scholarly journals Onopordum myriacanthum subsp. arachnoideum Comb. & Stat. Nov. (Asteraceae: Cardueae)

2014 ◽  
Vol 21 (2) ◽  
pp. 139-145 ◽  
Author(s):  
S. Mesut Pinar ◽  
Lütfi Behçet

Turkish endemic taxon Onopordum bracteatum Boiss. & Heldr. var. arachnoideum Erik & Sümbül is transferred to O. myriacanthum Boiss. as O. myriacanthum subsp. arachnoideum (Erik & Sümbül) P?nar & Behçet comb. & stat. nov. It is characterized by the phyllaries with densely and persistently arachnoid hairs both inside and outside, and upper stem leaves are 2–8 cm far from capitulum. In addition, the pollen characteristics and achene features are presented. The conservation status of O. myriacanthum subsp. arachnoideum has been assessed according to IUCN criteria. A distribution map of O. myriacanthum subsp. arachnoideum and its related taxa is also presented.DOI: http://dx.doi.org/10.3329/bjpt.v21i2.21352Bangladesh J. Plant Taxon. 21(2): 139-145, 2014 (December)

1970 ◽  
Vol 36 (2) ◽  
pp. 139-144 ◽  
Author(s):  
Fergan Karaer ◽  
Ferhat Celep

Scorzonera amasiana Hausskn. and Bornm. was described from type specimens collected by J.F.N. Bornmueller in 1889 but it was not collected again until 1993, when it was found near Amasya, Turkey. Populations of S. amasiana were quite small at that limited locations and were vulnerable to human impacts. Therefore, suitable conservation strategies should be developed immediately in order to protect the species from probable extinction. Here, an additional three small populations are reported. Brief history, morphology, habitat and ecology of this endemic species have been discussed. Its current conservation status was reevaluated with respect to the latest IUCN criteria. A key to distinguish it from the other closely related Turkish species is also provided and its distribution map is appended.   Key words: Endangered, Rediscovery, Scorzonera, Turkey DOI = 10.3329/bjb.v36i2.1502 Bangladesh J. Bot. 36(2): 139-144, 2007 (December)


Phytotaxa ◽  
2021 ◽  
Vol 529 (1) ◽  
pp. 57-70
Author(s):  
J. ANTONIO VÁZQUEZ-GARCÍA ◽  
ERICK TRIBOUILLIER-NAVAS ◽  
FREDY ARCHILA ◽  
MARIO VÉLIZ ◽  
A. SALOME ORTEGA PEÑA ◽  
...  

Three new Magnolia species and a new record from Guatemala are described and illustrated. Two of the new species, M. javieri and M. oscarrodrigoi, are from Alta Verapaz Department and one, M. veliziana, is from Quiché Department. Additionally, M. faustinomirandae is newly reported for the flora of Guatemala. With this contribution, the number of native Guatemalan species increases from 11 to 15 species. An updated distribution map and a key to species are provided. Guatemala, particularly the north-wet-arc in the Maya Highlands, is now an important centre of diversification and endemism for Magnolia. The conservation status of the newly proposed species was unofficially assessed using IUCN criteria.


Phytotaxa ◽  
2018 ◽  
Vol 371 (1) ◽  
pp. 1
Author(s):  
FAN ZHANG ◽  
SI FENG ◽  
JIANJUN ZHOU ◽  
RONG ZHANG ◽  
LINHAN LIU ◽  
...  

Apios chendezhaoana, a new combination derived from Sinolegumenea chendezhaoana, is recognized by both morphological and molecular evidence. It is a new member within Apios, and it is also an endemic and endangered species from East and South China. Phylogenetic analyses indicate that it could be sister to A. fortunei, but morphologically it differs from all its allies by its broad triangular leaflets with caudate apices, white corolla, pink markings on the lower part of the keel, and dilated style with tufted hairs beneath the stigma. We provide a detailed description, photographs, illustrations, and distribution map. We also estimate its conservation status according to IUCN criteria. A key to Apios is also provided, together with a brief revision.


Phytotaxa ◽  
2016 ◽  
Vol 278 (3) ◽  
pp. 241 ◽  
Author(s):  
LUÍS ADRIANO FUNEZ ◽  
GUSTAVO HASSEMER

This contribution presents and describes Siphocampylus baccae and S. sevegnaniae, two narrowly endemic new species from waterfalls and rocky cliffs in Santa Catarina state, southern Brazil. We assess the conservation status of both species as critically endangered (CR) according to the IUCN criteria. We present descriptions, photographs, a distribution map and taxonomic comments on the new species along with an identification key to the species of Siphocampylus that occur in Santa Catarina.


Phytotaxa ◽  
2016 ◽  
Vol 270 (2) ◽  
pp. 146 ◽  
Author(s):  
GERMÁN CARNEVALI ◽  
JORGE CARLOS TREJO-TORRES ◽  
VERÓNICA JUÁREZ-JAIMES ◽  
RODRIGO DUNO ◽  
JOSÉ LUIS TAPIA-MUÑOZ ◽  
...  

Marsdenia (Apocynaceae: Asclepiadoideae, Marsdeniae) is represented by five species in the Mexican Yucatan Peninsula (vs. seven in the whole of the province), one of which is herein proposed as new to science.  The new species, Mardenia calichicola Carnevali & Juárez-Jaimes, is only known from a narrow strip of sub-xerophytic forests over calcareous, rocky soils along the northwestern edge in the Yucatán state of Mexico. Marsdenia calichicola is morphologically similar and likely related to M. gallardoae and M. trivirgulata. Among other characters, it differs from Marsdenia gallardoae by the presence of a corona composed of cushion-like calli (corolla lacking calli in M. gallardoae) whereas M. trivirgulata has a glabrous or glabrescent corolla (vs. pubescent in M. calichicola); additional characters are herein discussed. We provide pertinent iconography to aid in the identification of the new species plus a key to diagnose the three species in the M. trivirgulata complex. The conservation status of the new taxon is assessed against the IUCN criteria as CR. A distribution map and a key to the species of Marsdenia from the Yucatan Peninsula Biotic Province are presented.


Phytotaxa ◽  
2020 ◽  
Vol 428 (3) ◽  
pp. 255-262 ◽  
Author(s):  
ÁLVARO J. PÉREZ ◽  
CLAES PERSSON ◽  
NICOLÁS ZAPATA ◽  
BROCK MASHBURN ◽  
J. ANTONIO VÁZQUEZ-GARCÍA

Magnolia lozanoi is rediscovered 26 years after being collected for the first time. Herbarium specimens were collected by Al Gentry in 1993 and formally described by Antonio Vázquez and Ernesto Castro in 2012. This species is known only from El Quimi Biological Reserve in the province of Morona-Santiago, southeastern Ecuador. An emended description, distribution map and the first photographs of this species are provided. Additionally, its relationships with other species are discussed. Its conservation status is proposed as critically endangered (CR) according to IUCN criteria.


Phytotaxa ◽  
2020 ◽  
Vol 470 (1) ◽  
pp. 77-89
Author(s):  
LUÍS ADRIANO FUNEZ ◽  
DAVID MOURA FARIAS ◽  
GUSTAVO HASSEMER ◽  
ANDRÉ LUÍS DE GASPER

In this work we describe Ludwigia humboldtiana, an extremely narrowly endemic new species from a waterfall system in Corupá municipality, Santa Catarina, southern Brazil. This is already the second plant species endemic to the area. The new species is morphologically most similar to L. caparosa, L. elegans, L. multinervia and L. peruviana but differs from those by a series of taxonomically important characters. We present field photographs, a distribution map and a detailed morphological account of the new species, discuss its morphology and taxonomy in relation to the morphologically most similar other species of Ludwigia, and assess its conservation status according to IUCN criteria.


Check List ◽  
2016 ◽  
Vol 12 (4) ◽  
pp. 1941
Author(s):  
Norman Cash-Arcia ◽  
William Cetzal-Ix ◽  
Edgar Mó ◽  
Hermes Vega ◽  
Saikat Kumar Basu

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.


Phytotaxa ◽  
2019 ◽  
Vol 427 (4) ◽  
pp. 221-238
Author(s):  
J. ANTONIO VÁZQUEZ-GARCÍA ◽  
ERICK TRIBOUILLIER-NAVAS ◽  
FREDY ARCHILA ◽  
MARIO ESTEBAN VÉLIZ-PÉREZ

Magnoliaceae of Guatemala are summarized, and two new Guatemalan species from Alta Verapaz are described and illustrated. Two Magnolia occurrence records are added to the flora of this country. Magnolia archilana is similar to M. hondurensis, but it differs from the latter in having glabrous terminal twigs, petioles, spathaceous bracts, peduncles and carpels, broadly obovate leaves, longer peduncles and larger sepals, outer petals and polyfollicles. Magnolia tribouillierana resembles M. montebelloensis but differs from the latter in lacking branches below five metres; in having glabrous twig internodes, spathaceous bracts and carpels, more numerous leaf veins per side, longer longest peduncular internode, abaxially yellowish sepals, fewer spathaceous bracts and more numerous carpels. A key to species and a distribution map of native Guatemalan magnolias is also provided. Data on diversity, endemism, ethnobotanical knowledge and conservation are also provided. Using the IUCN criteria, conservation status of M. archilana and M. tribouillierana are here assessed as endangered (En) and critically endangered (CR), respectively. Conservation actions are urgently needed for the six Guatemalan magnolias faced with extinction.


Phytotaxa ◽  
2021 ◽  
Vol 498 (2) ◽  
pp. 113-122
Author(s):  
J. ANTONIO VÁZQUEZ-GARCÍA ◽  
FRANCISCO J. SANTANA-MICHEL ◽  
RAMÓN CUEVAS-GUZMÁN ◽  
A. SALOMÉ ORTEGA-PEÑA

Sideroxylon cochranei (Sapotaceae) from Sierra de Manantlán and Cuale, in Jalisco, México is here described and illustrated. It is morphologically close to S. salicifolium, but it differs from the latter in being montane cloud forest trees versus sea-shore to lower montane tropical trees, also in having clustered leaves with longer petioles and sepals and larger fruits. A key to the species of Sideroxylon in western Mexico and a distribution map are provided. According to IUCN criteria, its conservation status was assessed as critically endangered (CR).


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