scholarly journals Morphological peculiarities of fruits of the rare species Iris halophila Pall, I. pumila L. and I. hungarica Waldst. et Kit. (Iridaceae Juss.) in the conditions of introduction in the meadow-steppe cultural phytocenosis

2020 ◽  
Vol 85-86 ◽  
Author(s):  
V.V. Gritsenko
Keyword(s):  
Geographical Location ◽  
Morphological Structure ◽  
Botanical Garden ◽  
Apical Part ◽  
Meadow Steppe ◽  
Steppe Species ◽  
Diagnostic Characters ◽  
Distinguishing Features ◽  
Septal Suture ◽  
Number Of Seeds

Objective – to analyze morphological structure and to reveal common and distinguishing features of the fruit in rare steppe species Iris halophila, I. pumila and I. hungarica introduced in conditions of meadow-steppe cultural phytocenosis in the M.M. Gryshko National Botanical Garden NAS of Ukraine (NBG). Material and methods. Fruits of I. halophila, I. pumila and I. hungarica were collected on the botanical-geographical plot “Steppes of Ukraine” of NBG during 2015–2019. Morphological terms are provided according to Artyushenko & Fedorov (1986). Results. In all analyzed species, fruit is a trimeric and trilocular loculicidal capsule with multi-seeded locules. This capsule is erect, straight, leathery, glabrous, opening by dehiscence from top to bottom along the dorsal veins of carpels. The morphological peculiarities of the fruits, which may be additional diagnostic characters of these species, are established. In particular, in I. halophila capsule is cylindrical with the upper part elongated into the apical spout (long, thin, bent to the side). The surface of I. halophila capsule is smooth, matte, six-ribbed. Ribs are located on both sides along each of dorsal veins (i.e., along the dehiscence stria). The dehiscence is complete with diverging upper parts of the valves that remain connected just at the base. Capsule of I. pumila is ellipsoidal with the upper part also elongated into the apical spout (short, thick, awl-shaped). The surface of I. pumila capsule is wrinkled, without ribs. Commissural (septal) suture and dorsal veins are protruding. The capsule dehisces completely by three slits, but the valves remain connected in the apical part and at the base. Capsule of I. hungarica is oblong-ellipsoidal, without apical spout. The surface is veined, grumous, with six grooves above the commissural sutures and dorsal veins, without ribs. The capsule of I. hungarica opens only partly toward the peduncle, leaving lower part indehiscent. The upper parts of the valves diverge, while the lower part of capsule remains unopened. Conclusions. It was established that shape of capsule, in particular structure of its upper part, presence of ribs and apical spout, as well as the surface features together with peculiarities of dehiscence are constant parameters and can be used as diagnostic characters to distinguish these species. The size and color of the capsules, as well as the number of seeds per capsule of I. halophila, I. pumila and I. hungarica varied – this may depend on environmental conditions, in particular geographical location, and many other factors, which should be analyzed precisely in future.

Taxonomic revision of Australian species of Atyoida Randall (Crustacea : Decapoda : Atyidae), the genera Atyoida and Atya Leach

1982 ◽  
Vol 33 (2) ◽  
pp. 343 ◽  
Author(s):  
MJ Smith ◽  
WD Williams
Keyword(s):  
Life Cycle ◽  
Morphological Variation ◽  
Hawaiian Islands ◽  
Taxonomic Revision ◽  
Diagnostic Characters ◽  
Australian Species ◽  
Life Cycle Strategy ◽  
Distinguishing Features ◽  
Pacific Area

A reconsideration of the diagnostic characters of Atya Leach and Atyoida Randall supports their generic separation. Accordingly, Atyoida is reinstated as a full genus of which the distinguishing features are slender third peraeopods with a relatively short merus, a tapering endopod in the male first pleopod and protandry. It includes three species, A. bisulcata Randall from the Hawaiian Islands, A. pilipes (Newport) widespread in the Indo-Pacific area, and A. striolata (McCulloch & McNeill) found only in Australia. A. striolata is fully redescribed. Morphological variation throughout its range is slight; no subspecies are distinguishable. It is suggested that larvae hatch in estuaries and that protandry is an adaptive life-cycle strategy.

scholarly journals ОСОБЛИВОСТІ СТЕПОВИХ ЕКОСИСТЕМ НАЦІОНАЛЬНОГО ПРИРОДНОГО ПАРКУ «КРЕМЕНЕЦЬКІ ГОРИ», ЇХ ЗБЕРЕЖЕННЯ ТА ВІДТВОРЕННЯ

2019 ◽  
Vol 75 (1) ◽  
pp. 94-99
Author(s):  
М. Shtogrin ◽  
L. Onuk ◽  
A. Shtogun ◽  
I. Bobrik
Keyword(s):  
Rare Species ◽  
Field Research ◽  
Rare Plants ◽  
The State ◽  
Meadow Steppe ◽  
Steppe Species ◽  
Natural Park ◽  
Steppe Ecosystems ◽  
Nature Park ◽  
Management Project

Steppe areas of the National Natural Park "Kremenets Mountains" occupy the minimum area in open hills and rocky niches, so the priority tasks are the protection of unique steppe ecosystems.Reproduction of steppe areas is one of the tasks aimed at preserving the diversity of steppe and petrophytic flora, the structure of cenoses in the steppe regions, as well as the habitats of rare steppe plants.The work is based on field research materials conducted during 2012-2018 on the territory of the National Natural Park "Kremenets Mountains". In the course of research, literary data and geo-botanical studies of the Strahov, Vovcha, Sokolina, Maiden cliffs and Zamkov mountains have been processed, flora and phytocenotic features of steppe and meadow-steppe phyto groups, the state and structure of rare species populations have been described.Characterized by the laws of distribution of steppe and meadow-steppe species of plants on the territory of the National Nature Park "Kremenets Mountains". The influence of natural conditions is described, factors which contribute to the decrease in the number of populations of these species are determined. The measures on preservation and reproduction of steppe ecosystems, preservation of the diversity of steppe and petrophytic flora, and the structure of the cenosis of the steppe regions are presented. The age structure of Adonis vernalis L., which grows on the Malyatyn and Vovchyna rivers, is studied.In order to preserve the populations of the listed rare steppe plant species, active measures have been taken within the framework of the National Natural Park "Kremenets Mountains", which consists in reducing the anthropogenic impact and restoring the settlement of rare species. According to the Territory Management Project, the state of afforestation of steppe areas is monitored, shrubs, undergrowth of trees and invasive herbaceous plants (in particular, Solidago canadensis L.) are cleared with which the steppe areas spontaneously grow; some measures are taken to increase the number of rare plants (repatriation).This will promote the expansion of steppe areas, the increase of the proportion of steppe and meadow species in the grassland and increase the area under the populations of individual rare species.

Acropora rongelapensis sp. nov., a new species of Acropora from the Marshall Islands (Scleractinia: Astrocoeniina: Acroporidae)

Zootaxa ◽  
2004 ◽  
Vol 590 (1) ◽  
pp. 1 ◽  
Author(s):  
ZOE T. RICHARDS ◽  
CARDEN C. WALLACE
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Coral Species ◽  
Marshall Islands ◽  
Central Pacific ◽  
Diagnostic Characters ◽  
Central Pacific Ocean ◽  
The Republic ◽  
Distinguishing Features ◽  
A New Species

A new coral species, Acropora rongelapensis, from the northern central Pacific Ocean is described. On present records, this species appears to be endemic to the Republic of the Marshall Islands. Distinguishing features of the species include sub-flattened branches with widely separated radial corallites born laterally. Diagnostic characters of the new species place it within the Acropora loripes group.

scholarly journals Fruit and seed traits of Berberis croatica Horvat and Berberis vulgaris L.

2012 ◽  
Vol 71 (1) ◽  
pp. 115-123 ◽  
Author(s):  
Dario Kremer ◽  
Renata Grubešić ◽  
Zvjezdana Popović ◽  
Ksenija Karlović
Keyword(s):  
Botanical Garden ◽  
Fruit Shape ◽  
Width Ratio ◽  
Seed Traits ◽  
Berberis Vulgaris ◽  
Length Width ◽  
Number Of Seeds

Fruit and seed traits ofBerberis croaticaHorvat andBerberis vulgarisL.The three year variability of fruits and seeds was investigated inBerberis croatica(Vošac, Mt Biokovo, Rakov Potok near Zagreb) and inB. vulgaris(Fran Kušan Pharmaceutical Botanical Garden in Zagreb).Berberis croaticahad the following dimensions of fruits (seeds): length 7.28-7.88 (4.57-5.03) mm; width 3.85-3.99 (width 1: 2.06-2.20; width 2: 1.44-1.63) mm; weight 0.065-0.078 (0.0116-0.0134) g. Dimensions ofB. vulgarisfruits (seeds) were: length 10.20-11.29 (5.71-6.24) mm; width 5.29-5.83 (width 1: 2.40-2.71; width 2: 1.60-1.98) mm; weight 0.1602-0.2199 (0.0146-0.0235) g. The fruit shape of both species was similar and the length/width ratio was 1.91-2.04 inB. croaticaand 1.77-2.07 inB. vulgaris.The number of seeds per fruit was 1.23-1.58 inB. croaticaand 1.36-1.54 inB. vulgaris. Generally, fruits and seeds ofB. vulgariswere significantly longer, wider and heavier than fruits and seeds ofB. croatica. ANOVA showed significant statistical differences between populations for all analyzed fruit and seed traits while the species significantly differed in all traits, except in the fruit shape and number of seeds in fruit.

scholarly journals Growth and development of Carthamus tinctorius L. in the conditions of Transnistria

2021 ◽  
pp. 218-221
Author(s):  
K. V. Mustyatse ◽  
N. S. Chavdar ◽  
O. M. Zagorodnyaya
Keyword(s):  
Soil Layer ◽  
Unknown Origin ◽  
Sowing Date ◽  
Botanical Garden ◽  
Carthamus Tinctorius ◽  
Sowing Time ◽  
The Past ◽  
Sowing Period ◽  
Number Of Seeds ◽  
Number Of Branches

Carthamus tinctorius L. is a plant, that is used for oil production and dyeing, and also used for medical purposes and cosmetology. A distinctive biological feature of this plant is its high drought resistance. In the process of global warming the increase in air temperature in Transnistria over the past 70 years amounted to 1,2…1,3 °C, the increase in soil temperature over the past 20 years in the observed soil layer 0,2…3,2 m amounted 0,8…1,2 °C. In this regard the intercalation of drought resistant crops, such as Carthamus tinctorius L., into agricultural production is relevant. The dura- tion of the growing season of a Carthamus tinctorius L. collection specimen of unknown origin in the Republican Botanical Garden (in the town of Tiraspol) when sown in middle of April for the period from the year of 2008 to the year of 2017 ranged from 103 to 113 days. In the conditions of Transnistria in the year of 2020 for the first time the influence of sowing time of Carthamus tinctorius L. on the development of a complex of features was studied. Sowing of Carthamus tinctorius was carried out five times: the 20th and the 27th of March, the 3rd and the 14th of April, the 2nd of May. The study of the influence of the sowing time showed decreasing values of the complex of features with later sowing time of Carthamus tinctorius L. The mostly significant decreased with a later sowing time were such features as the number of branches of the first and the second level, the number of seeds in the inflorescence, the number of seeds per plant. The best sowing date in the conditions of an acute drought in the year of 2020 was the first sowing time on the 20th of March. The value of the features in this sowing period was: plants’ height — 55 cm, the number of branches of the first level — 8,7 pieces, the number of branches of the second level — 4,6 pieces, the number of inflorescences per plant — 14,1 pieces, the number of seeds in the inflorescence — 7,0 pieces, the number of seeds per plant — 64,8 pieces.

scholarly journals Polymorphism of morphometric parameters of the flower and fruit of the Sargent apple tree (Malus sargentii Rehl)

2021 ◽  
Vol 6 (48) ◽  
pp. 18-18
Author(s):  
Vitaly Donskih ◽  
Tatiana Aniskina ◽  
Victоria Kryuchkova
Keyword(s):  
Apple Tree ◽  
Inverse Correlation ◽  
Botanical Garden ◽  
Fruit Weight ◽  
Cultivated Plants ◽  
Morphometric Traits ◽  
Fruit Length ◽  
Flower Diameter ◽  
Number Of Seeds ◽  
Fruit Diameter

The Sargent apple tree is highly valued for its decorative qualities, it is used in breeding work when developing new ornamental varieties. To assess the breeding potential, as well as planning crosses, information is needed on the variability of the morphometric traits of the apple flower and fruit, as well as the presence of a relationship between these traits. The research was carried out in the laboratory of cultivated plants of the Tsytsin Main Botanical Garden on 12 quantitative traits of flower and fruit. It was found that almost all traits are characterized by a low level of polymorphism of 7-15% (flower diameter - 13.2%, pedicel thickness - 14.9%, peduncle length - 8.3%, fruit length - 4.7%, fruit diameter - 5.7%) or an average level (16-25%), except for the mass of seeds (40%) and the number of seeds in the fruit (33.9%). An inverse correlation was found between the length of the anther and the number of seeds inside the fruit (r = -0.46), as well as strong direct relationships between the diameter of the fruit and the weight of the fruit (r = 0.79) and the diameter of the fruit and the length of the fruit (r = 0, 78). A reliable direct relationship between the group was also revealed: flower length, filament length, pedicel thickness, fruit length, fruit diameter, fruit weight. Keywords: POLYMORPHISM, FLOWERS, CRABAPPLES, SORBOMALUS, MALUS SARGENTII, SARGENT APPLE TREE

scholarly journals Morphological Characteristics of Araceae Plants in Liwa Botanical Garden, West Lampung

2020 ◽  
Vol 7 (1) ◽  
pp. 35-40
Author(s):  
Risa Suryani Wilyasari ◽  
Yulianty Yulianty ◽  
Zulkifli Zulkifli ◽  
Endang Nurcahyani
Keyword(s):  
Ornamental Plants ◽  
Morphological Characteristics ◽  
Morphological Structure ◽  
Botanical Garden ◽  
Medicine Research ◽  
And Bisexual ◽  
High Level ◽  
Compound Interest ◽  
Ways Of Life ◽  
Collection Methods

Araceae is one type of plant that has a fairly high level of diversity and also rich in benefits such as a source of food, ornamental plants, and medicine. Research on the characteristics of Araceae in Indonesia is still limited. The purpose of this study was to identify Araceaeplants based on morphological structure and analyze the morphological characteristics ofAraceae in Liwa Botanical Garden, West Lampung. This research was conducted from November 2019 to January 2020. Data were collected at Liwa Botanical Garden, WestLampung based on exploration and observation collection methods. Morphological structure data were analyzed as descriptive and qualitative. The parts of plants that are compared between Araceae plants are the shape, size of leaves, petiole, and inflorescences. Observations show that 21 genera of Araceae are consisting of 26 plants. Araceae plants have three different ways of life, namely terrestrial, epiphytic, and aquatic. The shape of the leaves is ovatus, cordatus, lanceolatus, cuneatus, needle, peltatus, sagittatus, hastatus, palmatisect, bipinnatisect and tripinnatisect. The characteristics of this plant have compound interest with cob types (spadix) which are covered by a spatha with two types of inflorescences, namely unisexual and bisexual.

Computational Analysis of Historical Hebrew Newspapers: Proof of Concept

Zutot ◽  
2020 ◽  
Vol 17 (1) ◽  
pp. 97-110
Author(s):  
Oren Soffer ◽  
Zef Segal ◽  
Nurit Greidinger ◽  
Sinai Rusinek ◽  
Vered Silber-Varod
Keyword(s):  
Computational Analysis ◽  
Geographical Location ◽  
Morphological Structure ◽  
Proof Of Concept ◽  
Computational Tools ◽  
Specific Term ◽  
Hebrew Language ◽  
Micro Level ◽  
Shed Light

Abstract This article focuses on one decade, 1874–1883, in the relatively long lifespan of the Hebrew weekly Ha-Tzefirah, which was founded in Warsaw in 1862. Applying computational tools to the study of the early Hebrew press requires a unique effort. The Hebrew language in general is distinct in its characters, morphological structure, and word order. The contribution of this proof-of-concept study is two-fold: First, computational analysis provides a long-term indication of trends in the discourse that cannot be attained through qualitative study. The second contribution is on the micro level: Computational analysis can potentially shed light, in a diachronic perspective, on the use of a specific term or the discussion of a specific geographical location.

scholarly journals Features of floristic structure and productivity of dry meadows of the Left-Bank Forest-Steppe of Ukraine

2020 ◽  
Keyword(s):  
Vascular Plant ◽  
Amaranthus Retroflexus ◽  
Forest Steppe ◽  
Left Bank ◽  
Meadow Steppe ◽  
Steppe Species ◽  
High Productivity ◽  
Leading Role ◽  
Poaceae Family ◽  
Floristic Structure

The article presents the results of study of floristic structure and productivity of the dry meadows preserved in the ravine and gully system in the Zmiiv District of the Kharkiv Region. The research was carried out at the model sites with floral composition and features of use typical for the Left-Bank Forest-Steppe of Ukraine. It was established that the total phytocenosis productivity depends on the phytomass fluctuations of two main groups of plants, forbs and grasses. The flora of the studied meadows includes at least 87 vascular plant species. The ten main families altogether number 70 species (80.5 % of the species composition). The families Asteraceae Bercht. & J. Presl (23 species, 26.4 %), Fabaceae Lindl. (11 species, 12.6 %) and Poaceae Barnhart (8 species, 9.2 %) are presented best. This ratio of families is characteristic of herbaceous phytocenoses of the Holarctic floristic realm. The Poaceae family plays the leading role in the formation of meadow phytocenoses, since its members often dominate the main meadow formations. Analysis of the flora ecomorph spectrum revealed prevalence of a xerophilous group that includes meadow, meadow-steppe and steppe species. The obtained data indicate a rather significant xerophytization of the study area, which is typical for the growing conditions of the dry meadows located on the watersheds with atmospheric type of humidification only. Perennial herbaceous meadow-steppe and some ruderal species prevailed in the life form spectrum (77.0 %), which is characteristic of the meadow flora of the Kharkiv Region. Annual segetal weeds, introduced from neighboring fields, contribute significantly to the meadow flora (17.2 %), in particular, such adventive species as Ambrosia artemisifolia L., Amaranthus retroflexus L., and Cyclachaen axanthifolia (Nutt.) Fresen. The research of phytocenose productivity showed that the Poaceae proportion in the meadows with high productivity is usually about 35‒40 %. In the meadows with low productivity, it can exceed 50 % that is explained by the leading role of the family Poaceae in the formation of meadow phytocenoses under high xerophytization of the vegetation cover.

Revision of the Australian species of the fish family Leiognathidae

1985 ◽  
Vol 36 (4) ◽  
pp. 559 ◽  
Author(s):  
G Jones
Keyword(s):  
Identification Key ◽  
Body Proportions ◽  
Fish Family ◽  
Tooth Shape ◽  
Diagnostic Characters ◽  
Australian Species ◽  
The Family ◽  
Species Descriptions ◽  
Incorrect Usage ◽  
Distinguishing Features

The Australian species of Leiognathidae are revised and their distinguishing features more clearly defined. Fifteen Australian species are recognized: Gazza minuta, Leiognathus aureus, L. bindus, L. blochii, L. decorus, L. elongatus, L. equulus, L. fasciatus, L. leuciscus, L. smithursti, L. splendens, Leiognathus sp., Secutor insidiator and S. ruconius. Diagnostic characters for the species are difficult to ascertain as the family tends to be meristically constant. Identification relies principally on a combination of body proportions, distribution of scales, tooth shape and arrangement, and body pigmentation patterns. Species descriptions, figures, abbreviated synonymies and geographic distributions within Australia are presented for all species, and an identification key is given. Incorrect usage in the literature of several species names, including L. elongatus, L. brevirostris and L. lineolatus, is discussed.

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