Author Topic: Crocus - web resources (Read 31262 times)

Janis Ruksans · « **Reply #30 on:** July 06, 2016, 08:51:07 AM »

Two new crocuses just recently were published. One by Turkish botanists as C. ancyrensis subsp. guneri - from Amasya prov - published in Phytotaxa.

I got my plants of Crocus guneri from Czech collector under name of C. ancyrensis as collected in Amasya province without exact locality and up to last I was quite doubtful about their status, supposing them as natural hybrid. Some forms of C. ancyrensis s.l. occasionally hybridize in wild (such hybrid with C. abantensis got name C. x paulineae). Another hybrid with unknown species was collected S of Tokat, too. My own gathering from N of Amasya province (LST-124 - near Merzifon on Tavsan Dag) has uniformly yellow flowers. So it is not great wonder that I regarded my samples as natural hybrids, although they were fertile. My plants has something finer reticulated tunics than pictured in description of C. guneri, but difference is not very great and it can vary slightly between different populations.

Although my experience in cultivation of Crocus guneri isn’t very long, it turned easy growable in pots. In cultivation corms increase in size up to 20 mm in diameter and well multiplies by splitting. I am keeping it all the year round in the greenhouse.

Janis Ruksans · « **Reply #31 on:** July 06, 2016, 09:00:01 AM »

Another one is Crocus novicii - published in Phytotaxa by D. Harpke and Serbian botanists from S Albania. I never had it, so attached picture is scan from original publication where you can compare it with allies.

This highly ornamental crocus still is unknown in cultivation but it most likely has same requirements as Crocus jablanicensis and C. cvijicii growing wild in same region and in similar conditions, so there could be no problems with its cultivation in our gardens. It is quite possible that it could be found on the same mountain ridge in adjacent Greece, as its type locality is situated quite close and ecological conditions there are very similar. Superficially it is quite similar to C. jablanicensis from which it can be easy separated by bluish toned flower tube and blue basal blotch on segments outside, it is more leafy, too. From light (whitish) forms of typical C. cvijicii and C. veluchensis it is easy separable by glabrous throat which in both other species is pubescent and by white colour of stigma which in others is yellow or orange.

Maggi Young · « **Reply #32 on:** July 06, 2016, 01:04:26 PM »

Crocus jablanicensis

https://www.researchgate.net/publication/235660562_Crocus_jablanicensis_Iridaceae_a_New_Species_from_the_Republic_of_Macedonia_Balkan_Peninsula

Maggi Young · « **Reply #33 on:** September 08, 2016, 02:35:45 PM »

Quote from: Janis Ruksans on July 06, 2016, 09:00:01 AM

Another one is Crocus novicii - published in Phytotaxa by D. Harpke and Serbian botanists from S Albania. I never had it, so attached picture is scan from original publication where you can compare it with allies.

This highly ornamental crocus still is unknown in cultivation but it most likely has same requirements as Crocus jablanicensis and C. cvijicii growing wild in same region and in similar conditions, so there could be no problems with its cultivation in our gardens. It is quite possible that it could be found on the same mountain ridge in adjacent Greece, as its type locality is situated quite close and ecological conditions there are very similar. Superficially it is quite similar to C. jablanicensis from which it can be easy separated by bluish toned flower tube and blue basal blotch on segments outside, it is more leafy, too. From light (whitish) forms of typical C. cvijicii and C. veluchensis it is easy separable by glabrous throat which in both other species is pubescent and by white colour of stigma which in others is yellow or orange.

A new species of Crocus (Iridaceae) from southern Albania (SW Balkan Peninsula)
Article in Phytotaxa 265(1):39 • June 2016
DOI: 10.11646/phytotaxa.265.1.3

MILICA MILJKOVIĆ
Vladimir Randjelovic University of Niš
Dörte Harpke Leibniz Institute of Plant Genetics and Crop Plant Research

Abstract
A new Crocus species (Iridaceae) for southern Albania, Crocus novicii sp. nov. (Iridaceae), is described and illustrated. We here provide diagnostic morphological characteristics, results of molecular analyses, detailed descriptions and illustrations of this new species and compare it with its relatives C. jablanicensis, C. cvijicii and C. veluchensis. Our molecular analysis is based on two chloroplast (matK–trnK, rps16–trnQ) and three nuclear markers (nrETS, nrITS, TOPO6B exon3–exon6) and includes representatives of all related species (C. cvijicii, C. dalmaticus, C. jablanicensis, C. rujanensis, C. sieberi subsp. atticus, and C. veluchensis). Morphologically, C. novicii can be distinguished from its relatives by its white flower with lilac coloring at the base of the perigone and its higher number of leaves (> 3). Although it is morphologically close to C. jablanicensis, molecular analysis has revealed a close affiliation to C. veluchensis. Crocus novicii is diploid with 2n = 20 chromosomes. The new species is named after the Serbian botanist Novica Ranđelović to honor his important work on the genus Crocus on the Balkan Peninsula.

Maggi Young · « **Reply #34 on:** September 08, 2016, 02:46:52 PM »

Neotypification of the name Crocus biflorus Mill. (Iridaceae) and its consequences in the taxonomy of the genus
Article in Phytotaxa 260(2):131-143 · May 2016
DOI: 10.11646/phytotaxa.260.2.3

Dörte Harpke Leibniz Institute of Plant Genetics and Crop Plant Research
Helmut Kerndorff Umweltbundesamt, Germany
Erich Pasche
Lorenzo Peruzzi Università di Pisa
Abstract
Recent phylogenetic investigations on the genus Crocus proved several infra-generic units predominantly within section Nudiscapus to be para- or polyphyletic even at infra-specific level. In particular, the 23 “subspecies” of C. biflorus Mill. turned out to be polyphyletic grouping in very different phylogenetic clades and sub-groups. In addition, they were established under the binomial Crocus biflorus, not yet typified. As first step, we neotypified this name. Then, through a phylogeny based on the ETS region of the nuclear ribosomal (nr) DNA as an additional nuclear marker to the already available nrITS region, we further demonstrated that all the “subspecies” represent independent evolutionary lineages. Therefore, all these taxa are treated here at species level. To achieve this, 10 new combinations are proposed.

1) Morphological features of the corm tunics and seeds (bottom left) of Crocus biflorus from the type population of Monte Javello, Tuscany.

2) Flowering plants of Crocus biflorus from the type population, Monte Javello, Tuscany. Pictures by G. Gestri (15 January 2007)

3) Phylogenetic tree from a Bayesian analysis of the ITS and ETS regions of Crocus sect. Nudiscapus species. Numbers at nodes give posterior probabilities (pp) for the clades. Position of C. biflorus is highlighted in red. Former C. biflorus subspecies are indicated in bold, while species not classified within C. ser. Biflori are in grey. Individuals with intra-individual polymorphic ETS and ITS regions are indicated by ‘E’ followed by a letter and ‘I’ followed by a letter, respectively.

Maggi Young · « **Reply #35 on:** February 17, 2018, 01:29:32 PM »

Crocus Group SRGC Team · « **Reply #36 on:** July 03, 2019, 03:15:14 PM »

There are descriptions and links to all the articles on Crocus in these issues of The International Rock Gardener. Including the descriptions of the new Crocus species.

The following issues of IRG contain formal descriptions of new crocus species:
IRG 52 April 2014 Crocus danfordiae Maw and C. chrysanthus (Herbert) Herbert (Iridaceae) and some of their allies in Turkey and Iran- Crocus brickellii, Crocus henrikii, Crocus kurdistanicus, Crocus muglaensis, Crocus uschakensis are described by Dr Jānis Rukšāns IRG 52: 2-31- http://www.srgc.org.uk/logs/logdir/2014Apr241398364476IRG52April.pdf

IRG 59 November 2014 Crocus pumilus - status of one Greek species – Crocus laevigatus subsp. pumilus raised to C. pumilus - by Dr Jānis Rukšāns IRG59: 4-15 http://www.srgc.org.uk/logs/logdir/2014Nov271417122600IRG59.pdf

IRG 61 January 2015 Crocus gunae, Crocus reinhardii Crocus iranicus are described by Dr Jānis Rukšāns IRG61: 2-26 http://www.srgc.org.uk/logs/logdir/2015Feb011422783332IRG61.pdf

IRG64 April 2015 Some New Crocus Taxa (Iridaceae) from Western Turkey and East Aegean Islands are described by Dr Jānis Rukšāns these are Crocus antalyensioides, Crocus antalyensis subsp.nova , , Crocus lycius, Crocus pamphylicus, Crocus dilekyarensis, Crocus kofudagensis, Crocus rhodensis, Crocus sozenii, Crocus zetterlundii IRG 64: 2-36
http://www.srgc.org.uk/logs/logdir/2015Apr231429824727IRG64.pdf

IRG 73 January 2016 Crocus duncanii described by Dr Jānis Rukšāns - IRG 73: 2-14 http://www.srgc.org.uk/logs/logdir/2016Jan281454019772IRG73.pdf

IRG 76 April 2016 Some new Crocus species described by Dr Jānis Rukšāns – these are Crocus armeniensis, Crocus gembosii , Crocus georgii, Crocus puringiorum, Crocus sakaltutanensis and Crocus stevensii - IRG 76:16-43 http://www.srgc.org.uk/logs/logdir/2016Apr281461879792IRG_76.pdf

IRG 89 May 2017 – Crocus inghamii described by Dr Jānis Rukšāns -IRG 89: 3-18
http://www.srgc.org.uk/logs/logdir/2017May251495746846IRG89May2017.pdf

IRG 90 June 2017 Crocus ruksansii is described by Dr Dimitri Zubov -IRG 90: 7-13
http://www.srgc.org.uk/logs/logdir/2017Jun211498039508IRG_90_June.pdf

IRG 90 June 2017 Crocus harveyi and Crocus seisumsiana are described by Dr Jānis Rukšāns -IRG 90: 14 -28 http://www.srgc.org.uk/logs/logdir/2017Jun211498039508IRG_90_June.pdf

IRG 95 November 2017 WHAT IS CROCUS NUBIGENA Herb.? by Dr Jānis Rukšāns Abstract: Epitype for Crocus nubigena Herb. is designated. Its distribution and the features separating it from similar species are discussed. - IRG 95 : 18-28 http://www.srgc.org.uk/logs/logdir/2017Nov231511460835IRG_95_November _2017.pdf

IRG 99 March 2018 Crocus yalovensis is described by Dr Jānis Rukšāns IRG100: 2-21
http://www.srgc.org.uk/logs/logdir/2018Mar291522354177IRG100.pdf (link is to IRG99 – the 100 shown in link was an error)

IRG 102 June 2018 IRG 102 June 2018 Crocus youngiorum is described by Jānis Rukšāns and Henrik Zetterlund -IRG102: pages 13-23 http://www.srgc.org.uk/logs/logdir/2018Jun291530286276IRG102June2018.pdf

Published in International Rock Gardener (IRG 108) December 2018: http://www.srgc.org.uk/logs/logdir/2018Dec241545672053IRG108_December 2018.pdf

Crocuses of series Kotschyani Mathew (Iridaceae) with a new species Crocus hatayensis Rukšāns from Hatay Province, Turkey. Jānis Rukšāns,
Dr. biol. h.c. Published in International Rock Gardener (IRG 108) December 2018, pages 20 – 54.
IRG109 http://www.srgc.org.uk/logs/logdir/2019Jan241548361044IRG109January2019.pdf

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Author Topic: Crocus - web resources (Read 31262 times)

Janis Ruksans

Re: Crocus - web resources

Janis Ruksans

Re: Crocus - web resources

Maggi Young

Re: Crocus - web resources

Maggi Young

Re: Crocus - web resources

Maggi Young

Re: Crocus - web resources

Maggi Young

Re: Crocus - web resources

Crocus Group SRGC Team

Re: Crocus - web resources