456 SPHJEEONEMEl. 



1357. Ascochyta dianthi. Berh. " Pink-leaf Ascochyta." 



Perithecia irregular, conglomerate ; spores spathulate, some- 

 times divided into two parts, containing a few globose granules. 

 — Berk. Outl.p. 320. Sphoeria (Depazea) dianthi A, ^ S. t. 6,/. 

 2. Berk. exs. no. 1^1. Be?^k. Ann. jV.II.no.l04:,t.7,f. 6. Fckl. 

 exs. no. 490. A7. exs. no. 863. 



On living pink leaves, &c. 



1358. Ascochyta rufo-maculans. Berk. "Brown-spot 



Ascochyta." 



Spots orbicular, red-brown ; perithecia emergent, free, of the 

 same colour ; spores oblong, simple, constricted in the centre. 

 — Berk. Outl.p). 320. Septoria rufo-maculans. Berk. Gard. Chron. 

 1854, p. 676, with Jig. 



On grapes. 



Forming an orbicular spot of a sienna brown, preserving constantly a defi- 

 nite outline. This spot separates readily from the subjacent pulp, in conse- 

 quence of a copious crop of mycelium, the threads of which form the radii of 

 a circle. The surface is rough with little raised orbicular reddish perithecia 

 arranged concentrically ; spores varying from -0008 to '0065 in. ('02 to '15 

 m.m.) In age the perithecia fall away, leaving a little aperture, the border 

 of which is often stained black. 



Gen. 126. CYSTOTRICHA, B. & Br. 



Perithecia bursting longitudi- 

 nally ; sporophores branched, ar- 

 ticulated, beset here and there 

 with oblong, uniseptate spores. — 

 Berk. Outl. p. 320. B. 4\ Br. Ann. 

 N.II.no.US. {Fig. 168.) 



Fig. 168. 



1359. Cystotricha striola. B.&Br. " Seriate Cystotricba." 



Perithecia punctiform or linear, often forming little rows, 

 black, with a reddish tinge ; disc reddish ; sporophores highly 

 developed, greatly elongated, bearing one or two branches above, 

 articulate from the base, sub-moniliform, articulations about as 

 long as broad, giving off here and there oblong pellucid spores, 

 at first simple, at length uniseptate. — B. ^' Br. Ann. N.H. no. 

 448,^. 12,/. 10. 



On decorticated wood. 



It has nearly the structure of Tubercularia, with the addition of a perithe- 

 cium, the sporophores being closely articulate. {Fig. 168.) 



