scholarly journals Annotated catalogue of the flowering plants of São Tomé and Príncipe

Bothalia ◽  
2011 ◽  
Vol 41 (1) ◽  
pp. 41-82 ◽  
Author(s):  
E. Figueiredo ◽  
J. Paiva ◽  
T. Stévart ◽  
F. Oliveira ◽  
G. F. Smith

A catalogue of the flowering plants of the islands of São Tomé and Príncipe (Gulf of Guinea) is presented. Flowering plant diversity figures are updated to: 135 families (20 introduced), 624 genera (172 introduced), 1 104 species (301 introduced) plus 15 additional infraspecific taxa. At present 119 taxa (107 species and 12 infraspecific taxa) are known to be endemic to the two islands. The catalogue includes accepted names, synonyms used in recent literature, common names, voucher specimens and information on habit and habitat and on plant uses, particularly medicinally.

2018 ◽  
Vol 30 ◽  
pp. 55-84
Author(s):  
Prabin Bhandari ◽  
Shanta Budhamagar ◽  
Krishna K. Shrestha

Panchase Protected Forest (PPF), situated at the junction of three districts Kaski, Syangjaand Parbat with an elevation range of 900-2517m representing mid hills of Nepal. This study was carried out with an aim of documenting the flowering plant diversity of the Panchase Protected Forest, Kaski district, comprising three VDCs, Bhadaure Tamage, Chapakot and Pumdi Bhumdi. General survey, covering all seasons was organized (from June 2014 to May2015) for collecting the plant species. Published literatures and herbarium specimens were also consulted for documenting the species. Identification of the collected specimens was made through consulting relevant literatures, herbarium specimens and expert consultation. A total of 613 species belonging to 393 genera and 111 families have been documented from this area. The dominant family was Orchidaceae (49 genera and 125 species) followed by Poaceae (25 spp.), Asteraceae (25 spp.) and others. Six endemic plants, Begonia flagellaris (Begoniaceae), Eria pokharensis, Gastrochilus nepalensis, Oberonia nepalensis, Odontochilusnandae and Panisea panchaseensis (Orchidaceae) were also reported. Similarly, presentresearch revealed two taxa as new record for flora of Nepal, Dischidia bengalensis Colebr. (Apocynaceae) and Phreatia elegans Lindl. (Orchidaceae). The present findings suggest that PPF is one of the hotspot for floral diversity representing mid hills of Nepal and this pristine habitat for orchid should be developed as ‘Orchid Sanctuary’.


Author(s):  
Luis MP Ceríaco ◽  
Ana Lisette Arellano ◽  
Robert C Jadin ◽  
Mariana P Marques ◽  
Diogo Parrinha ◽  
...  

Author(s):  
Stefan A. Rensing ◽  
Dolf Weijers

AbstractThe seeds of flowering plants are sexually produced propagules that ensure dispersal and resilience of the next generation. Seeds harbor embryos, three dimensional structures that are often miniatures of the adult plant in terms of general structure and primordial organs. In addition, embryos contain the meristems that give rise to post-embryonically generated structures. However common, flowering plant embryos are an evolutionary derived state. Flowering plants are part of a much larger group of embryo-bearing plants, aptly termed Embryophyta. A key question is what evolutionary trajectory led to the emergence of flowering plant embryos. In this opinion, we deconstruct the flowering plant embryo and describe the current state of knowledge of embryos in other plant lineages. While we are far yet from understanding the ancestral state of plant embryogenesis, we argue what current knowledge may suggest and how the knowledge gaps may be closed.


In 2020 Cabo Verde (1557 sq. miles) and São Tomé and Príncipe (621 sq. miles) had a resident population of 556,857 and 210,240 respectively. Both archipelagos were uninhabited when they were settled by Portuguese colonists and African slaves in the second half of the 15th century. The coexistence of Europeans and Africans resulted in the emergence of Creole societies. Due to their differences in geographic position and climate, they developed unequally in economic terms. Santiago, the first of the Cabo Verde Islands to be settled, became a commercial hub for the slave trade from the Upper Guinea coast. São Tomé was also engaged in the slave trade, but in the 16th century established the first tropical plantation economy based on sugar and slave labor. In the 17th century, both archipelagos were affected by economic and demographic decline. Economic recovery did not occur before the mid-19th century. The British established a coal supply station for transatlantic steam shipping in São Vicente, while, enabled by the introduction of coffee and cocoa, the Portuguese reestablished the plantation economy in São Tomé and Príncipe. After the abolition of slavery in 1875 the workforce was composed of contract workers from Angola, Cabo Verde, and Mozambique. As a result, São Tomé and Príncipe became marked by immigration for almost a century. In contrast, pushed by famines and misery, a massive emigration from Cabo Verde began in the 19th century, a feature that has marked the archipelago’s society and identity until the early 21st century. The first anticolonial groups in exile appeared in the late 1950s. An armed liberation struggle in the islands was not possible; however, a group of Cabo Verdeans participated in the armed struggle in Portuguese Guinea. Most prominent among them was Amílcar Cabral (b. 1924–d. 1973). After independence in 1975 the two countries became socialist one-party regimes. In 1990 both archipelagos introduced multiparty democracies with semipresidential regimes. Creole communities also developed in the Gulf of Guinea islands of Bioko (779 square miles) and Annobón (6.5 sq. miles), which belonged to Portugal until 1778 when they became part of Spanish Guinea which subsequently, in 1968, gained independence as Equatorial Guinea. In the 16th century the uninhabited island of Annobón was settled by the Portuguese with African slaves. As a result, the island’s early-21st-century 5,300 inhabitants speak a Portuguese-based Creole, Fá d’Ambó. Bioko (Fernando Po), was the only Gulf of Guinea Island with a native population, the Bubi, and therefore the Portuguese never colonized this island. From 1827–1843 the British navy maintained an antislaving station called Port Clarence (modern Malabo) in Fernando Po. The British recruited workers from Freetown in Sierra Leone, which was the beginning of the development of the Fernandinos, a local Creole community that speaks an English-based Creole language known as Pichi, which is closely related to Krio in Sierra Leone. Currently, there are still about thirty Fernandino families, comprising some 350 people; however, Pichi is spoken by an estimated 150,000 people, since it also became Bioko’s lingua franca spoken by the Bubi majority.


2016 ◽  
Vol 8 (1) ◽  
pp. 42 ◽  
Author(s):  
Bridget O. Bobadoye ◽  
Paul N. Ndegwa ◽  
Lucy Irungu ◽  
Fombong Ayuka ◽  
Robert Kajobe

A vast majority of insects visit flowers for food, generally termed as floral rewards. Detailed insights on flowering phenology of plants could give a hint of habitat status and the extent to which such landscapes could support insect pollinators to render both direct and indirect ecosystem services. This study monitored flowering plants which could potentially provide both pollen and nectar sources to four African meliponine bee species (Apidae: Meliponini) naturally occurring in six diverse habitat gradients of the eastern arc mountains (Taita hills) of Kenya. Blooming sequences of identified flowering plants overlapped across seasons with approximately 80 different plant species belonging to 34 families recorded, with the highest proportions from Fabaceae and Asteraceae families dominating flowering plants that were visited (67% of the visits).  A flowering calendar is presented to indicate the phenological pattern of all identified floral resources.  Hypotrigona gribodoi being the most abundant species had the highest visitation rates on plants belonging to Fabaceae and Asteraceae families, followed by Meliponula ferruginea (black), Plebeina hildebrandti and Hypotrigona ruspolii. This indicates that such fragile habitat could invariably sustain nutritional requirements essential for the survival of insect pollinators such as native meliponine bee species, though bee abundance at flowers did not significantly correlate to food availability (expressed by flowering plant richness).


2021 ◽  
Author(s):  
William J. Baker ◽  
Paul Bailey ◽  
Vanessa Barber ◽  
Abigail Barker ◽  
Sidonie Bellot ◽  
...  

AbstractThe tree of life is the fundamental biological roadmap for navigating the evolution and properties of life on Earth, and yet remains largely unknown. Even angiosperms (flowering plants) are fraught with data gaps, despite their critical role in sustaining terrestrial life. Today, high-throughput sequencing promises to significantly deepen our understanding of evolutionary relationships. Here, we describe a comprehensive phylogenomic platform for exploring the angiosperm tree of life, comprising a set of open tools and data based on the 353 nuclear genes targeted by the universal Angiosperms353 sequence capture probes. This paper (i) documents our methods, (ii) describes our first data release and (iii) presents a novel open data portal, the Kew Tree of Life Explorer (https://treeoflife.kew.org). We aim to generate novel target sequence capture data for all genera of flowering plants, exploiting natural history collections such as herbarium specimens, and augment it with mined public data. Our first data release, described here, is the most extensive nuclear phylogenomic dataset for angiosperms to date, comprising 3,099 samples validated by DNA barcode and phylogenetic tests, representing all 64 orders, 404 families (96%) and 2,333 genera (17%). Using the multi-species coalescent, we inferred a “first pass” angiosperm tree of life from the data, which totalled 824,878 sequences, 489,086,049 base pairs, and 532,260 alignment columns. The tree is strongly supported and highly congruent with existing taxonomy, while challenging numerous hypothesized relationships among orders and placing many genera for the first time. The validated dataset, species tree and all intermediates are openly accessible via the Kew Tree of Life Explorer. This major milestone towards a complete tree of life for all flowering plant species opens doors to a highly integrated future for angiosperm phylogenomics through the systematic sequencing of standardised nuclear markers. Our approach has the potential to serve as a much-needed bridge between the growing movement to sequence the genomes of all life on Earth and the vast phylogenomic potential of the world’s natural history collections.


2016 ◽  
Vol 23 (2) ◽  
pp. 89-102
Author(s):  
Kuldeep Negi ◽  
Vandana Tiwari ◽  
Puran Mehta ◽  
Rajni Rawat ◽  
Saraswati Ojha ◽  
...  

Uttarakhand is a store house of plant genetic resources of several crop groups including ornamentals and seasonal flowering plant species. A wide range of seasonal flowering plants are being grown in the region because of its various and favourable agro-geo climatic zones. Ornamental plant enhances aesthetic value of our environment. There are 8 developmental blocks and 1082 villages in district Nainital of Uttarakhand. Nainital district, is a part of Kumaun region of Uttarakhand. It lies between 29?0.1' to 29?36' 21'' N latitude and 78?50' 53'' to 80?06' E longitude. More than 7.62 lakh population reside in 4064 km2 of geographical area of district Nainital. The district falls under sub-tropical to temperate zones. During the course of field survey (2013-2015), we came across wide range of seasonal flowering plants mostly belong to exotic origin being grown in the home gardens of natives of the region situated in different agro-ecological niches. The present study highlighted a total of 150 seasonal flowering plants with 120 genera belonging to 50 families. These were arranged alphabetically with botanical names followed by vernacular and trade name, family, origin or native place, nature, season with appropriate remarks of variation in shape, size and colour, method of propagation with economic status.


2020 ◽  
Vol 43 (4) ◽  
pp. 328-340
Author(s):  
Paradesi Anjaneyulu ◽  
◽  
Boyina Ravi Prasad Rao ◽  

A total of 258 angiosperm taxa representing 75 families were evaluated as potential wild ornamentals in Andhra Pradesh, out of the total 845 wild ornamental taxa recorded from a five-year field study. The largest family is Fabaceae with 23 species and the largest genus is Ficus with nine species. Present paper deals with the critical analysis and systematic enumeration of all the 258 taxa in a tabulated form with their botanical names, habitat, habit form, ornamental category, longevity, district-wise distribution and voucher specimens.


Bothalia ◽  
2010 ◽  
Vol 40 (2) ◽  
pp. 205-218 ◽  
Author(s):  
M. E. Daemane ◽  
B-E. Van Wyk ◽  
A. Moteetee

A list of flowering plants and ferns has been compiled for the Golden Gate Highlands National Park, which occupies an area of 11 346 hectares but excludes the adjacent QwaQwa National Park. The checklist comprises 846 taxa (823 species and 23 infraspecific taxa) representing 359 genera in 101 families. Eleven of the species are recorded in the Red Data List (Raimondo et al. 2010) and 64 species are naturalized exotics.


1963 ◽  
Vol 43 (3) ◽  
pp. 386-389 ◽  
Author(s):  
Dale Smith

Flowering response of first-year individual plants of nine varieties of red clover was studied at Arlington, Wisconsin. Plant populations of varieties with high winterhardiness had high percentages of non-flowering plants. Winterkilling of plant types increased progressively from non-flowering Type 1 to profuse flowering Type 5.Highly significant correlations were obtained between per cent winterkilling during the first winter with per cent non-flowering plant Type 1 (r = −0.90 and −0.95 during 2 years), per cent of flowering plant Type 5 (r = +0.92 and +0.80), and the total per cent of non-flowering plants (r = −0.90 and −0.94). Flowering response can be used with a high degree of reliability in establishing the probable persistence of new strains relative to standard varieties and as a selection criterion for hardy plants.


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