XIV 



LIST OF PLATES. 



PLATE VI. 



1. Laminaria Phyllitis. 



1 a, slice of frond. 



2. Lomentaria oralis. 



2 a, a branchlet with spore- 



concepiacles. 



2 b, a branchlet with te- 



traspores. 



3. Porphyra vulgaris. 



3 a, vertical section of 



frond. 



PLATE VII. 



1. Chorda lomentaria. 



1 a, transverse section of 



part of frond. 



2. Padina pavonia. 



2 a, recurved margin. 

 2 b, fringe. 



2 c, young sorus. 



2 d, old sorus. 



3. Dictyota dichotoma. 



3 a, sorus. 



4. Elachista fucicola. 



4 a, branched thread of 



tubercle, with spore. 



5. Melobesia polymorpha. 



5 a, portion of frond, show- 



ing spore-concepta- 

 cles. 



PLATE VIII. 



1. Odonthalia dentata. 



1 a, branchlet with spore- 

 conceptacles. 



1 b, branchlet with sti- 



chidia. 



2. Nitophyllum punctatum. 



2 a, sorus. 



3. Catenella opuntia. 



3 a. fronds, 



3 b, branch with spore-con- 

 ceptacle. 



PLATE IX. 



1. Polysiphonia parasitica. 



1 a, branchlet with spores. 



2 b, branchlet with tetra- 



spores. 



2. Gelidium corneum. 



2 a, branclilet with spores. 



2 b, branchlet with tetra- 



spores. 



3. Halymenia ligulata. 



3 a, section of frond with 



spores. 



4. Griffithsia corallina. 



4 a, part of branch with 



tetraspores. 

 4b, spore- clusters. 



PLATE X. 



1. Bonnemaisonia aspara- 



goides. 



1 a, branch with spore- 



conceptacles. 



2. Wrangelia multifida. 



2 a, part of a branch. 



2 b, tetraspores. 



3. Callophyllis laciniata. 



3 a, spore-conceptacles. 



PLATE XI. 



1. Nitophyllum laceratum. 



1 a, marginal processes 



with tetraspores. 



2. Chylocladia articulata. 



2 a, part of a branch with 



spores. 



3. Gloiosiphonia capillaris. 



3 a, branchlet with fructi- 



fication. 



4. Callithammon plumula. 



4 a, spore-clusters. 



PLATE XII. 



1. SphEerococcus coronopifo- 



lius. 



1 a, branchlet with spores. 



2. Maugeria sanguinea. 



2 a, midrib with spore- 



leaflets. 



