The Lichens of tJie Bristol Foray. W.Watson. 135 



Biatorina s}-nothea (Ach.) Krb., B. O. saxicola v. DecandoUei Stiz., A. 



B. Griffithii (Sm.) Mass., W. Dermatocarpon lachneum f. rufescens 

 Bilimbia aromatica (Turn.) Jatta.. A. (Ach.), C. 



Bacidia phacodes Krb., B. Verrucaria integra Carr... A. 



B. incompta (Borr.) Anzi., B. V. rupestris Schrad., A. 



Gyalecta truncigena (Ach.) Hepp., B. V. par\-a Deakin., A., C. 



G. cupularis (Ehrh.) Schaer., C. V. calciseda DC, A.. C. 



G. exanthematica Fr.. C. V. marmorea (Scop.) Zahl., A 



Lecanactis premnea (Ach.) Wedd., A. V. nigrescens Pers., A., C. 



Arthonia radiata (Pers.) Ach., C. V. coerulea DC. C. 



var. Swartziana (Ach.) Sydow, A., V. glaucina Ach.. A. 



B., C. V. \-iridula (Schrad.) Ach., C. 



Graphis elegans (Borr.) Ach., A., B., Acrocordia gemmata (Ach.) Ivrb., A. 



C. A. epipolea (Borr.) A. L. Sm., B., C. 



G. scripta (L.) Ach., C. Porina chlorotica (Ach.) Wain.. B. 



Enterographa crassa (DC.) Fee., A., B. P. carpinea (Pers.) Zahl., B., C. 



Opegrapha atra Pers., A., C. Pvrenula nitida (Weig.) Ach.. .4.. B. 

 O. varia Pers., A., B.. C. ' C. 



form diaphora Ach., B. var. nitidella (Flk.) Mudd., C. 



O. vulgata Ach., B. Mycoporum miserrimum Nyl., C. 



A Lecidea and an Arthop\Tenia from rocks at Ashton Court 

 have not been detennined satisfactorily. The Lecidea may be 

 a variety of L. protntsa Fr. The Arthop\Tenia approaches 

 .-1. saxicola Mass., but the spores are too large. Myriangium 

 Duriaei M. and B., which was formerly put amongst the hchens, 

 was abimdant on ash trees in Cleeve Combe. Prof. Darbishire 

 informs me that Peltigera horizontalis was abundant in Cleeve 

 Combe and that he found Sciitida epihlastematica (Wallr.) Rehm. 

 [ = Biatorina epihlastematica A. L. Sm.] parasitic on Peltigera 

 rufescens in the same locality. 



OBSERVATIONS ON SOME SCOTTISH 

 UREDINEAE AND USTILAGINEAE. 



By Malcolm Wilson, D.Sc, F.R.S.E., F.L.S., Reader in Mycology 

 in the University of Edinburgh. 



PucciNiA CiRSii Lasch. 



Uredospores and teleutospores on Carduiis heterophyUus L. 

 Damawav, Forres, collected by Gre\-ille probably in 1S21, and 

 Murthly, Perthshire. Sept. 192 1. 



Gre\"ille's specimen is preserved in the Herbarium of the 

 Royal Botanic Garden, Edinburgh. The species has not been 

 pre\'iou5ly recorded on this host in this country, but has been 

 described on it on the continent. The sori are on pale yello\sish 

 spots and are exclusively epiphyllous. The teleutospores are 

 distinctlv verruculose. P. Andersoni B. and Br. occurs on this 



