534 



-ECIDIACEI. 



exs.no.8i. Sow.t.AlO. Eng. Fl. v. p. S7S. Moug.exs. no. 184. 

 Kl. exs. no. 97. Gard. Chron. 1862,/). 689. 



On pear leaves. Autumn. [Maine, U.S."' 



The Podisoma sahince is related to this plant, according to CErsted, as one 

 of its forms— see no. 1517. ante. 



1598. 



Rcestelia coxnuta. Tul. " Horn-like Koestelia." 



Spermogones. Spots rusty-brown, usually distinct from the 

 tufts of peridia ; spermatia white. 



Protospores. Spots rusty-brown ; peridia cylindrical, 

 slightly curved, yellowish-brown ; spores greyish, at length 

 brown. — Cooke M.F.t. 2, f. 18, 19. Cooke exs. no. 1. Fckl. exs. 

 no. 284:. Seem. Journ.ii. p. 33. Kl. exs. no. 96. ^cid, cornutum. 

 Eng. Fl. v. p. 373. Sow. t. 319. Grev. 1. 180. Moug. exs. no. 183. 



On the under surface of the leaves of the mountain ash (Pyrus 

 aucuparia.) August. Not common. {Fig. 218, enlarged.) 



1599. Iloestelia lacerata. Tul. " Fringed Ecestelia." 



Spermogoxes. 



Protospores. Peridia clustered in tufts, brown, elongated, 

 splitting to the base in segments; spores light brown. — Cooke 

 M.F.t.2J.22-2Q. Cooke es.no. 2. Fckl. exs. no. 286. Berk. 

 exs. no. 111. Seem. Journ. ii. p. 33. Gard. Chron. 1861, p. 336. 

 Cooke L.F. no. 50. uEcid. laceratum. Sow. ^.318. Eng. Fl. v. p. 

 373. Grev. t. 209. Rav. exs. v. no. 96. 



On the under surface of the leaves, and on the petioles and fruit 

 of the Hawthorn. Common. May to July. [New York, &c.] 



This species is said also to be in some manner associated with Podisoma 

 Junijieri — see no. 1516. ante. 



Gen. 183. 



FERIDERMIUra, Chey. 



5. Fig. 219. 



Peridium elongated, at length 

 bursting irregularly. Spermo- 

 gonia scattered, conspicuous. — 

 {Fig. 219.) 



a. 



