British Clavariae. A. D. Cotton & E. M. Wakefield. 167 



whole-heartedly helped mention may be made of Mr. C. Cross- 

 land, the Rev.'W. L. W. Eyre, Miss A. Fry, Mr. C. H. Spencer 

 Perceval, and Mr. E. W. Swanton. We have also received 

 specimens from American, French, Swiss and German botanists, 

 whilst the Abbe G. Bresadola was always ready to supply 

 specimens and notes from the Austrian Tyrol. For a collection 

 of specimens from the classical ground near Upsala we are 

 indebted to Mr. C. G. Lloyd. To these mycologists and to 

 all others not mentioned by name we record our sincere thanks. 

 In the case of certain rare species we have indicated the 

 localities. These are limited to Britain and include only those 

 from which material has been received during the preparation of 

 this revision. No attempt has been made to investigate the 

 specimens contained in the public and private herbaria of this 

 country. 



KEY TO THE BRITISH SPECIES OF CLAVARIA. 



Plants branched. 

 Plants when mature more or less yellowish, 

 spores ochraceous. 



(a) Plants large, up to lo or 15 cm. high; 

 spores 9-20^ long. 



Plant fragile, pale when dry; spores 

 pale ochraceous, minutely granular, 



11-14 X 4-5/x 



Plant somewhat fragile, dark when 



dry; spores deep ochraceous, echinu- 



late, 15-16 X 6-7W ... 



Plant white to ochraceous, tips of 



branches rosy; spores striate or 



reticulate 



Plant buff-pink, tips of branches 



yellow; spores minutely granular ... 



(b) Plants medium-sized, up to 5 cm. high; 

 spores 6-iofi long. 



Growing on wood, vinous to brown- 

 ish yellow 



Growing on the ground in coniferous 

 woods 



Plant turning green when bruised 

 Plant not turning green when 

 bruised 



Plant slender, flaccid; spores 



6-7 X 3M 



Plant stout, rigid ; spores 7-9 x 4/j. 

 . Plants variously coloured, spores hyaline. 



(a) Plants white. 



Branches cristate; spores large, sub- 

 globose, 9-12 X 6— 8/t 

 Branches not cristate; spores small, 

 globose, 3-5M 



(b) Plants greyish. 



Spores subglobose, 7-10 x 6-8/1* 

 Spores very large, pip-shaped, 12-16 

 X 7-5-8m 



1. C. flava 



2. C. Broome i 



3. C. botrytis 



4. C. formosa 



5. C. stricta 



6. C. abietina 



7. C. flaccida 



8. C. Invalii 



g. C. cvistata 



10. C. Kiinzei 



11. C. cinerea 



12. C. gigaspora 



