1. Antennaria scoriadea, Berk.; spongiosa, floccis fasciculatis sursum lateraliter connexis, peridiis subellipticis irregularibus. (Tab. LXVII. Fig. III.) Hab. Lord Auckland's group and Campbell's Island; on the branches and twigs of several shrubs and trees, but especially of Dracophyllum longifolium. Spongiosa, ramos incrustans. Flocci ¼-1/2 unc. longi, fasciculati, superne processibus brevibus lateralibus more Zygnematis connexi, subtus e membrana reticulata vel mycelio repente nascenti, filamentis tenuioribus immixti, erecti, irregulariter ramosi. Articuli moniliformes vel praesertmi in filamentis ultimis continui, laeves, nucleo globoso so- litario. Perithecia subelliptica, irregularia. A very singular substance, which must strike the traveller through the woods especially of New Zealand or of Lord Auckland's group, in both which localities it is very abundant, resembling charcoal, and sometimes so widely diffused that the branches look as if burnt. The colonists of the former islands call it "the black moss." Distinguished from A. pannosa and A. Robiimonii by its long fasciculate threads, giving it exactly the habit of Scorias spongiosa. The finest specimens have a rigid bristly appearance, quite different from that of any other species of the genus. This has been also gathered in Valparaiso by Mr. Bridges, and at the Swan River by Mr. Drummond. I have not been able to trace the developement of the peridia in the Auckland Island specimens, but it would ap- pear that, as in M. Robinsouii, M. and B., they arise either from a swollen articulation or from a process given off by an articulation, in either case they are dependent on a simple metamorphosis of the latter. Plate LXVII. Fig. III. — 1, a plant of the natural size ; 2, flocci from the base of the tufts, with a portion of the cellular matrix ; 3, flocci from the summits of t he tufts, laterally aggregated ; 4, sporangia ; 5, portions of the filaments in various states : — all more or less highly magnified.

Campbell's Island

on the dead leaves of Uncinia Hookeri, Boott.

This species is manifestly different from the small form of H. culmigenum, and the nature of the asci and paraphyses are further distinct, being in the latter plant shorter and of a different form, with the apices of the paraphyses curved or curled. The apiculate extremities may not prove to be a constant character, though the probability is that it will, at least in full grown specimens.