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Timelapse of a resurrection fern (Pleopeltis polypodioides) absorbing a drop of water. When the fronds "dry", the mesophyll deforms, which causes the lamina to curl and exposes the underside and show the peltate scales. The peltate scales help prevent photooxidation and mechanical damage, as well as assist in quick rehydration. [10]
Pleopeltis michauxiana, known as the resurrection fern, scaly polypody, and Gray's polypody, [3] [4] [5] is a species of epiphytic fern native to North America and Central America. [5] Pleopeltis michauxiana is found in the lower Midwest and Southeastern United States, Mexico, and Guatemala. [5] It is the most widespread epiphytic fern in North ...
Pleopeltis is a genus of ferns in the family Polypodiaceae, subfamily Polypodioideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). [2] The genus widely distributed in tropical regions of the world, and also north into temperate regions in eastern North America and eastern Asia .
The USDA’s Animal and Plant Health Inspection Service, or APHIS, has allocated more than $108,000 for a research project studying the risks of beech leaf disease in several states.
Symptoms can overlap across causal agents, however differing signs and symptoms of certain pathogens can lead to the diagnosis of the type of leaf spot disease. Prolonged wet and humid conditions promote leaf spot disease and most pathogens are spread by wind, splashing rain or irrigation that carry the disease to other leaves.
Blight is a rapid and complete chlorosis, browning, then death of plant tissues such as leaves, branches, twigs, or floral organs. [1] Accordingly, many diseases that primarily exhibit this symptom are called blights. Several notable examples are: [citation needed]
This is a list of diseases of foliage plants belonging to the family Polypodiaceae. Plant Species ... Boston fern Pl Platycerium spp. staghorn fern Pt Pteris spp ...
Symptoms on leaves initially occur where water droplets accumulate and eventually form small, brown spots surrounded by halos on the upper surface of leaves. [2] These spots expand very quickly and form large brown lesions. [3] The entire leaf can be destroyed within a few days of the initial appearance of symptoms under wet conditions. [4]