1914] 



BURT — THELEPHORACEiE OF NORTH AMERICA. I 223 



Incrusting and ascending upward 1-3 cm. ; free branches 5-10 

 mm. long, 1 mm. thick, sweep of fascicle about 5-10 mm. 



In moist places. New York to South Carolina, and west to 

 Illinois. July and August. 



The type is an incrusting specimen, covering as its main axis 

 a small twig in one specimen and a moss in the other, and send- 

 ing out a few lateral branches which are flattened towards the 

 free ends and subfimbriate ; main trunk is cylindric, latericius 

 (of 'Chromotaxia'), ends of branches paler; spores umbrinous 

 under the microscope, tuberculate, 7-8 x 6 m. Schweinitz de- 

 scribed the species as becoming hard and cartilaginous, but 

 this is an error probably due to the foreign matter surrounded 

 by the main trunk. Several other specimens are present in 

 his herbarium under various names. 



Specimens examined: 

 Exsiccati: Ellis, N. Am. Fungi, 512, under the name T. cristata. 

 Massachusetts: Weston, A. B. Seymour, T 1 (in Mo. Bot. 



Gard. Herb., 45573). 

 New York: Bethlehem and Selku-k, C. H. Peck (in Coll. N. Y. 



State), type of T. scoparia; Syracuse, from Herb. Cornell 



Univ., 19474. 

 New Jersey: Newfield, J. B. Ellis, N. Am. Fungi, 512. 

 Pennsylvania: Bethlehem, Schweinitz (in Herb. Schw.), the 615 



of Syn. N. Am. Fungi, under the name T. stabularis. 

 North Carolina: Salem, Schweinitz (in Herb. Schw.), type, and 



also the 1063 of Syn. Fung. Car., under the name Merisma 



fuscescens. 

 Indiana: Millers, E. T. and S. A. Harper, 670. 

 Illinois: Havana, H. C. Beardslee; Riverside, E. T. and S. A, 



Harper, 668. 



21. T. perplexa Burt, n. sp.^ 



Type: in Curtis Herb. 



Fructification incrusting, coriaceous, consisting of a resupinate 



membrane from the central portion of which arise cylindric 



trunks either simple or digitately branched; resupinate portion 



" spongy, firm, separable, fuscous at the center, margin thin, 



determinate, pinkish buff; ascending portions spongy, firm,, 



^ A figure will be given in Part II. 



