Pariana caxiuanensis (Parianinae, Poaceae): a new species of an enigmatic genus of herbaceous bamboos from the Brazilian Amazon

Phytotaxa ◽  
2021 ◽  
Vol 510 (2) ◽  
Author(s):  
KAUÊ NICOLAS LINDOSO DIAS ◽  
FABRÍCIO MOREIRA FERREIRA ◽  
PEDRO LAGE VIANA
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Brazilian Amazon ◽  
Morphological Description ◽  
Herbaceous Bamboos ◽  
Status Assessment ◽  
A New Species

Pariana caxiuanensis (Poaceae) is described and illustrated as a new species from the Brazilian Amazon. The new species is characterized by having the leaves clustered at the apex of the leafy culm, fimbriae few to absent, dimorphic flowering culms, large ligules (2.5–4 mm long), and pubescent to hirsute synflorescences. We present a morphological description, illustrations of the new species, the conservation status assessment, and a key to differentiate P. caxiuanensis from its morphologically related congeners.

Pleroma carajasense (Melastomataceae), a new species endemic to ironstone outcrops in the Brazilian Amazon

Phytotaxa ◽  
2017 ◽  
Vol 329 (3) ◽  
pp. 233
Author(s):  
KEILA CRISTINA DE JESUS ROCHA ◽  
RENATO GOLDENBERG ◽  
PEDRO LAGE VIANA ◽  
FABRÍCIO SCHMITZ MEYER
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Brazilian Amazon ◽  
Morphological Description ◽  
Northern Brazil ◽  
A New Species ◽  
Iucn Criteria

A new species of Pleroma from Serra dos Carajás, Pará state, Brazil, is described. Pleroma carajasense occurs in southeastern Amazonia, northern Brazil, in canga vegetation, on ironstone outcrops. It is morphologically related to Tibouchina caatingae, because both are shrubs with elliptic to oval leaves, conspicuous petioles (3–17 mm and 10–15 mm, respectively), a pair of elliptic bracteoles, and purple petals, anthers (both cycles) and style. Pleroma carajasense differs from T. caatingae by its chartaceous leaves (versus coriaceous in T. caatingae), with an obtuse to cuneate base (vs. obtuse to subcordate), hypanthium 4–7 × 1.2–4 mm (vs. 10–15 × 3–5 mm). According to IUCN criteria, this species should be considered endangered (EN). A morphological description, illustrations, photos in the field, scanning electronic micrographs of the leaf indumentum and seeds, information on conservation status and distribution are presented.

Schinus pampeana (Anacardiaceae): a new endangered species from Rio Grande do Sul, Brazil

Phytotaxa ◽  
2020 ◽  
Vol 452 (4) ◽  
pp. 278-287
Author(s):  
SÉRGIO AUGUSTO DE LORETO BORDIGNON ◽  
CLEUSA VOGEL ELY
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Rio Grande ◽  
Morphological Description ◽  
Similar Species ◽  
Rio Grande Do Sul ◽  
Distribution Map ◽  
Ecological Data ◽  
Status Assessment ◽  
A New Species

Schinus pampeana is a new species from Brazilian Pampa. The new species was tentatively included in Schinus sect. Terebinthifolia, and is morphologically most similar to Schinus lentiscifolia and S. weinmanniifolia. We present here a detailed morphological description, a geographical distribution map, IUCN conservation status assessment, ecological data, photographs, and a table of diagnostic characters of S. pampeana and the most similar species. Schinus pampeana increases the total number of Schinus to about 49 species, of which eleven are recorded in Brazil.

Taxonomic revision of the genus Massularia (Rubiaceae, Gardenieae), with a new species from Central Africa

Phytotaxa ◽  
2015 ◽  
Vol 203 (3) ◽  
pp. 263
Author(s):  
Bonaventure Sonké ◽  
Ehoarn Bidault ◽  
Vincent Droissart
Keyword(s):  
New Species ◽  
Central African Republic ◽  
Conservation Status ◽  
Field Investigation ◽  
Careful Examination ◽  
Morphological Description ◽  
Herbarium Specimens ◽  
Distribution Maps ◽  
Status Assessment ◽  
A New Species

Based on a careful examination of more than 700 herbarium specimens and field investigation, a comprehensive revision of the genus Massularia is given. Massularia stevartiana, a new species from Central African Republic, Cameroon and Gabon is described and illustrated. The novelty is distinguished from M. acuminata, the only other species previously recognized in the genus, by its smaller leaves and flowers. For the two species recognized we provide a morphological description, distribution, habitat, phenology and IUCN conservation status assessment. Distribution maps and a dichotomous key are also provided.Based on a careful examination of more than 700 herbarium specimens and field investigation, a comprehensive revision of the genus Massularia is given. Massularia stevartiana, a new Rubiaceae species from Central African Republic, Cameroon and Gabon is described and illustrated. The novelty is distinguished from M. acuminata, the only other species recognized within the genus, by its smaller leaves and flowers. Another typical character for M. stevartiana is its leaves always cunate. For the two recognized taxa we provide a morphological description, distribution, habitat, phenology and IUCN conservation status assessment. Distribution maps and a taxonomic key are also provided.

Polystachya orophila (Orchidaceae, Polystachynae), a new species from tropical West Africa, and clarification on the nomenclature and taxonomy of P. microbambusa

Phytotaxa ◽  
2016 ◽  
Vol 260 (3) ◽  
pp. 247 ◽  
Author(s):  
EHOARN BIDAULT ◽  
PORTER P. LOWRY ◽  
TARIQ STÉVART
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Red List ◽  
Morphological Description ◽  
Distribution Map ◽  
Dichotomous Key ◽  
Mining Project ◽  
Status Assessment ◽  
History Of ◽  
A New Species

Polystachya orophila, a new species of Orchidaceae, is described based on specimens collected during the baseline study of the Guinean Nimba Mountains for the environmental impact assessment for a proposed mining project. While material belonging to this species was mentioned as early as 1920 by Chevalier, it has historically been confused with P. microbambusa, from which it differs by its typically Polystachya-like clustered pseudobulbs, placing it in P. sect. Polystachya, whereas P. microbambusa has pseudobulbs successively growing on top of one another, forming developed and persistent stems, and is the sole representative of P. sect. Dimorphocaules. The complex taxonomic and nomenclatural history of P. microbambusa is also clarified. For both taxa we provide a morphological description as well as information on distribution, habitat, and phenology, an IUCN conservation status assessment using the Red List criteria, and a distribution map, along with a dichotomous key that also includes the most similar members of P. sect. Polystachya.

scholarly journals A new species of Coccoloba P. Browne (Polygonaceae) from the Brazilian Amazon with exceptionally large leaves

2019 ◽  
Vol 49 (4) ◽  
pp. 324-329 ◽  
Author(s):  
Efigenia de MELO ◽  
Carlos Alberto CID FERREIRA ◽  
Rogério GRIBEL
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Natural Habitat ◽  
Morphological Characteristics ◽  
Brazilian Amazon ◽  
Cultivated Plants ◽  
New Taxon ◽  
Madeira River ◽  
Individual Trees ◽  
A New Species

ABSTRACT We describe and illustrate a new species of Coccoloba (Polygonaceae), named Coccoloba gigantifolia, from the Brazilian Amazon. It resembles Coccoloba mollis Casar, but differs from the latter species by its much larger leaves in the fertile branches. The species has only been recorded in the Madeira River basin, in the states of Amazonas and Rondônia, in the central and southwestern Brazilian Amazon. The description was based on herbarium material, cultivated plants, and individual trees in their natural habitat. We provide illustrations, photographs, and an identification key with morphological characteristics that distinguish the new taxon from the other two related taxa of the Coccoloba sect. Paniculatae, as well as comments on the geographic distribution and conservation status of the species.

Iris pseudomeda (Iridaceae), a new species of Iris section Oncocyclus from Iran

Phytotaxa ◽  
2021 ◽  
Vol 527 (1) ◽  
pp. 75-82
Author(s):  
MONA SALIMBAHRAMI ◽  
HOJJATOLLAH SAEIDI ◽  
ALI BAGHERI
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Distribution Range ◽  
Morphological Description ◽  
Mountain Range ◽  
Zagros Mountain ◽  
Taxonomic Relationships ◽  
Northwestern Iran ◽  
Botanical Illustrations ◽  
A New Species

Iris pseudomeda is described and illustrated as a new species of Iris section Oncocyclus from Kurdistan province in northwestern Iran. It occurs among subalpine flora of Zagros mountain range, on stony calcareous hillsides and the brink of grassland fields. A complete morphological description, conservation status, botanical illustrations, notes on habitat and distribution range are presented for the new species. Furthermore, taxonomic relationships of I. pseudomeda with other members of this rhizomatous bearded section, particularly I. meda, are also discussed.

Hysterionica chamomilloides (Asteraceae: Astereae) a new species from the grassland ecosystem of Río de La Plata

Phytotaxa ◽  
2021 ◽  
Vol 482 (1) ◽  
pp. 36-44
Author(s):  
LEONARDO PAZ DEBLE
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Morphological Description ◽  
Similar Species ◽  
South American ◽  
Review Of Literature ◽  
South American Species ◽  
Field Surveys ◽  
Mountainous Regions ◽  
A New Species

Hysterionica s.l. (including Neja) comprises ca. 15 species distributed mainly in the grasslands of southern Brazil, Uruguay, central and northern Argentina and Southern Paraguay. Based on field surveys, study of nomenclatural types and other specimens, and review of literature, a new species is proposed here, Hysterionica chamomilloides, endemic of mountainous regions of northern Uruguay, and southwestern Rio Grande do Sul state, Brazil. This work provides a detailed morphological description of the new species, information on its geographic distribution, habitat, phenology, conservation status, and discusses the main differences between H. chamomilloides and the morphologically most similar species. Illustrations, images and a key to the South American species of Hysterionica are also supplied.

Lurking in the Shadows: A New Species of Drypetes (Putranjivaceae) from Central Africa Hiding in Forest Plots and Herbaria

2021 ◽  
Vol 29 ◽  
pp. 14-23
Author(s):  
Alejandro Quintanar ◽  
Patricia Barberá ◽  
Diosdado Nguema ◽  
Vicent Medjibe ◽  
Zoë A. Goodwin ◽  
...  
Keyword(s):  
New Species ◽  
Democratic Republic ◽  
Conservation Status ◽  
Central Africa ◽  
Forest Tree ◽  
Wide Distribution ◽  
Morphological Description ◽  
Republic Of The Congo ◽  
Herbarium Collections ◽  
A New Species

Here we publish a new species of forest tree of the genus Drypetes Vahl (Putranjivaceae), D. umbricola D. J. Harris & Quintanar, which has a wide distribution in Central Africa (Cameroon, Central African Republic, Democratic Republic of the Congo, Gabon, and Republic of the Congo). It is known from 70 herbarium collections and additional sterile plot vouchers. A differential diagnosis, detailed morphological description, photographs, an illustration, and information about its habitat, distribution, and conservation status are provided.

Manihot montana, a new species of Manihot sect. Graciles (Euphorbiaceae) from the Brazilian savannas

Phytotaxa ◽  
2019 ◽  
Vol 403 (3) ◽  
pp. 210
Author(s):  
MARCOS JOSÉ DA SILVA ◽  
ALESSANDRO OLIVEIRA DE SOUZA ◽  
ALEXANDRE ANTÔNIO ALONSO ◽  
HANS-JOACHIM ESSER
Keyword(s):  
New Species ◽  
Leaf Anatomy ◽  
Conservation Status ◽  
Systematic Position ◽  
Similar Species ◽  
Status Assessment ◽  
A New Species

Manihot montana, a new species of wild cassava, is described and illustrated based on material from the Brazilian savannas. We compared its macromorphology and leaf anatomy to M. paviifolia, the most morphologically similar species. In addition, we provide images of the new species, details on its distribution, conservation status assessment, phenology and comments on its ecology, morphological relationships and systematic position.

A new species of Lophogyne s.l. (Podostemaceae) from the Amazonian savanna of Amapá, Brazil

Phytotaxa ◽  
2020 ◽  
Vol 474 (2) ◽  
pp. 172-178
Author(s):  
CLAUDIA P. BOVE ◽  
C. THOMAS PHILBRICK ◽  
ARTHUR R. LOURENÇO
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Brazilian Amazon ◽  
Identification Key ◽  
Apical Region ◽  
A New Species

A new species of Lophogyne from a Brazilian Amazon savanna is described and illustrated. It is morphologically similar to the former Jenmaniella species, due to the presence of stems that arise from prostrate roots attached to the substratum, a gynophore at anthesis, and three prominent non-suture ribs per valve in the fruit, currently merged in Lophogyne s.l.. Lophogyne wilsonii can be distinguished from all others species of  Lophogyne s.l. by the apical region of the roots unattached from the substratum. The conservation status is discussed and an identification key is presented.

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