"Reproductive Biology of Goodyera oblongifolia (orchidaceae)" in Madrono

"Biosystematic studies in the genus Piperia (Orchidaceae)" in Theses and Projects

"Biosystematics of the genus Piperia Rydb. (Orchidaceae)" in Botanical Journal

"Dodsonia, a new Ecuadorian genus of the zygopetalinae (orchidaceae)" in Selbyana

"Pollination biology of Listera Cordata (Orchidaceae)" in American Journal of Botany

"The Effectiveness of Fungus Gnats as Pollinators" in American Journal of Botany

"Pollination biology of Calypso bulbosa var. occidentals (orchidaceae): a food-deception system" in Madrono

"Pollen Morphology of the Chloraeinae (Orchidaceae: Diurideae) and related subtribes" in American Journal of Botany

"Two new species of the chondrorhyncha complex (orchidaceae: zygopetalinae)" in Selbyana

"Stratum, Tree, and Flower Selection by Tropical Bees: Implications for the Reproductive Biology of Outcrossing Cochlospermum Vitifolium in Panama" in Ecology

"Food-Foraging Behavior of Male Euglossini (Hymenoptera: Apidae): Vagabonds or Trapliners?" in Biotropica

"Diversity and Seasonality of Male Euglossine Bees (Hymenoptera: Apidae) in Central Panamá" in Ecology

"On the Evidence for a Primitively Epiphytic Habit in Orchids" in Systematic Biology

"Euglossine bee pollination of the orchid, Cochleanthes Lipscombiae: a food source mimic" in American Journal of Botany

"Specificity and mutual dependency of the orchid-euglossine bee interaction" in Biological Journal of the Linnean Society

"Longevity of Euglossine Bees" in Biotropica

"Relative pollinator effectiveness and evolution of floral traits of Spathiphyllum Friedrichsthalii (Araceae)" in American Journal of Botany

"Two new species of epidendrum with lateral inflorescences" in Selbyana

"Coping with the epiphytic existence: pollination strategies" in Selbyana

"Limitations to Fruit Production in Ionopsis utricularioides (Orchidaceae)" in Biotropica

"Long-Term Ecology of Euglossine Orchid-Bees (Apidae: Euglossini) in Panama" in Oecologia

"Limitations to Sexual Reproduction in Encyclia krugii (Orchidaceae)" in Systematic Botany

"Asynchronous Phenologies of a Neotropical Orchid and Its Euglossine Bee Pollinator" in Ecology

"Geographic and Seasonal Variation in Fragrance Choices and Preferences of Male Euglossine Bees" in Biotropica

"Short- and Long-Term Limitations to Fruit Production in a Tropical Orchid" in Ecology

"Patterns and Maintenance of Extraordinary Variation in the Caribbean Orchid, Tolumnia (Oncidium) variegata" in Systematic Botany

"Ecological Effects of Hurricanes" in Bulletin of the Ecological Society of America

"Effects of display size, flowering phenology, and nectar availability on effective visitation frequency in Comparettia Falcata (Orchidaceae)" in American Journal of Botany

"Immediate Impact of Hurricance Hugo on a Puerto Rican Rain Forest" in Ecology

"Orchid-Phorophyte Relationships in a Forest Watershed in Puerto Rico" in Journal of Tropical Ecology

"A New Species of Lepanthes (Orchidaceae) from Puerto Rico" in Brittonia

"The Effects of a Rust Infection on Fitness Components in a Natural Population of Tolumnia variegata (Orchidaceae)" in Oecologia

"Factors associated with a rust infection (Sphenosphora saphena) in an epiphytic orchid (Tolumnia variegata)" in American Journal of Botany

"A Meager Nectar Offering by an Epiphytic Orchid is Better than Nothing" in Biotropica

An Orchid Flora of Puerto Rico and the Virgin Islands

"Fruit set in a deceptive orchid: The effect of flowering phenology, display size, and local floral abundance" in American Journal of Botany

"Review of Orchids of Jamaica" in Systematic Botany

"The Maturation of a Flora: Orchidaceae of Puerto Rico and the Virgin Islands" in Annals of the New York Academy of Sciences

"Seedling establishment in an epiphytic orchid: an experimental study of seed limitation" in Oecologia

"Variation in pollinator abundance and selection on fragrance phenotypes in an epiphytic orchid" in American Journal of Botany

"Evolutionary potential in orchids: patterns and strategies for conservation" in Selbyana

"The cost of selfing in Encyclia cochleata (Orchidaceae)" in Plant Systematics and Evolution

"Genetic Variation in a Widespread, Epiphytic Orchid: Where is the Evolutionary Potential?" in Systematic Biology

"A Nectar Reward: Is More Better?" in Biotropica

"Reproduction in an Orchid Can Be Resource-Limited over Its Lifetime" in Biotropica

"Biogeography of the Antilles Based on a Parsimony Analysis of Orchid Distributions" in Journal of Biogeography

"Gene flow and effective population size in Lepanthes (Orchidaceae): a case for genetic drift" in Biological Journal of the Linnean Society

"Diversity and host specificity of endophytic Rhizoctonia-like fungi from tropical orchids" in American Journal of Botany

"Composition Patterns of Caribbean Limestone Forests: Are Parsimony, Classification, and Ordination Analyses Congruent?" in Biotropica

"Flowering Phenology of Werauhia sintenisii, a Bromeliad from the Dwarf Montane Forest in Puerto Rico: an Indicator of Climate Change?" in Selbyana

"Review of Orchids and their conservation" in Madrono

"Variación en germinación simbiótica entre semillas de Tolumnia variegata y entre hongos micorrízicos" in Lankesteriana: International Journal on Orchidology

"Potencial reproductivo, tasa de crecimiento y ambiente lumínico en Lepanthes rupestris Stimson" in Lankesteriana: International Journal on Orchidology

"Does Flower Color Variation Matter in Deception Pollinated Psychilis monensis (Orchidaceae)?" in Oecologia

"The Flexible Breeding System of Werauhia sintenisii, a Cloud Forest Bromeliad from Puerto Rico" in Biotropica

"Notes on the Caribbean orchid flora. V. New species, combinations and records" in Lankesteriana

"Differences in mycorrhizal preferences between two tropical orchids" in Molecular Ecology

"Variation in sexual reproduction in orchids and its evolutionary consequences: a spasmodic journey to diversification" in Biological Journal of the Linnean Society

"Variation in mycorrhizal performance in the epiphytic orchid Tolumnia variegata in vitro: the potential for natural selection" in Evolutionary Ecology

"Land-Use History Affects the Distribution of the Saprophytic Orchid Wullschlaegelia calcarata in Puerto Rico's Tabonuco Forest" in Biotropica

"Bat Pollination Breakdown in the Caribbean Columnar Cactus Pilosocereus royenii" in Biotropica

"Widespread mycorrhizal specificity correlates to mycorrhizal function in the neotropical, epiphytic orchid Ionopsis utricularioides (Orchidaceae)" in American Journal of Botany

"Orchids of the West Indies: predictability of diversity and endemism" in Journal of Biogeography

"Site Variation in Spatial Aggregation and Phorophyte Preference in Psychilis monensis (Orchidaceae)" in Biotropica

"Invasive orchids: weeds we hate to love?" in Lankesteriana: International Journal on Orchidology

"Floral color patterns in a tropical orchid: Are they associated with reproductive success?" in Plant Species Biology

"Oeceoclades maculata, an alien tropical orchid in a Caribbean rainforest" in Annals of Botany

"Riding across the Selection Landscape: Fitness Consequences of Annual Variation in Reproductive Characteristics" in Philosophical Transactions: Biological Sciences

"Reproductive assurance for a rewardless epiphytic orchid in Puerto Rico: Pleurothallis ruscifolia (Orchidaceae, Pleurothallidinae)" in Caribbean Journal of Science

"Morphological flexibility across an environmental gradient in the epiphytic orchid, Tolumnia variegata: complicating patterns of fitness" in Botanical Journal of the Linnean Society

"Are deception-pollinated species more variable than those offering a reward?" in Plant Systematics and Evolution

"Spatial distribution and performance of native and invasive Ardisia (Myrsinaceae) species in Puerto Rico: the anatomy of an invasion" in Biological Invasions

"Consequences of floral visits by ants and invasive honeybees to the hummingbird-pollinated, Caribbean cactus Melocactus intortus" in Plant Species Biology

"Can extinction risk help explain plant-pollinator specificity among euglossine bee pollinated plants?" in Oikos

"Orchidaceae" in Flora of the Cayman Islands

"Biotic versus abiotic pollination in Oeceoclades maculata (Lindl.) Lindl. (Orchidaceae)" in Plant Species Biology

"Nutrient limitation restricts growth and reproductive output in a tropical montane cloud forest bromeliad: findings from a long-term forest fertilization experiment" in Oecologia

"There goes the neighborhood: apparent competition between invasive and native orchids mediated by a specialist florivorous weevil" in Biological Invasions

"Spatial Distribution of Orchid Species in the Luquillo Mountains, Puerto Rico" in Carribean Journal of Science

"Biology and Impacts of Pacific Island Invasive Species. 10. Iguana iguana, the Green Iguana (Squamata: Iguanidae)" in Pacific Science

"Research Group in Orchids, Ecology and Plant Systematics: an inter-institutional initiative for plant conservation and sustainable use in south-west Colombia" in Lankesteriana: International Journal on Orchidology

"A New Ornithidium (Orchidaceae: Maxillariinae) from the Massif de la Hotte of Haiti" in Lankesteriana: International Journal on Orchidology

Orchid flora of the Greater Antilles

"Rapid transformation of orchid floras" in Lankesteriana: International Journal on Orchidology

"Biotic resistance and invasional meltdown: consequences of acquired interspecific interactions for an invasive orchid, Spathoglottis plicata in Puerto Rico" in Biological Invasions

"Terrestrial orchids in a tropical forest: best sites for abundance differ from those for reproduction" in Ecology

"When stable-stage equilibrium is unlikely" in Annals of Botany

"Invasive Syzygium jambos trees in Puerto Rico" in Journal of Tropical Ecology

"Biotic resistance in the tropics: patterns of seed plant invasions within an island" in Biological Invasions

"Quantifying how acquired interactions with native and invasive insects influence population growth rates of a non-indigenous plant" in Biological Invasions

"Erratum to: Quantifying how acquired interactions with native and invasive insects influence population growth rates of a non-indigenous plant" in Biological Invasions

"Diversification and fruit evolution in eumalvoids (Malvaceae)" in Botanical Journal of the Linnean Society

"Determinants of orchid species diversity in world islands" in The New Phytologist

"Best in the company of nearby males: female success in the threatened cycad, Zamia portoricensis" in PeerJ

"Land use legacy for a tropical myco-heterotroph: how spatial patterns of abundance, reproductive effort and success vary" in Journal of Plant Ecology

"Extremes of forest–urban gradient offer some refuge for alien orchid invasion" in Biological Invasions

"Island biogeography of native and alien plant species: Contrasting drivers of diversity across the Lesser Antilles" in Diversity and Distributions

"Small Populations on Small Islands: What Chance Does an Orchid Have?" in International Journal of Plant Sciences

"A revision of Thespesia and allied genera in Tribe Gossypieae (Malvaceae-Malvoideae)" in Brittonia

"Natural history of the often-misunderstood Govenia utriculata (Orchidaceae): discovery of a Mexican population upsets West Indies endemism" in Phytotaxa

"Ornamentals lead the way: global influences on plant invasions in the Caribbean" in NeoBiota

"Future changes in the distribution of two non-indigenous orchids and their acquired enemy in Puerto Rico" in Biological Invasions

"A new species of Eurystyles (Orchidaceae) is exposed by a fierce hurricane in Puerto Rico" in Lankesteriana: International Journal on Orchidology

"Explosive range expansion of Eulophia graminea (Orchidaceae) in Puerto Ricio and the West Indies" in Lankesteriana: International Journal on Orchidology

"Island Invasions by Introduced Honey Bees: What Can Be Expected for Puerto Rico and the Caribbean?" in Frontiers in Ecology and Evolution

"Population projections from holey matrices: Using prior information to estimate rare transition events" in Ecological Modelling

"Trick or treat? Pollinator attraction in Vanilla pompona (Orchidaceae)" in Biotropica

"Alien species affect the abundance and richness of native species in tropical forests: The role of adaptive strategies" in Ecosphere

"A New Miniature Melocactus (Cactaceae) from Puerto Rico" in Carribean Journal of Science

"Beyond the various contrivances by which orchids are pollinated: global patterns in orchid pollination biology" in Botanical Journal of the Linnean Society

"Gut microbiota variation of a tropical oil-collecting bee species far exceeds that of the honeybee" in Frontiers in Microbiology

"Geographical distribution and detection of two potyviruses occurring in Momordica charantia (Cucurbitaceae) in Puerto Rico" in The Journal of Agriculture of the University of Puerto Rico

"Sweet as Vanilla hartii: Evidence for a nectar-rewarding pollination mechanism in Vanilla (Orchidaceae) flowers" in Flora

"Host suitability for germination differs from that of later stages of development in a rare epiphytic orchid" in Lankesteriana

"The origin and speciation of orchids" in New Phytologist

"Climate change will likely facilitate invasion of Asian orchid Eulophia graminea into new areas" in Biological Invasions

"Temperature seasonality drives taxonomic and functional homogenization of tropical butterflies" in Diversity and Distributions

"Habitat affiliation of non-native plant species across their introduced ranges on Caribbean islands" in Biological Invasions

"Invasions of the bamboo orchid: performance variability on islands oceans apart" in Biological Invasions