Oncidium Sharry Baby orchids from nursery greenhouses in Buenos Aires, Argentina with viral symptoms were processed for transmission electron microscope observations. Two types of viral particles, morphologically different, were observed. The aim of this work is identification of viral particles...

Pinus contorta (lodgepole pine) is invasive in many southern hemisphere countries, having spread extensively from original plantings. It is widely controlled to limit its spread and negative impacts, and is generally assumed to have little value for native plant biodiversity. We surveyed vegetation ...

PREMISE OF THE STUDY: Oeceoclades maculata is a naturalized, invasive, terrestrial orchid in Puerto Rico and elsewhere in the neotropics. We asked whether its success might be partly explained by its mycorrhizal associations, hypothesizing a relationship with many fungal partners or with one widely ...

Non-timber forest resources (NTFRs) are the non-woody part of the forest vegetation susceptible to be used by rural populations. This study researched the main NTFRs -specifically plants- used in the towns of Capulálpam and Jaltianguis, in the state of Oaxaca. 40 key informants selected using the...

We studied the quantity and distribution of orchids (mainly the two Orchis species O. militaris and O. ustulata) in the protected area Life+ Traisen (Danube floodplain) in 2014. The distribution of plants (subpopulations) in the study area was related to the current management, vegetation...

Mutualistic relationships between plants and their pollinators have played a major role in the evolution of biodiversity. While the vulnerability of these relationships to environmental change is a major concern, studies often lack a framework for predicting impacts from emerging threats (e.g....

The Sheyenne National Grassland (SNG) is a native tall grass and mixed grass prairie located in southeastern North Dakota. Approximately half of the SNG has been invaded by leafy spurge (Euphorbia esula L.) and control methods have been limited. Many herbicides cannot be utilized at the SNG due to...

Tropical region representing 36% of the Earth's surface and 20% of its land mass is characterized by warm to hot and moist climate with lush green vegetation. Andaman and Nicobar Islands, India harbour over 2650 species of flowering plants, of which 223 species are endemic and 1300 do not occur in...

Overabundant white-tailed deer are one of the most serious threats to woodland plant communities in the Chicago area. Moreover, the abundant deer in a highly populated area causes economic harm and poses hazards to human safety through collisions with vehicles. The artificial conditions causing the ...

Most non-autogamous orchids rely on either a single, or on a small number of pollinators to set fruit. The nectar-rewarding orchid Brachystele unilateralis and the nectarless and deceit-pollinated Chloraea virescens are restricted to the Southern Andes, where a single native and endemic bumblebee (...