436 BEY. J. M. CBOMBIE ON LICHEXS 



Tribe Lecakobei. 



Pannabia rubiginosa, f. cinerascens, Nyl. 



Thallus greyish ; otherwise similar to the type. 

 On rocks ; very sparingly, and only two apothecia visible on the speci- 

 men. Coll. Balf. no. 2321 . 



Two other sterile specimens may belong also to this form. 



* 



P. r., var. dispartita, Nyl. ** Forsan propria species, thallo tenuius 



diviso, effuso. Apothecia non visa." — Nyl. in litt. 

 On rotten stumps on the ground ; sparingly. Coll. Balf. no. 2313. 



P. luridula, Nyl.,sp. n. "Thallus luridus, squamulosus, squamulis 

 crenatis vel crenato-lobatulis, subintricatis ; apothecia testaceo-rufa 

 vel testaceo-rufescentia (latit. circiter 1 millim. vel minora), bene 

 lecanorina, margine thallino crassiusculo erenato ; sporse ellipsoidese, 

 longit. 0016-0-025 millim., crassit. 0-009-0-01 1 millim. Iodo gela- 

 tina hymenialis caerulescens. 



"Affinis P. immixta, Nyl., sed color thalli luridus et hypothallus niger 

 ullus vix visibilis etc." — Nyl. in litt. 



On the ground ; very sparingly gathered. Coll. Balf. no. 2208. 



COCCOCARPIA MOLYBD^A, Pers. 



On branches of trees ; sparingly and infertile. Coll. Balf. no. 2243. 



Heppia Rodriguesii, Cromb., sp. n. Thallus cervino - luridus, adnato- 

 squamulosus, squamulis planiusculis vel alibi convexiusculis, subangu- 

 loso-rotundatis (latit. 1-2 millim. vel ssepius minoribus, crassit. cir- 

 citer 25 millim.), contiguis aut subdispersis ; apothecia rubello- 

 carnea, concaviuscula, innata (latit. 0*2-0-3 millim.); thecae polysporae ; 

 sporse breviter ellipsoidese vel oblongo-ellipsoideae, longit. 0004- 

 0006 millim., crassit. 0-0025-0-0035 millim., paraphyses gracile- 

 scentes. Iodo gelatina hymenialis caerulescens, dein thecse praesertim 

 violacee rubescentes. 



This is a fine species, which is at once distinguished by the 

 colour of the apothecia. The syngonimia are usually sufficiently 

 small, and then contain but few gonimia. With the exception of 

 the colour of the apothecia, it presents almost the appearance of 

 Lecanora cervina, Pers. (squamulosa, Schrad.). 



On rocks ; very sparingly gathered, and only a few apothecia visible. 

 Coll. Balf. nos. 2302 and 2233. 



Lecanora murorum, var. lobulata (Smrf). 



As the thallus is not sufficiently developed in the specimen seen, 

 the plant is somewhat uncertain, although the apothecia and spores 



