Pyropia rakiura

Pyropia rakiura, formerly known as Porphyra rakiura, is a red alga species in the genus Pyropia, known from New Zealand. It is monostromatic, monoecious, and grows in the intertidal zone, predominantly on rock substrata. With P. cinnamomea, P. coleana and P. virididentata, they can be distinguished by morphology (such as the microscopic arrangement of cells along their thallus margin, their thallus shape, size and colour), as well as geographical, ecological and seasonal distribution patterns, and importantly, chromosome numbers, which in this species n = 2. Finally, these four species are distinguished by a particular nucleotide sequence at the 18S rDNA locus.[1]

Pyropia rakiura
Scientific classification
(unranked): Archaeplastida
Division: Rhodophyta
Class: Bangiophyceae
Order: Bangiales
Family: Bangiaceae
Genus: Pyropia
Species:
P. rakiura
Binomial name
Pyropia rakiura
WA Nelson, 2001, emended WA Nelson, 2011

Distribution

This species can be found on the mid to low intertidal zone of coasts on the southern North Island, the South Island and Stewart Island in New Zealand as well as on the coasts of Australia.[2]

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gollark: Square waves are a sum of *infinitely many* sines, and that might be bad as Python isn't very fast.
gollark: Why bother with dedicated hardware at all?
gollark: I suppose you might also want square waves, but those are about as easy.
gollark: And you can easily generate those using some basic python.

References
  1. Nelson, W (2001). "Four new species of Porphyra (Bangiales, Rhodophyta) from the New Zealand region described using traditional characters and 18S rDNA sequence data". Cryptogamie Algologie. 22 (3): 263–284. doi:10.1016/S0181-1568(01)01060-1. ISSN 0181-1568.
  2. Nelson, Nelson, W. A. (2013). New Zealand seaweeds : an illustrated guide. Wellington, New Zealand: Te Papa Press. p. 138. ISBN 9780987668813. OCLC 841897290.

Further reading
  • Brodie, Juliet, et al. "Making the links: towards a global taxonomy for the red algal genus Porphyra (Bangiales, Rhodophyta)." Journal of applied phycology20.5 (2008): 939–949.
  • Hemmingson, J. A., and W. A. Nelson. "Cell wall polysaccharides are informative in Porphyra species taxonomy." Journal of applied phycology 14.5 (2002): 357–364.
  • Nelson, W. A., J. E. Broom, and T. J. Farr. "Pyrophyllon and Chlidophyllon (Erythropeltidales, Rhodophyta): two new genera for obligate epiphytic species previously placed in Porphyra, and a discussion of the orders Erythropeltidales and Bangiales." Phycologia 42.3 (2003): 308–315.


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