i 



Plate 2. — Mycorrhizae in Scot's Pine, Pinus syl- 

 ■ucstris. — Dr. Frank started modern mycorrhizal study 

 with a description of sucIt structures in pine and 

 beech. This illustration shows both coralloid and 

 nodulous forms of mycorrhizae. and was originally 

 published by Meux. {Reproduced from Rayner's 

 Mycorrhiza, Phitc VI). 



