282 Transactions. — Botany. 



the subalpine rocks of Campbell Island with regard to the 

 physical conditions afforded would be an interesting study, 

 but here only a few details can be given regarding certain 

 specified spots. 



On the face of a pi-ecipitous rock facing north-west, not 

 far from the summit of Mount Honey, at an altitude of about 

 538m., the vegetation consists of lichens, mosses, small 

 cushions of Colohanthus siibulatjcs, and stiff rosettes of Abrota- 

 nclla rosnlaris. In the chinks of the rock grows the curious 

 Uttle fern Polypodimn australe 'pumila and Ligusticum antipo- 

 dum, here very much smaller and with stiffer and more coria- 

 ceous leaves than when occurring at a lower level as a 

 meadow-plant. 



On the dry wind-swept rocks of the actual summit of 

 Mount Honey, at an altitude of 568m., are various species of 

 lichens, some mosses. Poly 2}odium australe j)umila, Ligusticum 

 autipodum, Phyllachne clavigera — here a rock-plant, just as 

 the closely related bog-plant Phyllachie colensoi frequently 

 is in the Southern Alps — a small unidentified grass, and 

 Luzula crinita. 



On Lyall's Pyramid, at an altitude of about 153m., facing 

 south, a rock dripping with water is covered densely with 

 mosses, liverworts, Hymnnophyllum multifidum (or perhaps 

 here it was H. villosum) to a depth of 9-3 cm., and through 

 this grows the small Polypiodium and Ligusticum anti- 

 podnm. This has the bases of the leaves densely sheathed 

 with old leaf-bases. The leaves arch upwai'ds and outwards 

 radially, with the result that many of the stiff needle-like 

 pinnae are almost vertical and others horizontal. Each 

 primary leaflet finally arches downwards. In a position such 

 as this the conditions, although on a rock, are not very differ- 

 ent from those of a bog, except that the water will be dis- 

 tinctly more pure. 



A rich vegetation occurs in the hollows between the rocks 

 where there is plenty of soil and moisture. Here, as described 

 above, is a dense carpet of mosses, kc, through which are 

 growing Rostkovia gracilis, prostrate Goprosvia cuneata, Ligus- 

 ticum autipodum, Helichrysum prostratum. Banunculus sub- 

 scaposus, Cclmisia vernicosa, Celmisia chapmanni. 



In wet sheltered hollows of the cliff's on the north side of 

 Lyall's Pyramid Ligusticum autipodum is very abundant, its 

 leaves usually pressed closely against the rock. 



Steep rock-faces are covered for large breadths by the sub- 

 alpine form of Hyvioiop. tnultijlduiu and a species of Gladonia, 

 but where the rock offers a flat surface and peat can form 

 in which moisture can lodge Ligusticum antipodum forms 

 an almost close formation, mixed with Phyllachne clavigera, 

 stunted Goprosma cuneata, Goyrosma rcpens, and a small grass. 



