TUE MAUINE ALOJE OF NEW ENGLAND. 201 



PLATE X. 



J. II. lilakf and ir. a. Farlow. 



Fig. L Spi/ridia JilamtntoM, Harv. ; axi.s with braiuh boaiin^' autlieridia, a. 

 200 ilia in. 



2. CaUithamiiioti coripnhosum, Lyngl). : branoli with aiithcriilia. 200 diaiii. 



3. Tntftipohlio virgatula. Harv. ; ^;ho^^in>; the undividtd spon-s, <i, o. 200 diam. 



4. iiriffithtiia liorfu liana, Vnvlow ; tipot'iualo plant with autht'iidia. 400 diam. 

 .'>. Thr sanu' ; portion of totrasporic phint with ti'trasporcH, a, and invohicro, b. 



200 diam. 



PLATE XI. 



J. U. lilaki and W. G. Farlow, 



Fig. 1. CaJIithanniion Baileyi, Harv. ; pLint with tetraspores: a, before separation from 

 the mother-cell; d, free from the mother-cell. 200 diam. 



2. The same; plant bearing hinate cystocarp. 



3. Criffithsia Bornitiana, Farlow; plant bearing cystocarp (favella). 2(M3 diam. 



PLATE Xn. 



J. H. Blake and W. G. Farloic. 



Fig. I. XemaUon multifidum, Ag. ; dissection of onter part of the plant to show the 

 cystocarp. 400 diam. 

 2. Spyridia tllamentosa, Ilarv. ; tip of female plant with a donble cystocarp, the 

 right-hand portion of hgnre representing the cystocarp and branch in sec- 

 tion; the left-hand cystocarii being seen superficially. 400 diam. 



PLATE XIIL 



J. II. Blake and W. G. Farlow. 



Fig. 1. Pohjsiphonia Olncyi, Ilarv. ; branch with autheridinm, a. 200 diam. 



2, 3, and 4. GrinnclUa Americana, Ilarv. : Figs. 3 and 4 represent the authcridia 

 seen from above and in section, a ; Fig. 2, section through a cystocarp. 400 

 diam. 



PLATE XIV. 



J. II. Blake and TV. G. Farlow. 



Fig. 1. Petrocelis crucnta J. Ag. ; dissection of frond showing the tetraspores, a, a. 400 

 diam. 

 2. lihahdonia icnera, J. Ag. ; transverse section of frond showing cystocari) and 

 cari)ostomc. 200 diam. 



PLATi: W. 



./. II. Blake and W. G. Farlow. 



Fig. 1. Dasya elegann, Ag. ; branch with stichidinm bearing tetra.'^pores. 300 diam. 



2 and f). Champia parvula, Harv. : Fig. f), portion of frond bearing a cystocarp, a; 



slightly enlarged ; Fig. 2, ser tion through a, showing arrangement of 8i>orc8, 

 carpogenic cell, and carpostome. 4<X) diam. 



3 and 4. rolyniphonui Ilarveyi, Dai!.: Fig. 4, branch witli cystocarp; Fig. 3, sec- 



tion through the siimc, showing spores and cari)ogenic coll. 400 diam. 



