102 MINNESOTA BOTANICAT, STUDiniS. 



Peziaa aeruginosa (in part of some authors.) 



For external characters see Chlorospleniiim aerugiiiosiim (Oed.) 

 DeXot., from which this cannot be distinguished externally ; si)ores 

 cylindrical or fusiform, acute or obtuse, curved or straight, greenish 

 in color, a small guttula in each end, smooth, continuous, 8x 1.5-2 

 mic. ; paraphyses slender, tipped with tinge of greenish color, j'his 

 species turns the w'cod upon which it grows a deep verdigris green 

 to a considerable depth. Fully developed cups are more mre than 

 the green mycelioid state, as Phillips (162, p. 147) has noted. 



Growing upon coniferous wood, birch, and other dead sticks ; 

 Cass, Sept. 1898, Freeman & MacMillan 150; Houston, Aug. 1900, 

 Lyon 737; Cook. Aug. 1901, Lyon, Butters & MacMillan; Cook, 

 Aug. 1903, Freeman 4. 



Exsiccati: Thiimen, Fungi Austr. 831 {Ch. aeruginosum, spores 

 measure 8x1.5 mic.) Saccardo, Mycoth. Ital. 233 (C^^- aenigiiio- 

 sitm. spores measure 6-8x1-2 mic); Plates: Tulasne, Sel. Fung. 

 Carp. tab. 20. f. 15-19. 



8. .CIBORIA FUCKEL. 



Cups solitary, small, stipitate, waxy, funnel-shaped to convex; 

 exterior glabrous and smooth ; spores elliptical, yellowish, smooth, 

 continuous. 



1. Ciboria uliginosa (Fr.) Rehm, Raben. Krypt. Fl. i: 3: 761. 1896. 



Hclotium uliginosum Fries, Summ. \'eg. Scand. 355. 1849. 



Scattered or gregarious, stipitate ; cup concave to convex, light- 

 yellow, to 5 mm. across, pruinose beneath ; stipe light yellow, to 4 

 mm. high ; spores elliptical, obtuse, smooth, hyaline, with 2 large 

 guttulae, 8-10x2-4 mic; paraphyses very slender, not clavate, 

 branched, up to 2 mic. wide. 



On decayed twigs and wood in swamp; Goodhue, Aug. 1893, 

 Anderson 799; Becker, Aug. 1901, Butters 162. 



Lindau follows Rehm in considering this a Ciboria instead of a 

 Helotimn or Hymenoscyplia. 



2. Ciboria tabacina Ellis & Holway, Arthur, Bull. No. 3: 35. 1887. 

 Stem slender, almost filiform, slightly enlarged above, O.5-1.5 



cm. long, and like the outside of the perithecium, yellowish tobacco- 

 brown ; cups cupulate-patelliform, 1.5-2.5 mm. in diameter, subru- 

 gose beneath, margin entire and even, only slightly incurved; d'.sk 

 slate-colored, concave; asci cylindrical. 100-115x9-11 mm.; para- 

 physes stout, yellowish, gradually but only slightly thickened above ; 



