Hildenbrandiales
Order of algae From Wikipedia, the free encyclopedia
Hildenbrandiales is an order of crustose forms red alga which bear conceptacles[2] and produce secondary pit-connections.[3] They reproduce by vegetative gemmae[4] as well as tetrasporangia, which are produced inside the conceptacles. The way in which the tetraspores are produced is unusual enough to justify the formation of this distinct order.[2] Some members of the order are known from freshwater rivers as well.[5]
| Hildenbrandiales | |
|---|---|
| |
| Hildenbrandia rivularis | |
| Scientific classification | |
| Clade: | Archaeplastida |
| Division: | Rhodophyta |
| Class: | Florideophyceae |
| Subclass: | Hildenbrandiophycidae G.W.Saunders & Hommersand |
| Order: | Hildenbrandiales Pueschel & Cole, 1982 |
| Family: | Hildenbrandiaceae Rabenhorst, 1868 |
| Genera[1] | |
| |
Systematics
Hildenbradiales are difficult to discriminate on morphological grounds; tetrasporangia morphology is the only vaguely reliable character, but molecular techniques have indicated a monophyletic Apophlaea within a paraphyletic Hildenbrandia, with many Hildenbrandia species being recognized as non-monophyletic.[1]
References
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