22 



the wliolo sitrfiice much and irregularly comtgated; apothecia reddish 

 brown, turning brownish black, margin inflexed, deeply crenate; spores 

 eight, colourless, elliptical, beautifully crenulate, simple, moderate ; 

 medulla white (K — C — ), as well as upper surface. 



A curious and somewhat anomalous lichen: the upper surface, under a 

 lens, is seeti to be minutely rugose and almost farinose, while the under 

 presents a fibrous appearance, the fibres arranged nearly parallel, and 

 closely appressed ; spermogonia minute, papilliform, reddish, turning 

 bluish black, situate near the margins of the lobules. On trees, 

 Wellington. 



Lecidea rivulosa (Ach.). — So far as I know, this is the first notice of 

 this common lichen having been found in New Zealand. It differs in no 

 essential from specimens foimd in Britain. 



Trypethelimn connivens (Nyl.). — The spores of the specimens sent, 

 instead of remaining colourless, as Nylander states, turn ultimately to a 

 brownish black, and the ostiolum shows a beatitiful orange instead of 

 being nigrescent; difi'ei-ences which, although worthy of remark, scarcely 

 constitute a specific distinction. — On bark, Wellington. 



Verrucaria cyrtospora (Sp. Nova). — Thallus white, smooth, glabrous; 

 apothecia black, prominent, subglobose; perithecium entii'e; spores eight, 

 narrowly fusiform, curved, brown, with four to eight rectangular nuclei 

 (•03 X ■004 mm.); paraphyses long, filifoi'm, occasionally bi-anched. — On 

 bark, with Ver. glahrata. 



Lecidea amaura (Sp. Nova). — Thallus cinereo-virescent, thin, scat- 

 tered, leprose or evanescent ; apothecia small, scattered or conglomerate, 

 subglobose, immarginate, obscure, within; spores eight, colourless, 

 fusiform, apices obtuse, mostly curved, one to three septate, 

 •009 — -016 X -003 m m. ; paraphyses indistinct; hypothecium 

 nearly colourless. — On palings, Wellington. Allied to L. denigrata 

 (Nyl.). 



Pannaria crustata (Sp. Nova). — Thallus dark greenish olive, squamu- 

 loso-crustaceous, areolato-diffract; squamules largish, rugose, round with 

 crenulate upturned margins ; hypothallus black, evident ; apothecia 

 reddish brown, moderate, flat, or somewhat convex when matured, with 

 a proper margin of same colour, and an elevated crenated thallodal 

 margin, which is often separated from the former by a chink, pale 

 within ; hypothecium pale brown ; epithecium brownish ; paraphyses 

 matted together at apices; spoi'es eight, simple, ellipsoid — or, more 

 frequently, one or other, or both apices, acute — margins distinctly 

 crenulate, moderate (-014 X -008 m m). — On stones, Wellington. 



