PSEUDOPEZIZA. 195 



Psendopeziza petiolaris. Mass. 

 Ascophore minute, developing under the epidermis, its 



presence indicated by a pale grey spot, then emerging 

 through an elongated slit, or less frequently through a 

 stellate rupture with 3-4 teeth ; often longish, marginate, 

 yellowish-grey, soft, \-l mm. across; asci elavate, small, 

 B-spored; spores eylindric-clavate, obtuse, straight, con- 

 tinuous, hyaline, smooth, biseriate, 6-9 x 1^—2^ /x ; para- 

 physes filiform, septate, becoming gradually thicker upward-, 

 3 /x thick at the apex, colourless. 



Peziza erumpens, Grrev., Scot., Cr. FL, t. 90. 



Hysterium petiolare, Albert. & Schweinitz, Comp. Fung. 

 Nisk., p. 59. 



Mollisia erumpt ns, Phil., Brit. Disc, p. 197. 



Mollisia petiolaris, Sacc, Syll., viii. n. 1460. 



Trochila petiolaris, liehm, Kiypt. -Flora, Disc, p. 132. 



On dead petioles of leaves of sycamore and horse chestnut. 



Resembling a small Hysterium or Lophod&rmium to the 

 caked eye. 



** On Jierbaccous stems and culms of Angiosperms. 



Pseudopeziza artemisiae. Mass. 



Gregarious or scattered, erumpent, sessile, at first closed 

 and turbinate, then expanding until almost plane, up to 

 1 mm. across ; disc pallid, externally dark brown, often with 

 an olive tinge, margin pale ; excipulum parenchymatous, 

 cortical cells irregularly polygonal, dark brown, 6-8 fi 

 diameter, smaller and paler at the margin ; asci elavate, 

 apex narrowed, base rather stout, 8-spored ; spores obliquely 

 2-seriate, hyaline, continuous, narrowly elliptical, ends 

 rather acute, straight or very slightly curved, 7-11 X 

 1 • 5—2 fi ; paraphyses hyaline, about 3 p thick at the slightly 

 thickened tips. 



Peziza artemisiae, Lasch, in Rab., Herb. Myc, n. 335. 



Mollisia artemisiae, Phil., Brit. Disc, p. 188. 



JPyrenopeziza artemisiae, Kehm, Ascom., exs., n. 66 ; Rehm, 

 Krypt.-Flora, Disc, p. G16 ; Sacc, Syll., viii. n. 1484. 



On dead stems of Artemisia vulgaris. 



Specimens examined in Rabenh., Herb. Myc, ed. ii. n. 623 

 (collected by Lasch) ; and Rehm, Ascom., n. 66. 



o 2 



