A SYNOPSIS OF THE BRITISH JECIDIACEI. 
By M. C. Cooxz, Esa. 
(Prate XIV.) 
This synopsis, including three or four new, or not hitherto described 
species, has been executed in the hope that it may lead to the re-dis- 
covery and identifieation of two or three others, doubtfully recorded as 
having been found in Britain. It is not impossible that some Conti- 
nental types, as Æ. Cruciferarum, Æ. Ligustri, and Æ. TOES may 
yet be met with. 
RasTELIA, Red. 
Peridium elongated, at length opening by lateral fissures, or a ter- 
minal lacerated mouth.  Spermogonia on the opposite surface, on the 
same or on different leaves. 
l. Restelia cancellata, Reb. (Pear-leaf Reestelia); spots yellow, 
then red, prominent; peridia split to the base into laciniæ, which re- 
main united at the apex.— Cooke, Index Fung. Brit. n. 1407; Gray's 
Nat. Arr. p. 534; Berk. Outl. p. 336. Æcidium cancellatum, Pers. 
Syn. 205; Eng. Flora, v. p. Sn. Cancellaria pyri, Sow. 410. —On 
pear lentes: Not very commo 
2. Restelia cornuta, Tul. (Horn-like Reestelia) ; spots rusty-brown ; 
peridia cylindrical, slightly curved, yellowish-brown ; sporidia greyish, 
at length brown.—Ovoke, l.c. n. 1408; Berk. Outl. p. 336; Gray's 
Nat. Arr. p. 534. — /Ecidium cornutum, Pers, Syn. 205 ; Sow. t. 319; 
Grev. Sc. Cr. Fl. t. 180; Johnst. Fl. Berw. p. 201; Eng. Flora, v. 
p. 373.—On the under surface of the leaves of Mountain Ash. Not 
common. gust. 
3. Reestelia lacerata, Tul. (Lacerated Reestelia) ; peridia clustered 
in tufts, brown, elongated, splitting to the base in segments; spo- 
ridia light-brown.— Cooke, 7. c. n. 1408 ; Berk. Outl. p. 336; Gray's 
Nat. Arr. p. 534. — /Ecidium laceratum, Sow. £. 318; Grev. Sc. Cr. 
Fl. t. 209 ; Johnst. Fl. Berw. p. 201; Eng. Flora, ii. p. 313. Æ. Oxya- 
cantha, Pers. Syn. 206. Æ. Crateegi, Purt. Midl. Fl. iii. p. 570.—On 
the under surface of the leaves, and on the petioles and fruit of the Haw- 
hom. Not uncommon. May to July. 
VOL. II. [FEBRUARY 1, 1864.] D 
