of fungi, for we are taught to believe that fungi, having no chlorophyl 

 and not being able to decompose carbon dioxide, must derive nutri- 

 tion from organic carbon compounds. De Bary divides fungi into 

 Saprophytes and Parasites, but these genera, growing loosely attached 

 on living branches which they apparently do not attack, surely do 

 not get their nutrition from their "hosts." There are other fungi, 

 Polyporus fruticum of the tropics and Radulum Ballouii of our own 

 flora, which seem to me to grow in about the same way. 



4 



Fig. 773. 



Polyporus papillatus. 



Mycocitrus aurantium was well illustrated and described by 

 loeller, and it is not necessary to repeat its characters. The dried 

 Borneo is much paler (about light, ochraceous salmon of Ridgway) 

 n Moeller s figure made from the fresh plant, and the specimens are 

 arger, one of them measuring four inches in diameter. The spores and 

 perithecia are very similar to those of Hypocrea, in fact Mycocitrus 

 ""If }\ K d a r S a large H yP cre a- The spores have a septum (two- 

 ^ ), but it is often indistinct. They are hyaline, smooth, 4x6 mic. 



566 



