164 MYcOLOGICAL NOTES FOR 1920 
all cases found near the ends of the branches and always at the 
forks of the twig 
Eventually ee fanuti produces its pycnidia on this hardened 
and blackened resin mass. These are minute elongate- 
ovoid or almost conical bodies (PLATE, 9, FIG. I, at left), yellow 
or amber-colored, and large enough to be easily visible, on close 
inspection, to the unaided eye. The ostiole is usually quite 
prominent, and may often be seen with a hand lens. In texture 
the pycnidia are waxy and easily crushed when mounted in 
water. The spores are globose, smooth, hyaline, and very small, 
measuring only about 2 y. in diameter. 
The nature of the pycnidium places the fungus in the Nec- 
trioidaceae of the Fungi Imperfecti. After several unsuccessful 
attempts at identification, the species was determined for me 
as Zythia resinae by Mrs. F. W. Patterson, who wrote that my 
specimens represented the only American material she had seen. 
Later Dr. Seaver identified my plants as being the conidial 
stage of Nectriella resinae (Fr.) Sacc., as listed by Saccardo. 
Nectriella is a genus of the true Nectriaceae, order Hypocreales, 
and consequently with an ascus in the life history. Examination 
of material collected at various times over a period of several 
years has failed to show on the same substratum any ascospore- 
producing structure comparable to the perithecium of a Nectriella. 
There is produced, however, on the same resin masses that bear 
the pycnidia an apothecial fructification that has been referred 
to Biatorella resinae (Fr.) Mudd., as listed below. 
2. BIATORELLA RESINAE (Fr.) Mudd. 
In company with Zythia resinae, as described above, there 
frequently grows an apothecial fruiting body that was determined 
as Biatorella resinae by Dr. L. W. Riddle, to whom my specimeris 
were sent by Dr. Seaver. The very small apothecia are about 
I mm. in diameter and yellowish or amber-colored (PLATE 9, FIG. 
I, at right). They have been collected on resin exudate in- 
habited by the larvae of the “pitch midge” on Pinus virginiana 
at Charter Oak and on P. ponderosa at Greenwood Furnace. 
The curious habitat and the frequent association of these apo- 
thecia with the pycnidia of the Zythia suggest a connection 
between the two, but if the Zythia is the pycnidial stage of the 
Nectriella such could hardly be the case. 
