scholarly journals Spikemoss flora (Selaginella) in Mindanao Island, the Philippines: species composition and phenetic analysis of morphological variations

2018 ◽  
Vol 12 (1) ◽  
Keyword(s):  
Species Richness ◽  
New Species ◽  
Species Composition ◽  
Morphological Characteristics ◽  
Morphological Characters ◽  
The Philippines ◽  
Phenetic Analysis ◽  
Morphological Variations ◽  
Diverse Species ◽  
Phenetic Relationships

The genus Selaginella, commonly referred to as spikemosses, is an important component of the Philippines’ lycophytes diversity. Mountain ecosystems in Mindanao island hold diverse species of lycophytes, however the morpho-taxonomy diversity of this group is poorly documented there. The study aimed to determine Selaginella species richness, distribution and phenetic relationships based on morphological characteristics in Mindanao island. Specimens of Selaginella were collected in Mt. Apo, Kidapawan City; Mt. Hamiguitan, Davao Oriental; Mt. Kiamo, Mt. Kitanglad, Mt. Musuan and Mt. Limbawon in Bukidnon; Mt. Timpoong, Camiguin; and Mt. Malindang, Misamis Occidental. The 24 Selaginella species were collected and subjected to numerical phenetic analysis using the PC-ORD program. A total of 11 morphological characters and 44 character states were used in the analyses. Of the 24 species, seven are Philippine endemics, four are potential new species and two species are widely distributed in the areas studied. Results of the phenetic analysis showed four major clusters.

scholarly journals Phenetic analysis of Curcuma spp. in Yogyakarta, Indonesia based on morphological and anatomical characters

2019 ◽  
Vol 20 (8) ◽  
Author(s):  
Mulya Sungkawati ◽  
L. HIDAYATI ◽  
B.S. DARYONO ◽  
Purnomo Purnomo
Keyword(s):  
Economic Value ◽  
Similarity Index ◽  
Morphological Characteristics ◽  
Principal Component ◽  
Phenetic Analysis ◽  
Anatomical Characteristics ◽  
Morphological Variations ◽  
Phenetic Relationships ◽  
Anatomical Characters ◽  
Group B

Abstract. Sungkawati M, Hidayati L, Daryono BS, Purnomo. 2019. Phenetic analysis of Curcuma spp. in Yogyakarta, Indonesia based on morphological and anatomical characters. Biodiversitas 20: 2340-2347. Curcuma spp., also known as ginger (Zingiberaceae), has economic value in traditional medicine. However, its many morphological variations cause difficulties in identification and classification. Therefore, observation of its morphological and anatomical characteristics, and of the phenetic relationships between Curcuma species, is important. This research aims to determine the specific characteristics of Curcuma spp. and to examine its phenetic relationships based on morphological and anatomical characteristics. The research was conducted in July 2018-February 2019 in the Bantul, Gunungkidul, Sleman and Karanganyar regions. Observation of the anatomical characteristics was conducted on the leaves and rhizomes and the data analyzed according to descriptive and quantitative/numerical methods. Clustering analysis with the Gower General Similarity Coefficient and Principal Component Analysis (PCA) was performed to determine the role of each character in groupings. The results of the research found seven species from 23 OTUs observed (C. aeruginosa, C. domestica, C. manga and C. xanthorrhiza, each with four OTUs; C. soloensis and C. zedoaria, with three OTUs each; and C. heyneana with one OTU) and showed that specific morphological characteristics were found in the flesh color rhizome, pseudostem color and midrib color. Specific anatomical characteristics were evident in the secretion cell color and the presence of trichomes on the leaves and rhizomes. The dendrogram shows a 0.70 phenon line consisting of two groups, group A (C. soloensis and C. domestica) fused in a 0.760 similarity index, and group B (C. aeruginosa, C. mangga, C. heyneana, C. soloensis, C. xanthorrhiza and C. zedoaria) fused in a 0.654 similarity index, which means that C. soloensis and C. domestica have a close phenetic relationship. The 0.80 phenon line consisted of five groups: C. domestica, C. soloensis, C. xanthorrhiza, C. zedoaria-C. mangga-C. heyneana and C. aeruginosa.

scholarly journals Morphometry and Phylogeny of the Different Populations of Selaginella tamariscina (P. Beauv.) Spring and S. pulvinata (Hook. & Grev.) Maxim. in Northern Thailand

2021 ◽  
Vol 20 (4) ◽  
Author(s):  
Udon Pongkawong ◽  
◽  
Jatupol Kampuansai ◽  
Rossarin Pollawatn ◽  
Arunothai Jampeetong ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Southern China ◽  
Phylogenetic Analyses ◽  
Dna Barcode ◽  
Morphological Characteristics ◽  
Taxonomic Status ◽  
Morphological Characters ◽  
The Philippines ◽  
Northern Thailand ◽  
Selaginella Tamariscina

Abstract “Dok Hin” is the Thai local name for Selaginella species that form rosettes. They commonly distributes in Siberia, Manchuria, southern China, Japan, the Philippines and Thailand. Morphology of Dok Hin is very resemble leading to misidentification. So, exactly number of species of Dok Hin in Thailand and their differences in morphological characteristics is not well understood. Thus, revision of morphological characters and phylogenetic confirmation of the taxonomic identification are needed. This study aims to examine morphological charateristics and phylogenetic patterns in eight populations of the Dok Hin in Northern Thailand. Morphology of Dok Hin from each populations was quantitatively examined using 15 vegetative and 6 reproductive characters meanwhile phylogenetic analyses was explored by DNA barcode ITS2. The results of the phylogenetic analysis revealed the existence of two species of Dok Hin, S. tamariscina and S. pulvinata. Selaginella tamariscina can be distinguished from S. pulvinata by its presence of a pseudotrunk above ground and ridges of dorsal leaves. On the other hand, the results of phylogenetic analysis indicated the differences among populations of S. pulvinata as well. Chiang Mai populations of S. pulvinata was characterized by peculiar set of characters long leaves and leaf apices look like caudate, while the rest of their populations have shorter leaves and leaf apices look like aristate. It indicates that S. pulvinata has genetic and phenotypic divergence among populations. However, additional studies of Dok Hin populations in other parts of Thailand and studies on different genetic markers are necessary to confirm the taxonomic status of S. pulvinata. Keywords: Dok Hin, Morphometric, Phylogeny, Pseudotrunk, Resurrection plant

scholarly journals Morphological variability of acorns and its taxonomic significance in Quercus. from Turkey

2015 ◽  
Vol 43 (3) ◽  
pp. 293-299 ◽  
Author(s):  
Y Bakis ◽  
MT Babaç
Keyword(s):  
Principal Component Analysis ◽  
Morphological Variability ◽  
Morphological Characteristics ◽  
Principal Component ◽  
Component Analysis ◽  
Morphological Characters ◽  
Taxonomic Significance ◽  
Morphological Variations ◽  
Quercus Species ◽  
Different Populations

Morphological variations of acorn among and within the groups of Quercus species were studied. A total of 617 acorns belonging to 14 species representing all 3 sections of Quercus L. (Fagaceae) in Turkey were examined in this study. Specimens were collected from 47 different populations over both Anatolian and Thrace part of Turkey. Principal component analysis was used to analyze the morphological characteristics of acorns. Results obtained from this study demonstrate the use of morphological characters in differentiating the taxa of Quercus and Cerris sections studied. Another important finding is the introgression among the acorns of species within Quercus section DOI: http://dx.doi.org/10.3329/bjb.v43i3.21601 Bangladesh J. Bot. 43(3): 293-299, 2014 (December)

Cytology and morphology of Pseudoroegneria deweyi (Poaceae: Triticeae): a new species from the foot hills of the Caucasus Mountains (Russia)

1992 ◽  
Vol 70 (5) ◽  
pp. 900-909 ◽  
Author(s):  
Kevin B. Jensen ◽  
S. L. Hatch ◽  
J. K. Wipff
Keyword(s):  
New Species ◽  
Morphological Characteristics ◽  
Morphological Characters ◽  
Chromosome Association ◽  
Agropyron Cristatum ◽  
Closely Related Species ◽  
The Caucasus ◽  
Naturally Occurring ◽  
Caucasus Mountains ◽  
A New Species

Cytological and morphological characteristics of a new species, Pseudoroegneria deweyi K. B. Jensen, from the Karachayevo-Cherkesskaya Avtonomnaya Oblast' Region of Russia are described. This species is cytologically stable, genomically similar to Pseudoroegneria tauri, highly fertile (cross-pollinating), and morphologically unique compared with most other species in the genus. Pseudoroegneria deweyi differs from other closely related species in the number of rachis nodes in the inflorescence. Pseudoroegneria stipifolia (2n = 2x = 14, SS) and Agropyron cristatum (2n = 2x = 14, PP) were used as male parents in crosses with P. deweyi. All three P. deweyi accessions studied were tetraploids (2n = 28) and behaved meiotically as allotetraploids with a mean chromosome association of 0.03 I + 13.30 II + 0.03 III + 0.26 IV per cell. In the hybrid P. deweyi × A. cristatum, average chromosome association was 5.92 I + 4.55 II + 1.83 III + 0.09 IV per cell, while the average chromosome association in P. deweyi × P. stipifolia was 4.98 I + 5.23 II + 1.73 III 0.04 IV per cell. Pseudoroegneria deweyi joins P. tauri as the only other known naturally occurring species with the genomic formula of SSPP. Cluster analysis of 21 morphological characters supports the inclusion of P. deweyi as part of the genus Pseudoroegneria rather than Agropyron. Key words: Agropyron, Pseudoroegneria, chromosome pairing, meiosis, Triticeae, new species.

Systematics and biogeography of Eastern Caribbean frogs (Leptodactylidae: Eleutherodactylus), with the description of a new species from Dominica

1994 ◽  
Vol 72 (12) ◽  
pp. 2217-2237 ◽  
Author(s):  
Hinrich Kaiser ◽  
David M. Green ◽  
Michael Schmid
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Morphological Characteristics ◽  
Morphological Characters ◽  
Greater Antilles ◽  
South American ◽  
Island Endemic ◽  
Rapid Divergence ◽  
Present Distribution ◽  
Eastern Caribbean

Populations of Eleutherodactylus on the island of Dominica, West Indies, differ from other Lesser Antillean members of the genus by their vocalizations, morphology, sexual size dimorphism, allozymes, and chromosomes. Thus, these populations comprise a new endemic species, closely related to E. johnstonei and E. martinicensis. The new species is most abundant in montane forest habitats at elevations of more than 500 m. Females commonly attain snout–vent lengths of more than 35 mm, making them the largest Lesser Antillean Eleutherodactylus. Frogs are brown during the day, but change color to dark orange when active at night. This species is the ninth Eastern Caribbean Eleutherodactylus species and the fifth single-island endemic. A phylogenetic analysis of external and internal morphological characteristics shows that Eastern Caribbean Eleutherodactylus are members of two distinct clades, one of South American origin, the other of Greater Antillean ancestry. We suggest that the present distribution of these species results from the dispersal of elements of the larger herpetofaunas from the Greater Antilles and South America, and that rapid divergence of the Eastern Caribbean Eleutherodactylus fauna may be continuing. The phylogenetic analysis also confirms that morphological characters of Eleutherodactylus species can be highly homoplastic.

scholarly journals Maritime trap-jaw ants (Hymenoptera, Formicidae, Ponerinae) of the Indo-Australian region – redescription of Odontomachus malignus Smith and description of a related new species from Singapore, including first descriptions of males

ZooKeys ◽  
2020 ◽  
Vol 915 ◽  
pp. 137-174
Author(s):  
Wendy Y. Wang ◽  
Aiki Yamada ◽  
Seiki Yamane
Keyword(s):  
New Species ◽  
Morphological Characteristics ◽  
Species Group ◽  
The Philippines ◽  
Dna Evidence ◽  
Littoral Habitat ◽  
Morphological Differences ◽  
Worker Caste ◽  
First Time ◽  
Distinct Morphology

The maritime trap-jaw ant Odontomachus malignus Smith, 1859 is thought to be widespread throughout islands in the Indo-Pacific and parts of the Oriental realm. Because of its unique nesting preference for harsh littoral habitat and distinct morphology, O. malignus has usually been assumed to consist of only one species. We, however, describe a new species similar to O. malignus found in the mangroves of Singapore, Southeast Asia – Odontomachus litoralissp. nov. We find strong evidence of both species existing in (near) sympatry, and also distinct morphological differences between O. malignus and the new species. Additional complementary DNA evidence in the form of COI barcodes (313 bp) supporting putative species identification and delimitation is provided. Defining morphological characteristics for the O. malignus species group (nested within the larger O. infandus clade) are given in detail for the first time. The worker and queen castes of the new species are described; a redescription of the worker caste of O. malignus, based on specimens from Singapore and the Philippines in addition to the holotype, is also given. The males of both species are also described for the first time, including male genitalia. A preliminary key to most known species of the O. infandus group based on the worker caste is provided.

scholarly journals New species of Sphagnum from the Philippines with remarkable morphological characters

2018 ◽  
Vol 12 (1) ◽  
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Plastid Dna ◽  
Morphological Characters ◽  
The Philippines ◽  
Mountain Lake ◽  
High Mountain ◽  
Leaf Cell ◽  
High Mountain Lake ◽  
Dna Sequence Data

Sphagnum apopenneysii B.C. Tan, Ignatov, Ignatova, & B. Mishler is described as a species new to science. It was found submerged in a high mountain lake, at 2385 m elev. on Mt. Apo on Mindanao island in the Philippines. The new species is peculiar in its poor expression of leaf cell dimorphism. Cells in the upper half of the branch leaves are all identical, linear-vermicular, and all have chloroplasts and nuclei. In the mid-leaf, a moderate differentiation in shape appears with larger cells, approaching in shape to hyalocysts, yet still containing chlorophyll. Only near the base of the branch leaves is a pattern common to most Sphagnum species observed, including inflated hyalocysts with fibrils, albeit without any pores. Collections from deeper water have long lanceolate leaves, while plants from shallower water have stem leaves that are ovate-triangular, similar to those in many species of Sphagnum in section Cuspidata. Both nuclear and plastid DNA sequence data support the placement of this new moss in section Cuspidata.

scholarly journals Morphometric analysis of Desmodium Desv. in Bangladesh

2013 ◽  
Vol 41 (2) ◽  
pp. 143-148
Author(s):  
Md Zahidur Rahman ◽  
M Oliur Rahman
Keyword(s):  
Cluster Analysis ◽  
Morphometric Analysis ◽  
Morphological Characters ◽  
The Other ◽  
Morphological Similarity ◽  
Phenetic Analysis ◽  
Upgma Dendrogram ◽  
Phenetic Relationships ◽  
Vegetative Characters

Phenetic analysis based on morphological characters is presented for 14 species of Desmodium Desv. in Bangladesh. This study examines patterns of morphological similarity and variation within Desmodium using 36 floral and vegetative characters. D. heterophyllum shows highest similarity with D. triflorum among the species employed. UPGMA dendrogram is constructed based on cluster analysis which reveals two major clusters, the first of which consists of seven species while the second cluster comprises six species, and D. microphyllum is found far from all other species. The presence of winged petioles distinguishes D. alatum and D. auriculatum from the other species. The present study shows the application of morphometric analysis for understanding the phenetic relationships among the species of Desmodium. DOI: http://dx.doi.org/10.3329/bjb.v41i2.13438 Bangladesh J. Bot. 41(2): 143-148, 2012 (December)

Morphological characters and molecular data reveal a new species of Rhodonia (Polyporales, Basidiomycota) from China

Phytotaxa ◽  
2017 ◽  
Vol 328 (2) ◽  
pp. 175
Author(s):  
YUAN YUAN ◽  
LU-LU SHEN
Keyword(s):  
New Species ◽  
Rna Polymerase Ii ◽  
Dna Sequences ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Northwest China ◽  
Morphological Characters ◽  
Molecular Data ◽  
Molecular Evidence ◽  
A New Species

A new polypore, Rhodonia tianshanensis, collected from West Tianshan Nature Reserve in Xinjiang Autonomous Region (northwest China), is described and illustrated based on morphological characteristics and molecular evidence. It is characterized by having resupinate basidiomata with an oblique tube layer, fusoid cystidioles in the hymenium, and cylindrical basidiospores. Based on multiple loci DNA sequences including the internal transcribed spacer (ITS), the large subunit (nLSU), and the second subunit of RNA polymerase II (RPB2) regions, our phylogeny strongly supported R. tianshanensis as a new species belonging to the genus Rhodonia.

scholarly journals Some additional data to the genus Bombax L. (Malvaceae- Bombacoideae) for the flora of Vietnam

2017 ◽  
Vol 33 (4) ◽  
Author(s):  
Phan Ke Loc ◽  
Nguyen Thi Nhung ◽  
Nguyen Thi Anh Duyen
Keyword(s):  
Species Composition ◽  
Additional Data ◽  
Morphological Characteristics ◽  
Morphological Characters ◽  
Herbarium Specimens ◽  
National University ◽  
Cultivated Species ◽  
Species Composition And Distribution ◽  
First Time ◽  
Small Genus

Some additional data to the genus Bombax L. (Malvaceae- Bombacoideae) for the flora of Vietnam   Phan Kế Lộc1, Nguyễn Thị Nhung2, Nguyễn Thị Ánh Duyên3 1Faculty of Biology, VNU University of Science, 334 Nguyễn Trãi, Thanh Xuân, Hanoi, Vietnam 2VNU University of Education, 144 Xuân Thủy, Cầu Giấy, Hanoi, Vietnam   Abstract: Bombax L. (Malvaceae- Bombacoideae) is a small genus with 8 species, distributed in Old World. Up to now there are 4 species of Bombax registered for the flora of Vietnam, namely B. albidum Gagnep., B. anceps Pierre, B. ceiba L. and B. insigne Wall. Goal of this paper is to contribute some additional data of its species composition and distribution. Specimens of six collecting numbers (three of native and three of cultivated species) were collected, studied and housed at the herbarium (HNU) of the Hanoi University of Science, Vietnam National University. Due to the lacking of branchlets bearing leaves and flowers of collected specimen P 7660 is named as Bombax cf. cambodiense Pierre, new occurrence for the flora. Bombax anceps Pierre for the first time was seen and taken photos in northwestern Son La Province, far from the main locations in the south. Morphological characters mainly of abaxial face calyx, petals, stamens and pistil of cultivated Bombax ceiba L. are illustrated. The occurrence of Bombax insigne Wall. is not confirmed by herbarium specimens. Comparaison of main morphological characteristics of studied Bombax taxa are presented.

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