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

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

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

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

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

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

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

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

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

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

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

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

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

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