Pyropia columbina

Pyropia columbina, Southern laver or karengo in the Māori language, is a species of edible seaweed traditionally harvested by South Island Māori. It is closely related to Japanese Nori and Welsh laverbread.[1]

Pyropia columbina
Scientific classification
(unranked): Archaeplastida
Division: Rhodophyta
Class: Bangiophyceae
Order: Bangiales
Family: Bangiaceae
Genus: Pyropia
Species:
P. columbina
Binomial name
Pyropia columbina
Synonyms

Porphyra columbina Montagne

During World War 2 the Māori Battalion were supplied especially with karengo harvested in New Zealand which they chewed raw while on the march.[2] It is widely available only in health stores, and is sprinkled raw on top of food.

The type locality is the Auckland Islands, and the species authority is Montagne 1842. It is found around South America from Argentina, Chile and Peru, and around Australia and New Zealand including Macquarie Island.[3] In the Chilean cuisine it is known as luche.

Description

The morphology of this species is variable, the fronds vary in shape and color. They can measure up to 10 cm long, they are flat, lobed at the edges and in some cases wavy. The color can vary from light brown, yellow and in some cases with light red to discolored edges. In the margins, the reproductive structures are presented, which when they are released, have a whitish coloration.

Gastronomy

The algae are collected from the shore, smoked or cured, then a kind of pressed tortilla is formed, also called "bread of fight", which are marketed in craft markets in different parts of the country with greater emphasis on the South of Chile. This seaweed is used for the preparation of stews, casseroles and legumes.

References
  1. Sutherland, J.E., Lindstrom, S.C., Nelson, W.A., Brodie, J., Lynch, M.D., Hwang, M.S., Choi, H.-G., Miyata, M., Kikuchi, N., Oliveira, M.C., Farr, T., Neefus, C., Mols-Mortensen, A. Milstein, D. & Müller, K.M. (2011). A new look at an ancient order: generic revision of the Bangiales (Rhodophyta). Journal of Phycology 47(5): 1131-1151.
  2. Wassilieff, Maggy (2 March 2009). "Seaweed - Traditional use of seaweeds". Te Ara: The Encyclopedia of New Zealand.
  3. Contreras-Porcia, L., Callejas, S., Thomas, D., Sordet, C., Pohnert, G., Contreras, A., Lafuente, A., Flores-Molina, M.R. & Correa, J.A.. (2012). Seaweeds early development: detrimental effects of desiccation and attenuation by algal extracts. Planta 235: 337-348.


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