scholarly journals From Thorne to APG IV: Reorganization of the Digital and Physical Collections of the Rancho Santa Ana Botanic Garden Herbarium

2018 ◽  
Vol 2 ◽  
pp. e25768
Author(s):  
Mare Nazaire
Keyword(s):  
Classification System ◽  
Vascular Plant ◽  
Botanic Garden ◽  
Plant Geography ◽  
Angiosperm Phylogeny ◽  
Santa Ana ◽  
Pomona College ◽  
Major Shift ◽  
Plant Families ◽  
Complete Overhaul

Since the mid 1960’s, the combined herbaria of Rancho Santa Ana Botanic Garden [RSA] and Pomona College [POM] have followed the classification system of Taxonomist and Curator, Dr. Robert F. Thorne (1920-2015). Thorne, whose research interests were largely centered on floristics and plant geography, is best known for his synoptic work to develop a classification system to accommodate all flowering plants. Nevertheless, Thorne was a strong proponent of an alphabetical arrangement of herbaria, and organized the RSA-POM collection accordingly. The last time the RSA-POM Herbarium experienced a major shift in the arrangement of its collection was nearly 20 years ago. Since that time, many outdated families that are no longer recognized – of which Thorne had recognized in his system of classification – have remained in the collection. Over the last two years, the RSA-POM Herbarium has been actively reorganizing both its digital and physical collections to follow the vascular plant families of the newest classification system, the Angiosperm Phylogeny Group (APG IV). Reorganization began with a complete overhaul of the herbarium’s database followed by curation of the physical collection. This presentation highlights the efforts in curating the digital and physical collections of the RSA-POM Herbarium, perspectives on collection reorganization, as well as challenges and limitations.

scholarly journals Changing to APG II :

2008 ◽  
pp. 133-153
Author(s):  
Janette Latta
Keyword(s):  
Classification System ◽  
Royal Botanic Garden ◽  
Botanic Garden ◽  
Science Division ◽  
Angiosperm Phylogeny ◽  
New Family

In the summer of 2006, the Science Division at the Royal Botanic Garden Edinburgh made the decision to change the classification system used in their collections of pressed and preserved plants from the modified Bentham and Hooker system to that published by the Angiosperm Phylogeny Group (APG). As a result of that decision the Horticulture Division also decided to change its records and plant labels to the APG system. This paper describes the effect this had on the work of staff in both the Science and Horticulture Divisions as their collections had to be reorganized and relabelled to show the new family orders.

Plant diversity of Ghorkhod Protected Area, NE Iran

Phytotaxa ◽  
2016 ◽  
Vol 249 (1) ◽  
pp. 118 ◽  
Author(s):  
FARSHID MEMARIANI ◽  
MOHAMMAD REZA JOHARCHI ◽  
HOSSEIN AKHANI
Keyword(s):  
Plant Species ◽  
Protected Area ◽  
Life Form ◽  
Vascular Plant ◽  
Floristic Composition ◽  
Transitional Zone ◽  
Plant Groups ◽  
Wide Range ◽  
Plant Families ◽  
Ne Iran

Ghorkhod Protected Area (GPA) is located in a transitional zone among different biogeographical units in North Khorassan Province, NE Iran. The study area is mainly a mountainous region in western extensions of Khorassan-Kopet Dagh floristic province. We investigated the floristic composition, life form spectrum and phytogeography of the study area through several random collection efforts and 200 vegetation samples (reléves) in selected vegetation types during 2007–2012. A total of 663 vascular plant species belonging to 367 genera and 81 families are recorded as native and naturalized in GPA. Angiosperms and Dicots are among the most diverse plant groups. The richest plant families are Asteraceae (88 species), Poaceae (78), Lamiaceae (45), Brassicaceae (43), Fabaceae (38), and Caryophyllaceae (32). The genera Allium L. (17 species), Astragalus L. (15) and Cousinia Cass. (12) are the richest ones, however, the majority of the species belongs to oligotypic and monotypic genera. Life form spectrum of the study area is dominated by hemicryptophytes (38.9%) and therophytes (23.4%). Allium transvestiens Vved., Agropyron desertorum Schult., Helictotrichon turcomanicum Czopanov and Piptatherum latifolium (Roshev.) Nevski are recorded as new to Iran. The core flora of the area has the Irano-Turanian origin. However, the wide-range and widespread elements are also well represented in the study area. GPA is inhabited by several endemic, rare and narrow-range plant species, indicating the biodiversity importance of the study area in NE Iran.

scholarly journals Floristic composition and phytodiversity status of Sitakunda Ecopark, Chittagong, Bangladesh

2016 ◽  
Vol 5 (1) ◽  
pp. 29-45 ◽  
Author(s):  
Md Anwarul Islam ◽  
Mohammad Mahfuzur Rahman ◽  
Gazi Mosharof Hossain
Keyword(s):  
Species Composition ◽  
Plant Species ◽  
Monsoon Season ◽  
Vascular Plant ◽  
Floristic Composition ◽  
Diversity Indices ◽  
Vascular Plant Species ◽  
Plant Groups ◽  
Plant Families

The present study dealt with the exploration and documentation of the floristic composition and phyto-diversity of Sitakunda Eco-park, Chittagong, Bangladesh. A total of 412 vascular plant species under 315 genera belonging to 94 plant families have been recorded from the study area during February, 2013 to April, 2015. Out of these recorded taxa, 330 were dicotyledons, 62 were monocotyledons, 5 were gymnosperms and 15 were pteridophytes. Among those, the maximum 144 species belonged to herbs followed by 138, 75 and 55 species as trees, shrubs and climbers, respectively. The species composition among the plant families varied in plant groups. In dicotyledonous group, Euphorbiaceae appeared to be the largest family with 35 species, whereas Poaceae showed the largest family containing 30 species among monocotyledonous group. The highest values of both Shannon-Weiner and Simpson diversity indices have been observed as 3.82 and 0.98, respectively to site D during monsoon season, whereas the lowest values 3.19 and 0.95, respectively of these indices were recorded in site A during summer season.Jahangirnagar University J. Biol. Sci. 5(1): 29-45, 2016 (June)

Study on diversity of vascular plant and classification system of vegetation in wetlands of Anhui Province

2014 ◽  
Vol 34 (19) ◽  
Author(s):  
刘坤 LIU Kun ◽  
戴俊贤 DAI Junxian ◽  
唐成丰 TANG Chengfeng ◽  
王立龙 WANG Lilong ◽  
顾长明 GU Changming ◽  
...  
Keyword(s):  
Classification System ◽  
Vascular Plant ◽  
Anhui Province

scholarly journals The role of the Francisco Javier Clavijero Botanic Garden (Xalapa, Veracruz, Mexico) in the conservation of the Mexican flora

2021 ◽  
Author(s):  
Milton Díaz-Toribio ◽  
Victor Luna ◽  
Andrew Vovides
Keyword(s):  
Plant Species ◽  
Threatened Species ◽  
Cloud Forest ◽  
Vascular Plant ◽  
Plant Conservation ◽  
Ex Situ ◽  
Botanic Gardens ◽  
Botanic Garden ◽  
Threatened Plant ◽  
Threatened Plant Species

Background and Aims: There are approximately 3000 botanic gardens in the world. These institutions cultivate approximately six million plant species, representing around 100,000 taxa in cultivation. Botanic gardens make an important contribution to ex situ conservation with a high number of threatened plant species represented in their collections. To show how the Francisco Javier Clavijero Botanic Garden (JBC) contributes to the conservation of Mexican flora, we asked the following questions: 1) How is vascular plant diversity currently conserved in the JBC?, 2) How well is this garden performing with respect to the Global Strategy for Plant Conservation (GSPC) and the Mexican Strategy for Plant Conservation (MSPC)?, and 3) How has the garden’s scientific collection contributed to the creation of new knowledge (description of new plant species)?Methods: We used data from the JBC scientific living collection stored in BG-BASE. We gathered information on species names, endemism, and endangered status, according to national and international policies, and field data associated with each species. Key results: We found that 12% of the species in the JBC collection is under some risk category by international and Mexican laws. Plant families with the highest numbers of threatened species were Zamiaceae, Orchidaceae, Arecaceae, and Asparagaceae. We also found that Ostrya mexicana, Tapirira mexicana, Oreopanax capitatus, O. echinops, and O. xalapensis are highly threatened species representative of cloud forest currently in the collection. Conclusions: The conservation and scientific utility of the JBC collection is reflected in the exceptional accession data and the description of 24 new plant species. Having a significant number of threatened plant species in its ex situ collection, the JBC contributes to the implementation of the GSPC, particularly Target 8, as well as the implementation of the MSPC.

Modern views on phylogeny and systematic position of the genus Muscari (Asparagaceae) Miller

2020 ◽  
Vol 12 (2) ◽  
pp. 312-318
Author(s):  
Svitlana Boychuk ◽  
Vasyl Budzhak
Keyword(s):  
Phylogenetic Relationships ◽  
Critical Analysis ◽  
Molecular Data ◽  
Systematic Position ◽  
Modern Concept ◽  
Angiosperm Phylogeny ◽  
Phylogenetic Status ◽  
The World ◽  
Molecular Phylogenetic ◽  
Plant Families

Systematic and phylogenetic status of Muscari – valuable ornamental and melliferous genus of flowering plants, still unclear despite numerous explorations. Therefore, the aim of the work was to carry out a critical analysis of publications devoted to phylogeny and taxonomy of the genus Muscari and to clarify its taxonomic position. The article provides a brief overview of the main publications dedicate to phylogeny and taxonomy of the genus. The systematic position of the genus Muscari in the early phylogenetic systems, taxonomic systems of the XX century and modern molecular phylogenetic systems is observed. Modern phylogenetic systems developed by Angiosperm Phylogeny Group (APG III, APG IV) and based on DNA sequence analysis. They show that Muscari belongs to the subfamily Scilloideae, family Asparagaceae s.l., order Asparagales, clusters Monocots. Phylogenetic relationships within the genus Muscari is difficult and controversial. In general, there are two main concepts of the genus Muscari division into subgenus. The first was developed by F. Speta in 1999 and is based on molecular data. In it, the genus is considered in a broad sense (s.l.), and divided into 4 subgenera: Muscari, Leopoldia, Muscarimia and Pseudomuscari. The second, more modern concept was developed by R. Govaerts and presented in the «World Checklist of selected plant families». According R. Govaerts, Muscari is divided into 3 separate genera: Muscari s.str. (=Muscarimia, Botryanthus), Leopoldia and Pseudomuscari. Paleobotanical data analysis established that the ancestral forms of modern Muscari originated approximately 3,29 million BC in the Mediterranean and spread to other regions of the world. The closest phylogenetic relatives of Muscari are the genera Scilla and Bellevalia. Chouardia and Nectaroscilla are also highly related. Comprehensive studies of morphological, biogeographical, molecular and other peculiarities of critical taxa are needed to clarification of the systematic position and phylogenetic relationships within the genus Muscari.

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