EXPLANATION TO PLATE XLI. 



FIG. 1. Synthecium inliiUii'i-inn (Allman). Part of colony, showing opposite branches (enlarged). 



2. fii/iitlii'ciinii ri'i'liini Nutting. Part of colony (enlarged). 



3. f Synthecium marginatum (Allman). Part <if branch (enlarged). (After Allman. ) 



4. SiitiHii'i-iiun rnlinxtiiin Nutting. Part of colony with gonangia (less enlarged). 



5. Synthecium rnltuslmn. Part of branch, front view (enlarged), 

 (i. Niiiitliri-iiint i-nliiixliiiii. Part of branch, side view (enlarged). 



7. Ni/iilhi'ciniii ci/liiiilrii-iint (Kale). Part of branch (enlarged). (After Bale.) 



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