APPENDIX. 



CLASSIFICATION & DESCEIPTIONS OP PUNGI 

 CONTAINED IN THIS VOLUME. 



JSCIDIACEI. 



Perjdium elongated — 



separating in threads Rmsielia. 



rupturing irregularly Feridermium. 



Peridium abbreviated, or semi-immersed ... Mcidivm. 



Peridium immersed Endophyllum. 



KCESTELU, Reb. 



Peridium elongated, at length opening by lateral fissures, or a 

 terminal lacerated mouth, ^ermogonia on the opposite 

 surface, on the same or on different leaves. 



BoBstelia cancellata, Keb. Peak-leap Ecestelia ; spots 

 yellow, then red, prominent ; peridia split to the base into lacinise, 

 vfhieh remain united at the apex. — On Pear leaves. Not very 

 common. Autumn. Supposed to be a condition of Podisoma 

 Sabina. (Plate II. figs. 20, 21.) 



Roestelia eormita, Tul. Horn-like K(estelia; spots 

 rusty-brown; peridia cylindrical, slightly curved, yellowish- 

 brown ; spores greyish, at length brown. — On the under surface 

 of the leaves of Mountam Ash. Not common. August. Sup- 

 posed to be a condition of Gymmsporangium Juniperi. (Plate 

 11. figs. 18, 19.) 



Bcestelia lacerata, Tul. Lacerated Rcestelia ; peridia 

 clustered in tutts, brown, elongated, splitting to the base in 

 segments ; spores light brown. — On the under surface of the 

 leaves, and on the petioles and fruit of the Hawthorn. Not 

 uncommon. May to July. Supposed to be a condition of 

 Podisoma Juniperi. (Plate II. figs. 23, 26.) 

 o 



