bluuebunny/crossref_metadata_2025_split huggingface dataset:
Contribution à la cytotaxonomie de la section Cyclostigma Griseb. du genre Gentiana L.
Authors: Müller Gino 
Published: August 2010

AbstractLa section Cyclostigma du genre Gentiana regroupe environ 20 espèces et sous‐espèces principalement eurasiatiques. La présente étude porte sur les taxons centre‐ et ouest‐européens. Les nombres chromosomiques de 6 taxons sont publiés pour la première fois. Une instabilité chromosomique n'a été mise en évidence que chez deux espèces. Sur la base d'observations cytologiques, morphologiques, écologiques et chorologiques, le statut des divers taxons est précisé. Des expériences d'hybridation ont été réalisées et semblent montrer une interstérilité très forte, sauf entre G. verna et G. brachyphylla. Une esquisse historique et phylogénétique de la section Cyclostigma est proposée. Le nombre de base primitif le plus probable est × = 5. A partir d'un ancêtre du Tertiaire, on peut distinguer 4 phylums dant lesquels le nombre 7 (n = 7 ou n = 14) serait apparu à 2 reprises de manière indépendante. L'origine géographique de la section est située dans la zone aralocaspienne, mais les Alpes constituent un centre important de différenciation. Une clé de détermination pour les taxons d'Europe centrale et occidentale de la section Cyclostigma est proposée.
A morphological, geographical and karyological study of East Asian Bupleurum longiradiatum Turcz. and B. sachalinense Fr. Schmidt
Authors: Gorovoy P. G. , Volkova S. A. 
Published: August 2010

AbstractDie ostasiatischen Arten Bupleurum longiradiatum Turcz. und B. sachalinense Fr. Schmidt, die der Sektion Bupleurum der Subsektion Archaeopleurum Lincz. angehören, unterscheiden sich durch den Bau von Blütenständen und die Areale, haben aber den gleichen Bau von Früchten und unterscheiden sich durch Karyotypen nicht signifikant. Im Artikel werden Charakteristika von Karyotypen, Idiogramme, Synonyme, zitierte Literatur für beide untersuchte Arten angeführt.
Taxonomic studies in the genus Portulaca L. (Portulacaceae)
Authors: Nyananyo Bio Louis 
Published: August 2010

AbstractSystematic evidence from seed morphology and palynology (number, position and character of the aperture) showed a lack of discrete discontinuities amongst the twenty species of Portulaca L. studied. Habit and general morphology, however, exhibited a dichotomy amongst these species which was supported by cytological (chromosome number), and phytochemical (leaf flavonoids) analyses. Consequently, the genus Portulaca is now delimited into two sections: Portulaca L. sect. Portulaca (Engelmann) Nyananyo and Portulaca L. sect. Rotundatae Poellnitz.
Über die wahre Natur von Laurus primigenia Unger aus dem Chattien des Schiltals (Valea Jiului‐Petrosani, Kreis Hunedoara, SR Rumänien)
Authors: Givulescu Rāzvan 
Published: August 2010

AbstractNeben der Morphologie wird zum ersten Mal auch die Anatomie der Blätter untersucht, die als „Laurus primigenia”︁ aus dem Schiltal, SR Rumänien, beschrieben wurden. Anatomisch handelt es sich nicht um eine Lauraceae, sondern um eine Fagaceae vom Lithocarpus (Pasania)‐Typus. Eine neue Benennung dieser Blätter wird vorgeschlagen: Lithocarpus pulchra. Paläosoziologie und Paläoökologie des oligozänen Waldes im Schiltal werden im Vergleich mit der rezenten Evergreen broad‐leaved Forest Formation, in der Lithocarpus eine wichtige Rolle spielt, besprochen.
Cenotaxonomy of vegetal groups in the class Lemnetea W. Koch et Tx. 1954 in Romania
Authors: Sanda V. , Popescu A. , Peicea I. 
Published: August 2010

AbstractTrying to pay special attention to dominant, characteristic and differential species, we make a synthesis of vegetal associations of class Lemnetea mentioned in Romania; they were presented from a cenotaxonomical, ecological, syndynamical point of view, as well as the structural and floristical composition.
The northernmost and related romuleas
Authors: Abraham Arnfried 
Published: August 2010

AbstractThere is presented a treatment on the northernmost taxon of the genus Romulea Maratti, showing the necessary of its nomenclature as Romulea armoricana Jordan separated from Romulea columnae Sebastiani et Mauri. Furtheron, more detailed investigated are the both related taxa Romulea syrtica Jordan et Fourreau and Romulea rollii Parlatore, resulting in either modern diagnioses either newly compiled distribution maps.
A morphometric study of the Pinus mugo Turra complex and its natural hybridization with P. sylvestris L. (Pinaceae)
Authors: Christensen Knud Ib 
Published: August 2010

AbstractLocal and geographical variation in the Pinus mugo Turra complex, and the degree and effects of natural hybridization between P. mugo Turra and P. sylvestris L. are studied using various multivariate techniques. Reciprocal introgressive hybridization between the eastern P. mugo ssp. mugo and the western ssp. uncinata (Ram.) Domin has resulted in a topoclinal east‐west variation in the complex. The frequency and significance of hybridization and introgression between P. mugo and P. sylvestris is apparently low.
Nomenklatorische Studien bei Höheren Pilzen IV. Nichtblätterpilze (Aphyllophorales) mit Ausschluß der Porlinge
Authors: Rauschert Stephan 
Published: August 2010

AbstractEinige auf Grund der Beschlüsse des 13. Internationalen Botanischen Kongresses in Sydney 1981, vor allem wegen der Zurückverlegung des nomenklatorischen Startpunktes für Pilze auf Linnaeus 1753, sich ergebende nomenklatorische Änderungen (Änderungen von Pilznamen oder Autorzitaten) für Nichtblätterpilze (Aphyllophorales) mit Ausschluß der Porlinge werden ausführlich diskutiert und begründet.
Vegetation of inland desert wadis in Egypt X. The wadi system North of Hurghada
Authors: El‐Sharkawi H. M. , Salama F. M. , Fayed A. A. 
Published: August 2010

AbstractFive wadis proliferate in the area surveyed (latitudes 27°‐28 N and longitudes 33°‐34 E) drain this part of the Red Sea mountains into the sea (lower Gulf of Suez). This wadi system have distinguished variation in geomorphological and edaphic characteristics. Accordingly four associations phytosociologically identified are reflections of such variations. Such associations are not repetitions to those identified before in this series of investigations. Also, they have no analogues among communities recognized in this desert by other investigators.
Neu beschriebene Pflanzengesellschaften aus der Mongolischen Volksrepublik
Authors: Hilbig Werner 
Published: August 2010

AbstractAus der Mongolischen Volksrepublik werden 46 Pflanzengesellschaften als Assoziationen neu beschrieben und mit Typus‐Aufnahmen belegt. Es handelt sich um Nadel‐ und Laubwälder, Gebüsche, Hochstaudenfluren, Steppen, Fels‐ und Flußschotterfluren, Halbwüsten und Wüsten, alpine Kobresia‐Matten, alpine Polster‐ und Schuttfluren, Weiderasen und Ruderalbestände.
Epidermal morphology and ontogeny of stomata in some tropical Boraginaceae
Authors: Nyawuame H. G. K. , Gill L. S. 
Published: August 2010

AbstractEpidermal morphology, the structure and development of stomata in 13 species of Boraginaceae are described. The epidermal cells are straight‐walled on the upper surface and sinuous on the lower in the majority of the investigated species. The leaves are hypostomatic with either anomocytic or anisocytic stomata distributed on the lower surface. The anomocytic stomata follow agenous ontogenetic pathway while the anisocytic stomata are hemimesogenously derived. Laterally contiguous stomata in Cordia platythyrsa are recorded for the first time.
Die Lebermoos‐Flora der Lovsee‐Berge (Lovozerskie Gory)
Authors: Konstantinova Nadja A. 
Published: August 2010

AbstractDie Lebermoosflora der Lovsee‐Berge, eines kleinen Bergmassivs auf der Kola‐Halbinsel, wird mit ihren Besonderheiten vorgestellt und mit jener des Chibin‐Massivs verglichen.
Neue Materialien und chorologische Daten zur Flora von Bulgarien
Authors: Delipavlov Dimitar 
Published: August 2010

AbstractEs werden zwei neue Arten beschrieben: Pastinaca argyrophylla sp. nov. und Linaria brachyphylla sp. nov. Neu für die Flora Bulgariens sind die Art Gagea chrysantha (JAN.) SCHULTES et SCHULTES fil. sowie drei Unterarten: Avena barbata POTT. ex LINK subsp. wiestii (STEUD.) TZVEL., Trisetum flavescens (L.) BEAUV. subsp. tatricum CHRTEK und Peucedanum vittijugum BOISS. subsp. vittijugum. Für die übrigen Taxa werden neue Fundorte in Bulgarien mitgeteilt.
Study of Chenopodium interjectum J. MURR, Ch. mixtifolium J. MURR and Ch. laciniatum J. MURR
Authors: Dvořák F. 
Published: August 2010

AbstractLeaves (at the base of the branches and the middle cauline leaves) of the species Chenopodium interjectum J. MURR, Ch. mixtifolium J. MURR and Ch. laciniatum J. MURR are ± 3‐lobed. The blade of these leaves has in the second third of its length — as a rule on both sides — a conspicuous tooth. Ch. mixtifolium J. MURR has ± entire margin of the blade between the lateral lobes and the above‐mentioned conspicuous teeth; Ch. interjectum J. MURR — entire or denticulate; Ch. laciniatum J. MURR — toothed. Ch. mixtifolium J. MURR (with inflorescentia cymoso‐paniculata) differs from Ch. interjectum J. MURR and Ch. laciniatum J. MURR conspicuously by the inflorescence (inflorescence of these two species is spicato‐paniculata).According to the study of types and of further specimens a correction or a complement of J. MURR's diagnoses of these three species was made. All the three species have the same chromosome count: 2n = 54.The results ensuing from the cultivation of Chenopodium × mendelii D. are important for the understanding of Chenopodium album agg.
Die GattungenTetraplodonBR. eur. undSplachnumL. in der Moosflora Rumäniens
Authors: Mohan Gh. 
Published: August 2010

AbstractMit dieser Arbeit wird eine monographische Studie der GattungenTetraplodonBR. eur. undSplachnumL., wie sie in der Bryoflora Rumäniens vertreten sind, vorgelegt. Auf der Basis von Originalmaterial wurden morphologische, anatomische, ökologische und phytogeographische Untersuchungen durchgeführt, deren Daten die Diagnose der Arten, wie sie von verschiedenen in‐und ausländischen Autoren vorgelegt wurden, vervollständigen oder ergänzen.
Ein neues tracheidales Element der Koniferen im Astholz von Pinus aristata ENGELM
Authors: Süss H. , Schirarend Carsten 
Published: August 2010

AbstractIm Astholz von Pinus aristata wurde ein bisher bei Koniferen unbekanntes ring‐ und schraubenverdicktes tracheidales Element gefunden und von den Verfassern „Harzgangtracheide”︁ genannt.
Response ofPlantago albicansleaves of environmental drought
Authors: Elhaak M. A. 
Published: August 2010

AbstractPlantago albicansmeasurements of leaf area, leaf length, leaf width, increase in leaf area in young, fully expanded and old leaves in addition to leaf dry weights were carried out along two seasons. The first season was drier than the second. Correlation coefficients between these leaf measurements and plant leaf water content and climatic parameters indicated that drought not only decreased the plant leaf area and leaf dry weight but did also changes in the leaf morphology. Leaf width showed significantly negative correlation with climatic parameters. The produced leaves at the dry season were thin, longer and attained more hairs. They were also partially folded on the upper side. Leaf age decreased greatly but the activity of the apical bud and hence cell division was not affected with drought. Dry weight per unit leaf area increased also with drought.
Chambered crystal strands in the wood of Caesalpiniaceae
Authors: Ranjani K. 
Published: August 2010

AbstractRoot and stem woods of 29 taxa of Caesalpiniaceae were studied in detail with respect to the crystal strands. Although the crystals were of Calcium oxalate nature, variations were recorded in the presence or absence and, if present, in the density of distribution, height, number of constituent cells and pattern of distribution (among other wood tissues) of the crystal strands. The true morphology of the crystal strand is also discussed.
Phenotypic variability of fruit and its taxonomic significance in Thalictrum minus complex and species Thalictrum velebiticum Deg
Authors: Nikolić T. 
Published: August 2010

AbstractT. minus‐complex is a taxonomic difficult group, and embraces many taxa with contraversial rank and existence. T. velebiticum Deg. 1937 if exists, is an endemic plant from Dinara mountain. In this paper were quantitatively defined some morphology characteristics of fruit, statistics correlation between characters and taxonomic correlation between individuals in scatter diagrams, like aim in group sistematics, specially in define T. velebiticum status. The result shows weakly diagnostically important of this characteristics, and point at T. velebiticum like ecotype.
SEM study of the leaf epidermis in Indian species of Ixora L. (Rubiaceae)
Authors: Paul S. R. , Husain T. 
Published: August 2010

AbstractA SEM examination of the epidermis of mature leaves of 42 taxa in six sections of Ixora has been conducted. The results indicate that all the species and varieties (with the exception of I. subsessilis) have stomata situated exclusively on the abaxial leaf surface (hypostomatic), guard cells are raised above the subsidiary cells. The position of stomata in relation with the other epidermal cells may be at the same level, or sunken. Prominent peristomatal rims are present around the stomata in most species. Trichomes may be absent or infrequently present in different sections but their presence does not have any bearing on the classification of species. Cell boundaries (clear or not clear) and cuticular ornamentations are significant at the species level, but rarely at higher categories in certain cases.
Flora of the arboretum at Ibadan in South‐West Nigeria
Authors: Sharma B. M. 
Published: August 2010

AbstractFloristic list of the trees of arboretum shows a total of 146 species belonging to 37 families. Apocynaceae and Caesalpiniaceae families possessed the highest number of species. Most of the trees belonged to the height range 11 to 20 m and d.b.h. range 31–40 cm. 98 species possessed rough bark.
Polemics on the proximity and affinities of three insectivora taxa
Authors: Hemnath B. , Nageshwar G. , Radhakrishnaiah M. 
Published: August 2010

AbstractThe placement and the putative alliance among the insectivorous taxa are discussed in the light of chemical data and the available data from collateral disciplines such as anatomy, cytology, embryology, morphology and palynology. The multi‐disciplinary evalution and the totality of evidence suggest the disbandment of Droseraceae and a close approximation and fraternal affinity between Nepenthaceae and Sarraceniaceae.
A comparative study of oil canals in the pericarp of some Indian Umbelliferae
Authors: Dave Y. , Menon A. R. S. , Thomas V. 
Published: August 2010

AbstractThe present article incorporates a comparative study of oil glands in the pericarp of 15 Indian Umbelliferae genera. Development of oil gland is schizogenous. Each vitta is surrounded by 5–18 epithelial cells. Towards the maturity of the fruit, occasionally the vitta may get collapsed, or the cavity may get filled up with the secretion.
Studies on the adaptation of selected species of the family Gramineae A. JUSS. to salinization
Authors: Hamada E. A. M. , Hamoud M. A. , El‐Sayed M. A. , Kirkwood R. C. , El‐Sayed Hameda 
Published: August 2010

AbstractThe effect of salinity has been examined on osmolality, electric conductivity and pH values of cell‐sap and mineral composition (macro and micro nutrient elements) of barley (Hordeum vulgare L.), wheat (Triticum aestivum L.), and maize (Zea mays L.). The results show that with the exception of potassium and nitrogen contents the levels of most inorganic macro nutrient elements (sodium, calcium, magnesium, phosphorus) and micro nutrient elements (iron, boron, zinc, manganese, copper and chloride) increased with increase salinity concentrations. This was true also for osmolality and electric conductivity but not pH.
Structure and biology of extrafloral nectary in Desmanthus varigatus
Authors: Thomas V. , Vishwakarma A. K. 
Published: August 2010

AbstractThe structure of the extrafloral nectaries in Desmanthus varigatus was studied at the level of light microscope. A shallow cup shaped, non‐porate nectary present at the rachis base and had developed from a group of initials of hypodermal origin. The mature nectaries were supplied by phloem and had non‐glandular, cuticularized trichomes at their epidermal surfaces. Secreting nectaries appeared susceptable to fungal growth. Only non‐agressive ants visit the nectaries and the secretion was observed during morning hours. It is suggested that ants may have a little role in plant defence.
Die Herkunft hochandiner zentralperuanischer Gattungen – Versuch einer Florenanalyse
Authors: Gutte P. 
Published: August 2010

AbstractFür die zentralen Hochanden Perus wird die Herkunft der Flora auf Gattungsebene analysiert. Dabei werden andische, tropisch‐subtropische, holarktische und kosmopolitische Florenelemente unterschieden. Neben der Präsenz der Sippen findet auch die Frequenz, basierend auf pflanzensoziologischen Erhebungen, Berücksichtigung. Die prozentuale Berechnung erfolgt für die einzelnen Höhenstufen und pflanzensoziologischen Klassen getrennt.
Species structure of artificial grasslands with Zoysia japonica STEUD in Pyongyang, North Korea
Authors: Šrůtek M. , Kolbek J. 
Published: August 2010

AbstractIn Far East (mainly in Japan), considerable attention has been devoted to weeds of many types of seminatural and artificial vegetation. It allows us to compare the weed flora of artifical grasslands (seeded and planted) dominated by Zoysia japonica in Pyongyang (the capital of North Korea) with other similar communities.Some of the dominant or common species of the artificial monocoenoses with Z. japonica (Tables 1a, 1b, 2; Fig. 4) may be considered dangerous for field crops and seeded meadows. There are, especially, Kummerowia striata and Viola mandshurica. Of the rare species there are Oxalis corniculata, Equisetum arvense and Setaria viridis.Many weed species of the studied artificial grasslands also occur in intensive pastures with Zoysia japonica in Japan (Table 3). This similarity of both vegetation types is ascribed to a similar way of disturbance of vegetation and soil surface (grazing and trampling by livestock on the one hand and cutting and weeding on the other) and by the occurrence of the same dominant.Artificial grasslands in Pyongyang were classified as Zoysia japonica community. Four groups of phytosociological relevés were distinguished by using the ordination technique DCA and its comparison with BRAUN‐BLANQUET (Tables 1a, 1b, 2; Fig. 3).
Lichen genus Pyrenula from India VII. Pyrenula mastophora spore type
Authors: Upreti D. K. 
Published: August 2010

AbstractTwenty four species of the lichen genus pyrenula having Pyrenula mastophora type of spores are described. Pyrenula bilirana VAINIO, P. cinereovelata VAINIO, P. comirana VAINIO, P. costaricensis MUELL.‐ARG., P. fuscolurida VAINIO, P. limae VAINIO, P. melaleuca MUELL.‐ARG., P. microcarpoides MUELL.‐ARG., P. obscurior VAINIO and P. santensis (NYL.) MUELL.‐ARG. are new records for Indian lichen flora.
LM and SEM studies in seed morphology in some Tephrosia PERS. (Leguminosae)
Authors: Rao J. V. Subba , Rao S. R. Shanmukha 
Published: August 2010

AbstractSeed morphology has been studied both under LM and SEM in 12 taxa of Tephrosia. The seed shape is oblong, reniform or orbicular and the colour pale yellow (with dark mottlings), yellowish brown, blackish brown or black. The surface texture is mostly smooth and the hilum median or submedian. The spermoderm pattern as observed under SEM is simple‐reticulate, multi‐reticulate or lophate. A key is presented for delimiting the taxa studied.
Structure and biology of floral nectary in Allamanda cathartica L. (Apocynaceae)
Authors: Thomas V. 
Published: August 2010

AbstractStructure and biology of floral nectaries in Allamanda were studied. Disc nectary present around the ovary was found to be five lobed, and differentiated into epidermis, secretory zone and sub secretory zone. Nectary traversed by vasculature, possesses both xylem and phloem. The nectar is coming out through stomata and it contains an equal concentration of glucose and fructose. The major visitors to suck nectar are wasp and ants.
Taxonomy and evolution of cultivated plants: Literature review 1989/1990
Authors: Hanelt P. , Fritsch R. , Hammer K. , Kruse J. , Maass H. I. , Ohle H. , Pistrick P. 
Published: August 2010

AbstractImportant papers on taxonomy and evolution of cultivated plants and relatives published in 1989 and 1990 have been compiled and shortly reviewed.
Morphology of 2‐armed trichomes in relation to taxonomy: Malpighiales
Authors: Rao S. Raja Shanmukha , Sarma Vijayalakshmi 
Published: August 2010

AbstractThe structure, distribution and taxonomic importance of trichomes in the Malpighiaceae have been reported. The development of well known malpighian hair (unicellular 2‐armed T‐shaped hair) has been reported in detail. The trichome evidence clearly suggests that the Malpighiaceae appears to be closely placed to Vochysiaceae and Trigoniaceae rather than to the other Geraniales (sensu lato) and Polygalales and lends support for their placement in a separate ordinal rank Malpighiales (excluding Polygalaceae).
Osmoregulatory effect in some metabolites in response to salinity in Atriplex halimus var. schweinfurthii (Chenopodiaceae) With 4 Figures and one Table
Authors: Sadek L. A. 
Published: August 2010

AbstractThe present work was conducted to elucidate the biochemical adaptation, and revealed that some of the parameters used serve as good indicators of salinity tolerance and drought resistant in Atriplex halimus L. var. schweinfurthii which distributed in the Mediterranean desert of Egypt. The growth of these plants was not affected by salinity. The metabolic role in osmoregulation is achieved through the accumulation of minerals and proline. Salt stress stimulates the accumulation of all these metabolic products. These accumulation decreased rapidly in plants transferred back to control medium.As suggested for other xerophytic species, it could be assumed that the high tolerance of A. halimus to salinity plays an important role in its ability to endure periods of drought. The role of mineral nutrients and proline accumulation in osmoregulation was discussed.
Juniperus SabinaLINNAEUS im Jura sowie deren Gesamtverbreitung, speziell im Bereich des europäischen Alpenbogens
Authors: Fuchs‐Eckert H. P. 
Published: August 2010

AbstractIm Zusammenhang mit dem relativ reichen Vorkommen des Sade‐Baums im oberen Teil des Formazza‐Tals (Prov. Novara, Italien), das vom Autor seit mehr als 40 Jahren untersucht wird, hat es sich mittlerweile als notwendig ergeben, diese Lokalitäten in einem größeren phytogeographischen Kontext zu sehen. Besondere Aufmerksamkeit wurde dem einzigen Original‐Fundort im Jura‐Gebirge (Kanton Solothurn, Schweiz) und der Geschichte seiner Entdeckung gewidmet. Von Bedeutung ist ferner die Frage seines einheimischen sowie punktförmigen Vorkommens im allgemeinen und die Verbreitung des Taxons von der Iberischen Halbinsel bis in das östliche Zentralasien bei gleichzeitig detaillierterer Information über das Auftreten der Art im europäischen Alpenbogen zwischen den Seealpen im Westen zum Karst im Osten.
Electrophoretic analysis of the seed proteins of some species in genus Lotus With 4 Figures and one Table
Authors: Sammour R. H. , Hamoud M. A. , Haidar A. S. , Badr A. 
Published: August 2010

AbstractThe seed proteins of a number of accessions of L. corniculatus, L. creticus, L. halophilus, L. polyphyllos, and L. peregrinus were electrophoretically analysed on SDS‐PAGE. The majority of the seed proteins of these species is legumin‐like protein. Although each species showed a distinctive electrophoretic pattern, there was electrophoretic variations between the accessions of L. corniculatus, L. creticus and L. halophilus. These variations were discussed in terms of the morphological and cytological features. Cluster analysis showed that L. halophilus stand apart from the other species and L. creticus and L. polyphyllos are the closest one.