New Species Of Myrtaceae Research Articles

A new species of Psidium and notes on Neomitranthes from the state of São Paulo, Brazil

Psidium riobonito, a new species of Myrtaceae from the Atlantic Forest of the northeastern portion of the Brazilian state of São Paulo, was collected in High Montane Dense Ombrophilous Forest and is described here. Morphological characters assign the new species to Psidium sect. Apertiflora, due to its leaves with brochidodromous veins, marginal vein parallel to the margin, inflorescences in auxotelic racemes, flowers with open buds with 5 calyx lobes, in addition to dark purple fruits when ripe, with few seeds. Psidium riobonito is morphologically close to P. involutisepalum and P. myrtoides, but differs by the marginal veins 2 to 5 mm from the margin (vs. 1 to 2 mm in P. myrtoides and 1.5 to 2 mm in P. involutisepalum), glabrous or glabrescent leaves when mature (vs. pubescent or sparsely pubescent mainly along the midrib on the abaxial surface in P. myrtoides and sparsely pubescent in P. involutisepalum), pedicels 14–26 mm long (vs. 3–12 mm in P. myrtoides and 8–10 mm in P. involutisepalum). The relationship of P. riobonito to morphologically close species, comments on its taxonomy, ecology and informal conservation status, and a table with morphological characteristics of P. sect. Apertiflora are also provided. We also present for the first time the descriptions of the fruits of Neomitranthes capivariensis and N. pedicellata.

Myrcia tenondeporan, a new species of Myrtaceae from the Atlantic Forest in the Serra do Mar Mountains, Brazil

Myrcia sect. Eugeniopsis is one of the nine sections of Myrcia (Myrciinae, Myrteae, Myrtaceae) and includes mostly species of the current synonym genus Eugeniopsis. Using fieldwork and the analysis of herbarium collections as a basis, we describe here a new species of this section, Myrcia tenondeporan, which is endemic to the Atlantic Forest in the Serra do Mar Mountains. The new species is related to Myrcia vellozoi and Myrcia multipunctata but differs mainly in the leaf shape and size, inflorescence structure and size of floral buds.

Two new species of Myrtaceae from the western Caribbean forests of Panama

Two previously unrecognized species of Myrtaceae, Myrcia damaniensis and Eugenia tain, from the Western Caribbean coastal and swamp forests of Panama are named and described. Their conservation status is evaluated based on the categories and criteria of the IUCN.

Eugenia pokkudanii (Myrtaceae): a new species from Sky Islands of Nelliyampathy, Kerala, India

Eugenia pokkudanii, a new species of Myrtaceae from high ranges of the Western Ghats, Palakkad District, Kerala is described and illustrated here. The species shows similarities with Eugenia discifera and Eugenia indica but is distinct from them by the shape, size and indumentum of leaves, petioles, pedicels, calyces, petals and bracteoles. Detailed description, distribution and conservation notes are provided with photographs and illustration.

<strong>Thirteen new species, new records, and a new combination on Colombian Myrtaceae</strong>

Thirteen new species of Myrtaceae from Colombia are described and illustrated; information about the habitats in which these species are growing, the evaluation of its conservation status, and its affinities are included. Besides, five new records of native and introduced Myrtaceae are reported for Colombia. Also, a new combination of a Myrtaceae species previously described as Calycorectes is proposed here under the genus Eugenia.

A New Large-Leaved Species of Calyptranthes (Myrtaceae) from Ecuador

Calyptranthes magna, a new species of Myrtaceae from Yasuni National Park (Orellana, Ecuador), is described and illustrated.

<p><strong>Three new Amazonian species of <em>Myrcia</em> sect. <em>Myrcia</em> (Myrtaceae) based on morphology and near-infrared spectroscopy</strong></p>

Three new Amazonian species of the Myrcia splendens group from Brazil are proposed based on morphology and near-infrared spectroscopy of leaves and compared with similar taxa. Myrcia eveae resembles M. splendens and may be recognised mostly by large and oblong leaf blades that tapers abruptly at the apex and large bracts; Myrcia otocalyx also resembles M. splendens, being recognised mainly by pyriform flower buds, campanulate hypanthia that are longitudinally ridged, and sepals of different shapes that are patent on fruit; and Myrcia prismatica is similar to M. deflexa, being recognised essentially by chartaceous leaf blades, pedicels clustered at the tips of inflorescence axes, and oblong fruits with longitudinal edges. Spectral data revealed a unique pattern for each one of the new species and the putative related ones, reinforcing the morphological propositions. This is the first study to use morphology and spectroscopy of leaves combined to propose new species of Myrtaceae. Information on geographical distribution, habitat, conservation status, and an identification key are also provided.

Novelties in Psidium (Myrtaceae): A New Species from the Atlantic Forest of Brazil, and Re-establishment of Psidium turbinatum Mattos

Abstract—Psidium involutisepalum, a new species of Myrtaceae, is described and illustrated. The species is easily recognized by the combination of floral buds with calyx minute, truncate or rounded, 0.2‐0.5 × 0.5‐1 mm, involute in fruit, facing the receptacle. The fruits are rounded to pyriform, 20‐30 × 13‐20 mm, yellow when mature, glabrous, striate, sepals involute, facing the receptacle, seeds 1‐6, 7‐9 × 6‐7 mm, rounded to angular. Based on the types and specimens examined, literature survey and the rules of international code of nomenclature, Psidium turbinatum is recognized here as a legitimate name. The relationship of Psidium involutisepalum, P. myrtoides, and P. turbinatum is discussed and comments concerning their taxonomy and ecology are also provided.

Eugenia velutifolia (Myrteae, Myrtaceae), a new species from the Cerrado of São Paulo, Brazil

Eugenia velutifolia is a new species of Myrtaceae from the Cerrado of São Paulo state, Brazil, which is here described, illustrated and compared morphologically with three similar species, E. bimarginata, E. livida and E. suberosa. It differs mainly from those species by the velutinous indumentum on both sides of the leaf blade and twigs, also by the larger sepals.

Eugenia veadeirensis, a new species of Myrtaceae from the highlands of Goiás (Central Brazil) and new miscellaneous records for the Brazilian flora

We describe Eugenia veadeirensis, a new species endemic to the Chapada dos Veadeiros from Brazil. The species most similar to E. veadeirensis is E. michaelneei. However, there are 14 morphological characteristics which differentiate them. In addition, we report Aspilia cardenasii, Bougainvillea praecox, Calea rhombifolia, Cleistocactus samaipatanus, Dimerostemma asperatum and Varronia multicapitata as new records for the Brazilian flora.

A New Species of Calyptranthes (Myrtaceae) from Peru

Abstract. A new species of Myrtaceae from lowland forests of Peru is described and illustrated. Calyptranthes mcvaughii is characterized by the subsessile, ovate to lanceolate leaves, obtuse to subcordate at base and by the spiciform panicles.

Eugenia veraguensis (Myrtaceae), a new species from Golfo de Chiriquí in Veraguas Province, Panama, with notes on Eugenia rhombea

Eugenia veraguensis is described as a new species of Myrtaceae from Panama. It differs from E. rhombea, the most similar taxon, by a combination of its shrubby habit, a distinctive dichotomous branching pattern with 4 to 6 leaved branchlets, chartaceous or subcoriaceous leaves and its small number of stamens. It occurs in coastal forest and scrub on islands off Pacific Western Panama. Following the inclusion of a specimen of E. veraguensis as E. rhombea in Flora Mesoamericana, we discuss the occurrence of this latter species in Panama.

New Species of Myrtaceae from Yasuní National Park, Ecuador

Abstract. Two new species of Myrtaceae from Yasuni National Park in Ecuadorian Amazon, Myrcia gigantifolia and Plinia valenciana, are described and illustrated. Myrcia gigantifolia grows in Varzea forest along Tiputini river, while Plinia valenciana grows in lowland forest.

Two New Species of Myrtaceae from Ecuador

Two new species from Ecuadorian Amazon, Calyptranthes yasuniana and Eugenia bullatifolia, are described and illustrated. Their relationships to closest relatives in these genera are discussed. One hundred and forty-nine individuals of C. yasuniana and 68 individuals of E. bullatifolia with dbh ≥ 1 cm were recorded in a 25-ha plot at Yasuni National Park. Resumen. Se describen y se ilustran Calyptranthes yasuniana y Eugenia bullatifolia, dos especies nuevas de Myrtaceae provenientes de la Amazonia Ecuatoriana. Se discuten sus relaciones con especies afines en los generos. En una parcela de 25 ha en el Parque Nacional Yasuni se ha registrado un total de 149 individuos de C. yasuniana y 68 individuos de E. bullatifolia con DAP ≥ 1 cm.

Two New Species of Myrtaceae from Colombia

Two new species of Myrtaceae are described and illustrated from western tropical humid forests from Valle del Cauca, Colombia. Eugenia calimensis C. Parra-O. is distinguished by leaf shape and densely pubescent inflorescences, and it is somewhat similar to E. chrysophyllum Poir. in the upper surface of the leaf blades and the inflorescence shape. Myrcia icnii C. Parra-O. is affined to M. lapidulosa B. Holst & M. L. Kawas., having similar leaf blades that are elliptic to obovate, coriaceous, and abaxially more or less bullate.

A New Species ofMyrciaria(Myrtaceae) from Ecuador

Abstract. Myrciaria racemosa, a new species of Myrtaceae from Ecuador, is described and illustrated, with notes on distribution and phenology.

Erratum to: Two new species of Myrtaceae (Myrteae) from northern South America

Erratum to: Two new species of Myrtaceae (Myrteae) from northern South America

Two new species of Myrtaceae (Myrteae) from northern South America

Two new species of Myrtaceae are described and illustrated. Campomanesia cucullata is a tree from Monte Alegre, Para, in the Brazilian Amazon. It is most similar to C. lineatifolia, from which it differs by being leafless when flowering, and by having densely congested and very small flowers. Myrcianthes monteucalyptoides is a tree from Tarma, Junin, in Central Peru. It is most similar to Myrcianthes myrsinoides, but the new species differs by a combination of medium-sized, somewhat revolute, broadly-acuminate leaves, and by the solitary, pentamerous flowers with delicate pedicels.

English

English

Myrcia concisa (Myrtaceae), a New Species from Minas Gerais, Brazil

Myrcia concisa Sobral & Leoni, a new species of Myrtaceae from rainforests of the southeastern Brazilian state of Minas Gerais, is described, illustrated, and evaluated for its conservation status according to IUCN criteria. The new species is apparently related to M. pubescens DC., from which it is set apart by the narrower blades and uniflorous to triflorous inflorescences.