A SYNOPSIS OF THE BRITISH ACIDIACEI. 39 
98. Æcidium: Sanicule, Carm. (Sanicle ZEcidium) ;- maculis pur- 
purascentibus, subincrassatis, minutis, sparsis, subrotundatis ;  peridiis 
congestis, hypophyllis, semiorbieularis, demum expansis, margine late 
dentato ; sporidiis luteolis, ellipticis.— Cooke, l c. n. 1434. i 
Spots purplish, slightly incrassated, small, scattered, roundish ; pe- 
ridia in small circinate clusters, hypogenous, and on the petioles, at 
first hemispherical, at length open, margin with from 4 to 6 spreading 
lobes; sporidia yellowish, elliptical.—On the under surface of the 
leaves and on the petioles of Sanicula Europea. Not uncommon. 
May and June. (Tab. XIV. f. 1.) 
This is a very distinct and interesting plant, and I should judge 
from its frequency in the Kentish districts that it is not uncommon 
wherever the Sanicle abounds. The small size of the clusters, some- 
times but little larger than those of a Puccinia, may in some measure 
account for its remaining so long unnoticed. A specimen is included 
in the Hookerian Herbarium from Carmichael’s Appin collection, but 
I cannot find it described in any work to which I have re 
29. Acidium Viole, Schum, (Violet Aicidium) ; spots yellowish; 
peridia in irregular heaps, seriate and scattered ; sporidia orange, at 
length brown.— Cooke, l. cm. 1435 ; Grev. Fl. Ed. p. 444; Berk. 
Outl. p.331 ; Eng. Fl. v. pt. 2. p. 312. .. Ai. Violarum, Gray's Nat. 
Arr. p.531; Johnst. Fl. Berw. p. 250.—On leaves, petioles, and sepals- 
of Violets: Common.. May and June. 
80. .Meidium Poterii, n..sp. (Burnet JEcidium) ; maculis: oblitera- 
tis; peridiis circinatis vel sparsis, immersis, margine denticulato deci- 
duo; sporidiis luteolis, ovatis.—Cooke, 4. c. n. 1436. iis 
- Spots obliterated, clusters subrotund or elongated ; peridia hypoge- 
nous and on the petioles, cireinating or scattered, immersed, margin 
irregularly fringed: with numerous minute teeth, soon falling away ; 
sporidia yellowish, oval.—On the under surface of the leaflets and on 
the petioles of Poterium Sanguisorba. Rare. May and June. Dart- 
ford Brent, Kent. (Tab. XIV. f. 3.) | 
This species is interesting from its association with a note in the Eng. 
Flora, vol. v. pt. 2. p. 373, to the following effect :—'" An Æcidium ap- 
parently of some interest has been found by Dr. Greville on Polerium. 
Sanguisorba ; the specimens, however, in Dr. Hooker's Hegbarium are 
too. young to- describe.” It was in consequence of this note that I 
made diligent search for the Zeidium above described, and only found 
