104 CAROTINOIDS AND RELATED PIGMENTS 



called blood al^i-, and Trcntcpohlia Jolithus, the so-called violet 

 algap, has been made by Rostafinski (1881), Karsten (1891) and 

 Zopf (1892a, 1895). Cohn (1850) first called the pigment haemato- 

 chrome and this name was adopted by a number of subsequent inves- 

 tigators for the red pigment of many species of green algae. Rosta- 

 finski attempted to associate the haematochrome with chrysoquinone, 

 because the latter, like the red algae pigment, gave the blue color 

 reaction with concentrated H 2 S0 4 . A spectroscopic comparison of the 

 two pigments failing to substantiate such an identity the name chloro- 

 rufin was proposed for the algae pigment, and the possibility expressed 

 of an identity with the solanorubin (lycopin) which had been de- 

 scribed a few years previously by Millardet (1876). Karsten observed 

 that the haematochrome extracted from Trentepohlia by absolute 

 alcohol stained brown with osmic acid, a reaction, however, which 

 may have been due to traces of fat present in the extracts. 



TABLE 10. CHLOROPHYCEAE FOUND TO CONTAIN CAROTINOIDS 



Order Oedogoniales (highest forms). 



Oedogonium ,vy> <</,> Tammes, 1900; Kohl, 1902; van Wisselingh, 1915. 



BulbochaeteDeBacy, 1856; Cohn, 1867. 



Bulbochaete setigcra Kohl, 1902. 

 Order Heterosiphonalt .s 



Botrydium Ko.<tafinski, 1881. 

 Order Conjugates 



Spirogyra crassa Borodin, 1883; Molisch, 1896; Tammes, 1900; Kohl, 

 1902. 



Spirogyra maxima Borodin, 1883; van Wisselingh, 1915. 



Zygncma cruciatum van Wisselingh, 1915. 

 Order Utotrichales 



Phycopcltis epiphyton. P. Tcubii, P. maritima, P. aurea, P. amboincmis 

 Karsten, 1891; Zopf, 1892a. 



Cephaleurus (Mycaided) Icavis, C. solutus, C. albidus, C. parasiticus, P. 

 minimus Karsten, 1891 ; Zopf, 1892a. 



Trentepohlia (CHroolepus) maxima, T. moniUjormis, T. crassiaepta, T. 

 bisporangiata, T. cyania Karsten, 1891 ; Zopf, 1892a. 



Trentepohlia Jolithus Karsten, 1891; Zopf, 1892a; Kohl, 1902. 



Trentepohlia aurea Rostafinski, 1881; Zopf, 1892a. 



Trentepohlia umbrina Caspary, 1858; Frank, 1877; Zopf, 1892a. 



Trentepohlia aureum-tomentosum Caspary, 1858; Hildebrand, 1861. 



Trentepohlia Cohn, 1867. 



Stichococcus majus van Wisselingh, 1915. 

 Order Ulvales 



Uha lactuca (Sea lettuce) Willstiitter and Page, 1914. 



Enteromorpha intestinalis Tammes, 1900. 

 Order Siphonocladiales 



Cladophorq glomerataKebehmg, 1878; Tammes, 1900; Kohl, 1902; van 

 Wisselingh, 1915. 



Sphaeropleacea Cohn, 1867. 

 Order Siphonales 



Vaucheria species Nebelung, 1878. 



Chlorella protothccoides, C. variegata van Wisselingh, 1915. 



