ii2 FIELD COLUMBIAN MUSEUM BOTANY, VOL. i. 



C. Persicse Schw. 



QnAmygdalus Persicacnlt. "Early Rivers," June 30,1893 (Nutt- 

 all, 1 1 06). 



C. - sp. 



On Cercis Canadensis, April 10, 1 894 (Nuttall, 1471, 447). Spores 

 5 to 6 x . 75 ,. 



C. rhoina Fr. 



On Rhus hirta, June 20, 1894. Sporules 5 to 8 /j. (Nut tall, 



> 6 3 6 )- 



C. caryigena E. & E., Proc. Phila. Acad., 1894, 359. 



TYPE HABITAT: On dead limbs Hicoria ovata, May 31, 1894 (Nutt- 

 all, discov. 1524, 513). 



Stroma cortical, convex, 1.5 to 2 mm. diameter, slaty-black, 4 to 

 6-celled, cells yellowish-white, subglobose, small. Sporules 

 allantoid, hyaline 3.5 to 4.5 x .75 to i /*. 



(Spermogonia of Valsa caryigena, B. & C.)? 



C. Rhois-hirtae Nuttall, sp. nov. 



On Rhus hirta, June 10, 1894 (Nuttall, 1533, 635). 

 This form is clearly distinct from C. Rhoina Fr. Cirrus reddish 

 yellow. Perithecia very prominent. Spores 8 to 10 x 2 to 2.5 /*. 



C. Sassafras E. & E. sp. nov. 



TYPE HABITAT: On fire-killed twigs of Sassafras Sassafras, Dec. 

 20, 1894 (Nuttall, discov. 1766, 666). Jamaica, Long Island (F.C. 

 Stewart). 



Stromata thickly scattered, conical, rising from an orbicular 

 base about i mm. diameter, the black, shining apices erumpent and 

 roughening the bark, at first multilocular, becoming unilocular. 

 Sporules allantoid, hyaline, only slightly curved, 4 to 5 x i //. 

 borne on simple, straight basidia about 12 <j. long. 



C. betulina Ehr? 



On Betula nigra, Feb. 20, 1894. Cirrus yellowish, sporules, 4 

 to 6 x i ;j. (Nuttall, 1396, 367). 



C. Salicis (Corda) Rabenh? 



On Salix nigra, March 22, 1894 (Nuttall, 1429). 



C. Platani Fckl. 



On Platanus occidentalis, March 14, 1894 (Nuttall, 1424, 396) 



C. leucosperma (Pers) Fr. 



On Carpinus Caroliniana, Nov. 17, 1893. Sporules 5x i // (Nutt- 

 all, 1257). 



C. ceratophora Sacc. 



On Fraxinus Pennsylvania, Oct. 17, 1893 (Nuttall, 1234, 163). 



C. Curreyi Sacc? 



On Pinus Virginiana, Dec. 13, 1844; on Tsuga Canadensis, April 

 15, 1895 (Nuttall, 1771, 697). 



