260 
Fig. 1. 
Fig. 1. 
Fig. 1. 
2a. 
d 
9 = = 
MR. E. M. HOLMES ON MARINE ALGZE FROM JAPAN. 
. Puate VIII, : 
Dictyopteris undulata, nat. size. 
. Grateloupia imbricata, portion of frend, nat. size, 2b. Transverse 
section of frond, magnified. 
. Gymnogongrus divaricatus, portion of frond, 4 nat. size. 30, Trans- 
verse section of frond, magnified. 
? Chondria crassicaulis, Harv., portion of frond, nat. size, bearing 
antheridia. 4b. Transverse section of stem. 4c. -Antheridia in 
situ, magnified. 
Pare IX. 
. Chondrus elatus, nat. size, with cystocarps. 10. Transverse section 
of frond. 
. Chondrus ocellatus, nat. size. 2b. Transverse section of frond, magni- 
fied. 2c. Section of frond through a cystocarp, magnified. 
. Grateloupia flabellata. 3b. Transverse section, magnified ; 3 e, more 
magnified, showing cruciate tetraspores in situ, 
Prate X. 
Cladophora Ohkuboana. 
. Grateloupia acuminata, 26. Transverse section of frond showing 
cystocarp. 2c. Portion of ditto, enlarged. 
. Grateloupia furcata, nat. size. 36. Transverse section, magnified. 
Pare XI. 
. Grateloupia Ohkuboana, nat. size. 15. Transverse section of frond, 
magnified. 
Gymnogongrus furcellatus, var. japonicus, portion of frond, nat. 
size. 
. Hypnea Saidana, portion of frond, nat. size. 3 b. Transverse section 
of frond, magnified. 
Prats XII. 
Padina arborescens, nat. size. 
Polyzonias fissidentoides, nat. size. 2 b. Portion of frond, magnified. 
Grateloupia gelatinosa, nat. size. 
Grateloupia japonica, nat. size. 
Grateloupia acutiuscula, nat. size. 
Nemaleon pulvinatum, showing a branched filament, magnified. 
