APPENDIX. 



CLASSIFICATION & DESCRIPTIONS OP FUNGI 

 CONTAINED IN THIS VOLUME. 



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7HJCIDIACEI. 



Peridiuni elongated- 

 separating in threads Rcestelia. 



rupturing irregularly ... ... Peridermium. 



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



Peridium immersed Endophyllum. 



Rcestelia, Reb. 



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

 terminal lacerated mouth. Spermogonia on the opposite 

 surface, on the same or on different leaves. 



Roestelia cancellata, Reb. Pear-leaf Rcestelia ; spots 

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

 which 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.) 



Rcestelia corrmta, Tul. Horn-like Kcestelia; spots 

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

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

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

 posed to be a condition of Gymnosporangium Juniperi. (Plate 

 II. figs. 18, 19.) 



Rcestelia 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 Juniper i. (Plate II. figs. 22, 26.) 



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