266 FUNGUS-FLORA. 



Helotium subtile. Fries, Obs. Myc., ii. p. 310. 



Usually gregarious, stipitate, closed at first, then expand- 

 ing and becoming plane or slightly convex and concave 

 underneath, up to 1 mm. across, white, glabrous; excipulum 

 parenchymatous, cells very delicate and small, radially 

 elongated ; stem cylindrical, slender, usually straight, up to 

 2 mm. long ; asci narrowly cylindric-clavate, apex rounded, 

 8-spored; spores irregularly biseriate, narrowly fusiform, 

 straight or very slightly curved, hyaline, continuous, smooth, 

 6-8 x 1 ' 5 ju, ; paraphyses slender, 1 5 p. thick, apex not 

 thickened, hyaline. 



Peziza subtilis, Fries, Syst. Myc., ii. p. 157. 



Hymenoscypha subtilis, Phil., Brit. Disc., p. 132. 



Phialea subtilis, Gillet, Champ. Fr., Disc., p. 161 ; Sacc., 

 Syll., viii. n. 1053. 



On decaying leaves of conifers. Autumn. 



Specimen in Eoum., Fung. Gall., Exs., 1056, and Fuckel, 

 Fung. Khen., n. 1160, examined. 



Allied to P. advenula, but the ascophore is larger, and the 

 asci and spores smaller ; the cells of the parenchyma are 

 also much smaller in the present species. 



Helotium conigenum. Fries, Sunima Veg. Scand., 

 p. 355; Phil., Disc., p. 167; Sacc., Syll., viii. n. 898. 



Gregarious and often confluent, sessile or furnished with 

 an exceedingly short stem-like base, closed at first, then 

 expanding until plane or slightly convex, rather firm, gla- 

 brous, ^ 1^ mm. across, pale yellow or pallid ; excipulum 

 and hypothecium formed of slender, hyaline, interwoven 

 hyphae, passing into a parenchymatous cortex, the cells 

 running out at the margin into free hyphae, 20-30 x 4-5 p., 

 hyaline, and having the tips slightly clavate ; asci narrowly 

 clavate, the tip somewhat narrowed, 8-spored ; spores 3-seri- 

 ate above, hyaline, continuous, often slightly bent, narrowly 

 cylindric-fusiform, 6-8 x 1 * 5-2 //, ; paraphyses slender, hya- 

 line, tip very slightly or not at all thickened. 



Peziza conigena, Pers., Syn., p. 634. 



On fallen fir cones, lying in damp spots. 



A distinct species, well marked by habitat and the small 

 spores. H. virgultorum, var. conigenum also grows on the scales 

 of ~cones, but is distinguished by the stipitate ascophore and 

 the much larger spores. 



