| Polysiphonia morrowii | |
|---|---|
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| Polysiphonia morrowii (fig. 1-8) | |
Scientific classification 
| |
| (unranked): | Archaeplastida |
| Division: | Rhodophyta |
| Class: | Florideophyceae |
| Order: | Ceramiales |
| Family: | Rhodomelaceae |
| Genus: | Polysiphonia |
| Species: |
P. morrowii
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| Binomial name | |
| Polysiphonia morrowii Harvey, 1857 | |
Polysiphonia morrowii is a species of red algae native to Northeast Asia. It has become an invasive speciesinEurope, Australia, New Zealand, and South America.[1][2]
It is susceptible to infection by the parasitic oomycete Pythium porphyrae[3]
A description is provided for Pythium porphyrae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASES: Red-rot disease, red-wasting disease. HOSTS: Bangia atropurpurea, Callophyllis adhaerens, Polyopes affinis (syn
| Polysiphonia morrowii |
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