334> OUTLINES OF BRITISH FUNGOLOGY. 



2. populina, IJv. On Pojndus nigra. 



3. Tremulse, Tul. On Populus tremula. 



4. betulina, Besm. On birch. 



5. salicina, Lev. On sallow. 



1C4. LECYTHEA, Lev. 



Stroma surrounded or sprinkled with elongated abortive 

 spores. Spores free, invested with their mother-cell, or eon- 

 eatenate. 



* Spores free. 



1. Rubomm, Lev. On brambles. 



2. Eosse, Lev. On rose. 



3. popnlina, Lev. On poplar. 



4. Eupliorbise, Lev. On spurge. 



5. epitea, Lev. On willows. 



6. mixta. Lev. On willows. 



7. saliceti, Lev. On willows. 



8. Baryi, B. {no. 755). On grass. 



9. Valerianae, B. On Valeriana officinalis. 



** /^ores invested with another cell (Pliysonenia, Lev.). 



10. gyrosa, Lev. On raspberry. 



*** Spores concatenate (Podosporium, Lev.). 



11. capra^amm, Lev. On sallow. 



12. Lini, Lev. On Linion catharticum. 



165. CYST OPUS, iy«7. 



Reeeptacle consisting of thick branched threads. Spores 

 concatenate, at length separating. 



1. candidus, Lev.; Grev. ^.251. On Capsella, Sisi/mdrimn, etc. 



166. POLYCYSTIS, Lev. 

 Spores irregular, consisting of several cells. 



