scholarly journals Morphological Diversity of Dorystoechas hastata, a Relict Endemic Species, Across Habitat Variability

2021 ◽  
Author(s):  
Ceren Selim ◽  
Songül Sever Mutlu ◽  
İsmail Deniz
Keyword(s):  
Endemic Species ◽  
Morphological Diversity ◽  
Habitat Variability

scholarly journals Pollen diversity in Phyllanthus species (Phyllanthaceae) Andhra Pradesh, India

2020 ◽  
Author(s):  
R. R. Venkata Raju ◽  
S. Akkulanna ◽  
Jangam Ganga Kailas ◽  
K. Raja Kullayiswamy ◽  
Hari Ramakrishna
Keyword(s):  
Medicinal Plants ◽  
Endemic Species ◽  
Pollen Morphology ◽  
Andhra Pradesh ◽  
Morphological Diversity ◽  
Taxonomic Diversity ◽  
Test Species ◽  
First Report ◽  
Taxonomic Importance ◽  
Characteristic Features

The present study deals with the pollen morphological diversity and taxonomic importance among the Phyllanthus species belonging to the Phyllanthaceae family from combined Andhra Pradesh. Sixteen species belonging to genus Phyllanthus analyzed the pollen morphology using SEM. The size, shape, symmetry, aperture and ornamentation were recorded in all test species, among them ten were tricolporate, three tetracolporate while the remaining indicates the pantosyncolpate. The reticulate ornamentation is common and predominant in all taxa. The evaluation of taxonomic diversity among Phyllanthus species hitherto not known from Andhra Pradesh, hence the present study is the first report and gains importance. It is clear that the pollen characteristic features are significant in the identification of endemic species (P.scabrifolius and P.narayanaswamii) and confirmation of potential medicinal plants (P. amarus and its allied species) with the help of micromorphological pollen studies.

scholarly journals A study of the gnammas (rock pools) in some granitic outcrops in central Victoria, with a comparison of their invertebrate communities across southern Australia

2017 ◽  
Vol 129 (1) ◽  
pp. 21 ◽  
Author(s):  
Brian V. Timms
Keyword(s):  
Species Richness ◽  
Endemic Species ◽  
South Australia ◽  
Rock Pools ◽  
Habitat Size ◽  
Habitat Variability ◽  
Climatic Fluctuations ◽  
Central Victoria ◽  
Rock Exposure ◽  
Western Australian

Gnammas in central Victoria occur at Kooyoora, Terrick Terrick, Mt Pilot near Chiltern and Bald Rock near Euroa. Though similar structurally and with similar hydroperiods to those in the Western Australian Wheatbelt and on Eyre Peninsula (EP), South Australia, many are smaller and all have fresher waters. Momentary species richness in pan gnammas range from 2.7 at Bald Rock to 9.3 at Terrick Terrick and in pit gnammas from 7.6 at Kooyoora to 15.3 at Terrick Terrick. These figures are significantly lower than figures of ca 30 for WA pans and ca 10 for EP pans, but ambivalent for pits, cf 12 in WA, and 9 on EP. Central Victorian gnammas have only one endemic species compared with many in WA and a few on EP. Species seem to have few special adaptations for life in Victorian gnammas, compared to many in WA. Factors thought to be influencing these differences include habitat size (a function of site age), number of gnammas per rock exposure (habitat variability and availability), and past climatic fluctuations (promotion of speciation). All these factors enhance diversity in WA, but mostly inhibit it in central Victoria, with Eyre Peninsula being intermediate.

Triassic sponges (Sphinctozoa) from Hells Canyon, Oregon

1988 ◽  
Vol 62 (03) ◽  
pp. 419-423 ◽  
Author(s):  
Baba Senowbari-Daryan ◽  
George D. Stanley
Keyword(s):  
Endemic Species ◽  
Upper Triassic ◽  
Island Arc ◽  
Tropical Island ◽  
The Family ◽  
Wallowa Terrane ◽  
Unique Condition ◽  
Hells Canyon

Two Upper Triassic sphinctozoan sponges of the family Sebargasiidae were recovered from silicified residues collected in Hells Canyon, Oregon. These sponges areAmblysiphonellacf.A. steinmanni(Haas), known from the Tethys region, andColospongia whalenin. sp., an endemic species. The latter sponge was placed in the superfamily Porata by Seilacher (1962). The presence of well-preserved cribrate plates in this sponge, in addition to pores of the chamber walls, is a unique condition never before reported in any porate sphinctozoans. Aporate counterparts known primarily from the Triassic Alps have similar cribrate plates but lack the pores in the chamber walls. The sponges from Hells Canyon are associated with abundant bivalves and corals of marked Tethyan affinities and come from a displaced terrane known as the Wallowa Terrane. It was a tropical island arc, suspected to have paleogeographic relationships with Wrangellia; however, these sponges have not yet been found in any other Cordilleran terrane.

Evaluation of the essential oil composition of fruits of three endemic species of Tornabenea from Cape Verde Islands

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
C Grosso ◽  
G Teixeira ◽  
I Gomes ◽  
ES Martins ◽  
JG Barroso ◽  
...  
Keyword(s):  
Essential Oil ◽  
Endemic Species ◽  
Essential Oil Composition ◽  
Cape Verde ◽  
Oil Composition ◽  
Cape Verde Islands

Secondary metabolites from the aerial parts of Stachys tetragona, a Greek endemic species

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
A Afouxenidi ◽  
T Milošević-Ifantis ◽  
H Skaltsa
Keyword(s):  
Secondary Metabolites ◽  
Endemic Species ◽  
Aerial Parts

Rediscovery and lectotypification of the Philippine endemic Hornstedtia microcheila Ridl. (Zingiberaceae) including an amendment to its description

2017 ◽  
Vol 11 (2) ◽  
Keyword(s):  
Endemic Species ◽  
The Philippines ◽  
Distribution Data ◽  
Taxonomic Key

Hornstedtia microcheila Ridl. (Zingiberaceae; Alpinioidieae; Alpinieae) is a poorly-known endemic species in the Philippines. It has not been collected again since its description in 1909. In 2017, however, the species was rediscovered in the Mt. Mandalagan Range, Patag, Silay City, Negros Occidental, after a lapse of over a century. A new, amended and extended description of H. microcheila based on this new collection is presented herein. Typification, colour photographs, distribution data, ecological details as well as a taxonomic key to the different Hornstedtia species in the Philippines are also provided.

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