338 Holmes —New Marine Algae. 
were admissible.’ The present species forms a still closer 
connecting link between the two genera, since the incurved 
callithamnioid filaments, which cover the frond in Dasyphila , 
are confined to the tips bearing favellae and tetraspores in 
P. cryptocarpa, , the rest of the frond resembling Ptilota striata , 
in which species they are strictly confined to the favellae. 
The chief difference between the two genera appears to be in 
the terminal position of the favellae on the branchlets and 
pinnules, and in this feature P. cryptocarpa certainly more 
nearly approaches Dasyphila . We have not, however, been 
able to observe in the favellae a ‘ placentula 5 from which the 
spores radiate, and which is said to be present in Dasyphila . 
The favellae ap'pear in the specimens I have examined to be 
2 or 4-lobed, each lobe surrounded by a hyaline periderm. On 
the whole, therefore, it seems to me preferable to place this 
remarkable plant in Ptilota . 
Glaphyrymenia porphyroidea, Schmitz, MS. n. sp. 
Fronde late expansa gelatinoso-membranacea , opaca , oblongo - 
rotundata , margine , undidata ; colore roseo-purpnreo ; favellis 
sparsis in strato medio immersis. 
The structure of the frond and of the favellae indicates that 
this plant belongs to the genus Glaphyrymenia. The plant, in 
the single specimen received, is somewhat injured, so that it is 
difficult to judge of the size or shape of the entire plant. The 
frond appears to consist of two or three broad lobes of an 
oblong or rounded-oblong form, about five inches long by 
three broad. The surface is not glossy as is usual in Porphyra , 
but dull and lustreless. The substance, when wetted, is seen 
to be soft and gelatinous, although very thin. The colour is 
of a peculiar pale purplish rose tint. 
Hab. 'Cape of Good Hope,’ Dr. H. Becker. 
I had from imperfect sections concluded that this plant 
belonged to the genus Flalymema , but Professor Schmitz has 
pointed out that the cystocarp presents more nearly the 
structure of Glaphyrymenia . 
