98 Field Columbian Museum — Botany, Vol. i. 



I. clavata Ditm. 



On dead sticks on ground, June, 1893 {Nuttall, mo). 



CERATIUM A. & S. 



C. hydnoides (J acq.) Alb. & Schw. 



On rotten log, June 10, 1893 [Ni/iiall, 976). 



SPOROCYBE Fr. 



S. Rhois (B. & C.) Sacc. 



On Rhus copallina, March 24, 1894, spores 7.5 x 2 to 2.5 /z. 

 On Rhus hirta, March 28, 1894, spores 10 x 2.^ tj. {Nuttall, 1430). 



S. Azaleae (Peck) Sacc. 



On. c3.-ps\i\e.s oi Rhododendron tnaxhnum, Dec. 12, 1893. Conidia 

 varying from globular through elliptical to cylindrical, dark brown, 

 outer coat easily ruptured, 10x10, 8x5, 12x5, 15x7.5 /j. {Nuttall, 

 ^307)- 



TUBERCULARIACE^. 



TUBERCULARIA Tode. 

 T. VULGARIS Tode. 



On twigs, Feb. 23, 1893. On Robinia Pseudacacia, Dec. i, 1893. 

 On Aralia spinosa, Dec. 13, 1893. On Sambucus pubens. On Acer 

 Negundo, April 20, 1894 {Nuttall, 942). On limbs of dead Rhus 

 hirta, Monongalia Co., near Morgantown, 1891 {Millspaugli). 



T. hamata E. & E., Proc. Phila. Acad., 1894, 386. 



Type habitat: On dead limbs of Celtis occidentalis. Feb. 2, 

 1894 {Nuttall, discov. 1357, 313). 



Depressed hemispherical, umbonate, soon becoming black, .5 

 to 1.5 mm. diameter, Conidia oblong, slightly curved, hyaline, 5 

 to 8 X 1.5 to 2 // on slender simple sporophores 30 to 40 /x long, 

 incurved or involute at the tips. 



T. sp. 



On Asimina triloba, Feb. 22, 1894. Flesh colored spores 18 to 

 ii^}, fj. {Nuttall, 1 39 1, 361). 



T. sp. 



Conidia of Nectria 7'errucosa. On dead twigs Morus rubra July 

 25, 1895 {Nuttall., 1827, 715). 



T. Sambuci Corda. 



On Sambucus pubens, Feb. 26, 1894 {Nuttall, 1409). 



T. Celastri Schw. 



On Celastrus scandens, April 25, 1895. Spores 5 to 6x2 // {Nutt- 

 all, 1 8 11). 



DENDRODOCHIUM Bon. 



D. affiue Sacc. 



On bark wet dead stumps, Oct. 24, 1893 {Nuttall, 1229, 174). 



