Taxonomy, typification and karyology of Crepis lacera (Asteraceae)

Phytotaxa ◽  
2015 ◽  
Vol 208 (1) ◽  
pp. 45 ◽  
Author(s):  
Francesco Roma Marzio ◽  
Giovanni Astuti ◽  
Lorenzo Peruzzi
Keyword(s):  
Leaf Morphology ◽  
Diploid Species ◽  
Distribution Map ◽  
Basal Leaf ◽  
Disjunct Population ◽  
Main Distinguishing Feature

Crepis lacera is a diploid species (2n = 8), mostly occurring in Italy, with a disjunct population in Albania. The names C. lacera, C. latialis and C. lacera f. titani are here lectotypified, and their taxonomic value is discussed. For the latter name, based on morphological, biogeographical and karyological results, we propose here the subspecific rank (C. lacera subsp. titani stat. nov.). In addition, basal leaf morphology variation, the main distinguishing feature between the two subspecies, is discussed in the light of paedomorphosis, and a distribution map for both subspecies is presented.

Lepidaploa restingae (Asteraceae: Vernonieae), a new species from Northeastern Brazil

Phytotaxa ◽  
2021 ◽  
Vol 520 (2) ◽  
pp. 195-202
Author(s):  
GLEISON SOARES ◽  
BENOÎT LOEUILLE
Keyword(s):  
New Species ◽  
Related Species ◽  
Leaf Morphology ◽  
Conservation Status ◽  
Corolla Lobe ◽  
Northeastern Brazil ◽  
Distribution Map ◽  
A New Species

Lepidaploa restingae, a new species from the restinga vegetation in Northeastern Brazil, is described and illustrated. This new species differs from morphologically related species by the branch indument, leaf morphology, number of phyllary series and corolla lobe indument. Taxonomic comments, a distribution map and a preliminary conservation status for the new species are provided.

Stemodia diplohyptoides (Plantaginaceae, Gratiolae): a new diploid species from South America

Phytotaxa ◽  
2014 ◽  
Vol 186 (5) ◽  
pp. 271 ◽  
Author(s):  
Maria Mercedes Sosa ◽  
Massimiliano Dematteis
Keyword(s):  
New Species ◽  
Diploid Species ◽  
Corolla Tube ◽  
Distribution Map ◽  
Corolla Length ◽  
The North ◽  
Misiones Province ◽  
Northeastern Argentina ◽  
A New Species ◽  
Scanning Electron

Stemodia diplohyptoides (Plantaginaceae), a new species from Gratiolae tribe is described and illustrated. This taxon is found in northeastern Argentina, at the edge of the Parana River that surrounds the north and center of Misiones province (Argentina). It is a diploid that has been traditionally treated under Stemodia hyptoides, which is here re-circumscribed to include only autopolyploid plants (tetraploid and hexaploid). The diploid specimens may be distinguished from the polyploid S. hyptoides by several morphological features such as shape, pubescence and margin of the leaves, corolla length and corolla tube pubescence. In addition, scanning electron microphotographs of seeds, chromosomes numbers, a distribution map and a key to distinguish the related species are also provided. On the basis of morphological, cytological and geographical data, some evolutionary considerations are inferred.

Hyptidendron albidum (Lamiaceae, Hyptidinae), a remarkable new species from northern Minas Gerais state, Brazil

Phytotaxa ◽  
2017 ◽  
Vol 308 (1) ◽  
pp. 97 ◽  
Author(s):  
RAYMOND MERVYN HARLEY ◽  
GUILHERME MEDEIROS ANTAR
Keyword(s):  
New Species ◽  
Endemic Species ◽  
Leaf Morphology ◽  
Conservation Status ◽  
Minas Gerais ◽  
Distribution Map ◽  
Minas Gerais State ◽  
Status Assessment ◽  
Inflorescence Length

Hyptidendron albidum a new and endemic species from Northern Minas Gerais state, Brazil, is here described. This new species is unique due to the morphological combination of its dense indumentum of white dendroid trichomes, covering much of the plant and the inflorescence composed of a unilateral cymose structure. The new species is morphologically similar to H. unilaterale which displays a similar unilateral cymose structure but differs in its indumentum, inflorescence length and leaf morphology. We provide a description, an illustration, a conservation status assessment, a distribution map, and comments on the recognition of this new species.

Allium kuhrangense (Amaryllidaceae) a new species of Allium sect. Acanthoprason from Iran

Phytotaxa ◽  
2014 ◽  
Vol 170 (3) ◽  
pp. 213 ◽  
Author(s):  
AZADEH AKHAVAN ◽  
HOJJATOLLAH SAEIDI ◽  
REINHARD M. FRITSCH
Keyword(s):  
New Species ◽  
Diploid Species ◽  
Iucn Red List ◽  
Red List ◽  
Mountainous Region ◽  
Distribution Map ◽  
Critically Endangered Species ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
A New Species

Allium kuhrangense, an endemic to Chaharmahal Bakhtiari province (Iran) is described here as a new species. This species grows on gravelly and rocky slopes of a mountainous region. It is morphologically most similar to A. austroiranicum and can be recognized as a member of the A. austroiranicum alliance. Allium kuhrangense is a diploid species with chromosome number of 2n = 2x = 16. Diagnostic characters, description, taxonomic comments, photographs and a distribution map of the new species as well as an identification key for the related taxa are provided. According to IUCN Red List Categories and Criteria, A. kuhrangense is assessed here as a “Critically Endangered” species.

scholarly journals Crossability of 14 Rubus Species with Red Raspberry and Blackberry Cultivars

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 620a-620
Author(s):  
Chad Finn ◽  
Kirsten Wennstrom ◽  
Kim Hummer
Keyword(s):  
Seed Germination ◽  
Leaf Morphology ◽  
Diploid Species ◽  
Tetraploid Species ◽  
Red Raspberry ◽  
Embryo Formation ◽  
Standard Procedures ◽  
Rubus Species

Populations of 40 Rubus sp., representing the Malachobatus, Idaeobatus, Eubatus, and Anoplobatus, were planted in the field in 1994. To get a preliminary idea of how successful crosses between these species and standard cultivars would be, 58 crosses were attempted between standard cultivars and randomly selected genotypes of the 14 species that produced a significant number of flowers in 1995. Diploid species were crossed with `Tulameen' and `Meeker' raspberry and the tetraploid species with `Cherokee' and `Chester' blackberry. Twenty-two crosses produced seed lots ranging from 8 to 630 seeds. Crosses were successful with R. caesius, R. caucasicus, R. coreanus, R. georgicus, R. parvifolius, R. rosifolius, and R. sumatranus. Crosses were not successful with R. eustephanos, R. insularis, R. innominatus, R. lambertianus, R. sachalinensis, R. setchuenensis, R. swinhoei, and R. tsangorum. In vitro seed germination was attempted with all crosses. Larger seed lots were also germinated using standard procedures for Rubus. There is a great deal of variability in leaf morphology of the young seedlings within a cross that suggests that some or all of the seedlings are true hybrids. Seedlings that are not true hybrids could result from contaminant pollen or, as in R. armeniacus, pseudogamous embryo formation. Crossing results from 1995 and 1996, including crosses attempted and seed numbers per cross, will be presented along with, for the 1995 crosses, the number of germinated seedlings and our assessment of whether they appear to be true hybrids.

scholarly journals Production of Interspecific Hybrids between Hexaploid Fragaria moschata and the diploid species F. nubicola and F. viridis.

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 610b-610
Author(s):  
Robert H. Bors ◽  
J. Alan Sullivan
Keyword(s):  
Seed Germination ◽  
Ploidy Level ◽  
Interspecific Hybrids ◽  
Leaf Morphology ◽  
Seed Set ◽  
Embryo Rescue ◽  
Diploid Species ◽  
Interspecific Crosses ◽  
Good Seed ◽  
Poor Seed

Interspecific crosses with Fragaria moschata (6x) have been hampered by ploidy level differences, poor seed set, and extremely poor seed germination. Modification of pollination practices, embryo rescue, and use of several genotypes has allowed over 80 synthetic tetraploids to be created from 14 cross combinations. Germplasm for the experiment consisted of eight selections of F. moschata (6x), two of F. nubicola (2x), and two of F. viridis (2x). Both 2x × 6x and 6x × 2x crosses were performed. Initially, negligible seed set occurred on F. nubicola and F. viridis when multiple flowers per truss were pollinated. When only one cross was performed per truss, with other flowers removed, seed set was greatly enhanced. F. moschata was much more tolerant of multiple crosses per truss. The crossing combination of F. moschata × F. nubicola gave the worst seed production. Other species combinations were capable of producing good seed set with noticeable differences between individual selections. When achenes were halved, only 1% appeared normal, 2% were underdeveloped or shrunken, the remainder were empty. Many of the malformed and most of the normal embryos germinated using the cut achene method. Achenes were surface-sterilized, cut in half, and placed on MS media with activated charcoal (3g·L–1), sucrose (30g·L–1), and no hormones. Germination occurred only from achenes from fully ripened fruit. Viable hybrids were obtained from 2x × 6x as well as 6x × 2x crosses. Fragaria viridis–F. moschata hybrids closely resembled F. moschata while F. nubicola–F. moschata hybrids were more intermediate in leaf morphology.

scholarly journals Commiphora kaokoensis (Burseraceae), a new species from Namibia, with notes on C. dinteri and C. namaensis

Bothalia ◽  
2005 ◽  
Vol 35 (1) ◽  
pp. 47-53 ◽  
Author(s):  
W. Swanepoel
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Arid Region ◽  
Leaf Morphology ◽  
Morphological Features ◽  
Distribution Map ◽  
Diagnostic Characters ◽  
New Information ◽  
A New Species

Commipora kaokoensis W.Swanepoel. here described as a new species, is known only from the Kaokoveld Centre of Endemism, an arid region in northwestern Namibia. Illustrations of the plant and a distribution map are provided. Diagnostic characters include the petiolate or subsessile. all-simple and relatively large leaves with the lamina obovate or elliptic. New information is provided on the leaf morphology and geographical distribution of C. namaensis Schinz and C.  dinteri Engl., species with which the new species shares some similarities. When without leaves or fruit, the three species can easily be con­fused. A comprehensive table with diagnostic morphological features to distinguish between the three species is presented.

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.

A New Species of Justicia (Acanthaceae: Acanthoideae: Justicieae) from Northeastern Brazil

2020 ◽  
Vol 45 (2) ◽  
pp. 328-333
Author(s):  
Camila Alcantara ◽  
Gleison Soares ◽  
Francisco de Assis Ribeiro dos Santos ◽  
Marccus Alves
Keyword(s):  
New Species ◽  
Rio Grande ◽  
Morphological Characters ◽  
Northeastern Brazil ◽  
Distribution Map ◽  
Key To Species ◽  
A New Species

Abstract—Justicia rubrobracteata, a new species from northeastern Brazil, is described and illustrated. The new species is morphologically similar to J. aequilabris due to its shrubby habit, and terminal and axillary spicate inflorescences with red flowers. However, J. rubrobracteata is differentiated mainly by the shape and color of its bracts and bracteoles as well as an orangish macula in the corolla, and a torulose capsule. In addition, J. rubrobracteata is only known from northeastern Brazil, from the states of Paraíba and Rio Grande do Norte, while J. aequilabris is widely distributed in Bolivia, Brazil, and Paraguay. A table with the main morphological characters of both species is included, as well as photographs, a key to species of Justicia for the states of Paraíba and Rio Grande do Norte in northeastern Brazil, a distribution map of both species, and conservation data for the new species.

Two New Species of Aira (Poaceae) from the Iberian Peninsula and the Balearic Islands

2020 ◽  
Vol 45 (1) ◽  
pp. 75-84
Author(s):  
Llorenç Sáez ◽  
Javier López-Alvarado ◽  
Pere Fraga ◽  
Regina Berjano ◽  
M. Ángeles Ortiz ◽  
...  
Keyword(s):  
Risk Assessment ◽  
New Species ◽  
Iberian Peninsula ◽  
Diploid Species ◽  
Balearic Islands ◽  
Similar Species ◽  
Chromosome Counts ◽  
Two New Species

Abstract—Two new diploid species, Aira minoricensis and Aira hercynica, are described and illustrated, along with chromosome counts, risk assessment, distribution and habitat, phenology, and comparisons with morphologically similar species. A comparative table and a key for the species of Aira for the Iberian Peninsula and the Balearic Islands are provided to assist in the identification of these overlooked species, and their relationships to other taxa are discussed.

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