Works in North America
Published research works with metadata for North America (Continent).
1165 works
Showing 751 to 800 of 1165 works
Licaria ramiroi (Lauraceae), a new species from Western Mexico
Licaria ramiroi, a species endemic to western Mexico, is described and illustrated. The ascription of the new species to Licaria is analysed. It is classified in the subgen. Licar…
Vascular plant biodiversity of Katannilik Territorial Park, Kimmirut and vicinity on Baffin Island, Nunavut, Canada: a…
The Arctic ecozone is undergoing a rapid transformation in response to climate change. Establishing a baseline of current Arctic biodiversity is necessary to be able to track chan…
A new species of Encelia (Compositae, Heliantheae, Enceliinae) from the southern Baja California Peninsula
Here, we describe and illustrate Encelia balandra sp. nov., a new species of Compositae from the Baja California Peninsula. It is rare and known only from the rocky hills around P…
Plagiothecium talbotii, a new species from the Aleutian Islands (Alaska, U.S.A.)
Plagiothecium talbotii sp. nov. is described from Attu Island, Alaska, U.S.A. The newly-described species is not similar in appearance to any Northern Hemisphere species; only the…
Townsendia lemhiensis (Asteraceae, Astereae): A narrowly endemic new species from Idaho, USA
Townsendia lemhiensis (Asteraceae) is described from the Lemhi Valley of east-central Idaho. From a genus with weak intrinsic isolating barriers, T. lemhiensis remains distinct ap…
Pitcairnia abscondita (Pitcairnioideae, Bromeliaceae), a hidden novelty from north-western Jalisco, Mexico
Pitcairnia abscondita sp. nov., known until now only from the Municipalities of Cabo Corrientes, Mascota, Puerto Vallarta, San Sebastián del Oeste and Talpa de Allende in the Stat…
On a noteworthy habitat type in the savannahs of Central Cuba and a remarkable new species of Elytraria (Acanthaceae)
A peculiar habitat type found in the savannahs of Central Cuba, Villa Clara Province and characterised by the presence of a surface gravel layer of “perdigones”, an assemblage of …
Taxonomic revision of Martinella Baill. (Bignonieae, Bignoniaceae)
Martinella Baill. is a genus of Neotropical lianas in tribe Bignonieae (Bignoniaceae). The genus is monophyletic and well supported by morphological and molecular characters. Memb…
On Hydrangea peruviana, an endangered species from Ecuador, and Hydrangea oerstedii, very common in Costa Rica and Pana…
Hydrangea section Cornidia, currently consisting of 19 accepted taxa, occurs from Mexico to Chile and Argentina, with one species in southeast Asia. Its representatives are root-c…
Taxonomic updates in Amphitecna (Bignoniaceae): A new Mexican species and the re-establishment of the giant-leaved A. m…
In this study, we analyzed the morphological affinities of the 24 species of Amphitecna based on detailed morphological studies and multivariate cluster analyses. Our results sugg…
The genus Lycianthes (Solanaceae, Capsiceae) in Mexico and Guatemala
Lycianthes, the third most species-rich genus in the Solanaceae, is distributed in both the New and Old Worlds and is especially diverse in Mexico. Here we provide an identificati…
Octoblepharum peristomiruptum (Octoblepharaceae) a new species from the Neotropics
Octoblepharum peristomiruptum, a new species of moss in the family Octoblepharaceae from Panama and Brazil, is described and illustrated. The new species is characterised by plant…
Agrostis and Podagrostis (Agrostidinae, Poaceae) from páramos of Boyacá, Colombia: synoptic taxonomy including a key to…
We present taxonomic notes, including updated species descriptions and images, for the nine species of Agrostis and one species of Podagrostis found in páramos of Departamento Boy…
New combinations and updated descriptions in Podagrostis (Agrostidinae, Poaceae) from the Neotropics and Mexico
Based on morphological study and corroborated by unpublished molecular phylogenetic analyses, five grass species of high-mountain grasslands in Mexico, Central and South America, …
Nomenclatural changes in Onagraceae
A new subspecies and two new combinations are proposed in Onagraceae. Ludwigia glandulosa Walter subsp. brachycarpa C.-I Peng, subsp. nov. is morphologically distinct from the typ…
Vascular plants of Victoria Island (Northwest Territories and Nunavut, Canada): a specimen-based study of an Arctic flo…
Victoria Island in Canada’s western Arctic is the eighth largest island in the world and the second largest in Canada. Here, we report the results of a floristic study of vascular…
Eriocoma valdesii, a new species from México (Poaceae, Stipeae)
Eriocoma valdesii sp. nov., is described and illustrated. The new species was found growing on calcareous rocky slopes and hillsides between 1700–2721 m in Coahuila, Nuevo León, S…
Novelties in the genus Viridantha Espejo (Tillandsioideae, Bromeliaceae)
Based on morphological evidence, we propose to raise Tillandsia mauryana forma secundifolia to species level with the name Viridantha secundifolia (Ehlers) Hern.-Cárdenas, Espejo …
The rise of Cynometra (Leguminosae) and the fall of Maniltoa: a generic re-circumscription and the addition of 4 new sp…
Cynometra L. is a genus of ca. 85 species of shrubs to large trees. It is amongst the largest genera in the legume subfamily Detarioideae and one of the few with a pantropical dis…
A key to the North American genera of Stipeae (Poaceae, Pooideae) with descriptions and taxonomic names for species of …
Based on earlier molecular DNA studies we recognize 14 native Stipeae genera and one intergeneric hybrid in North America. We provide descriptions, new combinations, and 10 illust…
Twelve new and exciting Annonaceae from the Neotropics
As a result of concerted efforts of the community of Annonaceae taxonomists, increasingly detailed knowledge of the diversity of the Neotropical genera has been documented. With t…
Evolutionary relationships and taxonomy of Microtea (Microteaceae), a basal lineage in the core Caryophyllales
The basal position of the small American genus Microtea within the core Caryophyllales was suggested only recently in accordance with molecular phylogeny. However, the specific re…
New species of Paullinia (Sapindaceae) from continental tropical America
Six new species are described in the large Neotropical genus Paullinia (Sapindaceae), P. cidii, P. decorticans, P. fruticosa, P. hondurensis; P. martinellii and P. wurdackii. In a…
Diatoms from Wrangell-St. Elias National Park, Alaska, USA
As a contribution to our knowledge of diatom biodiversity and biogeography in the United States, high resolution light microscope images are provided for 139 diatom taxa recorded …
A taxonomic revision of the Neotropical genus Cremastosperma (Annonaceae), including five new species
We present a taxonomic revision of Cremastosperma, a genus of Neotropical Annonaceae occurring in lowland to premontane wet forest, mostly in areas surrounding the Andean mountain…
Atlas of diatoms (Bacillariophyta) from diverse habitats in remote regions of western Canada
High-resolution LM images of diatoms from remote regions of western Canada are presented as a contribution to our knowledge of diatom floristics, ecology and biogeography in North…
Phylogeny of Muhlenbergia subg. Pseudosporobolus, including M. spatha (Poaceae, Chloridoideae, Cynodonteae, Muhlenbergi…
Muhlenbergia spatha, previously known only from near the type locality in San Luis Potosí, is reported from two localities in Zacatecas, Mexico. Historically, botanists have overl…
A taxonomic revision of Curarea Barneby & Krukoff (Menispermaceae)
A monograph of Curarea, a neotropical genus in the plant family Menispermaceae, is presented. Curarea is distinguished from related genera by the combination of staminate flowers …
Chiococca grandiflora (Rubiaceae), a new species from Northern Mexico
The new species Chiococca grandiflora Lorence & T.Van Devender from Sinaloa and Sonora, Mexico differs from its congeners by its larger, showy white flowers in compact cymes of 3–…
Floristic affinities of the lowland savannahs of Belize and southern Mexico
Environmental heterogeneity of Belize and southern Mexico savannahs as well as their geographical location suggest that these plant communities share floristic elements, making th…
A revision of the genus Protorthodes McDunnough with descriptions of a new genus and four new species (Lepidoptera, Noc…
The genus Protorthodes McDunnough is revised to include 15 species including P. ustulata Lafontaine, Walsh & Ferris, sp. n., from southwestern United States, P. texicana Lafontain…
Taxonomy and biogeography of the Nearctic Raphia Hübner (Lepidoptera, Noctuidae, Raphiinae)
The taxonomic status and biogeography of the North American Raphia species is reviewed using adult morphology, larval host plants, geographic phenotypic variation, and variation o…
The Disphragis notabilis (Schaus) species-group in Costa Rica (Lepidoptera, Notodontidae)
The four described taxa in the Disphragis notabilis (Schaus) species-group are reviewed, including the types and their dissected genitalia. Disphragis hemicera (Schaus), stat. rev…
The Phyllodonta latrata (Guenée) species group in Costa Rica (Geometridae, Ennominae)
Historically, the name Phyllodonta latrata (Guenée) has been applied to what is a complex of three undescribed species in Costa Rica. They are very similar in maculation, but can …
A review of Cunaxidae (Acariformes, Trombidiformes): Histories and diagnoses of subfamilies and genera, keys to world s…
Cunaxidae are predaceous mites found in a variety of habitats. This work provides comprehensive keys to world subfamilies, genera, and species. Diagnoses and historical reviews ar…
Diversity and altitudinal distribution of Chrysomelidae (Coleoptera) in Peregrina Canyon, Tamaulipas, Mexico
The Chrysomelidae (Coleoptera) is a highly speciose family that has been poorly studied at the regional level in Mexico. In the present study, we estimated species richness and di…
Taxonomic review of Cratocerus Dejean, 1829 (Coleoptera, Carabidae) with description of six new species
A diagnosis of the South and Central American genus Cratocerus Dejean (Coleoptera: Carabidae) and a key to all species is provided. Eight species are recognized including six spec…
First record of the mygalomorph spider family Paratropididae (Arachnida, Araneae) in North America with the description…
A new species of the genus Paratropis is described from North America: Paratropis tuxtlensis sp. n., from a tropical rainforest in Veracruz, Mexico. This is the fifth Paratropis a…
Larvae and pupae of two North American darkling beetles (Coleoptera, Tenebrionidae, Stenochiinae), Glyptotus cribratus …
This study describes and illustrates the larvae and pupae of two North American darkling beetles (Coleoptera: Tenebrionidae) in the subfamily Stenochiinae, Glyptotus cribratus LeC…
An unusual suite of sexual characters in three new species of Hymenorus (Coleoptera, Tenebrionidae, Alleculinae) from G…
Two species, Hymenorus bifurcatus, and H. excavatus are described as new from Guatemala and the new species H. balli from both the state of Chiapas in southern Mexico and Guatemal…
New species and records of Charisius Champion from Mexico and Central America (Coleoptera, Tenebrionidae, Alleculinae)
The species of the genus Charisius Champion, from Mexico and Central America are reviewed. The flightless genus Narses Champion, with one included species, N. subalatus Champion, …
Larvae of the genus Eleodes (Coleoptera, Tenebrionidae): matrix-based descriptions, cladistic analysis, and key to late…
Darkling beetle larvae (Coleoptera, Tenebrionidae) are collectively referred to as false wireworms. Larvae from several species in the genus Eleodes are considered to be agricultu…
Review of the species of Paratenetus Spinola inhabiting America, north of Mexico (Coleoptera, Tenebrionidae)
The North American (north of Mexico) species of the tenebrionid genus Paratenetus Spinola are reviewed and a key is presented for their identification. Five species are recognized…
A new species of the genus Diplocentrus Peters, 1861 (Scorpiones, Diplocentridae) from Oaxaca, Mexico
A new species of the genus Diplocentrus Peters, 1861 is described, based on several specimens collected in the Mexican state of Oaxaca. It is characterized by a high telotarsal sp…
The Hoosier cavefish, a new and endangered species (Amblyopsidae, Amblyopsis) from the caves of southern Indiana
We describe a new species of amblyopsid cavefish (Percopsiformes: Amblyopsidae) in the genus Amblyopsis from subterranean habitats of southern Indiana, USA. The Hoosier Cavefish, …
Review of Canadian species of the genera Gnathusa Fenyes, Mniusa Mulsant & Rey and Ocyusa Kraatz (Coleoptera, Staphylin…
Four species of Gnathusa Fenyes (G. alfacaribou Klimaszewski & Langor, G. caribou Lohse, G. eva Fenyes, and G. tenuicornis Fenyes) occur in the Nearctic and in Canada. Three speci…
A new Liopropoma sea bass (Serranidae, Epinephelinae, Liopropomini) from deep reefs off Curaçao, southern Caribbean, wi…
Collecting reef-fish specimens using a manned submersible diving to 300 m off Curaçao, southern Caribbean, is resulting in the discovery of numerous new fish species. The new Liop…
Supplement to the revision of the genus Eremosaprinus Ross, 1939 (Coleoptera, Histeridae, Saprininae): new distribution…
A new species of the genus Eremosaprinus Ross, 1939, E. warneri, is described from southeastern Arizona, USA, and incorporated into the identification key for the genus. Descripti…
Ophiuroidea (Echinodermata) from coral reefs in the Mexican Pacific
There are numerous and important coral reefs in the Mexican Pacific, but scarce studies of brittle stars conducted in these ecosystems. In this regard, this work provides the firs…
Two new species of yellow-shouldered bats, genus Sturnira Gray, 1842 (Chiroptera, Phyllostomidae) from Costa Rica, Pana…
Two new species of yellow-shouldered bats Sturnira Gray, 1842 (Chiroptera, Phyllostomidae) from Central America and western South America are described using molecular and morphol…