Campbell's Islands.'] FLORA ANTARCTICA. 169 



Hab. Lord Auckland's group ; growing in dense tufts of mosses and Hepatica, on exposed rocks to- 

 wards the lull tops. 



Frondes laxe csespitosse, vix -§- uric, longse, -^ crassitudine, olivaceEe, ascendentes, lineari-oblongse, crassse, con- 

 cavse, hinc inde lobatae, apicibus procumbentibus bilobis, lobis rotundatis integerrimis conniventibus, marguubus 

 integria incurvis. Substantia carnosa, intus spongiosa, laxe cellulosa. 



This being quite unlike any of the hitherto described Hepatica, we attached the generic name ofRiccia from a cer- 

 tain resemblance in the form of it's frond to several species of that genus, but the plant is more probably allied to some 

 frondose Jungermannia, — /. epiplnjUa for instance. The concave frond with entire connivent lobes, par-takes of the 

 habit of that of Collema granulation, Ach., but our plant is certainly a Hepatica. 



Plate LXVT. Fig, V. — 1, a specimen of the natural size; 2, a frond, and 3, a section of the same; magnified. 



XXXV. FUNGI, L. 



(By the Rev. M. J. Berkeley.) 



The number of Fungi collected during the Expedition is very small, in proportion to that of other cryptogarnic 

 plants, with the exception of those found in New Zealand and Van Diemen's Land. In the more southern locali- 

 ties, Fungi may naturally be expected to cease, sooner than Algre, Lichens, and Mosses ; and accordingly, from 

 such localities, the amount of species is trifling indeed. Even where the degree of cold is not sufficient to prevent 

 the growth of Fungi, their fructification is materially affected ; and thus, in the higher forms, the hymenium will 

 frequently be found barren ; while, in some hypoga;ous species, transformations of the sporophores themselves take 

 place, causing the fructifying mass to assume a very anomalous appearance. Some species indeed, as Pilobolus 

 crystallinus and Hydropliora stercorea, seem to flourish most in the frosty nights of autumn, and the species of the 

 genus Chatonypha and Lanosa nivalis thrive either beneath or upon the surface of the snow ; but I know of uo other 

 exceptions to the more general habit of these species, and in these cases, the temperature either does not descend 

 below the freezing point, or, as in the case of the CJiatonypha, vegetation takes place only when the surface of the 

 snow is just melting under the influence of the sun. 



Amongst the more northern islands visited by the Expedition it is probable that some interesting forms, had 

 time allowed, would have rewarded further research ; though, indeed, constant attention was directed, even to the 

 obscurest forms of vegetation, wherever circumstances woidd permit. As it is, there is a considerable number of 

 new species to describe, and some of them possess much interest, especially a new Cyttaria from Cape Horn, the 

 specimens of which are so numerous as to afford an excellent opportunity of examining the structure of this curious 

 genus ; which, like Fodisoma and Gymnosporangium, which infest certain species of Juniper, developes itself on the 

 living branchlets of the deciduous-leaved Beech. Some of the species, like those of other Cryptogams, are identical 

 with plants of the Northern Hemisphere ; and this is especially observable in New Zealand, where the identity is 

 not confined to those families in which it is more usual. 



1. AGARICUS, Z. 



1. Agabicus pyx'ulatus, Bulliard, tab. bQS.fig. 2. 



Var. /3, hepaticus, Fries Epicr. p. 122. Ag. subhepaticus, Batsch El., fig. 211. 

 Hab. Lord Auckland's group ; in the woods near the sea. 



A plant, so far as can be judged from the specimens, which were much damaged by insects before being 



2 L 



