Hoehnea grandiflora (Lamiaceae), a rare, critically endangered new species from southern Brazil

Phytotaxa ◽  
2018 ◽  
Vol 349 (2) ◽  
pp. 159
Author(s):  
LUÍS ADRIANO FUNEZ ◽  
GUSTAVO HASSEMER

We describe here Hoehnea grandiflora, a rare, critically endangered new species of Lamiaceae from high-elevation bogs in southern Brazil. The new species is similar to H. scutellarioides and can be distinguished by its shape and size of leaves, as some floral features. Its conservation status is assessed as Critically Endangered, because the new species is known from only one population located in an environmentally unprotected area. Urgent conservation studies and actions are necessary to prevent the extinction of this species. We also provide an identification key to the five species in the genus Hoehnea.

Phytotaxa ◽  
2021 ◽  
Vol 502 (2) ◽  
pp. 149-159
Author(s):  
HASAN YILDIRIM ◽  
MEHTAP TEKŞEN

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).


PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2050 ◽  
Author(s):  
Gustavo Hassemer ◽  
Nina Rønsted

This article presents and describesPlantago humboldtiana, an extremely narrow endemic rheophytic new species from a waterfall in Corupá, Santa Catarina state, southern Brazil. The new species is unique in presenting a combination of type-G antrorse trichomes on scapes, pendulous inflorescences and 1-seeded pyxidia. Only one population is known to exist, despite intensive search efforts in nearby, similar environments. Its conservation status is assessed as critically endangered (CR) as the only known population is restricted to a dramatically small area, and is subject to extreme fluctuation due to occasional floods, and also to intense visitation by tourists, which can disturb its fragile habitat. We also present an updated identification key to the species ofPlantagothat occur in Santa Catarina. The recent description of three narrow endemic, threatened new species ofPlantagoin Santa Catarina, which is the Brazilian state with its flora best studied, highlights the need for more taxonomic research, especially in the neotropics.


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 272 (1) ◽  
pp. 63 ◽  
Author(s):  
LUÍS ADRIANO FUNEZ ◽  
GUSTAVO HASSEMER ◽  
JOÃO PAULO RAMOS FERREIRA

This contribution presents and describes Tradescantia schwirkowskiana, a narrow endemic new species from Santa Catarina state, southern Brazil. We assess here the conservation status of this new species as critically endangered, according to the IUCN criteria. We present here a complete description, illustrations and comments on the new species, along with an identification key to the species of Tradescantia that occur in Santa Catarina. Furthermore, we designate here a lectotype and an epitype for T. crassula, the morphologically-closest species to T. schwirkowskiana.


Phytotaxa ◽  
2019 ◽  
Vol 423 (2) ◽  
pp. 105-110
Author(s):  
LUÍS ADRIANO FUNEZ ◽  
JULIO CESAR JARAMILLO ◽  
ELISANDRO RICARDO DRECHSLER-SANTOS

We describe here Begonia medeiroii, a narrow endemic species from the Atlantic Rainforest. The conservation status of this species was assessed as critically endangered according to IUCN criteria. This species resembles to B. catharinensis and B. hirtella in some characteristics, differing among other features due the presence of adventitious vegetative buds on the adaxial surface of the leaves.


PhytoKeys ◽  
2019 ◽  
Vol 128 ◽  
pp. 39-46
Author(s):  
David Kenfack ◽  
Diosdado Ekomo Nguema

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.


Phytotaxa ◽  
2019 ◽  
Vol 394 (1) ◽  
pp. 79
Author(s):  
CÉSAR ADRIÁN GONZÁLEZ-MARTÍNEZ ◽  
LUCIO LOZADA-PÉREZ ◽  
LEONARDO O. ALVARADO-CÁRDENAS

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.


2021 ◽  
Vol 46 (1) ◽  
pp. 130-151
Author(s):  
Luís A. Funez ◽  
Gustavo Hassemer ◽  
Rafael Trevisan

Abstract—Lysimachia is a genus that was recently recircumscribed and greatly enlarged by the inclusion of many genera in the Primulaceae. In this work five new species, all endemic from the grasslands of southern Brazil, are described, two new combinations are proposed, and 10 typifications are effected. The preliminary conservation status of these species are assessed, and we also provide field photographs and distribution maps. Furthermore, we provide an identification key to all species of Lysimachia that occur in Brazil.


Author(s):  
Danielly da Silva Lucena ◽  
Francione Gomes-Silva ◽  
Marccus Alves

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.


Phytotaxa ◽  
2020 ◽  
Vol 455 (3) ◽  
pp. 187-195
Author(s):  
J. ANTONIO VÁZQUEZ GARCÍA ◽  
ERICK TRIBOUILLIER NAVAS ◽  
FREDY ARCHILA ◽  
MARIO ESTEBAN VÉLIZ PÉREZ

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.


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