282 PBOr. ALLMAN ON NEW GENERA 



Plate XII. 



Fig. 1. Selaginopsis fusca and Campanularia grandis, natural size. (For mag- 

 nified details of Selaginopsis fusca, see PI. XIX. figs. 1, 2.) 

 la, a. Selaginopsis fusca. 



1 b, b, b. Campanularia grandis. 



2. Campanularia grandis and Camfamdaria gracilis, magnified. 



2 a, a. Campamdaria grandis. 



2 b, b, h. Campanularia gracilis growing over tlie sm-face of Cain- 

 panularia grandis. 

 Young individuals with their hydrorhizal disks have attached 

 themselves to the bydrothecaj of the large Campamdaria. 



3. Gonangium of Campanularia grandis, magnified. 



4. Campamdaria g?-acilis, natural size. 



Plate XIII. 



Figs. 1, 2. Sertularella Johmfoni. 



1. Natural size. 



2. A portion, magnified. 



3, 4. Sertularella Integra. 



3. Natural size. 



4. A portion, magnified. 



5-7. Sertidarella ejnscoptcs. 

 6. Natural size. 



6. A portion, magnified. 



7. Outline of transverse section of gonangium. 



Plate XIV. 



Figs. 1, 2. Serttdaria arcticu. 



1. Natural size. 



2. A portion, magnified. 



3-7. DesmoscypJius BusJcli. 



3. Natural size. 



4. A portion of main stem and branch, magnified, lateral view. 

 6. A portion of a branch, magnified, front view. 



6. Same, back view. 



7. Same, oblique view. 



Plate XV. 

 Figs. 1-3. Synthecium elegans. 



1. Natural size. 



2. Magnified. 



3. A portion with gonangia, still further magnified. 



Fig. 4. Halicornaria saccaria, natural size. (For magnified details of this 

 species see PL XXII. figs. 1, 2.) 



