Taxonomic diversity and karyology of Anthemis rigida (Anthemideae, Asteraceae) in the Aegean, Greece

Phytotaxa ◽  
2021 ◽  
Vol 484 (1) ◽  
pp. 129-143
Author(s):  
KATERINA GOULA ◽  
THEOPHANIS CONSTANTINIDIS
Keyword(s):  
Chromosome Number ◽  
Geographical Distribution ◽  
Morphological Variation ◽  
Taxonomic Diversity ◽  
Distribution Map ◽  
Aegean Region ◽  
New Subspecies ◽  
Karyotype Formula ◽  
Morphometric Evaluation

This study investigates and taxonomically interprets the morphological variation of Anthemis rigida in the Aegean region (Greece). The eligulate plants are widespread and morphologically homogeneous whereas the ligulate forms are local and more variable. Based on a morphometric evaluation of 20 characters, four different ligulate subspecies are recognized; A. rigida subsp. antri-neptuni is described here as new. All taxa share the same chromosome number of 2n = 18 and are karyologically similar. The new subspecies slightly deviates in the karyotype formula, even though asymmetry indices do not discriminate among taxa in the group. Notes on the taxonomy, geographical distribution and habitat of all ligulate subspecies are provided, together with photographs and a distribution map.

CYTOGEOGRAPHY AND EVOLUTION OF THE DESGHAMPSIA CAESPITOSA COMPLEX

1963 ◽  
Vol 41 (5) ◽  
pp. 719-742 ◽  
Author(s):  
Shoichi Kawano
Keyword(s):  
Chromosome Number ◽  
Geographical Distribution ◽  
Morphological Variation ◽  
Phylogenetic Relationships ◽  
Basic Number ◽  
Basic Chromosome Number ◽  
Basic Form ◽  
Basic Chromosome ◽  
High Chromosome Number ◽  
Deschampsia Caespitosa

The chromosome number, karyotype, and morphological variation of plants of the Deschampsia caespitosa complex are reported in this paper. It is shown that the chromosome number of 2n = 26 is most common in typical D. caespitosa (L.) Beauv. But, remembering the basic chromosome number in the Agrostideae, the original basic number of the genus Deschampsia is considered to be x = 7. Thus, a reduction of the chromosome number from 28 to 26 is speculated in this particular group of Deschampsia. The plant from Mt. Albert, Canada, referable to D. caespitosa ssp. littoralis (Reut.) Rchb., has a high chromosome number of 2n = 49. Considering the morphological affinity between D. caespitosa ssp. littoralis and D. alpina Roem. & Schult., as well as their geographical distribution, parallel development of the plants with such high irregular chromosome number is assumed.The karyotype of D. caespitosa s. str. was also investigated. This species has a highly specialized asymmetrical karyotype, viz., K(2n) = 26 = 4 V + 10 J + 12 I.On the basis of cytology, morphology, ecology, and geographical distribution, the phylogenetic relationships within this complex were considered. The littoralis type, having well-developed panicles, large spikelets, three (rarely four) florets, and a preference for wet terrestrial sites, is speculated to be the most basic form in the D. caespitosa complex, even though the type with smaller spikelets, i.e., caespitosa s. str. is at the present time much more abundant. Various other population groups such as D. caespitosa v. parviflora (Thuill.) Coss. & Germ., D. brevifolia R. Br., D. alpina Roem. & Schult., and the species of the bottnica group (including D. beringensis Hultén, D. bottnica (Wahlenb.) Trin., D. congestiformis Booth, D. holciformis F. & C. Presl, D. mackenzieana Raup, D. macrothyrsa Tatewaki et Ohwi, D. obensis Roshev., and D. wibeliana Schur.) are presumed to be more specialized.

scholarly journals New record for Colombia, updated distribution map, and comments on the defensive behavior of Thamnodyastes dixoni Bailey & Thomas, 2007 (Serpentes, Dipsadidae, Xenodontinae)

Check List ◽  
2020 ◽  
Vol 16 (1) ◽  
pp. 169-175
Author(s):  
Julián A. Rojas-Morales ◽  
Héctor E. Ramírez-Chaves ◽  
Thaís B. Guedes
Keyword(s):  
Geographical Distribution ◽  
Morphological Variation ◽  
Defensive Behavior ◽  
New Record ◽  
Original Description ◽  
Distribution Map ◽  
Distributional Range ◽  
Straight Line ◽  
Ecological Aspects

The original description of Thamnodynastes dixoni Bailey & Thomas, 2007 was based on few specimens, and the morphological variation, distributional range, and ecological aspects of this species are virtually unknown. The species is known to occur in the Llanos of Colombia and Venezuela. In Colombia, it was recorded only in four localities. We report a fifth occurrence of T. dixoni in Colombia and the first in the Department of Meta. The new record extends this species’ distribution nearly 150 km (in a straight line) from the nearest previously known occurrence at Paz de Ariporo, Department of Casanare. Additionally, we also provide comments about the species’ defensive behavior, not reported elsewhere, and a thorough revision on the species’ geographical distribution.

scholarly journals Loncomelos koprulense (Asparagaceae), a new species from southern Turkey

2020 ◽  
Author(s):  
Sandro Bogdanović ◽  
Salvatore Brullo ◽  
Cristina Salmeri
Keyword(s):  
New Species ◽  
Chromosome Number ◽  
Geographical Distribution ◽  
Endemic Species ◽  
Identification Key ◽  
Distribution Map ◽  
Southern Turkey ◽  
Rare Endemic ◽  
A New Species

A new species, Loncomelos koprulense (Asparagaceae), is described and illustrated from southern Turkey. It is a very rare endemic species growing on small semi-rocky escarpments within the Köprülü Kanyon in the province of Antalya. Morphologically for its hairy leaves, L. koprulense shows some relationships with L. malatyanum and L. tardum, species localized in Anatolia too. The chromosome number of the new species is 2n = 2x = 22. The identification key to L. koprulense and its allied species is provided, as well as their geographical distribution map.

scholarly journals Loncomelos koprulense (Asparagaceae), a new species from southern Turkey

PhytoKeys ◽  
2021 ◽  
Vol 175 ◽  
pp. 33-44
Author(s):  
Sandro Bogdanović ◽  
Salvatore Brullo ◽  
Cristina Salmeri
Keyword(s):  
New Species ◽  
Chromosome Number ◽  
Geographical Distribution ◽  
Endemic Species ◽  
Distribution Map ◽  
Southern Turkey ◽  
Rare Endemic ◽  
A New Species

A new species, Loncomelos koprulense (Asparagaceae), is described and illustrated from southern Turkey. It is a very rare endemic species growing on small semi-rocky escarpments within the Köprülü Kanyon in the province of Antalya. Morphologically for its hairy leaves, L. koprulense shows some relationships with L. malatyanum and L. tardum, species localized in Anatolia too. The chromosome number of the new species is 2n = 2x = 22. Geographical distribution map for L. koprulense, L. malatyanum and L. tardum is provided.

scholarly journals First record of Lepanthes appendiculata Ames (Orchidaceae: Pleurothallidinae) from Nicaragua, with comments on the morphological variation, geographical distribution, and conservation status

Check List ◽  
2016 ◽  
Vol 12 (4) ◽  
pp. 1941
Author(s):  
Norman Cash-Arcia ◽  
William Cetzal-Ix ◽  
Edgar Mó ◽  
Hermes Vega ◽  
Saikat Kumar Basu
Keyword(s):  
Geographical Distribution ◽  
Morphological Variation ◽  
New Record ◽  
Conservation Status ◽  
First Record ◽  
Distribution Map ◽  
Iucn Criteria

Lepanthes appendiculata Ames, a new record for the orchid flora of Nicaragua is presented, with comments on its geographical distribution, floral variations, and analysis of conservation status following IUCN criteria. Additionally, we include iconography of its floral variations, habitats, and a detailed distribution map. Based on the herbarium records and iconography, we also accept and corroborate 10 species of Lepanthes Sw. in Nicaragua.

Heterophylly and post-fire flowering of Lippia horridula (Verbenaceae): a “phoenix” of Brazilian Cerrado

Phytotaxa ◽  
2020 ◽  
Vol 441 (1) ◽  
pp. 95-102
Author(s):  
PEDRO HENRIQUE CARDOSO ◽  
FERNANDA SANTOS-SILVA ◽  
LUIZ MENINI NETO ◽  
RAYSA VALÉRIA CARVALHO SARAIVA ◽  
FÁTIMA REGINA GONÇALVES SALIMENA
Keyword(s):  
Geographical Distribution ◽  
Morphological Variation ◽  
Endemic Species ◽  
New Record ◽  
Fire Regime ◽  
Conservation Status ◽  
The State ◽  
Similar Species ◽  
Brazilian Cerrado ◽  
Distribution Map

Lippia horridula is an endemic species from the Brazilian Cerrado with exclusively post-fire flowering records. It is often confused in herbaria collections with Lantana glaziovii and Lippia grandiflora, due to the subshrubby habit, the flowering branches raising from a well-developed xylopodium, and the pink colored corollas. Lippia horridula presents different morphotypes during its vegetative and flowering stages related to the fire regime in the Cerrado. The absence of observation and description of such variations has led to taxonomical confusion regarding its identity. Thus, in order to clarify this, we here present the morphological variation of this species during the vegetative and flowering stages, including modifications in the habit and remarkable heterophylly related to fire regime. An epitype is here designated to aid in the proper delimitation of this species. Moreover, a new record in the state of Maranhão (the northernmost known record for this species) is here presented, plus information about its conservation status, a geographical distribution map, in addition to a comparison with morphologically most similar species.

Distribution and chromosome number of Sonchus palustris in Slovakia

2020 ◽  
Vol 62 (1-2) ◽  
pp. 7-21
Author(s):  
M. Dudáš ◽  
P. Eliáš jun. ◽  
D. R. Letz ◽  
Z. Bártová ◽  
V. Kolarčik
Keyword(s):  
Chromosome Number ◽  
Red List ◽  
Herbarium Specimens ◽  
Distribution Map ◽  
Literary Sources ◽  
Different Types ◽  
New Localities ◽  
Recent Version

The distribution of Sonchus palustris in Slovakia was studied using herbarium specimens and literary sources. The herbarium studies, supplemented with targeted field search in the years 2015–2018, revealed 61 new localities and confirmed many other older locations. The species has been recorded in 19 phytogeographical districts and sub-districts of Slovakia. Most of the records are concentrated in the Podunajská nížina lowland in SW Slovakia and in the Ipel'sko-rimavská brázda region in southern Slovakia. Our results showed that the species is relatively common in different types of wetlands and its re-evaluation in the recent version of the Slovak red list is not needed. Chromosome number data for two new populations in eastern Slovakia (both 2n = 18) were counted. The distribution map is given.

Taxonomic revision of Hannafordia (Lasiopetaleae: Sterculiaceae (Malvaceae s.l.))

2001 ◽  
Vol 14 (1) ◽  
pp. 101
Author(s):  
C. F. Wilkins ◽  
J. A. Chappill
Keyword(s):  
Chromosome Number ◽  
Taxonomic Revision ◽  
Key Distribution ◽  
Seedling Morphology ◽  
New Subspecies ◽  
Distribution Maps ◽  
Taxonomic Descriptions

Taxonomic revision of the endemic Australian genus Hannafordia F.Muell. identified five taxa, including three recognised species, a new subspecies H. quadrivalvis F.Muell. subsp. recurva C.F.Wilkins and a new subspecific combination H. bissillii F.Muell. subsp. latifolia (E.Pritzel) C.F.Wilkins. Taxonomic descriptions, a key, distribution maps, illustrations, anatomical findings and seed and seedling morphology are presented. A chromosome number of n = 10 is the first published record for the genus.

Bothynoderes punctiventris. [Distribution map].

1976 ◽  
Author(s):  
Keyword(s):  
Geographical Distribution ◽  
Host Plants ◽  
Balearic Islands ◽  
Distribution Map ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Bothynoderes punctiventris(Germ.) (Cleonus punctiventris[Bothynoderes punctiventris] Germ.) (Col., Curculionidae). Host Plants: Beta spp. Information is given on the geographical distribution in EUROPE (excl. USSR), Austria, Balearic Islands, Bulgaria, Czechoslovakia, France, Germany, Greece, Hungary, Italy, Poland, Romania, Spain, Switzerland, Yugoslavia, ASIA (excl. USSR), China, Iran, Turkey, USSR.

Ramularia armoraciae. [Distribution map].

1984 ◽  
Author(s):  
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
Distribution Map ◽  
Armoracia Rusticana ◽  
Jammu And Kashmir ◽  
New Distribution

Abstract A new distribution map is provided for Ramularia armoraciae Fuckel. Hosts: Horse-radish (Armoracia rusticana). Information is given on the geographical distribution in AFRICA, Kenya, ASIA, India (Jammu and Kashmir), USSR (Kirghizia; Siberia), EUROPE, Austria, Belgium, Britain, Bulgaria, Czechoslovakia, Denmark, Finland (Saccardo), Germany, Italy (Ferraris), Netherlands, Norway, Poland, Romania, Sweden, USSR (Latvia; Lithuania; Estonia), NORTH AMERICA, Canada, USA.

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