The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The monospecific fern genus Nephopteris is restricted to four páramos in Colombia. Until now, its phylogenetic relationships have not been clarified, although morphological traits suggest that it belongs to the taenitidoid clade of the subfamily Pteridoideae in the Pteridaceae. We isolated four chloroplast (atpA, chlL, rbcL, and rps4) loci of N. maxonii and performed maximum parsimony and maximum...
Keys, full synonymy, descriptions, specimens examined, and illustrations are provided for the fern genus Polystichopsis. The genus occurs in the West Indies, with disjunct populations in Nicaragua and Isla Margarita, Venezuela. Seven species and one hybrid are recognized. The genus can be distinguished from other dryopteroid genera by the combination of creeping rhizomes, distichous leaves, lack of...
Three new species of Psammisia s.l. (Ericaceae: Vaccinieae) endemic to Colombia have been identified from collections of the Colombian Western Cordillera. They are Psammisia mateoi, Psammisia longirachis, and Psammisia glandulolaminata. Here the new species are described, discussed, and illustrated through line drawings and photographs of living plants.
Two new species of Gentianella, G. quechuana and G. longisepala, are described from the high Andes of Cochabamba, Bolivia. The first new species is characterized by the presence of trichomes inside the corolla tube, 5-veined leaves with papillose margins, pedicels 1–4 cm long, and corolla 2.1–3.5 cm long. These characters distinguish G. quechuana from the most similar species Gentianella kuntzei,...
Tovomita megantha, a new species presumably endemic to submontane Atlantic Forest in southern Bahia, Brazil is described, illustrated, and its diagnostic features compared to those of similar species. The new species belongs to the informal group Chrysochlamydifoliae. It differs from Tovomita choisyana and Tovomita longifolia by having much larger pedicels, flower buds, and floral diameters...
In 1901 N. L. Britton described Senecio crawfordii, a wetland species of southeastern North America. Although accepted as a species during the first half of the twentieth century, the taxon was treated as a variety of the species now known as Packera paupercula, or Britton’s binomial was reduced to synonymy under that species. However, the taxon’s morphological and ecological distinctness argued for...
The four new species described here occur in the Brazilian state of Bahia. Dichorisandra marantoides can be distinguished from other species of the genus by its chartaceous longitudinally ribbed leaves, flowers with five stamens and anthers opening introrsely by slits (being functionally poricidal). Dichorisandra bahiensis is similar to D. tejucensis due to the habit and leaf and flower morphology...
We describe two new species of Pleroma (Melastomataceae) from the state of Espírito Santo, Brazil. Pleroma fragae can be recognized by the combination of glabrous styles and both cycles of stamens that have glandulose connectives. This species also has an arboreal habit, hypanthium and sepals that are hispid-strigose and eglandulose, and subisomorphic stamens, with filaments that have glandular trichomes...
To assess the taxonomic utility of cytogenetic variation in the species-rich neotropical papilionoid legume genus Swartzia and to ascertain the importance of cytogenetic evolution in the diversification history of the genus, a variety of cytogenetic data—chromosome number, chromosome lengths, relative chromosome length, total chromatin length (TCL), CMA/DAPI and FISH—were collected for 19 taxa of...
Desmopsis guerrerensis, a new species endemic to Guerrero, Mexico is described and illustrated. The new species is related to Desmopsis verrucipes, endemic to Costa Rica, but it differs in several morphological characters and geographical distribution. A key to the species of Desmopsis of Mexico and Central America that have persistent sepals in fruit is presented.
Primary hemiepiphytism was documented in Pleopeltis bradeorum (Polypodiaceae) at the La Selva Biological Station, Heredia, Costa Rica. Multiple sporophytes and gametophytes were observed, photographed, and collected. Gametophytes were found on the trunks of trees and lianas within 2.5 m of the ground. Mature sporophytes with fertile fronds were observed growing ca. 2.5 m above the ground with feeder...
Harriman and Bear Mountain State Parks, New York, contain a rich and previously under-documented algal flora. We report 382 algal taxa (excluding diatoms), including 294 taxa not previously reported from the parks. Our inventory suggests that the algal flora has changed significantly since it was last studied in 1918 with a general increase in the number of desmid taxa (Zygnematophyceae) and changes...
. Dendropanax fluminensis, a new species of Araliaceae from the Atlantic Forest of Rio de Janeiro state, Brazil, is here described and illustrated. It is compared with morphologically similar species from the Brazilian Atlantic Forest, especially D. monogynus, from which it can be distinguished by the inflorescences with 2–5 secondary axes, shorter pedicels in flower and in fruit, and 3-...
Although several proposals for an infrageneric classification of Epidendrum have been proposed, none is congruent with the most recent molecular analysis. One of the known informal groups proposed in the genus, the “Arbuscula group,” is characterized by an upright sympodial habit in which successive new stems emerge internodally from the leaf sheath and a few (2–4) leaves are aggregated at the apex...
Podostemaceae occupy river rapids and waterfalls, where they attach to rocks in turbulent currents. All vegetative structures (roots, stems, leaves) are usually green and presumably photosynthetic, and highly variable in form among taxa. Here is reported the results of a study of a species of neotropical Castelnavia (C. noveloi). Published reports of the lack of roots in the species, as well as the...
Taxonomic data are essential in many fields of biology. However, the production of taxonomic treatments is usually very time consuming and few programs are available for taxonomic use. The R-based package monographaR automates the production of some ubiquitous components of plant taxonomic studies, generating a monograph skeleton and figures for publication. The package includes functions to convert...
Megastigma morenoi is described and illustrated. We discuss its relationships to other species of the genus and provide information on its distribution and ecology and a key to separate it from the other species of the genus.
Seven new species of Dacryodes (D. amplectans, D. connata, D. epimedia, D. frangens, D. hydrifolia, D. maguipensis, and D. tumacensis) are described and illustrated, bringing the total number of species occurring in Colombia to 28 (nine of them still undescribed). Eleven of these are restricted to the Chocó flora sensu lato, making that a center of diversity for the genus. One of the new taxa, D. connata...
This is the first Neotropical record of fossils of Thelypteris subg. Meniscium from Miocene rocks located in west-central Colombia. The fossils were preserved in lodolites and tuffaceous arenites rich in angiosperm fossils. Due to the absence of important morphological characters, the affinity to extant species is unknown. From the ecology, the Neotropical distribution of the related species and the...
In March and April 1948, David Fairchild undertook a plant hunting expedition to Venezuela and Colombia. His wife, Marian, accompanied him on this, his last official plant exploration endeavor. A total of 62 plant samples (41 from Venezuela and 21 from Colombia) were collected. In addition, 55 photographs (41 from Venezuela and 14 from Colombia) were taken during this trip. A review of the objectives...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.