172 



E. Perithecia small, mostly gregarious, hristly. 

 R. lignikria, (Grev.) 



Spharia Ugniaria, Grev. Crypt. FI. Scot. I, p. 8z. 

 Rosellinia Ugniaria, Sacc. Syll. 991. 

 Exsicc. Fckl. F. Rh. 1810. 



Perithecia gregarious, superficial, subglobose, or ovate-conical, 

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

 black bristles. Asci cylindrical, p. sp. about 75 x 9-10 //. Sporidia 

 obliquely uniseriate, elliptical, brown, 12-14 x 5-6 /i. 



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 /i, 

 spor. 12-15x7-8 n, bristles 20-30// long. On Ostrya Virginica, 

 (Canada), spor. 10-1 2 x 7-8 n- On wood of Sam.bucus (Canada) spor. 

 10-1 2 X 7-9 fi, bristles 50-75 ;i long. Piniis and Cupressus are also 

 given in the Sylloge as habitats of this species. 



R. trichota, (C. & E.) 



Sphtsria abittina, Fckl var. trichota C. & E. Grev. VI, p. 13. 

 Sphizria hiriissima, Pk. 28th. Rep. N. Y. State Mus. p. 78. 

 Exsicc. Ell. N. A. F. S95. 



Perithecia mostly densely gregai-ious, ovate, 380 ji high and 300 // 

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

 Asci (p. sp.) 80-90 X 10-12 ji, with a narrow, stipitate base 30-40 /i 

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

 tical, opake, 12-14 X 10-12 ji. 



On decorticated fallen limbs of Pinus rigida, and on wood of 

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

 larvae 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. 



Exsicc. Fckl. F. Rh. iSll. 



Perithecia gi'egarious or crowded, a little larger than those of R. 

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

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

 100x10-12 //, stipitate. Sporidia obliquely uniseriate, oblong, suli- 

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



On exposed dead wood (£ Juniper us Virginiana, Newfield, N. J. 



