210 THE JOURI^AL OF BOTANY 



L. sylvicoJa var. infulula (Nvl.) Cromb. Blagtlon hill and near 

 Washford (5). 



L. expansa Nyl. Blue Anchor and Broomfield (5). 



L. 2\f/c /I ocnrjm Kvh. Ben Lui (88), Ben Doran (98). Seen on 

 Ben Lawers in 1913. 



Bintorina Jittorella (Nyl.) A. L. Sm. On Devonian slate, 

 BrooniHeld (5) teste T. Hebden. 



B. graniformis (Hag.) A. L. Sm. Shapwick (6). Whitby (62, 

 T. Hebden).' 



B. Lig1itfootiiy2iY. commiitata (Ach.) Mudd. Holford and Chard 

 Common (5). 



B. atropiirpurea (Schaer.) Massal. On trmik of tree in wood 

 above Pitminster (5). According to Mr. Hebden this is form atro- 

 purpurascens (Nyl.) since the hymenial gelatine is persistently blue 

 with iodine. 



Bilimhia sahuJetorum form. nov. viridi's. Differs from the t}^e 

 in the green and thicker thallus. Base of walls, Harden Moor (63), 

 from T. Hebden. 



Bacidia inundata Krb. On siliceous stone, at times inundated. 

 Smith's Combe, Quantocks (5). 



B. mnscorum (Web.) Mudd. On mossy sand-hills, BeiTow (6) ; 

 on mossy soil-cap of wall, Ross (36). 



Buellia canescens (Dicks.) de Not. is frequently found with 

 apothecia in Somerset. A furfuraceous form often occurs. 



B. spuria (Schaer.) Krb. On rock of clift', Woolacombe (4) ; on 

 sarsen stone, Fifield (7). 



B. verrncnlosa (Borr.) Mudd. On wall, Cheddon (5). 



B. coniops (Wahl.) Th. Fr. On shingle of beach, Minehead (5). 



B. confervoides Kremp. On shingle, Bossington (5). 



T,eciograplia parasitica (Flk.) Mass. has no specific preference 

 for growing on Pertusaria communis, it occurs on P. Wulfenii at 

 Broomfield and Winsham (o). 



Rhizocarpon qeoqrapliicum var. atrovirens (L.) Krb. Llanberis 



M. petrceum form impressulum (Leight.) A. L. Sm. is not confined 

 to calcareous rock. It is found on a siliceous rock near Hoadwater 

 (5). — Var. excentricum (Ach.) A. L. Sm. Galmpton and Churston 



li. confervoides D. C. form cinereum (Flot.) A. L. Sm. is a 

 common form of Hints or similar hard siliceous rocks. BlackdoAvns 

 (5), Pevensey (13), Wendover (24), near Stafford (39), Harlech (48), 

 Llanberis (49), Bwlch Gwyn (50). — Form coracinum (Flot.) A. L. 

 Sm. also occurs on flints, Blackdowns (5). — Forms disjyersum (Leight.) 

 A. L. Sm. Cheddon (5), and albicans (Flot.) A. L. Sm. Aisholt 

 (5), are rarer. 



B. obscuratum (Ach.) Mass. Holford (5), near Harlech (48), 

 Llanberis (49). 



(To be continued.) 



