n6 FIELD COLUMBIAN MUSEUM BOTANY, VOL. i. 



D. Rubi Fr. 



On Rubus cult., Feb. 19, 1895. Sporules 20 x 8 to 12 /j. (Nulf- 

 all, 1789). 



D. inquinans West. 



On Fraxinus Americana, April 27, 1894 (Nuttall, 1491, 459). 



D. Juglandis Fr. 



On Juglans cinerea, April 9, 1894 (Ntittall, 1449). 



D. Maydis (Berk.) Sacc. 



On Zea Mays, Aug. 10, 1895. Spores 30 x 4 ;i (Nuttall, i84o r 

 729). 



BOTRYODIPLODIA Sacc. 



B. acerina E. & E., Proc. Phila. Acad., 1894, 363. 



TYPE HABITAT: On dead limbs Acer Pennsylvanicum, Feb. 2 r 

 1894 (Nuttall, discov. 1362, 319). 



Perithecia erumpent in botryoidal clusters, often seriately con- 

 fluent for i or more cm., about .5 mm. diameter, white inside r 

 flatfish above, with a broad papilliform ostiolum. Sporules 

 elliptical, brown, uniseptate, 20 to 25 x 12 to 15 ,u. on basidia of 

 about the same length. 



B. - -sp. 



Stylosporus stage ? of Pseudovalsa sigmoidea (C. & E.). On dead 

 limbs Quercus Prinus, with that species. Spores brown, i -septate 

 25 x 12.5 fj. (Nuttall, 1829). 



ASCOCHYTA Lib. 



A. clematidina Thum. 



On Clematis Virginiana, Aug. 10, 1895 (Nuttall, 1842, 733). 



ACTINONEMA Fries. 

 A Rosae (Lib.) Fr. 



On Rosa cult., June 27, 1894 (Nuttall, 1563). 



HENDERSONIA Berk. 

 H. Lirella Cooke. 



On Salix nigra falcata, April 23, 1894 (Nuttall, 1480, 460) 

 Sporules 15 x 7.5 //. 



H. Desmazieri Mont. 



On bark of limbs Platanus occidcntalis, April 24, 1894. Spoi 

 ules -\- 40 x 22 ;j. (Nuttall, 1466). 



STAGONOSPORA Sacc. 



S. petiolorum E. & E., Proc. Phila. Acad., 1894, 365. 



TYPE HABITAT: On dead petioles Aralia spinosa, Feb. 17, i! 

 (Nuttall, discov. 1389, 357). 



Perithecia scattered, innate, small, slightly prominent and co\ 

 ered by the shining, blackened epidermis, 150 to 250 n diametei 



