ALGÆ NOV ZELANDLE. 547 
vaguely congregated but scarcely forming filaments ; the 
periphery of beautifully moniliform elongated radiating fila- 
ments. 
94. Chondrus alveatus, Grev. Fucus alveatus, Turn. t. 239. 
Has. New Zealand, Sir Joseph Banks, R. Cunningham, &c. 
95. Chondrus chondrophyllus, Grev. Fucus chondrophyllus, 
Turn. é: 222. 
Has. Wangari Bay, D'Urville. 
96. lridea decipiens, nobis; pusilla, fronde cartilaginea sti- 
pitata flabelliformi plana dichotoma, laciniis cuneatis 
pluries furcatis ultimis angustatis linearibus acutis, axillis 
rotundatis, margine nunc simplici nunc ramenta linearia 
simplicia pinnatim emittente, favellidiis nune maculæfor- 
mibus immersis per totam frondem sparsis ellipticis ob- 
longisve, nunc in verrucis umbilicatis ad apices ramento- 
rum sessilibus immersis. 
Has. New Zealand, Raoul. 
Two states of this plant are before us, one of which so 
closely resembles Chondrus crispus, that except by the fruit, 
and the ramenta fringing the margin, we cannot distinguish 
it; the other has a mixed character between a very slender 
variety of lridea stiriata, and a broad state of Gigartina 
pistillata. These two forms are very dissimilar, “but one 
specimen referable by its fructification to the first, has more 
the habit of the latter, and thus connects the two. Iridea 
si. afa and J. Radula have a similar double production of 
favellidia, one immersed in the frond, the other crowning 
the ramenta; and J. stiriata presents such wild variations 
in form, and sometimes so closely resembles the wart-bear- 
ing variety of the present species, that, though we have 
never seen any state exactly similar to what we now des- 
cribe, we cannot entirely divest ourselves of doubt as to 
the validity of the present species. And yet the chondroid 
- 
form is so unlike J. Radula, that we cannot wells unite ( 
them. "TO 
97. lridea stiriata, Bory. Fucus asini Tu t. Bie 
Has. Paroah Bay, Lyall. 
