Cathedra (Olacaceae s. l.): A New Species and Morphological, Nomenclatural, and Distributional Updates

2021 ◽  
Author(s):  
Danielly da Silva Lucena ◽  
Francione Gomes-Silva ◽  
Marccus Alves
Keyword(s):  
New Species ◽  
Conservation Status ◽  
The State ◽  
Identification Key ◽  
Critically Endangered ◽  
Campos Rupestres ◽  
A New Species

In this study, five species of Cathedra (Olacaceae s. l.) were recognized, four of them endemic to Brazil and one widely distributed, occurring in Brazil, Colombia, Ecuador, Guyana, Peru, and Venezuela. Cathedra rupestris, a new species described here, is endemic to campos rupestres (Cerrado) in the state of Bahia, and is differentiated from other species of the genus mainly by reticulate bark, length of pedicel in flower (1.5–2.2 mm), length of petals (3–3.5 mm), as well as by the proportion of the hypogynous disk in relation to the fruit, which inthis species is limited to the base of the drupe. Regarding informal conservation status, C. bahiensis, C. grandiflora, and C. rubricaulis are suggested as Endangered, while C. acuminata and C. rupestris as Least Concern and Critically Endangered, respectively. Here the genus is reviewed, nomenclatural (one synonymization and two typifications) and geographic distributional updates are provided, in addition to an identification key, descriptions, and illustrations. Emended descriptions are also provided for two species.

Dictyanthus stevensii (Apocynaceae; Asclepiadoideae; Gonolobinae), a new species from Chimalapas region, Oaxaca, Mexico

Phytotaxa ◽  
2019 ◽  
Vol 394 (1) ◽  
pp. 79
Author(s):  
CÉSAR ADRIÁN GONZÁLEZ-MARTÍNEZ ◽  
LUCIO LOZADA-PÉREZ ◽  
LEONARDO O. ALVARADO-CÁRDENAS
Keyword(s):  
New Species ◽  
Conservation Status ◽  
The State ◽  
Identification Key ◽  
Critically Endangered ◽  
A New Species

A new species of the genus Dictyanthus is herein described and illustrated, more than 30 years since the last paper describing new species of this genus. Dictyanthus stevensii sp. nov. is known only from the Zoque forest in the Chimalapas region in the state of Oaxaca, Mexico. This species differs from all other species because it has the smallest flowers within the genus. It is morphologically related to D. eximius, a microendemic species of Chiapas. Information on the distribution and habitat of this new species is given, and its conservation status is proposed as Critically Endangered B2ab(ii). An identification key to Dictyanthus species in southern and southerneast Mexico is also provided.

Fritillaria arsusiana (Lilieae, Liliaceae), a new species from southern Anatolia

Phytotaxa ◽  
2021 ◽  
Vol 502 (2) ◽  
pp. 149-159
Author(s):  
HASAN YILDIRIM ◽  
MEHTAP TEKŞEN
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Related Species ◽  
Conservation Status ◽  
Flower Colour ◽  
Identification Key ◽  
Critically Endangered ◽  
Diagnostic Characters ◽  
A New Species ◽  
Shape And Size

In this study, Fritillaria arsusiana (Liliaceae) is described and illustrated as a new species from Hatay province in southern Anatolia, Turkey. It is related to F. amana and F. hermonis by habitus features and broadly campanulate flowers, but differs mainly by its bulb shape and size, smaller leaf and flower features, and flower colour. It has also been morphologically compared with F. wendelboi, F. pinardii, and F. latakiensis. The detailed description, diagnostic characters, original photographs, geographical distribution, habitat and phenology, etymology, conservation status, and identification key of the new and the related species are presented in this study. IUCN conservation status of F. arsusiana is suggested as Critically Endangered (CR).

A new species of Calea (Neurolaeneae, Asteraceae) from the Atlantic Forest, Minas Gerais, southeastern Brazil

Phytotaxa ◽  
2021 ◽  
Vol 494 (1) ◽  
pp. 129-136
Author(s):  
GENILSON ALVES DOS REIS E SILVA ◽  
JIMI NAOKI NAKAJIMA
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Conservation Status ◽  
Minas Gerais ◽  
The State ◽  
Identification Key ◽  
Southeastern Brazil ◽  
Distribution Map ◽  
A New Species

A new species, Calea arachnoidea, which belongs to Calea sect. Meyeria, is hereby described and illustrated. This species occurs in the Serra Negra region, located in the southern portion of the “Zona da Mata” in the state of Minas Gerais, southeastern Brazil. Calea arachnoidea resembles C. quadrifolia, C. heteropappa and C. semirii, and its relationships with these species are discussed and an identification key for the species of C. sect. Meyeria in the state of Minas Gerais is provided. Additionally, photographs, a distribution map, comments about habitat and conservation status are provided.

scholarly journals A new species of Rhaptopetalum (Lecythidaceae) from south-western Gabon

PhytoKeys ◽  
2019 ◽  
Vol 128 ◽  
pp. 39-46
Author(s):  
David Kenfack ◽  
Diosdado Ekomo Nguema
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Identification Key ◽  
Critically Endangered ◽  
A New Species

Rhaptopetalumrabiense Kenfack & Nguema, sp. nov. from the Rabi forest in south-western Gabon is described, illustrated and assigned a provisional conservation status of “Critically Endangered”. An identification key to the five Gabonese species of Rhaptopetalum is also provided.

scholarly journals Magnolia ottoi (Magnoliaceae) a new species from Purulhá, Baja Verapaz, Guatemala: conservation and Mayan Q’eqchi ‘ ethnotaxonomy

Phytotaxa ◽  
2020 ◽  
Vol 455 (3) ◽  
pp. 187-195
Author(s):  
J. ANTONIO VÁZQUEZ GARCÍA ◽  
ERICK TRIBOUILLIER NAVAS ◽  
FREDY ARCHILA ◽  
MARIO ESTEBAN VÉLIZ PÉREZ
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Wood Quality ◽  
Field Research ◽  
Identification Key ◽  
Critically Endangered ◽  
A New Species ◽  
Iucn Criteria

A new species of Magnolia subsect. Talauma (“jomcoj”), Magnolia ottoi, is described and illustrated. The conservation status of this new species is proposed as critically endangered (CR) according to IUCN criteria. An identification key and a map with the distribution of the new species and other species of Magnolia subsect. Talauma from Guatemala and neighboring areas (Honduras and Chiapas, México) is also presented. Our field research also unveiled the Mayan Q’eqchi’ ancestral taxonomic knowledge which differentiates magnolias of two different subsections, Magnolia and Talauma, based on wood quality and properties. They consistently distinguished them as “coj” and “jomcoj” respectively.

Stryphnodendron flavotomentosum (Leguminosae, Caesalpinioideae, mimosoid clade), a New Species from the Atlantic Forest, Brazil

2021 ◽  
Vol 46 (1) ◽  
pp. 70-74
Author(s):  
Alexandre Gibau de Lima ◽  
Juliana de Paula-Souza ◽  
Viviane Renata Scalon ◽  
Vinicius Castro Souza
Keyword(s):  
New Species ◽  
Endangered Species ◽  
Atlantic Forest ◽  
Conservation Status ◽  
Identification Key ◽  
Critically Endangered ◽  
Taxonomic Treatment ◽  
Critically Endangered Species ◽  
Brazilian Flora ◽  
A New Species

Abstract—During a taxonomic treatment of Stryphnodendron (Leguminosae, Caesalpinioideae, mimosoid clade) for the Brazilian Flora 2020 Project, one new presumably critically endangered species from the Atlantic Forest domain was found, and is so far only known to western Espírito Santo state. Stryphnodendron flavotomentosum is described and illustrated, and information on its distribution, habitat, phenology, and preliminary conservation status is provided. Additionally, an identification key for the species of Stryphnodendron from the Brazilian rainforests is presented.

Silene lulakabadensis (Caryophyllaceae), a New Species from Iran

2020 ◽  
Vol 28 (1) ◽  
pp. 24-28
Author(s):  
Mahnaz Heidari Rikan ◽  
Farrokh Ghahremaninejad ◽  
Mostafa Assadi
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Green Plant ◽  
Critically Endangered ◽  
Rare Plant ◽  
Soil Slopes ◽  
Dark Green ◽  
A New Species

Silene lulakabadensis Heidari, F. Ghahrem. & Assadi is described as a new species from Zanjan Province, Iran. The new species is a dark green plant, perennial and woody at the base, that was collected on marl soil slopes at 2100 m. It is believed to be closely related to S. eriocalycina Boiss. from section Auriculatae (Boiss.) Schischk. but is a smaller plant, with much shorter internodes, and pinkish-white retuse to emarginate petals with very small or no scales. It is a very rare plant and its conservation status is assessed as Critically Endangered.

A new species of Impatiens (Balsaminaceae) from Southwestern Thailand

Phytotaxa ◽  
2014 ◽  
Vol 174 (4) ◽  
pp. 237 ◽  
Author(s):  
Saroj Ruchisansakun ◽  
PRAMOTE TRIBOUN ◽  
THAYA JENJITTIKUL
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Critically Endangered ◽  
Pale Pink ◽  
A New Species

Impatiens suksathanii Ruchis. & Triboun, a new species from a limestone area in Kanchanaburi Province in Southwestern Thailand, is described and illustrated. This endemic new species is clearly distinguished from the most similar I. namkatensis T.Shimizu by having sessile to very short petioles, linear, narrowly lanceolate to narrowly oblanceolate laminas, and pale pink flowers. Its conservation status is also assessed as Critically Endangered.

scholarly journals A new species of Cochemiea (Cactaceae, Cacteae) from Sinaloa, Mexico

2020 ◽  
Author(s):  
Leccinum Jesús García Morales ◽  
Rodrigo Homero González González ◽  
Jesús García Jiménez ◽  
Duilio Iamonico
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Relevant Literature ◽  
Small Population ◽  
Critically Endangered ◽  
Herbarium Specimens ◽  
The North ◽  
Hummingbird Pollination ◽  
Diagnostic Key ◽  
A New Species

Background and Aims: Cochemiea is a genus which currently comprises five species occurring in Mexico. It is morphologically characterized by cylindrical decumbent to prostrate stems and by a long red-scarlet zygomorphic perianth, presumably specialized for hummingbird pollination. As part ofthe ongoing taxonomic studies on the North Mexican flora, a population discovered by Thomas Linzen in 2012 in central Sinaloa (Mexico), previously identified as Mammillaria sp., actually refers to a Cochemiea species and cannot be ascribed to any of the known species of that genus. As a consequence,we here propose to describe this population as a a new species for science.Methods: The work is based on field surveys (autumn 2018 and spring 2019) in central Sinaloa, examination of herbarium specimens, and analysis of relevant literature. Its conservation status was assessed following the guidelines of the IUCN; AOO and EOO were calculated with the programGeoCAT.Key results: Cochemiea thomasii is described and illustrated from Sinaloa. The new species is morphologically similar to C. halei from which it differs by the hanging stems, the larger conical tubercles, less numerous and shorter central spines, and the ovoid fruits. A diagnostic key of the knownCochemiea species is included.Conclusions: Cochemiea thomasii is endemic to the state of Sinaloa where it occupies a small area. On the basis of the criteria B2a (geographic range) and C (small population) of IUCN, the new species can be assessed as Critically Endangered (CR) or Vulnerable (VU). Adopting the precautionary approach, Cochemiea thomasii is considered as Critically Endangered (CR).

Behuria mestrealvarensis (Melastomataceae): a new species on an inselberg in Espírito Santo, Brazil

Phytotaxa ◽  
2016 ◽  
Vol 255 (3) ◽  
pp. 281 ◽  
Author(s):  
DIEGO TAVARES IGLESIAS ◽  
VALQUÍRIA FERREIRA DUTRA ◽  
RENATO GOLDENBERG
Keyword(s):  
New Species ◽  
Habitat Quality ◽  
The State ◽  
Critically Endangered ◽  
Fragmented Landscape ◽  
Espírito Santo ◽  
Espirito Santo ◽  
A New Species ◽  
Iucn Criteria ◽  
Single Locality

Behuria mestrealvarensis (Melastomataceae) from the state of Espírito Santo, Brazil, is described, illustrated and compared with B. capixaba, the species most similar to it. Behuria mestrealvarensis differs from B. capixaba by the glabrous petioles and hypanthia, by the solitary flowers or these in simple or compound triads up to 7 flowers, elliptic bracteoles almost the same size of the pedicel and hypanthium, sepals with eciliate margins and ovary apex with trichomes up to 0.5 mm. It occurs in a single locality, on an isolated, ca. 800m elev. inselberg. Due to its restricted occupancy area, fragmented landscape and poor habitat quality, this species must be considered as Critically Endangered according to IUCN criteria.

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