COLLECTED AT T1IE CAPE OF GOOD HOPE. 167 



Tribe Ramallnei. 



Ramalina Yemensis (Ach.). 

 On the trunks of trees ; fertile. 



R. cuspidata [Ach.). 



On rocks ; apparently common and fertile. 



■ 



Tribe Parmeliei. 

 Sticta crocata (L.). 



On mossy roots of trees ; barren. 



S. gilva (Thunb.). 



On trunks of trees, sparingly ; fertile. 



* 



S. quercizans (Ach.). 



On mossy rocks; small and infertile. 



S. PULMONARIA, vai*. HYPOMELA, Del. 



On trunks of trees ; apparently common, but scarcely fertile 



S. aurata, Ach. 



Amongst mosses on rocks ; barren. 



Parmelia perforata, Ach. 



On trees ; infertile or scarcely fertile. 



On one specimen a single apothecium is present, but without 

 spores, and no spermogones are visible. 



P. atrichoides, Nyl., sp. n. Subsimilis P. atrichce, Nyl. Obs. L. 

 Pyr. Or, p. 1/, sed sporibus minoribus (longit. 0*008—0*011 inillim., 

 crassit. • 0*004-0*006 millirn.). Spermatia subbifusiformia, longit. 

 0*005-0-006 millirn., crassit. 00006 millim. 



On rocks ; apparently not unfrequent. 



P. molybdiza, Nyl., sp. n. Affinis P. atrichoidi (etiam reactione 

 CaCl + conveniens), sed thallo minore facile plumbeo tincto et magis 

 adnato atque apotheciis lecanorinis. Sporae longit. 0*009-0*011 

 millim., crassit. 0*006 millim. Spermatia bifusiformia, longit. 0006- 

 0*007 millim., crassit. 00005 millim. 



On rocks ; very sparingly gathered. 



P. suBiEQUANS, Nyl. Sat similis P. Borreri, et forsan solum varietas, 



differens apotheciis, receptaculo firmiore nee soredioso-dissoluto. 

 Apothecia juniora margine receptaculari radiatim sphinetrino-striato. 

 Sporae longit. 0*014-0*015 millim., crassit. 0*009-0 01 1. Iodo gelatina 

 hymenialis caerulescens,thecae praesertim tinctae et deinde violascentcs. 

 On the trunks of trees, amongst mosses. 



P. Conspersa (Ehrh.). 



Amongst mosses on rocks; sufficiently similar to the European lichen. 



A state also occurs having the thallus internally sub-rose-coloured. 



