HYMENOSCYPHA. 121 
gated, rather thick, flexuous; asci cylindrical; sporidia 
8, ovate, or sub-elliptic, or subglobose, 10 x 6u; para- 
physes filiform. 
Peziza caucus—Rebent., “Neom.,” p. 386, t. 4, £17; 
Pers., “Myco. Eur.” p. 283; Fries, “Sys. Myco.,” ii. 
p. 126 ; Cooke, “ Handbk.,” 2093 (in part) ; “ Grevillea,” vi. 
p. 28; Pat. p. 210, f. 483. Pez. amentalis—Schum., 
“Saell.,” p. 418. Ciboria caucus—Fckl., “Symb. Myco.,” 
p. 811. Phiulea caucus—Gill., “Champ.,” 110. 
On dead catkins of poplar, lying in damp spots. 
Spring. 
Cup 1 to 23 lines broad; stem as long or twice as 
long as the width of cup, same colour as cup. 
The figure of Rebentisch, t. iv. f. 17, represents an 
exceptional form of the plant, with a very slender stern, 
described as “stipes filiform, slender, not dilated up- 
wards” (Fries, l. c.); but our specimens have a moderately 
thick stem, enlarged at the point of junction with the 
cup: but Fries had only seen the figure. 
Name—Caucus, a drinking-vessel. 
Near Perth, N.B.! (Dr. Buchanan White). 
(b) On twigs. 
11. Hymenoscypha luteo-virescens. (Rob.) 
Cup patelliform, then convex, firm, pallid-green, 
margin entire; stem slender, attenuated below, flexuose, 
more or less elongated and immersed in the earth; asci 
cylindraceo-clavate ; sporidia 8, elliptical, 15 x 5u; para- 
physes filiform, stout, filled with granules. 
Peziza luteo-virescens—Rob. in Desm., “Crypt. Fr.,” 
ed. i, No. 1541; ed. ii. No. 1041; “Ann. Sc. Nat.,” 1847, 
viii. p. 188. Peziza pallido-virescens—Phil. in “Gre- 
villea,” vi. p. 24; “Scott. Nat.,” vi. 163. Phialea luteo- 
virescens— Gill, “Champ.,” p. 108. 
Exs.—Desm., “Crypt. Fr.,” l. ¢.; Phil., “Elv. Brit.,” 
No. 122. 
On buried petioles of Acer. Autumn. 
Cup 1 to 5% lines broad; stem often 10 lines long. 
