Carmen Ulloa Ulloa's research while affiliated with Missouri Botanical Garden and other places

Publications (86)

Article
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Laplacea plicata G. Moya, N. Miranda, Oleas & C. Ulloa, restricted to the sandstone plateaus of the Cordillera del Cóndor in southeastern Ecuador, is described as a species new to science, illustrated, and compared with other two morphologically similar species: L. tomentosa (Mart.) G. Don and L. spathulata Kobuski. Additionally, a preliminary cons...
Chapter
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The tribe Merianieae is a strictly Neotropical group with ca. 300 species in eight genera: Adelobotrys, Axinaea, Centronia, Graffenrieda, Macrocentrum, Maguireanthus, Meriania, and Salpinga. The tribe is characterized by diplostemonous flowers, anthers with simple to complex dorsal connective appendages, lacking ventral appendages, short or absent...
Chapter
The Melastomataceae, with some 5858 species, are among the 10 largest families of flowering plants. Melastomes are subcosmopolitan and mainly distributed in the tropics and subtropics, with a majority of the species in the Neotropics. The family consists of 173 genera, and, as currently understood, it is divided into 3 clades (subfamilies): the Kib...
Chapter
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This Report provides a comprehensive, objective, open, transparent, systematic, and rigorous scientific assessment of the state of the Amazon’s ecosystems, current trends, and their implications for the long-term well-being of the region, as well as opportunities and policy relevant options for conservation and sustainable development.
Chapter
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Amazonian lowland tropical rainforests cover ~5.79 million km2. Based on geology, the Amazon lowland forest area can be divided into six regions. The Guiana Shield and Brazilian Shield (in the southern Ama- zon) are on very old, nutrient-poor soils, while the Western Amazonian regions (northern and southern) and the regions along the Amazon River a...
Chapter
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Scientists have not been able to estimate, to the nearest order of magnitude, the number of species in the Amazon. Although the Amazon includes one of the largest forests in the world, it is also one of the least known biologically. Documenting its biodiversity is challenging because of its immense size, heterogeneity, and limited access. Based on...
Article
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Field photographs of plant species are crucial for research and conservation, but the lack of a centralized database makes them difficult to locate. We surveyed 25 online databases of field photographs and found that they harboured only about 53% of the approximately 125,000 vascular plant species of the Americas. These results reflect the urg...
Article
Full-text available
Field photographs of plant species are crucial for research and conservation, but the lack of a centralized database makes them difficult to locate. We surveyed 25 online databases of field photographs and found that they harboured only about 53% of the approximately 125,000 vascular plant species of the Americas. These results reflect the urgent n...
Article
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Six species of Burmeistera H. Karst. & Triana are described as new from Ecuador: B. chrysothrix Mashburn & Muchhala, B. crocodila Mashburn & Muchhala, B. erosa Mashburn, B. lingulata Mashburn & Muchhala, B. sierrazulensis Mashburn & Muchhala, and B. valdiviana Mashburn. These discoveries bring the total number of Burmeistera species in Ecuador to c...
Article
In order to correct oversights and mistakes made by us while transferring species names to Miconia from other genera of the tribe Miconieae, we propose the following new names and combinations: Miconia durandii, Miconia hermogenesii, Miconia macropetala, Miconia reptans, Miconia retropila, Miconia riedeliana, Miconia trichocalyx, and Miconia verruc...
Article
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We compare the numbers of vascular plant species in the three major tropical areas. The Afrotropical Region (Africa south of the Sahara Desert plus Madagascar), roughly equal in size to the Latin American Region (Mexico southward), has only 56,451 recorded species (about 170 being added annually), as compared with 118,308 recorded species (about 75...
Data
Se presenta una lista de especies de árboles de la Amazonía ecuatoriana, revisada taxonómicamente, que es el resultado de 20 años de inventarios florísticos y revisiones de especímenes en los herbarios ecuatorianos. Los resultados determinaron que hay 2296 especies de árboles, el 90% de estas especies se encuentran actualmente en la lista de No Eva...
Article
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We compiled a data set for all tree species collected to date in lowland Amazonian Ecuador in order to determine the number of tree species in the region. This data set has been extensively verified by taxonomists and is the most comprehensive attempt to evaluate the tree diversity in one of the richest species regions of the Amazon. We used four m...
Book
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Este libro presenta información biológica y ecológica sobre 81 especies de árboles representativos de los bosques montanos del noroccidente de Pichincha. El conjunto de árboles seleccionados fueron determinados a partir del sistema de monitoreo de parcelas permanentes de la dinámica de los bosques montanos establecidos por CONDESAN en el 2012.
Presentation
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La familia Melastomataceae es una de las familias más abundantes y diversas del Ecuador, con cerca de 574 especies distribuidas en 43 géneros (Wurdack, 1980; Renner, 1999; Ulloa y Neill, 2004), ocupa el tercer lugar después de Orchidaceae y Asteraceae, su número de especies representa a un 3% de la riqueza total de plantas vasculares del país (Jørg...
Article
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The cataloging of the vascular plants of the Americas has a centuries-long history, but it is only in recent decades that an overview of the entire flora has become possible. We present an integrated assessment of all known native species of vascular plants in the Americas. Twelve regional and national checklists, prepared over the past 25 years an...
Article
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We investigate whether the Amotape-Huancabamba zone in the Andes acts as a barrier or corridor for plant species migration. We test this hypothesis based on data on trees, shrubs, and herbs collected in dry inter-Andean valleys (DIAVs) of Ecuador. We found that 72% of the species cross the Amotape-Huancabamba zone in a north-south direction and 13%...
Conference Paper
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La familia Melastomataceae es una de las familias más abundantes y diversas del Ecuador, con cerca de 574 especies distribuidas en 43 géneros [1, 2, 3], ocupa el tercer lugar después de Orchidaceae y Asteraceae, su número de especies representa a un 3% de la riqueza total de plantas vasculares del país [4]. Aproximadamente el 36% del número total d...
Article
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A new species, Blakea nangaritzana D. Fernández, C. Ulloa & Penneys from Nangaritza canton, Zamora-Chinchipe, southern Ecuador is described and illustrated. It differs from all other species of the genus by the character combination of terrestrial trees up to 25 m tall, outer and inner floral bracts free, narrowly oblanceolate to linear, hypanthium...
Article
Alloneuron glomeratum, a new species of Melastomataceae from the Marañón Valley in northern Peru, is described and illustrated. This new species can be quickly recognized and differentiated from other species in Alloneuron by the presence of pseudo-glomerulate inflorescences.
Book
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Se presenta un documento técnico de divulgación sobre las plantas de los páramos del DMQ, se realiza una síntesis de los ecosistemas y se describen varias especies representativas. El propósito es dar a conocer la riqueza, la estructura y composición florística, el funcionamiento y los servicios ambientales que ofrece el páramo para los habitantes...
Article
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A new species from Ecuador, Symplocos limonensis, is here described and illustrated. It resembles S. clethrifolia but differs by having larger leaves with evident (i.e., not concealed) areoles on lower surface, sessile inflorescences, smaller white corollas, and fewer stamens. The species is only known from three collections in the Andean forests o...
Article
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Anthurium sect. Belolonchium (Araceae) is defined and characterized. One new species of sect. Belolonchium, namely A. yanacochense Croat, C.Ulloa & E.Freire from Pichincha province, Ecuador, is described as new and compared with related species.
Article
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A new species, Chalybea brevipedunculata, from the Ecuador-Peru border is herein described and illustrated. It differs from all other species in the genus by having inflorescence peduncles that are shorter than their subtending leaf petioles.
Article
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PHYTOTAXA ISSN 1179-3155 (print edition) ISSN 1179-3163 (online edition) 50 Accepted by Lorenzo Phaedranassa Herbert (1845: misc. 16) is a small genus of bulbous, terrestrial geophytes comprising some eleven species, eight endemic to Ecuador, three known from Colombia, and one from Costa Rica (Meerow 1990). Most of the species are narrow endemics k...
Article
Two new species, Coussapoa dariensensis C. C. Berg and C. peruviana C. C. Berg, are described and illustrated from Panama and Peru, respectively, for the Urticaceae, tribe Cecropieae.
Article
Abstract— The new genus Quipuanthus from the foothills of the eastern Andes of Ecuador and Peru is described. Quipuanthus seems to be related to Allomaieta, Alloneuron, and Wurdastom in the tribe Cyphostyleae, but the combination of characters as an herb with haplostemonous flowers, recurved style, inferior ovary and apically dehiscent capsular fr...
Article
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Graffenrieda penneysii, a new species known only from cloud forests in southern Ecuador is described. Graffenrieda penneysii is characterized by a calyptrate calyx that irregularly dehisces at anthesis, four-merous flowers, and indumentum of minute, sessile, glandular trichomes. This new species is compared to putative relatives in Graffenrieda and...
Conference Paper
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Debido a su elevada riqueza biológica, endemismos y amenazas, los bosques montanos de los andes son considerados actualmente como una de las mayores prioridades de conservación mundial. El objetivo de esta investigación es identificar el riesgo de extinción de las especies de árboles de los bosques montanos de los Andes tropicales (latitudes 11°7‘5...
Data
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From journal: "The tropical Andes is a unique region with high habitat diversity, resulting from complex climatic and spatial gradients. Andean montane forests are currently a major global conservation priority owing to their high species richness and high level of endemism. Nonetheless they are considered one of the least known ecosystems in the t...
Article
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p>The tropical Andes is a unique region with high habitat diversity, resulting from complex climatic and spatial gradients. Andean montane forests are currently a major global conservation priority owing to their high species richness and high level of endemism. Nonetheless they are considered one of the least known ecosystems in the tropics, but t...
Article
Full-text available
The tropical Andes is a unique region with high habitat diversity, resulting from complex climatic and spatial gradients. Andean montane forests are currently a major global conservation priority owing to their high species richness and high level of endemism. Nonetheless they are considered one of the least known ecosystems in the tropics, but the...
Article
Full-text available
Miconia machinazana C.Ulloa & D.A. Neill, sp. nov.,a new species of Melastomataceae from the Ecuador-Peru border is described and illustrated. It is characterized by the narrow, decussate leaves, dense reddish brown indument, small flowers in short panicles, pale yellow petals, and anthers opening by two large terminal pores.
Article
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El bosque de niebla de México, formación vegetal ampliamente conocida en este país como bosque mesófilo de montaña, incluye una variedad de asociaciones que ocupan aproximadamente 1% del territorio nacional. Por su distribución fragmentaria en las partes media y alta de las serranías húmedas (principalmente, pero no de manera continua entre 1500 y...
Article
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Se describe e ilustra un nuevo género monotípico Hondurodendron C. Ulloa, Nickrent, Whitef. & D. Kelly endémico de Honduras. La nueva especie H. urceolatum C. Ulloa, Nickrent, Whitef. & D. Kelly es un árbol dioico, que se distingue por las flores diminutas en inflorescencias densamente tomentosas, las anteras únicas que se abren por tres valvas y u...
Article
A new species, Meriania horrida C. Ulloa & Ach (Melastomataceae), from the department of La Paz, Bolivia, is described and illustrated. This species is characterized by the stems, petioles, and axes of the inflorescences covered by a dense indumentum consisting of bristly dendritic trichomes, and by the ovary that presents apical fleshy colorful lo...
Article
Se describe e ilustra Phainantha shuariorum (Melastomataceae) de las montañas de arenisca de la región de la Cordillera del Cóndor en el sudeste de Ecuador; es una especie disyunta de un género que, de otra forma, sólo se conoce del Escudo Guayanés en el nordeste de América del Sur. Se parece a P. laxiflora y P. maguirei por el hábito trepador y vo...
Article
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Se describe e ilustra una especie nueva, Meriania aurata C. Ulloa, D. Fernández & D. A. Neill (Melastomataceae) del Parque Nacional Llanganates, Ecuador. Se parece a M. hernandoi L. Uribe; ambas especies tienen hojas de gran tamaño con la base de la lámina auriculada y con un escudo en la inserción del pecíolo, la inflorescencia robusta, el cáliz a...
Article
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Se describen tres nuevas especies de Eleocharis R. Brown (Cyperaceae) de Colombia: E. fassettii S. González & P. M. Peterson, E. cuatrecasii S. González & P. M. Peterson y E. moraosejoana S. González, C. Ulloa & P. M. Jørgensen, conocidas solamente de páramos andinos. Todas forman parte de Eleocharis subgen. Eleocharis, secc. Eleocharis. Difieren d...
Article
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Meriania franciscana C. Ulloa & Homeier (Melastomataceae) from the southeastern province of Zamora-Chinchipe, Ecuador, is described and illustrated. It is distinguished by the markedly dimorphic stamens, the connective of the antipetalous anthers prominently thickened and with two appendages, one subulate and the other oblongoid, the inflorescence...
Article
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Meriania franciscana C. Ulloa & Homeier (Melastomataceae) from the southeastern province of Zamora-Chinchipe, Ecuador, is described and illustrated. It is distinguished by the markedly dimorphic stamens, the connective of the antipetalous anthers prominently thickened and with two appendages, one subulate and the other oblongoid, the inflorescence...
Article
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We used predictive modeling of species distributions to identify conservation priority areas in the equatorial Pacific region of western Ecuador and northwestern Peru. Museum and herbarium data and predictive models of species distributions are increasingly being used to assess the conservation status of individual species. In this study, we assemb...
Article
A new species of Melastomataceae, Brachyotum sertulatum C. Ulloa, from southern Colombia is described and illustrated. It is characterized by a conspicuous single row of large tubercles sub-marginal on the leaf blade above. It is endemic to the Páramo de las Papas in the Colombian massif (Macizo Colombiano), between the departments of Cauca and Hui...
Article
Full-text available
A new species of Melastomataceae, Brachyotum sertulatum C . Ulloa, from southern Colombia is described and illustrated. It is characterized by a conspicuous single row of large tubercles sub-marginal on the leaf blade above. It is endemic to the Páramo de las Papas in the Colombian massif (Macizo Colombiano), between the departments of Cauca and Hu...
Article
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The Santalaceae are represented in Peru by three genera and 11 species (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004), all parasitic herbs and trees. Here we recognize five endemic species, all of them in the genus Quinchamalium. These endemic species are found in Subtropical Costal Desert and Mesoandean regions, between 280 and 3500 m elevatio...
Article
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The Berberidaceae are represented in Peru by 32 species in the genus Berberis (Brako & Zarucchi, 1993), most of them shrubs. Most of the 14 endemic species grow in the Mesoandean region, between 2000 and 4200 m elevation. Two of these endemic species have been reported in the Peruvian System of Protected Natural Areas. La familia Berberidaceae es r...
Article
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A new species of Asteraceae, Arnal- doa argentea C. Ulloa, P. Jørgensen & M. O. Dillon, from southern Ecuador is described and illustrated. It is characterized by its cream-white to light or- ange corollas and red-brown phyllaries covered by a dense silvery pubescence, especially on the ad- axial surface. The genus was previously known only from no...
Article
Andean South America, including the adjacent lowland environments, can be evaluated in reference to the patterns and processes that characterize plant diversity, evolution, and distribution. Although its ecological complexity is bewildering and the evolutionary and geological history is convoluted and poorly understood, progress can be made by test...
Article
Andean South America, including the adjacent lowland environments, can be evaluated in reference to the patterns and processes that characterize plant diversity, evolution, and distribution. Although its ecological complexity is bewildering and the evolutionary and geological history is convoluted and poorly understood, progress can be made by test...
Article
In order to comply with the current International Code of Botanical Nomenclature a new combination, Billia rosea (Planchon & Linden) C. Ulloa & P. Jørgensen, is proposed to replace the superfluous name Billia columbiana Planchon & Linden ex Triana & Planchon. /// Para conformar con el Código Internacional de Nomenclatura Botánica vigente se propone...
Article
A new species, Acanthosyris annonagustata C. Ulloa & P. Jørgensen, from Napo, Ecuador, is described and illustrated. This species is characterized by its golden brown puberulent inflorescence and fruit. The plant is used in local medicine, and the fruits taste like Annona and are eaten by monkeys. In Ecuador, Acanthosyris is also represented by A....
Article
A new species, Acanthosyris annonagustata C. Ulloa and P. Jorgensen, from Napo, Ecuador, is described and illustrated. This species is characterized by its golden brown puberulent inflorescence and fruit. The plant is used in local medicine, and the fruits taste like Annona and are eaten by monkeys. In Ecuador, Acanthosyris is also represented by A...
Article
Mutisia magnifica C. Ulloa & P. M. Jørgensen is described and illustrated. This species is distinguished by its large inflorescence heads, essentially glabrous phyllaries, ray florets with broadly elliptic, revolute ligulas, long inner lip segments, and long style. It is only known from the Cerro Uritusinga in the province of Loja, Ecuador. /// Se...
Article
Mutisia magnifica C. Ulloa and P. M. Jorgensen is described and illustrated. This species is distinguished by its large inflorescence heads, essentially glabrous phyllaries, ray florets with broadly elliptic, revolute ligulas, long inner lip segments, and long style. It is only known from the Cerro Uritusinga in the province of Loja, Ecuador.