scholarly journals Architectural Pattern: Study of orchid architecture using tools to take quick measurements of virtual specimens

Author(s):  
Aurore Gourraud ◽  
Régine Vignes Lebbe ◽  
Adeline Kerner ◽  
Marc Pignal

The joint use of two tools applied to plant description, XPER3 and Recolnat Annotate, made it possible to study vegetative architectural patterns (Fig. 1) of the Dendrobium (Orchidaceae) in New Caledonia defined by N. Hallé (1977). This approach is not directly related to taxonomy, but to the definition of sets of species grouped according to a growth pattern. In the course of this work, the characters stated by N. Hallé were analysed and eventually amended to produce a data matrix and generate an identification key. Study materials: Dendrobium Sw. in New Caledonia New Caledonia is an archipelago in the Pacific Ocean, a French overseas territory located east of Australia. It is one of the 36 biodiversity hotspots in the world. The genus Dendrobium Sw. sensu lato is one of the largest in the family Orchidaceae and contains over 1220 species. In New Caledonia, it includes 46 species. In his revision of the family, N. Hallé (1977) defined 14 architectural groups, into which he divided the 31 species known at that time. These models are based on those defined by F. Hallé and Oldeman (1970). But they are clearly intended to group species together for identification purposes. Architectural pattern: A pattern is a set of vegetative or reproductive characters that define the general shape of an individual. Developed by mechanisms linked to the dominance of the terminal buds, the architectural groups are differentiated by the arrangement of the leaves, the position of the inflorescences or the shape of the stem (Fig. 1). Plants obeying a given pattern do not necessarily have phylogenetic relationships. These models have a useful application in the field for identifying groups of plants. Monocotyledonous plants, and in particular the Orchidaceae, lend themselves well to this approach, which produces stable architectural patterns. Recolnat Annotate Recolnat Annotate is a free tool for observing qualitative features and making physical measurements (angle, length, area) of images. It can be used offline and downloaded from https://www.recolnat.org/en/annotate. The software is based on the setting up observation projects that group together a batch of herbarium images to be studied, associating it with a descriptive model. A file of measurements can be exported in comma separated value (csv) format for further analysis (Fig. 2). XPER3 Usually used in the context of systematics in which the items studied are taxa, XPER3 can also be used to distinguish architectural groups that are not phylogenetically related. Developed by the Laboratoire d'Informatique et Systématique (LIS) of the Institut de Systématique, Evolution, Biodiversité in Paris, XPER3 is an online collaborative platform that allows the editing of descriptive data (https://www.xper3.fr/?language=en). This tool allows the cross-referencing of items (in this case architectural groups) and descriptors (or characters). It allows the development of free access identification keys (it means without fixed sequence of identification steps). The latter can be used directly online. But it also offers to produce single-access keys, with or without using character weighting and dependencies between characters. Links between XPER3 and Recolnat Annotate The descriptive model used by Recolnat Annotate can be developed within the framework of XPER3, which provides for characters and character states. Thus the observations made by the Recolnat Annotate measurement tool can be integrated into the XPER3 platform. Specimens can then be compared, or several descriptions can be merged to express the description of a species (Fig. 3). RESULTS The joint use of XPER3 and Recolnat Annotate to manage both herbarium specimens and architectural patterns has proven to be relevant. Moreover, the measurements on the virtual specimens are fast and reliable. N. Hallé (1977) had produced a dichotomous single-accesskey that allowed the identification and attribution of a pattern to a plant observed in the field or in a herbarium. The project to build a polytomous and interactive key with XPER3 required completing the observations to give a status for each character of each vegetative architectural model. Recolnat Annotate was used to produce observations from herbarium network in France. The use of XPER3 has allowed us to redefine these models in the light of new data from the herbaria and to publish the interactive key available at dendrobium-nc.identificationkey.org.

2007 ◽  
Vol 85 (8) ◽  
pp. 691-700 ◽  
Author(s):  
Jean M. Gerrath ◽  
Usher Posluszny

This paper examines the question of how the unique shoot architectural pattern of the Vitaceae, typically with leaf-opposed tendrils or inflorescences in a three-node modular repetitive pattern, can be related to the traditional concepts of monopodial and sympodial shoot development. Based on complete comparative morphological developmental studies of 13 species in six genera, supplemented with observations of 21 other taxa, we have found five shoot architectural patterns in the family. The pattern of shoot architecture is consistent within a species, but there may be more than one pattern present within a genus. Species that lack tendrils, thus exhibiting pattern 1, show sympodial growth. Taxa exhibiting patterns 2, 3, and 4, with tendrils at two of three nodes and with progressively one, two, or three axillary buds within the three-node cycle, grow monopodially, and taxa that exhibit pattern 5, with both tendrils and axillary buds at every node, achieve the pattern via either monopodial or sympodial growth, depending on the species. Although rare in the Vitaceae, pattern 1 is the only one shared with the sister family Leeaceae. We conclude that this was the original shoot architectural pattern, and that the monopodial pattern present in most species today is derived, and unique to the Vitaceae.


2021 ◽  
pp. 106648072110230
Author(s):  
Çiğdem Yavuz Güler

Objective: According to the family systems theory, triangulation is defined as reflecting and conveying the tension between two individuals to a third individual to reduce the existing tension, stress, and anxiety. This study was conducted to adapt the “Triangular Relationship Inventory” to Turkish and to assess psychometric properties. Method: The sample of the study included 337 individuals (234 women and 103 men) aged between 18 and 25 years. The structure validity of the inventory was evaluated with the confirmatory factor analysis and reliability was evaluated with Chronbach's alpha internal consistency coefficient, test–retest method, and item analyses. Results: The result showed that the Turkish form of the Triangular Relationship Inventory showed similar psychometric properties to the original inventory. The structure which consists of the balanced, mediator, cross-generational coalition, and scapegoat subdimensions of 24 items displayed acceptable goodness-of-fit values in the Turkish sample with the 0.91 Cronbach's alpha coefficient while the reliability values of the subdimensions changed between 0.86 and 0.91. Considering the convergent validity of the inventory, there was a negative correlation between the triangular relationship and satisfaction with life and the differentiation of self, and a significant positive correlation with depression, anxiety, and stress. Conclusion: The psychometric properties revealed in this study show that the Turkish form of the Triangular Relationship Inventory is a valid and reliable measurement tool that can be used to measure the triangulation levels and roles of the individuals, who are in the Turkish sample and between the ages of 18 and 25 years, within the family system.


1987 ◽  
Vol 65 (3) ◽  
pp. 691-707 ◽  
Author(s):  
A. F. L. Nemec ◽  
R. O. Brinkhurst

A data matrix of 23 generic or subgeneric taxa versus 24 characters and a shorter matrix of 15 characters were analyzed by means of ordination, cluster analyses, parsimony, and compatibility methods (the last two of which are phylogenetic tree reconstruction methods) and the results were compared inter alia and with traditional methods. Various measures of fit for evaluating the parsimony methods were employed. There were few compatible characters in the data set, and much homoplasy, but most analyses separated a group based on Stylaria from the rest of the family, which could then be separated into four groups, recognized here for the first time as tribes (Naidini, Derini, Pristinini, and Chaetogastrini). There was less consistency of results within these groups. Modern methods produced results that do not conflict with traditional groupings. The Jaccard coefficient minimizes the significance of symplesiomorphy and complete linkage avoids chaining effects and corresponds to actual similarities, unlike single or average linkage methods, respectively. Ordination complements cluster analysis. The Wagner parsimony method was superior to the less flexible Camin–Sokal approach and produced better measure of fit statistics. All of the aforementioned methods contain areas susceptible to subjective decisions but, nevertheless, they lead to a complete disclosure of both the methods used and the assumptions made, and facilitate objective hypothesis testing rather than the presentation of conflicting phylogenies based on the different, undisclosed premises of manual approaches.


2017 ◽  
Vol 74 (2) ◽  
pp. 123-139 ◽  
Author(s):  
R. R. Mill ◽  
M. Ruhsam ◽  
P. I. Thomas ◽  
M. F. Gardner ◽  
P. M. Hollingsworth

Araucaria goroensis R.R.Mill & Ruhsam sp. nov., a new monkey puzzle species from New Caledonia, is described and illustrated with photographs from the field and from herbarium specimens. Previously confused with Araucaria muelleri, it is more similar to A. rulei. It is distinguished from the latter species by its larger leaves, microsporophylls without a shouldered base, and shorter female cone bracts. It occurs in a very limited area of south-east New Caledonia, where its existence is threatened by nickel mining. Using the guidelines of the International Union for Conservation of Nature, we propose an assessment of Endangered for the new species and reassess Araucaria muelleri also as Endangered. A key to the seven species in the ‘large-leaved clade’ of New Caledonian species of Araucaria is given. The name Eutassa latifolia de Laub. is synonymised with Araucaria muelleri, and the recent typification of the latter name by Vieillard 1276 is rejected. Detailed reasoning is given for these nomenclatural acts.


Zootaxa ◽  
2013 ◽  
Vol 3619 (1) ◽  
pp. 79-100 ◽  
Author(s):  
C. A.M. REID ◽  
M. BEATSON

Three new species of Chrysomelidae with extraordinary extensions of the male mandibles are described: Scaphodius drehu sp. nov. and S. ferox sp. nov. (Cryptocephalinae), from New Caledonia, and Chaloenus gajah sp. nov. (Galerucinae), from Borneo. Designation of the type species of Chaloenus Westwood, 1861, is clarified. Synonymy of Scaphodius Chapuis, 1874, with Nyetra Baly, 1877, is supported. Four species of Ditropidus Erichson, 1842, described from New Caledonia, but hitherto regarded as nomina nuda, are shown to be available and are placed in Scaphodius: S. aeneus (Fauvel, 1907), comb. nov., S. nitidus (Fauvel, 1907) comb. nov., S. striolatus (Fauvel, 1907) comb. nov., S. sulcatus (Fauvel, 1907) comb. nov. Ditropidus opacicollis Fauvel, 1907, is also transferred to Scaphodius, as S. opacicollis (Fauvel) comb. nov. The genus Ditropidus does not occur onNew Caledonia. Male mandible enlargment in the Chrysomelidae is reviewed: it is common in Cryptocephalinae, but otherwise restricted to a few species of Chrysomelinae, Eumolpinae and Galerucinae. Possible reasons for its distribution in the Chrysomelidae are discussed.


2017 ◽  
Vol 23 (1) ◽  
pp. 17
Author(s):  
Helmy Shoim Pramudyarto ◽  
Armaidy Armawi ◽  
Bagus Riyono

ABSTRACTThe purpose of this study was to determined the leadership of Wawan Yuanda as a village chief in the community empowerment program through brick-making business and its implications for the the family economic resilience and to knew the obstacles faced in implementing community development programs such. This research was a descriptive model of mixed methods or mixed method using concurrent transformative strategies by collecting data at one stage / phase of the study and at the same time to got a description or picture of the social realities that existed in the community which was then used to analyzed the Village Chief of leadership in the community empowerment program and its implications on family economic resilience.The results showed that Wawan Yuanda as the village chief of Tumiyang Village had been successfully doing community empowerment program through making bricks. The success also had implications for villagers revenue thus increasing the economic resilience of the communities involved in the family business of making bricks.ABSTRAKTujuan dari penelitian ini yaitu untuk mengetahui kepemimpinan Wawan Yuanda sebagai kepala desa dalam program pemberdayaan masyarakat melalui usaha pembuatan batu bata serta implikasinya terhadap ketahanan ekonomi keluarga dan untuk mengetahui hambatan yang dihadapi dalam melaksanakan program pemberdayaan masyarakat tersebut..Penelitian ini merupakan penelitian deskriptif dengan pendekatan model metode campuran atau mixed method dengan menggunakan Strategi Transformatif Konkuren dengan mengumpulkan data pada satu tahap/fase penelitian dan pada waktu yang sama untuk mendapatkan deskripsi atau gambaran dari realitas sosial yang ada di masyarakat yang kemudian untuk mengungkap tentang kepemimpinan Kepala Desa dalam program pemberdayaan masyarakat dan implikasinya terhadap ketahanan ekonomi keluarga. Hasil penelitian menunjukkan bahwa Wawan Yuanda selaku Kepala Desa Tumiyang telah berhasil melakukan program pemberdayaan masyarakat melalui usaha batu bata. Keberhasilan tersebut juga berimplikasi terhadap pendapatan masyarakat sehingga meningkatkan ketahanan ekonomi keluarga masyarakat yang terlibat dalam usaha pembuatan batu bata


Author(s):  
Mauro Morassi ◽  
Andrea Nappo ◽  
Antonio Bonfitto

Twelve new species are assigned to the genus Otitoma Jousseaume, 1898 in the family Pseudomelatomidae Morrison, 1966 and herein described: O. hadra sp. nov., O. neocaledonica sp. nov., O. rubiginostoma sp. nov and O. tropispira sp. nov. from New Caledonia; O. boucheti sp. nov., O. nereidum sp. nov. and O. sororcula sp. nov. from the Fiji Islands; O. xantholineata sp. nov. from the Solomon to the Fiji Islands; O. crassivaricosa sp. nov. from Fiji to Hiva Oa Island (Marquesas Archipelago); O. philpoppei sp. nov. from the Philippines but also reported from the Fiji Islands; O. elegans sp. nov. from the Fiji Islands and O. philippinensis sp. nov. from the Philippines. New data on O. carnicolor (Hervier, 1896) are provided. Otitoma mitra (Kilburn, 1986), from Southern Mozambique, is here considered a synonym of O. cyclophora (Deshayes, 1863). Drillia batjanensis Schepman, 1913, previously assigned to the genus Maoritomella Powell, 1942 in the family Borsoniidae Bellardi, 1875, is here assigned to the genus Otitoma. Photographs of the holotype of Drillia batjanensis are provided for the first time. In addition, color photographs of the type specimens of the following species are provided: Drillia kwandangensis Schepman, 1913, D. timorensis Schepman, 1913 and Mitrellatoma mitra Kilburn, 1986.


2021 ◽  
Author(s):  
Gonzalo Giribet ◽  
Kate Sheridan ◽  
Caitlin M. Baker ◽  
Christina J. Painting ◽  
Gregory I. Holwell ◽  
...  

The Opiliones family Neopilionidae is restricted to the terranes of the former temperate Gondwana: South America, Africa, Australia, New Caledonia and New Zealand. Despite decades of morphological study of this unique fauna, it has been difficult reconciling the classic species of the group (some described over a century ago) with recent cladistic morphological work and previous molecular work. Here we attempted to investigate the pattern and timing of diversification of Neopilionidae by sampling across the distribution range of the family and sequencing three markers commonly used in Sanger-based approaches (18S rRNA, 28S rRNA and cytochrome-c oxidase subunit I). We recovered a well-supported and stable clade including Ballarra (an Australian ballarrine) and the Enantiobuninae from South America, Australia, New Caledonia and New Zealand, but excluding Vibone (a ballarrine from South Africa). We further found a division between West and East Gondwana, with the South American Thrasychirus/Thrasychiroides always being sister group to an Australian–Zealandian (i.e. Australia + New Zealand + New Caledonia) clade. Resolution of the Australian–Zealandian taxa was analysis-dependent, but some analyses found Martensopsalis, from New Caledonia, as the sister group to an Australian–New Zealand clade. Likewise, the species from New Zealand formed a clade in some analyses, but Mangatangi often came out as a separate lineage from the remaining species. However, the Australian taxa never constituted a monophyletic group, with Ballarra always segregating from the remaining Australian species, which in turn constituted 1–3 clades, depending on the analysis. Our results identify several generic inconsistencies, including the possibility of Thrasychiroides nested within Thrasychirus, Forsteropsalis being paraphyletic with respect to Pantopsalis, and multiple lineages of Megalopsalis in Australia. In addition, the New Zealand Megalopsalis need generic reassignment: Megalopsalis triascuta will require its own genus and M. turneri is here transferred to Forsteropsalis, as Forsteropsalis turneri (Marples, 1944), comb. nov.


2010 ◽  
Vol 24 (6) ◽  
pp. 573 ◽  
Author(s):  
Guillermo Kuschel ◽  
Richard A. B. Leschen

An overview of the taxa of Rhinorhynchinae (Nemonychidae) is presented. A phylogenetic analysis of the 19 extant genera of the Rhinorhynchinae and one fossil genus from the Lower Cretaceous (Cratomacer Zherikhin & Gratshev), based on 29 characters of adults, larvae and host plant associations, shows three monophyletic groups, treated as tribes (Rhinorhynchini, Mecomacerini and Rhynchitomacerini). Primitive associations are unknown for Rhinorhynchinae and early host use diversification included associations with Ranunculaceae (Nemonyx Redtenbacher), Pinaceae (Cimberis Gozis), Nothofagaceae (Rhynchitomacerini) and Podocarpaceae (Rhinorhynchini). While Mecomacerini diversified on Araucariaceae, within Rhinorhynchini there was a single reversal to Araucariaceae and a shift in Atopomacer Kuschel to Pinaceae. Placement of Cratomacer into Mecomacerini is consistent with geological and molecular data that suggest gymnosperms may have been the primitive hosts for the family. Three new genera are described in Rhinorhynchinae: Araucomacer, gen. nov. (type species A. hirticeps Kuschel) from Chile, Idiomacer, gen. nov. (type species I. basicornis, sp. nov.) from New Caledonia, and Zimmiellus, gen. nov. (type species Z. fronto, sp. nov.) from Queensland, Australia, while Stenomacer Kuschel, stat. nov. from Chile is reinstated from synonymy. Seven species are described as new: Atopomacer grandifurca, sp. nov. from Costa Rica and Panama, A. obrieni, sp. nov. from Mexico, A. panamensis, sp. nov. from Panama, A. pini, sp. nov. from Mexico, A. podocarpi, sp. nov. from Venezuela, Basiliogeus dracrycarpi, sp. nov. from western New Guinea and B. inops, sp. nov. from Queensland. Rhynchitomacer rufus Kuschel is a new junior subjective synonym of R. nigritus Kuschel, syn. nov., R. viridulus Kuschel is a new junior subjective synonym of R. flavus Voss, syn. nov. and Stenomacer fuscus Kuschel is a new junior subjective synonym of S. vernus Kuschel, syn. nov. Keys to genera of Rhinorhynchinae and to species of Atopomacer, Rhynchitomacer and Stenomacer are included. Diagnoses of the three extant subfamilies of Nemonychidae are included.


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