María Natividad Sánchez de Stapf

Universidad de Panamá · Departamento de Botánica

Pleradenophora membranifolia (Müll. Arg.) Esser & A.L. Melo (Euphorbiaceae) was previously only known from central South America (Bolivia, Brazil, and Peru). Our new botanical collections from the seasonal dry forests in Garachiné, Darién Province, Panama increase the distribution of this species to Central America and include the first record of th...

This chapter explores how health affected and conditioned the development of the urban model and the building regulations of the Canal Zone, which also played an essential role in the environmental impact of permanent villages. The relationship between sanitary measures and urban regulations is studied to understand their interplay. The analysis fo...

The forests of the old Canal Zone formed a landscape that, at first glance, gives the impression of being the result of a plan to create green rings around urban areas. However, the reality was quite different. The management of the Canal Zone territory, having been subordinated to the Canal management needs, was under military control. This chapte...

The aim of this chapter is to understand the urban landscaping by analyzing the intent behind the Canal Zone landscaping. In the first place, reference is made to the landscape footprint left by the French at the beginning of the construction of the Canal, to the cultural influences of landscaping developed in the United States, and the role played...

When the Americans arrived in Panama to build the Canal, the modern conception of urban discipline in the United States had emerged from the development of an efficient and orderly city based on the health advances already established in the nineteenth century. Modern planning tools arose, such as zoning and land use planning, which contributed to...

The study initially addresses the characterization through the examination of the plotting, architecture, and landscape of the seven distinct sectors of the Central Clayton study area. This systematized recognition of the site served as the basis for analyzing the heritage value of the built environment and natural landscape. The analysis of the he...

One of the main dilemmas when describing Panama’s transisthmian region has been the definition of its study area since different authors use diverse criteria. This work defines the study area as the territory used as transit routes over several centuries with political limits imposed upon the creation of the Canal Zone, regardless of the natural de...

The shortage of reliable primary taxonomic data limits the description of biological taxa and the understanding of biodiver-sity patterns and processes, complicating biogeographical, ecological, and evolutionary studies. This deficit creates a significant taxo-nomic impediment to biodiversity research and conservation planning. The taxonomic impedi...

The shortage of reliable primary taxonomic data limits the description of biological taxa and the understanding of biodiver-sity patterns and processes, complicating biogeographical, ecological, and evolutionary studies. This deficit creates a significant taxo-nomic impediment to biodiversity research and conservation planning. The taxonomic impedi...

Este estudio tiene como objetivo comprender la influencia del urbanismo norteamericano en la Zona del Canal, determinar qué procesos de urbanización se dieron y las implicaciones ello tuvo en la salud humana, los recursos naturales y la biodiversidad, a través del caso del Fuerte Clayton. Para ello se identifica la influencia que tuvo el urbanismo...

The urge to organise the world around us is an essential part of human nature. Naming and categorising enable us to store and access information ef ciently. The need to name and categorise extends to the natural world and, in particular, to living organisms. The science underpinning this area of knowledge is called Taxonomy, and is as old as humani...

El género neotropical Varronia P. Browne es uno de los más problemáticos, taxonómicamente, entre las Boraginales. Esto puede deberse a la frecuente superposición de los límites entre la variación intra e interespecífica de algunos caracteres. La finalidad de este trabajo fue explorar el potencial de los caracteres morfoanatómicos foliares para la d...

Quadrella antonensis and its congener, Q. dressleri, are striking examples of shrubs and small trees the architecture and morphology of which appear to be adapted to trap leaf litter falling from the forest canopy. Endemic to a few highland locations in Panama, Q. antonensis apparently trades‐off light‐capture efficiency for aboveground nutrient ca...

The aroid flora in Panama includes 436 described species in 26 genera, representing the richest country of Araceae in Central America. Much of the existing knowledge of the Panamanian aroids has been generated in the last 50 years, mainly due to extensive taxonomic studies and, to a lesser extent, by floristic studies. Floristic studies generated v...

Los bosques nubosos juegan un papel fundamental en el mantenimiento y calidad de agua, además de generar hábitats para los animales. La estructura y característica de estos bosques los hace ser “hot-spots” de biodiversidad y centros de endemismo. En este estudio se calculó la diversidad alfa de una comunidad vegetal y se evaluó de forma muy general...

Patrones de diversidad (α y β) de las aráceas y su importancia en la conservación de los bosques de Cerro Pirre (Darién, Panamá)

The family Araceae (aroids) represents an ecologically important and diverse group of plants in Panama, represented by 25 genera, 615 species, of which 277 (45%) are considered endemic. The aim of this study is to analyse the diversity and distributional patterns of aroids along an elevation gradient in the species-rich forests of Darién, Panama. W...

Ninety-four species belonging to 12 genera of Araceae are recorded on Cerro Pirre (Darién Province): Adelonema Schott (two); Anthurium Schott (39), Chlorospatha Engl. (2), Dieffenbachia Schott (3); Heteropsis Kunth (1); Monstera Adans. (6); Philodendron Schott (28), Rhodospatha Poepp. (2); Spathiphyllum Schott (2); Stenospermation Schott (3); Syngo...

The Global Strategy for Plant Conservation (GSPC) was established by the Conference of Parties in 2002 to decrease the loss of plant diversity, reduce poverty and contribute to sustainable development. To achieve this overarching goal, the GSPC has established a series of targets, one of which is to ensure that plant diversity is well understood, s...

Panamá posee una alta riqueza natural y su conocimiento, uso racional, conservación y protección ha de ser una prioridad fundamental para garantizar el desarrollo del país. Las entidades como los herbarios son herramientas imprescindibles para esta labor, ya que en ellas se construye el entendimiento científico de dicha riqueza y en el proceso se g...

Cordia es un género de la familia Boraginaceae, caracterizado por su hábito arbóreo o arbustivo; inflorescencias cimosas; estilo terminal con 4 lobos estigmáticos y los cotiledones plegados. Comprende aproximadamente 250 especies, distribuidas en regiones tropicales y subtropicales del mundo. En Panamá existen 21 especies, de las cuales 3 son endém...

The genus Cryptochloa consists of nine species distributed from northern Central America to northwest South America. It is characterized by flat leaves and many nodes in the upper part of the culm. Eight species are reported in Panama, four of which are endemic. The objective of this study is to compare the leaf internal anatomy and epidermis of fo...

An updated inventory of Brazilian seed plants is presented and offers important insights into the country’s biodiversity. This work started in 2010, with the publication of the Plants and Fungi Catalogue, and has been updated since by more than 430 specialists working online. Brazil is home to 32,086 native Angiosperms and 23 native Gymnosperms, sh...

http://dx.doi.org/10.5007/2175-7925.2014v27n4p43 Este trabalho baseia-se na análise de espécimes de herbários, estudos de campo e revisão da literatura sobre os gêneros e espécies de Boraginaceae sensu lato representados no Brasil. É apresentada uma chave para os nove gêneros registrados, bem como comentários sobre a distribuição, hábitat e número...

Typifications are proposed to facilitate ongoing studies in Cordiaceae and to maintain current usage. Lectotypes are designated for the following 13 names: Cordia ecalyculata, C. digyna, C. diospyrifolia, C. exaltata var. melanoneura, C. magnoliifolia, C. obscura var. tomentosa, C. obscura var. magnifolia, C. salicifolia, C. sellowiana, C. silvestr...

We describe four new species of Cordia (Cordiaceae) from Brazil: Cordia fusca, C. glabrifolia, C. restingae, and C. tarodae. These are illustrated, and data on habitat, phenology, and distribution are provided.

This work consists of a floristic survey of Boraginaceae in APA Serra Branca/Raso da Catarina, located in Jeremoabo, Bahia, Brazil. We analyzed specimens collected between August 2009 and June 2011 and collections deposited in the ALCB, HRB and HUEFS herbaria. Four genera and ten species of Boraginaceae were found: Cordia rufescens A.DC., C. tricho...

Se describe e ilustra una nueva especie para el noreste de Brasil: Cordia pilosa M. Stapf & Taroda (Cordiaceae). También se presentan datos sobre su hábitat, distribución y fenología. Esta nueva especie pertenece a Cordia sect. Superbiflorae Taroda, y se distingue de las especies similares de la sección Superbiflorae por sus inflorescencias compact...

Typifications and new combinations are provided for Boraginaceaes. L. from Brazil in advance of the List of Species of the Brazilian Flora. Varronialeucomalla (Taub.) Borhidi is lectotypified, and is presented Varroniamayoi (Taroda) M. Stapf is presented as a new combination. Additionally, the identity of Varronia glandulosa (Fresen.) Borhidi and V...