A HISTORY OF BUCKINGHAMSHIRE 



Parmelia saxatilis, Ach. 



Borreri, Turn. 



caperata, Ach. 



physodes, Ach. 

 Lobaria pulmonaria, Hoffm. 

 Peltigera canina, Hoffm. 



spuria, Leight. 

 Physcia parietina, De Not. 



lychnea, Nyl. 



ciliaris, DC. 



pulverulenta, Nyl. 



pityrea, Nyl. 



stellaris, Nyl., sub-sp. tenella, Nyl. 



obscura, Leight. 



var. virella, Leight. 

 Lecanora murorum, Ach. 



callopisma, Ach. 



laciniosa, Nyl. 



vitellina, Ach. 



citrina, Ach. 



aurantiaca, Nyl. 



ferruginea, Ach. 



cerina, Ach. 



pygmaea, Nyl. 



luteoalba, Nyl. 



calva, Nyl. 



variabilis, Ach. 



exigua, Nyl. 



galactina, Ach. 



subfusca, Nyl. 



Parisiensis, Nyl. 



chlorina, Nyl. 



sulphurea, Nyl. 



varia, Ach. 



expallens, Ach. 



var smaragdocarpa, Nyl. Summit of 

 Chiltern Hills 



Lecanora atra, Ach. 



parella, Ach.,f. Turneri, Nyl. 



calcarea, L. 



pruinosa, Nyl. 

 Pertusaria globulifera, Nyl. 



amara, Nyl. 



communis, DC. 



Wulfenii, DC. 



coccodes, Nyl. Burnham Beeches 

 Phlyctis agelasa, Kcerb. 



argena, Kcerb. 

 Urceolaria scruposa, Ach. 

 Lecidea ostreata, Hoffm. 



vernalis, Ach. 



quernea, Dicks. 



parasema, Ach. 



canescens, Dicks. 



stellulata, Tayl. 



myriocarpa, DC. 



casrulea-nigricans, Hoffm. 



tricolor, Leight. 



albo-atra, Hoffm. 



aromatica, Ach. 



sphaeroides, Nyl. 



sabuletorum, Leight. 



effusa, Leight., var. caesiopruinosa, Mudd. 



concentrica, Leight. 



truncigena, Ach. 

 Opegrapha herpetica, Ach. 

 Verrucaria nigrescens, Leight. 



glaucina, Mudd. 



fuscella, Turn. 



viridula, Ach. 



. chlorococca, Leight. Stokcnchurch (Lar- 

 balestier) 





Two of the foregoing, Verrucaria chlorococca^ Leight., found by Mr. 

 Larbalestier in Stokenchurch Woods, and Ramalina farinacea^ Ach. f. 

 phalerata found at Stowe Park by Mr. Holmes, are only known in 

 Britain for these localities. The curious variety of Lecanora expallens^ 

 characterized by the bright emerald green apothecia, is found nowhere 

 else in Great Britain (Grevi//ea, xviii. 69). 



THE FRESHWATER ALG^ 



The knowledge of these organisms, so far as the county is concerned, 

 is almost a blank; the boggy portions of Burnham Beeches, the ponds on 

 the Chiltern Commons, the anastomosing ditches by the Thames, and 

 the sphagnum bogs of the Brickhill district are places which will well 

 reward the searcher. 



FUNGI 



The county has very favourable localities for fungi, and in some of 

 the woods on the Chilterns, as well as those at Black Park and the 



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