New Species Of Microlicia Research Articles

Three new species of Microlicia (Melastomataceae) from Diamantina and Itacambira municipalities, Minas Gerais, Brazil, and a new synonym for the genus

Three new species of Microlicia (Melastomataceae) from Diamantina and Itacambira municipalities, Minas Gerais, Brazil, and a new synonym for the genus

Microlicia delicata and Microlicia pumila (Melastomataceae), two new species from unprotected mountains with campo rupestre vegetation in eastern Brazil

Two new species of Microlicia are described from the Cadeia do Espinhaço, eastern Brazil. Microlicia pumila is morphologically similar to M. karinae and apparently endemic to Serra da Formosa in northern Minas Gerais. It differs by the delicate branches that are conspicuously verrucose, smaller leaves that are more attenuated along the lower half, smaller hypanthia, calyx lobes, petals and stamens, and by the 3-locular capsules that do not surpass the hypanthial torus at maturity. Microlicia delicata, probably restricted to Três Morros in central Chapada Diamantina, is compared to M. plumosa. It can be recognized by the delicate branches with visible uppermost internodes, shorter leaves that are decussate but not cruciate when branches are seen from above, blades that are straight to somewhat recurved distally and free from each other, shorter calyx lobes and somewhat shorter petals. Morphometric analyses were performed to compare new species to related taxa.

A new species of Microlicia (Melastomataceae) endemic to Serra das Confusões expands the range of the genus to Piauí, Brazil

Microlicia piauiensis is described as a new species from Serra das Confusões, a mountainous region located in a transition zone between the Cerrado (Brazilian savanna) and the Caatinga (deciduous bushland in semi-arid areas) domains. Microlicia piauiensis can be recognized by its branchlets, leaves and hypanthia that are glandular-punctate and covered with gland-tipped trichomes, leaves on short petioles, revolute leaf margins, oblong calyx lobes, magenta petals that are yellow at the base, and isomorphic stamens with small but discernible appendages at the ventral base of the pedoconnectives. Microlicia piauiensis has a distribution that is more than 400 kms distant from all areas of endemism previously identified for the tribe Lavoisiereae. It is the first species of Melastomataceae reported as endemic to Piauí. Photos of living and dried specimens are provided, as well as a distribution map, and morphological comparisons with putative relatives. A conservation status of Endangered is suggested for M. piauiensis.

Two new species of Microlicia (Melastomataceae) from Goiás state, Brazil

Two new species of Microlicia (Melastomataceae) from Goiás state, Brazil

Flora of Espírito Santo: tribe Microlicieae (Melastomataceae)

Abstract Microlicieae is one of the most diverse tribes in Melastomataceae, comprising three genera: Microlicia (including the former Chaetostoma, Lavoisiera, Stenodon, and Trembleya), Poteranthera, and Rhynchanthera. It is characterized by anthers with a prolonged pedoconnective, capsular fruits, and reniform, oblong seeds with a foveolate testa. This study presents a taxonomic treatment for the species of Microlicieae in the state of Espírito Santo. A total of ten species were registered in two genera, Microlicia (9 spp.) and Rhynchanthera (1 sp.). Of these, three are new species of Microlicia: M. caparaoensis is endemic to the Caparaó National Park; M. capixaba and M. misteriosa are endemic to a single inselberg, the “Alto Misterioso”, in São Roque do Canaã. A fourth species was kept as Microlicia sp., since further studies will be necessary to confirm its identity. We also provide an identification key, morphological descriptions, distribution data, and comments for all species.

A new species of Microlicia (Melastomataceae) endemic to restingas in Bahia, Brazil

Microlicia goldenbergii is proposed as a new species from restingas of Canavieiras municipality, Bahia, Brazil. It can be recognized by a combination of ovate leaves with margins and apices that are conspicuously revolute, rectangular petioles 0.1–0.2 mm long, adaxial foliar surfaces that are smooth and glabrous to sparsely glandular-punctate, hypanthia densely glandular-punctate and covered with a few scattered eglandular trichomes 0.3–0.7 mm long that are concentrated only at the torus, dimorphic stamens with polysporangiate anthers and 3–4-locular ovaries. We provide line drawings, photographs, comments on the distribution M. goldenbergii and four putative relatives (M. restingae, M. subsetosa, M. confertiflora and M. cordata), and a distributional map.

<p><strong><em>Microlicia morrensis </em></strong><strong>(Melastomataceae): the third species in the genus endemic to Morro do Chapéu, Bahia, Brazil</strong></p>

A new species of Microlicia is described from the municipality of Morro do Chapéu, Bahia, Brazil. Microlicia morrensis is apparently related to M. petasensis and differs by its leaves that have a denser indumentum of eglandular trichomes, hypanthia densely covered with eglandular trichomes, calyx lobes triangular to widely triangular and lacking a stout eglandular trichome at the apex, petals rounded at the apex, and antepetalous stamens with appendages 4/5 to totally divided into two lobes. Photos of herbarium material and dried floral parts, a distribution map, notes on its conservation status, and an identification key to the species of Microlicieae from Morro do Chapéu are provided.

Two new species of Microlicia D.Don (Melastomataceae) from campos rupestres in eastern Brazil

Two new species of Microlicia (Melastomataceae) endemic to campos rupestres in Serra do Cipó, Minas Gerais, Brazil, are described, illustrated and compared with their putative relatives. Microlicia rugosa sp. nov. is similar to M. minutiflora and M. martiana by having fastigiate branches, ascending, lanceolate or oblanceolate leaves with obtuse apex, attenuate base and entire margin, flower with short pedicels (1−2 mm long), magenta petals, and dimorphic stamens. Microlicia rugosa is further characterized by wrinkled surface of hypanthium and sepals, and both leaf surfaces with distinct depressions, which sometimes contain short‐stalked glandular trichomes. Microlicia viscida sp. nov. is similar to M. martiana, M. furnensis and M. rugosa mainly by having fastigiate branches, terete stems without leaves at the base and the bark gradually peeling to reveal the underlying brownish wood and leaves with similar size and shape. Microlicia viscida is characterized by a conspicuous secretion covering branches, leaves, hypanthium and sepals, giving a smooth and bright appearance. The leaf anatomy of both new species is briefly described. Microlicia rugosa and M. viscida are assessed as ‘Endangered’ and ‘Critically Endangered’ respectively, due to its limited extent of occurrence and area of occupancy, according to the IUCN categories and criteria.

A new species of Microlicia (Melastomataceae): first record of the genus for Colombia.

Microlicia (Melastomataceae) is a Neotropical genus nearly restricted to southeastern Brazil, and the Guiana Shield in Venezuela, with a few species in some places in the Andes of Bolivia and Peru. A new species of Microlicia endemic to the mountains of eastern Andes of Colombia is described and illustrated. Its affinities with other morphologically similar species from Venezuela are also documented. This novelty is the first record of the genus for Colombia and the northern Andes. It is argued that this disjunct distribution of the genus is attributable to the phenomenon of long-distance seed dispersal by wind.

Two new species of Microlicia (Melastomataceae) from the Cadeia Do Espinhaço, Brazil

Diagnoses, descriptions, and illustrations are presented for two new Brazilian species of Microlicia from the Cadeia do Espinhaco (M. karinae and M. nodotricha). Diagnostic characters, a distribution map, citation of representative specimens, comparisons with probable relatives, and a conservation assessment are provided for each species. Both species appear to be rare and little collected.

Six new species of Microlicia (Melastomataceae) from Bahia, Brazil

SummaryMicrolicia abairana, M. aureoglandulosa, M. crispa, M. curticalycina, M. ganevii and M. restingae are described from Bahia state, Brazil. Comprehensive descriptions of the species are provided, including detailed illustrations, and statements of geographical distribution, habitat and IUCN conservation status.

Two new species of Microlicia (Melastomataceae) from the Septentrional Espinhaço, Bahia, Brazil

The Serra Geral in Licínio de Almeida municipality, Bahia, Brazil, is a transitional area between the “Cerrado” and “Caatinga” domains constituting an ecological corridor that links the northern and southern portions of the Espinhaço Range. The taxonomic treatment of Melastomataceae in this area revealed two new species of Microlicia. Descriptions of the species are provided, including detailed illustrations, and statements of geographical distribution, habitat and IUCN conservation status.

A New Species of Microlicia (Melastomataceae) with Bright Golden Cuticle from Chapada dos Veadeiros, Goiás (Central Brazil)

Abstract A new species of Microlicia (Melastomataceae) from Goias state is described and illustrated, and a discussion on leaf microscopy is also provided. Microlicia chrysoglandulosa sp. nov. resembles M. martiana, M. psammophila, and M. tenuifolia by the slender and fastigiate branches, triangular sepals, and stamens with tetrasporangiate thecae. However, it differs by the remarkable indumentum of spherical short-stalked glandular trichomes on the internodes, abaxial leaf surfaces andmargins, pedicels, hypanthium and sepals. The presence of a bright golden cuticle covering the glandular trichomes is reported here for the first time in Microlicia.

Two new species of Microlicia (Melastomataceae) from the Rupestrian Grasslands of Serra do Cipó, Minas Gerais, Brazil

In the course of preparing a monograph of Microlicieae (Melastomataceae) for Serra do Cipó, two new species of Microlicia were discovered that are described and illustrated here. The two proposed species, Microlicia nortecipoana and Microlicia obovatifolia, are probably endemic to this mountain range. Morphological descriptions, diagnoses, photographs and comments on their affinities are provided. Their conservation status is assessed using IUCN criteria.

Microlicia candolleana (Melastomataceae): a new endemic species to the Espinhaço range, Minas Gerais, Brazil

A new species of Microlicia from Serra do Cipó (southern Espinhaço range, Brazil) is described and illustrated. Microlicia candolleana has branches, leaves, pedicels, hypanthium and sepals covered by spherical, golden glands, sessile leaves with evident nerves on both surfaces and subulate sepals, longer or with the same length as the hypanthium.

<I>Microlicia cogniauxiana</I> and <I>Microlicia naudiniana</I> (Melastomataceae), Two New Species from the Espinhaço Range, Brazil

Abstract Two new species of Microlicia (Melastomataceae) endemic to campos rupestres from the Espinhaco mountain range in Minas Gerais, Brazil, are described and illustrated, and a discussion on leaf anatomy is also provided. Microlicia cogniauxiana is similar to M. graveolens, M. passerina, and M. tomentella by having an indumentum of stalked glands, pink to pink-magenta petals, and dimorphic stamens with bicolored anthers. It can be distinguished by its leaves with noticeable veins on the adaxial surface, and glandular-ciliate margins. Microlicia naudiniana is similar to M. nervosa, but can be distinguished by its sessile leaves with a conspicuously visible midrib on the abaxial surface and petals with rounded apex and revolute margin. It differs from M. passerina by having a sparser indumentum covering the entire plant.

Microlicia crassa and M. maculata spp. nov. (Melastomataceae) from Minas Gerais, Brazil: morphology and leaf anatomy

Two new species of Microlicia from campos rupestres of Minas Gerais are described, illustrated and compared with their relatives. Microlicia crassa sp. nov. is similar to M. formosa, and M. maculata sp. nov. is similar to M. isophylla and M. tetrasticha. The trichomes covering both surfaces of the leaves of the two new species and their relative, M. isophylla may be characterized as sessile glands under a stereomicroscope, but anatomical studies revealed the presence of a short stalk. Microlicia crassa and M. maculata are assessed as “Endangered”, according to the IUCN categories and criteria.

<I>Microlicia longicalycina</I> (Melastomataceae), a New Species from the State of Minas Gerais, Brazil, with Notes on Leaf Anatomy

Abstract During a floristic survey of Melastomataceae carried out in Biribiri State Park and around Diamantina, Minas Gerais State, Brazil, we found a new species of Microlicia, which is endemic to campos rupestres from the Espinhaco Mountain Range. Microlicia longicalycina has flowers with long calyx lobes, a dense indumentum of glandular trichomes on the hypanthium, leaves with a light green and ciliate margin, and with a mix of glandular trichomes and pale, thickened, long trichomes. A discussion on the leaf anatomy of the species is provided.

<span lang="EN-GB">A new species of Microlicia and a checklist of Melastomataceae from the mountains of Capitólio municipality, Minas Gerais, Brazil</span>

Microlicia furnensis, a new endemic species from campos rupestres of Capitólio municipality, Minas Gerais state, Brazil, is described and illustrated. The new species is characterized by its cream petals with pale pink blotches at the apex, sessile or subsessile leaves and golden glandular trichomes and short pale trichomes covering the leaves, pedicels, hypanthium and the calyx lobes. It resembles M. confertiflora, M. isophylla and M. flava, the latter also occuring in Capitólio, Minas Gerais state. A list of species of Melastomataceae from the mountains of Capitólio municipality is also provided.

Four new species of Microlicia (Melastomataceae) from Chapada Diamantina, Bahia, Brazil

Microlicia D. Don (Melastomataceae) has about 120 species concentrated in central Brazil. During the inventory of Microlicieae of Mucugê, Chapada Diamantina, Bahia, Brazil we have found four new species of Microlicia, all endemic to Chapada Diamantina. Microlicia hirta Pataro & R. Romero is found in the Lençóis and Mucugê municipalities, while M. intercalycina Pataro & R. Romero, M. macropetala Pataro & R. Romero and M. pulchra Pataro & R. Romero are endemic to Mucugê. In M. pulchra the columella is persistent, a character described for the first time for the genus. The four new species are here described, discussed and illustrated. Conservation assessments based on IUCN criteria are also given.