Annual Report of the State Botanist 1892 - MykoWeb

36
Report of tee State Botanist.
Anthostoma Ontariensis E. S E.
Dead branches of willow, Salix discolor. Karner. May.
In our specimens the stroma is eutypoid rather than valsoid
and the spores are a little broader than in the type.
Stigmatea Geranii FV.
Living and languishing leaves of Carolinian cranesbill, Ger-
anium, Carolinianum. Brownville. June.
Massariella Xanthoxyli n. sp.
Perithecia small, .01 to 028 in. broad, immersed in the bark,
scattered or subseriate, slightly elevating and at length piercing
the epidermis ; asci 8-spored ; spores crowded or biseriate, at first
colorless, then colored, uniseptate, quadrinucleate, oozing out and
forming a conical mass, then distinctly uniseptate but not
nucleate, .0024 to .0027 in. long, .0005 to .0007 broad.
Dead stems and branches of prickl}" ash, Xanthaxylum Ameri-
canum. Mechanicville. May.
In young specimens the bark has a much smoother and cleaner
appearance than in old ones. In these it is roughened and stained
by the heaps of ejected spores. The young spores have a strong
resemblance to those of Massaria vomitoria^ but the perithecia
are much smaller than in that species and the uniseptate mature
spores are quite distinct.
Ophiobolus subolivaceus n. sp.
Perithecia numerous, depressed, .012 to .014 in. broad, at first
covered by the epidermis, then superficial, black ; asci clavate or
jcjdindrical ; spores slightly curved, gradually narrowed toward
each end, yellowish-brown by transmitted light, five-septate, .0(»2
to .0025 in. long, .00016 broad, the third cell slightly swollen.
Dead stems of herbs, apparentl}'^ of ThaliGtrxun polygamum.
Mechanicville. May.
This is closely allied to 0. olivaceu.'