318 
1.—Piggottia astroidea B and Br. A. N. H., No. 503. On 
living elm leaves. Common. The only species. 
GENUS 117. SEPTORIA. Fr.* 
1.—Septoria Ulmi, Kze. Grev t 112 on living elm leaves. Bath- 
easton. ; 
2.—Septoria avellane Band Br MSS. On dying hazel leaves. 
It grows in rings forming at first dark green, and afterwards 
brown spots on the leaves. Perithecia conical, minute, 
pierced by a circular pore at the apex, whence the spores 
exude and form little cirri. Spores lunate, curved, about 
0:0004 inch long. There are more than 20 British species 
recorded, bnt they have not been examined yet in this 
locality, they are doubtless numerous. 
GENUS 118. aAscocnyTa. Lib.t+ 
Perithecia distinct, delicate. Spores oozing out, uniseptate or 
simple. Neither of the four British species have yet occurred 
here. 
GENUS 119. cystTorricHa. B and Br.t 
Perithecia bursting longitudinally. Sporophores branched, 
articulated, beset here and there with oblong, uniseptate spores. 
1.—Cystotricha striola B and Br. A. N. H., No. 448 with a fig, 
on naked wood, Batheaston. This is doubtless the spermo- 
goniiferous state of some ascigerous fungus. 
GENUS 120. NEOTTIOSPORA. Desm.§ 
Perithecia concealed, with a central perforation. Spores 
hyaline, crested. 
1.—Neottiospora caricum Desm, exsice. No. 717, Annals. Scien. 
Nat., 1843, xix., p. 346. B and Br., A. N. H., No. 435. 
The only species. On carex pendula, Rudlow, Batheaston, &c. 
* Septoria, from septum a division, from the septate spores, 
+ Ascochyta—perhaps from ascos and chutos—fluid. 
{ Cystotricha, from kustis, a bladder, and thrix a hair. 
§ Neottiospora, from neottion, a young bird. 
