Topic
Lygodium
About: Lygodium is a research topic. Over the lifetime, 89 publications have been published within this topic receiving 1408 citations. The topic is also known as: Hagnaya.
Papers published on a yearly basis
Papers
More filters
TL;DR: A new species of the fern genus Lygodium has been described in detail with photographs and illustrations from Saddle Peak in the North Andamans, India.
Abstract: A new species of the fern genus Lygodium has been described in detail with photographs and illustrations from Saddle Peak in the North Andamans, India.
1 citations
1 citations
01 Jun 2021
TL;DR: In this article, the Lygodium collection at the University of Indonesia (RKB UI) was revitalized with three steps of workflows: re-examining all taxonomical properties (taxonomic validation), repairing herbarium sheets, and digitizing all specimens.
Abstract: Herbarium specimens play an extra role nowadays. Aside from its traditional taxonomical function, they are also an important data source for ecology, ethnobotany, mapping, and biogeography studies. In modern herbarium management, the specimens have been made more accessible to society through the digitizing process so that all specimens act as learning media. The University of Indonesia collection room or Ruang Koleksi Biota Universitas Indonesia (RKB UI) harbor spirit collections, carpology, and dried herbarium specimens collected from various student activities in botanical studies. In this study, Lygodium collection in RKB UI is revitalized. This study aims to revitalize all specimens with three steps of workflows, (1) Re-examining all taxonomical properties (taxonomic validation), (2) repairing herbarium sheets, and (3) digitizing all specimens (documentation and databasing). All 86 specimens recorded as Lygodium flexuosum, Lygodium scandens, Lygodium circinnatum, Lygodium microphyllum, Lygodium sp., and unidentified specimens were successfully reidentified into 3 species Lygodium flexuosum (L) Sw., Lygodium microphyllum (Cav.) R.Br., Lygodium circinnatum (Burm. F) Sw. Validation resulted in the moving of 80 specimens formerly placed in Schizaeaceae into Lygodiaceae, while 6 remaining specimens did not receive any validation treatment. All but one specimen has been improved into a representative specimen (one specimen already in good condition). Digitizing was done by documenting each photographed specimen, recording all taxonomical data in a worksheet, and storing both documents as a database on the RKB UI website.
TL;DR: Two species of subtriangular, trilete spores assigned to a new form genus, Acritosporites, occur in Cenomanian and Turonian sandstones and silty clays of central U.S. as mentioned in this paper.
Abstract: Two species of subtriangular, trilete spores assigned to a new form genus, Acritosporites, occur in Cenomanian and Turonian sandstones and silty clays of central U. S. S. R. Three proximal, interradial, oval "lacunae" and one distal, circular "lacuna" characterize the genus. The author, in disagreement with Bolkhovitina, prefers not to ally A. sibiricus (Bolkh.) comb. nov. with Lygodium. — D. C. McGregor.
01 Jan 2019
TL;DR: The morphology, epidermal features and details of the conducting tissues are described for Lygodium sterile pinnules from the oil-bearing middle Paleocene strata of the Sanshui Basin, Guangdong Province, South China as mentioned in this paper.
Abstract: The morphology, epidermal features and details of the conducting tissues are described for Lygodium sterile pinnules from the oil-bearing middle Paleocene strata of the Sanshui Basin, Guangdong Province, South China. A new species, Lygodium sanshuiense n. sp., is erected on the basis of being petiolulate, with palmately-lobed sterile pinnules that are often strongly dissected and have acute to acuminate apices. Lygodium is typically associated with mesic floras and its presence in the Buxin palaeoflora suggests the overall regional palaeoclimate was subtropical and humid during the middle Paleocene.