1*72 



E. Perithecia small, mostly gregarious, bristly. 

 R. ligniaria, (Grev.) 



Spherria ligniaria, Grev. Crypt. Fl. vScot. I, p. 82. 

 Rosellinia ligniaria, Sacc. Syll. 991. 

 Exsicc. Fckl. F. Rh. 1810. 



Perithecia gregarious, superficial, Bubglobose^ or ovate-conical, 

 Mack, about \ mm. diam., or rather less, clothed with short (20-30 //), 

 black bristles. Asci cylindrical, p. sp, about 75x9-10 p. Sporidia 

 obliquely uniseriate, elliptical, brown, 12-14x5-6 p. 



On wood of various deciduous trees, Canada, New Jersey. Louisi- 

 ana, Carolina and Virginia. 



The Louisiana specc, (on poplar), have asci p. sp. 75-80 x 10-12 p, 

 spor. 12-15 x 7-8 p, bristles 20-30 p long. On Ostrya Virgmica, 

 (Canada), spor. 10-1 2 x 7-8 p. On wood of Sambucus (Canada) spor. 

 10-1 2 x 7-9 a, bristles 50-75 p long. Pinus and Cvpressus are also 

 given in the Sylloge as habitats of this species. 



R. trichota, (. & E.) 



Spheeria abietina, Fckl var. trichota C. & E. Grev. VI, p. 13. 

 Spherria hirtissima, Pk. 28th. Rep. N. Y. State Mus. p. 78. 

 Exsicc. Ell. N. A. F. 895. 



Perithecia mostly densely gregarious, ovate, 380 p high and 300 p 

 wide, densely clothed with straight, black, erect bristles, 75-90 //long. 

 Asci (p. sp.) 80-90 x 10-12 p, with a narrow, stipitate base 30-40 p 

 long. Sporidia uniseriate, lying end to end, subglobose or short ellip- 

 tical, opakc, 12-14 x 10-12 p. 



On decorticated fallen limbs of Pinus rigid a, and on wood of 

 white cedar, Newfield, N. J. Mostly in the excavations made by 

 larva? burrowing under the bark. 



On account of its longer bristles and subglobose sporidia we con- 

 sider this worthy of specific rank. 



R. abietina, Fckl.. Symb. p. 150. 



Exsice. Fckl. F. Rh. 1811. 



Perithecia gregarious or crowded, a little larger than those of /?. 

 pulveracea, ovate, attenuated above into an obtusely conical ostiolum, 

 black, covered with very short, black bristles. Asci cylindrical, 95- 

 100x10-12 p, stipitate. Sporidia obliquely uniseriate, oblong, sub- 

 elliptical, continuous, brown, 14-16 x 6-8 //. 



On exposed dead wood of Juniperus Virglniana, Newfield, N. J. 



