^ Tympanis 369 



1. Tympanis Pinastri (Pers.) Tul. Fung. Carp. 3: 151. 1865. 



Cenangium Pinastri Pers. Obs. Myc. 2: 83. 1799. 

 Phacidium Pinastri Fries, Scler. Suec. 55. 1820. 

 Cenangium Pinastri Fries, Syst. Myc. 2: 184. 1822. 

 Tryblidium Pinastri Fries, Summa Veg. Scand. 369. 1849. 

 Cenangium laricinum Fuckel, Symb. Myc. 270. 1869. 

 Tryblidiopsis Pinastri V^arst. Myc. ¥enn. 1:262. 1871. 

 Micropera Pinastri Sacc. Michelia 2: 104. 1880. 

 Cenangella Pinastri Sacc. Syli. Fung. 8: 588. 1889. 



Apothecia scattered, erumpent, occurring either singly, or 

 in cespitose clusters on a stroma, short-stipitate, at first closed, 

 expanding and becoming turbinate, black, or blackish, reaching 

 a diameter of 1 mm.; hymenium concave, becoming plane, or 

 convex, lighter than the outside of the apothecium, cinereous; 

 asci clavate, reaching a length of 120-130 /x and a diameter of 

 12 IX, filled with minute, spore-like bodies, 1 X 2-2.5 ju; paraphy- 

 ses filiform, branched at their apices, reaching a diameter of 3 /x. 



The pycnidial stage, Micropera Pinastri, is described with 

 pycnospores fusoid-falcate, 5-7 X 50-60 ju. 



On Abies halsamea, Finns rigida and Pinus Strobus. 



Type locality: Europe. 



Distribution: Newfoundland to Washington and Colorado. 



Illustrations: Tul. Fung. Carp. 3: pi. I 'J, f. 10-12; Rab. 

 Krypt.-Fl. P: 245,/. 1. 



ExsiCCATi: Reliq. Farlow. 156 a-b; Rav. Fungi Car. 3: 63. 



2. Tympanis alnea (Pers.) Fries, Syst. Myc. 2: 174. 1822. 



Pezisa alnea Pers. Syn. Fung. 673. 1801. 



Tympanis conspersa alnea Karst. Myc. Fenn. 1: 227. 1871. 



Apothecia erumpent in cespitose clusters of three to twenty 

 each, on a rounded, black stroma 3-4 mm. in diameter, the 

 individual apothecia short-stipitate, reaching a diameter of 

 .3-.5 mm., black but often covered with a whitish, powdery coat; 

 asci cylindrical-clavate, reaching a length of 150-160 /i and a 

 diameter of 15-20 /x, filled with numerous spore-like bodies; 

 paraphyses branched enlarged at their tips where they reach a 

 diameter of 6 /x, brown, forming a brown epithecium. 



On branches of Alnus, Alnus tenuifolia and Alnus incana. 



Type locality : Europe. 



Distribution: Newfoundland to New York and Montana. 



This species is very similar to Tympanis cespitosa and was 

 regarded as a variety by Karsten. The specimen in Schweinitz, 



