Results 211 to 220 of about 7,115 (254)

Phylogenomics of Paragymnopteris (Cheilanthoideae, Pteridaceae): Insights from plastome, mitochondrial, and nuclear datasets.

Molecular Phylogenetics and Evolution
Previous studies have shown that at least six genera of the Cheilanthoideae, a subfamily of the fern family Pteridaceae, may not be monophyletic. In these non-monophyletic genera, the Old-World genus Paragymnopteris including approximately five species ...
Jing Zhao, Zhen‐Long Liang, Shao-Li Fang, Rong-Juan Li, Chuan-Jie Huang, Libing Zhang, Tanner A. Robison, Zhang-Ming Zhu, Wenteng CaI, Hong Yu, Zhao-Rong He, Xin‐Mao Zhou   +11 more
semanticscholar   +1 more source

SEM and LM insights: Spore morphology and its taxonomic significance in Sino Himalayan, Malesian, and European elements of Pteridaceae

Microscopy research and technique (Print)
The Pteridaceae family, known for its taxonomic complexity, presents challenges in identification due to high variability among its species. This study investigates the spore morphology employing both SEM and LM techniques in 10 Pteridaceae taxa ...
S. N. Shah, S. Ercişli, Akhtar Zaman, I. Din, Fahim Ullah Khan, Muhammad Nauman Khan, Majid Iqbal, B. Ali, M. Okla   +8 more
semanticscholar   +1 more source

The identity of Coniogramme wilsonii (Pteridaceae)

Phytotaxa, 2018
Most of Chinese specimens identified as Coniogramme wilsonii were actually C. fauriei. Based on field observation on C. sinensis around the type locality, type examination, and a review of the literature, C. sinensis is proposed as a synonym of C. wilsonii.
Zhao, Junwen, Yang, Wenli, Wang, Caihong, Zhang, Gangmin   +3 more
openaire   +2 more sources

FAMILIA PTERIDACEAE

Flora del Bajío y de Regiones Adyacentes, 2019
La familia Pteridaceae es una de las más diversas de helechos, contiene entre 44 y 53 géneros y entre 950 y 1211 especies en el mundo. En México está representada por 32 géneros y alrededor de 218 especies. En la región de estudio se registran 16 géneros y 88 especies.
openaire   +1 more source

Haplopteris palustris, a New Terrestrial Vittarioid Fern (Pteridaceae; Polypodiales) from Western Malesia

Systematic Botany
A new vittarioid fern species, Haplopteris palustris, is here described from the swamp forests in western Malesia based on both morphological and molecular phylogenetic evidence.
Cheng-Wei Chen, Daniele Cicuzza, S. Lindsay, R. Sukri, Y. Chao, Yao-Moan Huang, Kuo-Fang Chung   +6 more
semanticscholar   +1 more source

Plagiogyria longipinnata (Plagiogyriaceae) is a synonym of Pteris rangiferina (Pteridaceae)

Phytotaxa
N ...
SHI-YONG Dong, LI-CHENG Liu, ZHENG-YU Zuo   +2 more
semanticscholar   +1 more source

The occurrence and morphology of Adiantum × variopinnatum (Pteridaceae)

Brittonia, 2002
Abstract Two populations of Adiantum × variopinnatum were found at the La Selva Biological Field Station in Costa Rica. The plants were morphologically intermediate between their parents, showed additive isozyme banding patterns, and had aborted spores. Herbarium searches for the hybrid turned up specimens from Nicaragua, Costa Rica, Panama, Venezuela,
Robbin C. Moran, James E. Watkins
openaire   +1 more source

Some New Names and Combinations in Pteridaceae

American Fern Journal, 1986
Although Pteridaceae Reichb. f. has been considered to be an illegitimate name (Pichi Sermolli, 1982), Article 63.3 of the International Code of Botanical Nomenclature was altered at Sydney and the name is consequently legitimate. It may, however, be antedated by Pteridaceae Gaud. or Pteridaceae (S. F. Gray) Gaud.
openaire   +1 more source

The Pteris aspericaulis complex in India (Pteridaceae)

Phytotaxa, 2019
The Pteris aspericaulis complex is widely distributed in Himalayan regions and extends to East Asia. Due to tremendous morphological variation within and between taxa, previous taxonomic treatments have been plagued with an element of uncertainty. In this study, morphological characteristics are used to clarify and delineate each taxon. Six species are
openaire   +2 more sources

Pteridaceae

1982
Rolla M. Tryon, Alice F. Tryon
openaire   +1 more source