EXPLANATION To PLATE XXII. 



KM;. 1. H,rlii/iii-illii niiii-iiiii-iliii-i-ii Allinaii. Part of branch with gonangium (enlarged). (After Allmau.) 



L'. Si'i'tiiliircUti luri/iilii (Trask). Part of colony with gonangium (enlarged). 



3. Ni'iiii/in-i //a luri/iilii. Distal part nf liran'rh (enlarged). 



4. 5. Si-rliilnrellii hin/iiln. Ends nf liy.lnithec;!', showing teeth (greatly enlarged). 



(i. Si-rliiliin-llii xi, linlili KirclnMipaticr. Part of branch (enlarged). (After Kirchenpauer. ) 



7. Ki-i-iii/iii-i-llii xii/Hi/ili. < iuiiaii^iiun (enlarged). (After Kirchenpauer. ) 



5. Hi-i-tiilin-i-l/ii xiilitlirliiitiiiiin Kirchenpauer. Part of colony, showing branching I enlarged). 

 !i. ,V;-//i<jv// xiilitlirliiiltiniii. Ilydrotheca, showing margin (greatly enlarged). 



III. K-rltilin-i'llii aiiliilii-liiiln inn. Einlof hydrotlii-ca, showing operoulum (greatly enlarged ). 

 11, li'. Si-i-itiliiri /In xn/iiiii-liii/iiuifi. Gonangia (enlarged). 



236 



