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Pabstiella recurviloba. A-Habit; B-Portion of inflorescence with flower in side view; C-Dorsal sepal; DSynsepal; E-F-Petals; G-H-Lip; I-Portion of ovary, column and lip, side view. Drawn by C. A. Luer based on the holotype (A. Toscano de Brito & M. Klingelfus 3331, MBM).
Source publication
Two new species, Pabstiella calimanii and Pabstiella recurviloba, are described and illustrated. One new combination, Pabstiella deltoglossa, is proposed. Eight species and one variety are proposed as synonyms. They are listed in alphabetical order: Pabstiella avenacea, P. leucosepala and Pleurothallis mathildae as synonyms of Pabstiella elegantula...
Context in source publication
Context 1
... broader elliptical leaves, minutely pubescent sepals, and a narrower, obscurely trilobed, oblong lip, instead of much narrower and flat leaves, glabrous or only microscopically papillose sepals, and a lip with distinct, erect, broadly rounded, lateral lobes, which, when expanded, render a cordate outline. [334253]). C. Luer Illustr. 21904. Fig. ...
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Two new species, Pabstiella calimanii and Pabstiella recurviloba, are described and illustrated. One new combination, Pabstiella deltoglossa, is proposed. Eight species and one variety are proposed as synonyms. They are listed in alphabetical order: Pabstiella avenacea, P. leucosepala and Pleurothallis mathildae as synonyms of Pabstiella elegantula...
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Citations
... The species of this neotropical genus are predominantly epiphytes, although some species can also grow facultatively as as rupicolous and are primarily distributed across the Atlantic Rainforest of Brazil (Toscano de Brito & Luer 2016, Gutierrez Morales et al. 2021a), a diverse biome that includes coastal evergreen forests, semi-deciduous and deciduous forests, restingas, swamps, high-altitude forests, and subtropical mixed forests (Peres et al. 2020). Pabstiella species inhabit all these vegetation types; with many preferring montane, humid forests, while others thrive in lowland coastal areas and swamps. ...
... Additionally, the shape of the petals and lip, the latter with broad lateral lobes and cordate when expanded, is similar in both species. Nevertheless, P. cordilabia (see Toscano de Brito & Luer 2016) is restricted to the state of Espírito Santo. It has considerably longer inflorescences, up to 6.5 cm (vs. ...
A new species of Pabstiella native to the southeastern Brazilian Atlantic Rainforest is described and illustrated. The new species is compared with morphologically similar taxa, and its infrageneric placement is inferred based on morphology. In addition, six species are proposed as synonyms: P. dasilvae [= P. fragae], P. discors [=P. garayi], P. isabelae [=P. gossameri], P. melior [=P. brachystele], P. naimekei [=P. ezechiasi] and P. setibensis [=P. savioi]. Respective photographs and taxonomic discussions are provided for each case.
... Pabstiella is well supported by molecular evidence , Gutierrez Morales et al. 2021, Ponert et al. 2021. It contains nearly 140 species and is widely distributed in tropical and subtropical South America, and Panama and Costa Rica in Central America, with more than 90% of endemism in the Brazilian Atlantic Rainforest (Toscano de Brito & Luer 2016, Gutierrez Morales et al. 2021, Ponert et al. 2021. Several novelties in Pabstiella have appeared as poorly explored areas of the Atlantic Rainforest are visited by botanists and orchid collectors (e.g. ...
Pabstiella hileiaensis, a new species of Orchidaceae from southern Bahia in Brazil, is described and illustrated. The new species is similar to Pabstiella ezechiasi, but can be distinguished by the elliptical leaves, yellow flowers with red to brown veins, petals spatulate, slightly cucullate at the apex, the lip strongly papillose with erect lateral lobes and two, thin, submarginal, papillose, longitudinal calli. This morphology suggests Pabstiella hileiaensis is a member of the Pabstiella sect. Brevicaules. The specific epithet refers to the “Hiléia Baiana”, a megadiverse forest with high levels of endemism present in northern Espírito Santo and southern Bahia states. Digital plates are presented to show the natural intraspecific variation of this taxon.
Three new species of Pabstiella from Espírito Santo and Bahia in Brazil are described and illustrated, with digital plates, comparative figures, and annotations on their ecology provided. The species are compared with similar taxa, and their phylogenetic placement is hypothesized based on their morphology. In addition, five species are proposed as synonyms, P. teschiana and P. henrique-aragonii as synonyms of P. crenata, P. wanderbildtiana as synonym of P. aurantiaca, P. osculator as synonym of P. rhombilabia and P. menegattii as synonym of P. decurva. A respective taxonomic discussion is provided for each case, and a lectotype is selected for P. aurantiaca.
Resumo: Três espécies novas do Espírito Santo e da Bahia no Brasil são descritas e ilustradas, com pranchas digitais, figuras comparativas e anotações sobre sua ecologia fornecidas. As espécies são comparadas com táxons similares e seu posicionamento filogenético é hipotetizado com base em sua morfologia. Adicionalmente, cinco espécies são propostas como sinônimos: P. teschiana e P. henrique-aragonii como sinônimos de P. crenata, P. wanderbildtiana como sinônimo de P. aurantiaca, P. osculator como sinônimo de P. rhombilabia e P. menegattii como sinônimo de P. decurva. Para cada caso, é apresentada a discussão taxonômica respectiva. Um lectótipo é selecionado para P. aurantiaca.
Pabstiella consists of c. 130 epiphytic species in the Neotropics. We present a phylogenetic analysis based on nrITS, matK and trnH-psbA sequences from 59 species of the genus and 40 Pleurothallidinae and two Laeliinae and one Bletiinae as an outgroup, using maximum likelihood, Bayesian inference and maximum parsimony. We also performed molecular dating, biogeographical analyses and ancestral morphological character reconstruction. Our results confirm the monophyly of Pabstiella with strong support. Ten clades are inferred and are herein proposed as sections. Pabstiella originated in the Andes and the Atlantic Rainforest in the Late Miocene (c. 7.93 Mya) in an epoch when these biomes were probably connected. A main vicariance event divided an early-diverging lineage that inhabited the Andes from an Atlantic Rainforest lineage that diversified in this region during the Pliocene and Pleistocene, mainly in the Serra do Mar in south-eastern Brazil. Our findings also suggest that the Atlantic Rainforest may have played an important role in the origin of subtribe Pleurothallidinae. The morphological character reconstruction showed high levels of homoplasy, with few recognized synapomorphies associated with stems and petals. Other characters related to the habit and stems were identified as important in the evolutionary history of the genus.
The state of Espírito Santo holds an incredible diversity of Pabstiella species in Brazil, but many of them are poorly known. During field expeditions in private properties representing a fragment of Atlantic Rainforest in Santa Teresa municipality, we found a population of Pabstiella teschiana, a species only known from its type. The population was observed during one year to provide phenological and ecological data. Here we report this first record of the species in nature with details on its morphology, ecology and conservation. As our main contribution, we found some differences in both vegetative and reproductive structures in relation to the protologue and first described the fruits and seeds of the species. We also provide a brief discussion on the species conservation, emphasizing the potential role of the protected areas near the study area as suitable sites to the species occurrence.
In 2013, Caetano and colleagues published two lists of the Orchidaceae of the Municipality of Benedito Novo, Santa Catarina, totalling 99 species. Between January 2014 and September 2016, other field trips were made and new species were found in the region. Thus, in this paper an updated checklist of the Orchidaceae of Benedito Novo is presented based on herbarium collections and field surveys. A total of 184 species distributed in 66 genera are registered, comprising about 35% of the species and 60% of the genera cited for Santa Catarina. The richest genera are Acianthera Scheidw. (18 species), Pabstiella Brieger & Senghas (14), Epidendrum L., Gomesa R.Br., and Maxillaria Ruiz & Pav. (13 each). We also proposed a new combination and a lectotypification in the genus Pabstiella.
