in flower!

You are partly right. At least for mine new species I try to give good morphological differences how to separate them from similar and this is the reason why still some of my discoveries are not published yet, although they certainly are different new ones.
« Last Edit: December 24, 2015, 06:39:35 PM by Janis Ruksans »
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Maggi Young

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Re: Crocus - web resources
« Reply #25 on: December 24, 2015, 04:18:05 PM »
Crocus musagecitii -  A new Crocus L. (Iridaceae) species from SE Turkey, based on morphological and molecular data
Osman Erol, Doerte Harpke, Hasan Yıldırım
Abstract : Crocus musagecitii is described as a new species. Diagnostic morphological characters, a full description and detailed illustrations are provided on the basis of the type specimen and wild specimens. Morphologically, C. musagecitii is close to Crocus biflorus subsp. pseudonubigena. Crocus musagecitii differs from C. biflorus subsp. pseudonubigena by the lack of stripes or narrow purplish tongue on outside of outer tepals, wider tepals, and homogenously yellow anthers. In order to clarify the phylogenetic position of this species within the Crocus adamii species complex, we sequenced the internal transcribed spacer region (ITS: ITS1 + 5.8SrDNA + ITS2) and 5’ external transcribed spacer (ETS) of the nuclear ribosomal DNA (rDNA). A phylogenetic tree obtained by Bayesian phylogenetic inference is given. Phylogenetic analyses revealed that the new taxon is close to C. munzurensis. Crocus musagecitii differs from its phylogenetically closest relative C. munzurensis by the corm tunics (C. musagecitii: coriaceus; C. munzurensis: membranous), the number of leaves (C. musagecitii: up to 8; C. munzurensis: up to 4) and non-hairy leaf margins.

Picture  taken from  Hasan Yıldırım's posts : https://www.facebook.com/media/set/?set=oa.10153382203680318&type=1

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Janis Ruksans

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Re: Crocus - web resources
« Reply #26 on: December 24, 2015, 06:58:13 PM »
Dear Maggi,
Where it is published (Crocus musagecitii) - can't find anywhere?
Janis
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Maggi Young

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Re: Crocus - web resources
« Reply #27 on: December 24, 2015, 07:12:04 PM »
Here  Janis, www.mapress.com/phytotaxa/content/2015/f/p00239p232f.pdf



 and in ResearchGate - but not open view as yet I don't think.   
I have a copy, I will contact you . 
« Last Edit: December 25, 2015, 08:43:25 PM by Maggi Young »
Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!

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Maggi Young

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Re: Crocus - web resources
« Reply #28 on: December 24, 2015, 09:28:15 PM »
I am much indebted to Hasan Yıldırım for his permission to share  these photos with the forum
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Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!

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Maggi Young

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Re: Crocus - web resources
« Reply #29 on: May 30, 2016, 05:44:44 PM »
Copied from another thread :
I just found these interesting papers:
"Seed afterripening and germination photoinhibition in the genus Crocus (Iridaceae)"

https://www.researchgate.net/profile/Costas_Thanos/publication/281281245_Seed_afterripening_and_germination_photoinhibition_in_the_genus_Crocus_Iridaceae/links/55defbbb08ae45e825d3cbba.pdf

"Seed Germination of Some Crocus Species of Western Anatolia1"

http://dergipark.ulakbim.gov.tr/anadolu/article/download/5000140588/5000128583

Poul
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