Hematochrome

File:Haematococcus pluvialis aggregate.jpg, with carotenoid pigments]]

Hematochrome is a yellow, orange, or (most commonly) red biological pigment present in some green algae, especially when exposed to intense light. It is a name used mainly in older literature. Hematochrome is a mixture of carotenoid pigments and their derivates.{{cite web|url=http://www.salinesystems.org/content/1/1/2|title=Aquatic Biosystems | Full text | A hundred years of Dunaliellaresearch: 1905-2005|publisher=salinesystems.org|accessdate=2014-10-24|archive-date=2011-10-02|archive-url=https://web.archive.org/web/20111002025140/http://www.salinesystems.org/content/1/1/2|url-status=dead}}{{cite book|title=Phycology|author=Lee, R.E.|date=1999|publisher=Cambridge University Press|isbn=9780521638838|url=https://archive.org/details/phycology00robe|url-access=registration|page=[https://archive.org/details/phycology00robe/page/172 172]|accessdate=2014-10-24}}{{cite web|url=http://www.adap.hawaii.edu/adap/ASCC_LandGrant/Dr_Brooks/TechRepNo39.pdf|date=20 August 2003|title=PLANT PARASITIC ALGAE (TRENTEPOHLIALES, CHLOROPHYTA) IN AMERICAN SAMOA|author=Fred Brooks|accessdate=2014-10-24}}