نتایج جستجو برای: herbaria
تعداد نتایج: 388 فیلتر نتایج به سال:
Summary This paper provides a linear classification of two subfamilies, 24 tribes, 10 subtribes and 95 genera the monocot family Cyperaceae (Poales), based on stable phylogenetic framework resulting from years morphological, molecular phylogenomic studies. The includes c. 5687 species. most species-rich tribes are monogeneric tribe Cariceae with 2003 species, Cypereae 1131 highest generic diver...
Abstract. The Pteridaceae is one of the most diverse families ferns, with representatives adapted to habitats ranging from aquatic dry environments. It species-rich family ferns in Brazilian Cerrado, although it still poorly known some areas this domain Maranhão state. Our objective was investigate diversity Cerrado remnants Maranhão. We based our study on morphological an...
Abstract Here we present a taxonomic treatment of the subfamily Celastroideae (Celastraceae) in state Espírito Santo, southeastern Brazil, as part ongoing project Flora do Santo. The work is based on analyses herbaria specimens and fieldwork since 2012. Two genera thirteen species are reported for covering all vegetation formations found state. Celastrus represented by one species, C. liebmanni...
The digitization of herbaria and their online access will greatly facilitate access to plant collections around the world. This will improve the efficiency of taxonomy and help reduce inequalities between scientists. The Botanic Garden Meise, Belgium, is currently digitizing 1.2 million specimens including label data. In this paper we describe the user requirements analysis conducted for a new ...
New species of Begonia L. in the flora Laos presented this paper were mainly found course botanical surveys made Hin Nam No National Protected Area, Phouy Khammouane Karst Forest, and Phou Khao Khouay Area.Additionally, herbaria presently available (HNL, FOF, NUoL, FRC), living plants, alcohol preserved material at Pha Tad Ke Botanical Garden data accessible online BM, E, K, LE, NY, P, PE Herba...
Introduction Pharmacy and medicine belong to the oldest human activities, so the development of these sciences is closely related to the socio-economic, cultural and religious opportunities of the nations within which they have been developing. Goals To present the historical influence of pharmacy on the development of the human being from its very beginning; To present the historical link be...
Four asclepiadaceous types not listed in a previous type catalogue of the collections of the Instituto de Ecología y Sistemática, Habana, Cuba (HAC) are provided, along with a discussion of typification problems associated with the associated Charles Wright collections. Lectotypifications are provided for Gonolobus stephanotrichus Griseb., Orthosia acuminata Griseb., Orthosia oblongata Griseb.,...
BACKGROUND AND AIMS The hypothesis of an ancient introduction, i.e. archaeophyte origin, is one of the most challenging questions in phylogeography. Arundo donax (Poaceae) is currently considered to be one of the worst invasive species globally, but it has also been widely utilzed by man across Eurasia for millennia. Despite a lack of phylogenetic data, recent literature has often speculated on...
We describe a working computer vision system that aids in the identification of plant species. A user photographs an isolated leaf on a blank background, and the system extracts the leaf shape and matches it to the shape of leaves of known species. In a few seconds, the system displays the top matching species, along with textual descriptions and additional images. This system is currently in u...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید