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Dactylorhiza maculata, known as the heath spotted-orchid [2] or moorland spotted orchid, is an herbaceous perennial plant of the family Orchidaceae. It is widespread in mountainous regions across much of Europe from Portugal and Iceland east to Russia. It is also found in Algeria, Morocco, and western Siberia. [1] [3]
The English name 'common spotted' refers to the species' abundance and the spots on its leaves. The French and German common names also honour Leonhart Fuchs. This plant belongs to a problematic group of orchids. D. maculata subsp. fuchsii is very variable in flower colour and flower morphology, plant height and the scent of flowers.
Black rot on orchids is caused by Pythium and Phytophthora species. [1] Black rot targets a variety of orchids but Cattleya orchids are especially susceptible. [1] Pythium ultimum and Phytophthora cactorum are known to cause black rot in orchids. [1] Pythium ultimum is a pathogen that causes damping-off and root rot on plants. [2]
Moth orchids, also called phalaenopsis orchids, which are commonly sold by florists and big box stores, can last for a couple of months, says Justin Kondrat, lead horticulturist at the Smithsonian ...
Orchid fleck dichorhavirus, commonly called Orchid fleck virus (OFV), is a non-enveloped, segmented, single-stranded (ss) RNA negative-strand virus, transmitted by the false spider mite, Brevipalpus californicus. OFV causes necrotic and chlorotic lesions on the leaves [1] of many genera in the family Orchidaceae.
It can affect both freshwater and marine [1] fish. [2] [3] It appears as tiny black spots on the skin, fins, and flesh of the fish. The life cycle of the parasite typically involves a fish-eating bird, a snail and a fish. [4] The black spot larvae grow to sexual maturity in the infected bird's intestine. The adult worms pass eggs with the bird ...
Ophrys apifera, known in Europe as the bee orchid, is a perennial herbaceous plant of the genus Ophrys, in the family of Orchidaceae. It serves as an example of sexually deceptive pollination and floral mimicry, a highly selective and highly evolved plant–pollinator relationship.
The elder-flowered orchid prefers fresh or dry meadows (subalpine and alpine grasslands), light woods and clearings or scrubland. They grow on siliceous and calcareous substrate, at an altitude of 300–2,000 metres (980–6,560 ft) above sea level, although locally, for instance in Uppland , Sweden , they can be found at sea level as well.