ON LICHENS COLLECTED AT THE CAPE OF GOOD HOPE. 165 



for in his MS. description attached to the specimen it is thus 

 characterized :— t€ Corollse labium alterum latum suborbiculatum 

 obscure trilobum, alterum 2-partitum deorsum flexum segmento 

 quolibet ambitu subrotundo adeo ut corolla primo aspectu 

 3-petala videri possit, 

 Walter's plant as well as with Commerson's type, and which is, 

 indeed, very well shown in the rough original figure in Lamarck's 

 Dictionary. 



>> 



Mr 



Lichenes capenses : — An Enumeration of the Lichens collected 

 at the Cape of Good Hope by the Rev. A. E. Eaton during the 

 Venus-Transit Expedition in 1874. By the Kev. James M. 

 Ckombie, F.L.S. &c. 



[Read February 3, 1870.] 



Although various species of Cape Lichens were enumerated by 

 Acharius and Thunberg, as also by Flotow, and more especially by 

 Dr. Nylander in his Enum. Gen. and Synopsis, yet the first (and 

 hitherto the only) separate list of such published is that of Massa- 

 longo, who, in ' Mem. dell' I. E. 1st. Venet. di Sc.' Ac., x. 1861, 

 pp. 33-82, records and describes those collected by Dr. Wawra, 

 Surgeon of the corvette ' Carolina,' in 1857-58. These amount in 

 all to 48 species, with a fair proportion of varieties, of which 23 

 species are described as new, though some deductions must be made 

 from this. In the Appendix, pp. 83-90, he also enumerates 19 

 other species, which had been met with by previous collectors, 

 such as Ecklon, Breutel, Drege, Zeyher, &c, several of which, how- 

 ever, are also to be deleted. The Cape Lichens thus recorded 

 by Massolongo seem to have been collected in a different part or 

 parts of the Colony from those w r hich form the subject of the 

 present memoir, so that little or no comparison can be instituted 

 between them, only some 12 species being common to the two lists. 

 The only locality examined by Mr. Eaton during the short stay of 

 the Venus-Transit Expedition at the Cape, on its way to Kergue- 

 len's Land, was Table Mountain, to which, however, he was able 

 to make only a very few excursions. Unfortunately that to 

 the summit was interrupted by mist ; so that but few specimens 

 were there gathered, though it would have been interesting to 

 know what phyto-geographical types occur at that altitude* in this 

 region. In the determination of the valuable collection of Lichens 





