Otatea nayeeri (Poaceae: Bambusoideae: Bambuseae: Guaduinae), a new species endemic to Nayarit, Mexico

Phytotaxa ◽  
2016 ◽  
Vol 267 (3) ◽  
pp. 211 ◽  
Author(s):  
EDUARDO RUIZ-SANCHEZ ◽  
ARTURO CASTRO-CASTRO
Keyword(s):  
New Species ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Number Of Species ◽  
Foliage Leaf ◽  
Vegetative Characters ◽  
A New Species

Otatea is the most diverse genus of Guaduinae in Mexico, with 10 described species mostly inhabiting tropical dry forest. Here, with the description of Otatea nayeeri, the number of species increases to 11. Morphologically, O. nayeeri is similar to O. reynosoana and O. transvolcanica but differs in having thin-papery and deciduous culm leaves, oral setae absent in culm leaves, developing erect and reflexed culm leaf blades, three subequal branches per node and smaller foliage leaf blades without fimbriae. A comparative table of vegetative characters, an illustration and photographs are also provided.

scholarly journals Bactrospora totonacae (Arthoniales, Ascomycota), a new species from Veracruz, Mexico

2021 ◽  
pp. e1900
Author(s):  
Jorge Guzmán-Guillermo ◽  
Paola L. Sorcia-Navarrete ◽  
Régulo C. Llarena-Hernández ◽  
Kevin Dorian R. Cárdenas-Mendoza
Keyword(s):  
New Species ◽  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Crustose Lichens ◽  
Layer Chromatography ◽  
A New Species

Background and Aims: Bactrospora is a genus of crustose lichens characterized by its black, verrucose to denticulate and little apothecia, and mostly acicular, or sometimes muriform spores, longer than wide. The genus is represented by 38 accepted species. The aim of this work is to describe Bactrospora totonacae, a new species from the tropical dry forest of Veracruz, Mexico. Methods: The specimens were collected on the “Cerro de los Metates” in the municipality of Actopan, Veracruz, Mexico. Macrochemical tests, UV reaction, and a thin layer chromatography were performed; likewise, the presence of amyloid substances distributed in the thallus and ascomata was verified with Lugol’s solution. The voucher is deposited in the herbarium XALU of the Facultad de Biología of the Universidad Veracruzana. Key results: The new species Bactrospora totonacae is characterized by the pruine K+ reddish magenta in its disc. Conclusions: The described species is unique in Bactrospora because the combination of pruine K+ reddish magenta and a thick carbonized exciple has never been reported in this genus.

A new species of the armored spider genus Caraimatta Lehtinen, 1981 from Colombia (Araneae: Synspermiata: Tetrablemmidae)

Zootaxa ◽  
2019 ◽  
Vol 4619 (1) ◽  
pp. 168-176
Author(s):  
ANDRÉS F. GARCÍA ◽  
LEONEL MARTÍNEZ ◽  
DANIELA AHUMADA-C
Keyword(s):  
New Species ◽  
Tropical Dry Forest ◽  
First Record ◽  
Identification Key ◽  
Dry Forest ◽  
Forest Fragments ◽  
Male And Female ◽  
Males And Females ◽  
A New Species

A new species of the armored spider genus Caraimatta Lehtinen, 1981 from Colombian Tropical dry forest fragments is described and illustrated: Caraimatta brescoviti sp. nov. (based on male and female) from Bolivar and Sucre departments, representing the first record of the genus from Colombia. Additionally, photographs of Monoblemma muchmorei Shear, 1978 (other tetrablemmid species previously recorded from the country) are given. A map with the known distribution and an identification key for males and females of the Caraimatta species are also included.  

scholarly journals El género Rhytidhysteron (Dothideomycetes, Ascomycota) en México

2020 ◽  
Author(s):  
Aurora Cobos Villagrán ◽  
César Hugo Hernández Rodríguez ◽  
Ricardo Valenzuela ◽  
Lourdes Villa-Tanaca ◽  
Rosa Paulina Calvillo-Medina ◽  
...  
Keyword(s):  
New Species ◽  
New Records ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Taxonomic Review ◽  
Species Taxonomy ◽  
A New Species ◽  
High Diversity

Resumen: Antecedentes y Objetivos: Actualmente, se reconocen 21 especies adscritas al género Rhytidhysteron. En México sólo se ha reportado Rhytidhysteron rufulum. El género se caracteriza por sus histerotecios naviculares a apoteciales, el borde es estriado o liso; los colores del epitecio varían de anaranjado-rojizo, amarillo, verde a negros y las ascosporas presentan tres septos longitudinales. El objetivo del presente estudio es realizar una revisión taxonómica del género Rhytidhysteron en México, basada en caracteres macro y micromorfológicos.Métodos: Se realizaron diez exploraciones entre 2017 y 2019 en diversas regiones de México. Además, se revisaron los especímenes depositados en la colección de hongos del herbario ENCB. Los ejemplares fueron estudiados, descritos y determinados de acuerdo con las técnicas tradicionales en micología. Resultados clave: Se revisaron 381 especímenes pertenecientes al género Rhytidhysteron, de los cuales se determinaron cuatro especies: Rhytidhysteron neohysterinum, una nueva especie para la ciencia, R. neorufulum y R. thailandicum que son nuevos registros para el país, y R. rufulum previamente citado.Conclusiones: El género Rhytidhysteron tiene una alta diversidad de especies en México. La mayoría de los especímenes se han encontrado sobre ramas en descomposición, principalmente en géneros de la familia Fabaceae en bosque tropical caducifolio, lo que podría sugerir que este grupo de plantas representa el microhábitat al que las especies de Rhytidhysteron se han adaptado.Palabras clave: distribución, histerotecio, Hysteriales, nueva especie, taxonomía. Abstract:  Background and Aims: Currently, 21 species associated with the genus Rhytidhysteron are recognized. In Mexico, only Rhytidhysteron rufulum has been reported. The genus is characterized by its navicular to apotecial histerothecia, the margin is striate or smooth; the colours of the epithecium vary from orange-reddish, yellow, green to black and its ascospores present three longitudinal septa. The objective of this study is to carry out a taxonomic review of the genus Rhytidhysteron in Mexico, based on macro- and micromorphological characters.Methods: Ten exploration trips were realized between 2017 to 2019 in several regions of Mexico. In addition, the specimens deposited in the fungus collection of the ENCB herbarium were reviewed. The specimens were studied, described and determined according to traditional mycological techniques.Key results: 381 specimens belonging to the genus Rhytidhysteron were reviewed, of which four species were determined: R. neohysterinum, a new species for science, R. neorufulum and R. thailandicum, new records for the country, and the previously cited R. rufulum.Conclusions: The genus Rhytidhysteron has a high diversity of species in Mexico. Most specimens have been found on decomposing branches, mainly of genera of the Fabaceae family in tropical dry forest, which suggest that this group of plants represent the microhabitat to which Rhytidhysteron species have best adapted.Key words: distribution, Hysteriales, hysterothecium, new species, taxonomy.

scholarly journals Hymenochaete liliae (Agaricomycetes, Fungi), a new species from the state of Oaxaca, Mexico

2021 ◽  
Author(s):  
Magdalena Contreras Pacheco ◽  
Tania Raymundo ◽  
Leticia Pacheco ◽  
Silvia Bautista-Hernández ◽  
Ricardo Valenzuela
Keyword(s):  
New Species ◽  
Tropical Dry Forest ◽  
Optical Microscope ◽  
The State ◽  
Dry Forest ◽  
Fresh Material ◽  
The Family ◽  
Thin Walled ◽  
A New Species

Background and Aims: Hymenochaete is the genus with the highest number of species of the family Hymenochaetaceae in Mexico; 25 species have been described. It is characterized by its mainly resupinate basidiome, although it may be pileate and stipitate, of brown colors, with presence of setae and xanthocroid reaction. The objective of this study is to describe a new species of Hymenochaete.Methods: The fresh material was studied and described macro and micromorphologically, using a stereoscopic and optical microscope, taking photos in situ. Vouchers of the herbaria ENCB y FCME were studied, and specialized literature was reviewed for its description.Key results: Hymenochaete liliae sp. nov. is characterized by a resupinate, adnate, fleshy basidiome, smooth hymenophore, with numerous setae, determinate margin, abrupt, with monomitic hyphal system, simple septae; abundant subfusiform setae in the hymenium, 69-80 × 6-8 µm, acute, with crystals; and ellipsoid basidiospores, thin-walled, 5-8 × 2-3 µm. Although it resembles H. rhabarbarina, it can be differentiated by setae covered with crystals and spores of 4.8-6 × 2.3-3.3 µm. It could also be confused with H. minuscula due to its basidiome color; however, the setae are smaller (40-60 µm), as well as the basidia (15-20 µm). It can be separated from H. cinnamomea because it does not present a stratose basidiome; setae with crystals, 69-80 × 6-8 µm; basidiospores 5-8 × 2-3 µm, ellipsoidal.Conclusions: Hymenochaete liliae is proposed as a new species, which is distributed in the tropical dry forest of the state of Oaxaca, and until now only reported from the type locality.

A new species of Capparidastrum (Capparaceae Juss.) from the Cauca inter Andean valley of Colombia

Phytotaxa ◽  
2020 ◽  
Vol 439 (3) ◽  
pp. 276-286
Author(s):  
JORGE D. MERCADO-GÓMEZ ◽  
MARÍA EUGENIA MORALES-PUENTES
Keyword(s):  
New Species ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Forest Fragments ◽  
Santa Fe ◽  
Biogeographic Province ◽  
A New Species

We describe and illustrate a new species of Capparidastrum subgen. Pulviniglans (Capparaceae). Capparidastrum dugandii occurs in tropical dry forest fragments of the Colombian inter-Andean valley of the Dagua River, near the municipality of Santa Fe de Antioquia. Capparidastrum dugandii is distinguished from other species of subgen. Pulviniglans molecularly and by the lowest number of stamens (18–20). In addition, the species is endemic to the Cauca biogeographic province.

scholarly journals Geastrum chamelense (Geastraceae, Agaricomycetes), a new species with setose endoperidium from the tropical dry forest in Jalisco, Mexico

2021 ◽  
Author(s):  
Silvia Bautista-Hernández ◽  
Tania Raymundo ◽  
Elvira Aguirre-Acosta ◽  
César Ramiro Martínez-González Martínez-González ◽  
Ricardo Valenzuela
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Tropical Dry Forest ◽  
Molecular Data ◽  
Dry Forest ◽  
Type Material ◽  
Biological Station ◽  
Phylogenetic Perspective ◽  
A New Species

Background and Aims: Geastrum is characterized by stelliform basidiomata, exoperidium with three layers, sessile or stalked endoperidium, and sulcate, plicate, folded or fibrillose peristome, distinctly or indistinctly delimited, sometimes with mycosclereids. The objective of this study is to describe and illustrate Geastrum chamelense with morphological, ecological and molecular data as a new species from the Chamela Biological Station, Jalisco, Mexico. Methods: Basidiomata collections with different degrees of maturity gathered in 2010 and 2011 from tropical dry forest at the Chamela Biological Station in Jalisco state are described macro- and microscopically. The type material is deposited in the fungal collections of the herbaria ENCB and MEXU. The extraction of DNA, as well as the phylogenetic analyses of ITS, LSU, atp6 and rpb1 sequences, are based on the holotype. Key results: Geastrum chamelense is distinguished by its greyish brown basidiomata, pseudofornicate, fleshy exoperidium, not hygroscopic, sessile endoperidium, subglobose to depressed with peristome plicate, not delimited, and setae present. The latter character is shared with Geastrum setiferum from Brazil, but that species has shorter and wider setae (95-215 × 20-47 µm) than G. chamelense (102-330 × 10.2-15.3 µm). From a phylogenetic perspective, G. chamelense is sister to G. hieronymi and G. cf. calceum, while G. setiferum is not related, as it appears in a separate clade. Conclusions: Geastrum chamelense is recognized as a new species based on morphological, ecological and molecular data.

Agave garciaruizii (Asparagaceae) a new species from the Chorros del Varal State Reserve in western Mexico

Phytotaxa ◽  
2019 ◽  
Vol 422 (3) ◽  
pp. 273-288
Author(s):  
GERARDO HERNÁNDEZ-VERA ◽  
J. ANTONIO VÁZQUEZ-GARCÍA ◽  
JESÚS PADILLA-LEPE ◽  
GREGORIO NIEVES-HERNÁNDEZ
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Tropical Dry Forest ◽  
Species Group ◽  
Dry Forest ◽  
Morphological Evidence ◽  
Closely Related Species ◽  
Western Mexico ◽  
Southern Border ◽  
A New Species

A new species named Agave garciaruizii is described and illustrated here. A. garciaruizii is endemic to tropical dry forest in the Itzícuaro and Apupátaro river canyons in the Chorros del Varal State Reserve, at the southern border of the states of Jalisco and Michoacán, México. It belongs to the subgenus Littaea and to the Marginatae species group and is morphologically related to A. angustiarum and A. impressa, but differs from these species in some features of leaves, inflorescences and infructescences. Its conservation status was assessed as Endangered (EN). Additionally, morphological evidence was provided in support of A. arcedianoensis as a species distinct from A. angustiarum. A key to morphologically and geographically closely related species in the Marginatae group is presented.

Nonmarine ostracods (Crustacea) from South Korea, including a description of a new species of Tanycypris Triebel (Cyprididae, Cypricercinae)

Zootaxa ◽  
2012 ◽  
Vol 3161 (1) ◽  
pp. 1 ◽  
Author(s):  
CHEON YOUNG CHANG ◽  
JIMIN LEE ◽  
ROBIN J. SMITH
Keyword(s):  
New Species ◽  
South Korea ◽  
Small Proportion ◽  
Korean Peninsula ◽  
New Records ◽  
Actual Number ◽  
Additional Species ◽  
Number Of Species ◽  
Freshwater Habitats ◽  
A New Species

Preliminary surveys of brackish and freshwater habitats in the southeast and east of South Korea produced a total of fifteenspecies. Ten of these species are new records for Korea, and one additional species, belonging to the genus Tanycypris, isnewly described herein. Twenty-seven species of nonmarine ostracods are now reported from Korea, but this is probablyonly a small proportion of the actual number of species inhabiting the peninsula. The presence of Dolerocypris ikeyaiSmith & Kamiya, 2006, Cryptocandona brehmi (Klie, 1934), Cryptocandona tsukagoshii Smith, 2011, Physocypria nip-ponica Okubo, 1990 and Vestalenula cylindrica (Straub, 1952) on the Korean Peninsula demonstrates that these species are also distributed on the continent, and are not endemic to Japan.

scholarly journals A new species of Symbra (Hymenoptera, Eurytomidae, Heimbrinae) from dry forest in Brazil and new occurrence records for other Heimbrinae

2012 ◽  
Vol 56 (4) ◽  
pp. 415-418
Author(s):  
Daniell Rodrigo Rodrigues Fernandes ◽  
Rogéria Inês Rosa Lara ◽  
Nelson Wanderley Perioto
Keyword(s):  
New Species ◽  
Dry Forest ◽  
A New Species ◽  
Occurrence Records
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