2 4 2 9 .
Sect. 1. Diatrypella—Asoi many spored.
Diatzype quercina.. Tul. “ Oak Diatrype.”
Perithecia 8-15 in a group, black; ostiola ovate, quadrisul-
cate ; asci linear-clavate ; sporidia numerous, yellowish in a
mass, sausage-shaped, and colourless when free.— Tul. Carp. ii.
p. 98, t. xii./. 1-15 (noi B. & Br. nor Currey). Rabh. exs. no. 319
and 635. Diatrypella quercina, Coolce exs. no. 242. SferiaceiItal.
p. 28. Sphæria quercina. Fers. Syn.p. 2 4 ,1.1,/. 7 b. Desm. exs. no.
1725. Stromatosphceria quercina, Grev. FI. Ed. p. 358. Microstoma
enteroleucum, FcTcl.exs.no. 1037. Diatrypella Rouselii, De
Not. Sfer. Ital. t. 32. {Fig. 385.)
On oak branches. Common. [Mid. Carolina.]
2 4 3 0 . D ia try p e a sp e ra . Fr. “ Bough Diatrype.”
Orbicular or angular, convex, black ; perithecia attenuated
into a slender neck, covered with a dirty-white stroma; ostiola
conico-cylindrical ; asci clavate; sporidia numerous, curved,
rounded at the ends, without nuclei.—Ilof'm. Icon.iii. 1.18,/. 3.
Fchl. exs.no.2051. Fr. S .V .S .p . 385. S. aspera, Fr. S.M. n. p.
354. Eng. Fl. v. p. 242. Diatrypella aspera, Fckl. Sym. Alyc. p.
232.O
n branches of oak.
Very much resemhling D.verrucceformis, hut the stroma is dirty-white, the
ostiola more prominent, and the neck, instead of heing short, attenuated.
2 4 3 1 . D ia try p e fa v a c e a . Fr. “ Birch Diatrype.”
Irregular, black ; perithecia oblong-ovate, with a short neck
covered with the thin dirty-white stroma; ostiola rather prominent,
convexo-subrotund; asci clavate; sporidia numerous,
curved, rounded at the ends without nuclei.—/)■. S .V .S .p . 385.
Fckl. exs. no. 1040. S.favacea, Fr. Obs. ii. t. 8, / . 5. S.M. ii.p.
354. Eng.Fl. v .p . 242. Fries, exs. no. 806. Berk. Mag. Zool &
Bot. no. 17. Diatrypella favacea, De Not. Schema, 28.
On birch, yet covered with the bark. [Mid. Carolina.]
Sometimes orbicular, sometimes irregular from several individuals being
confluent, prominent, 2-4 lines or more broad, at first pale wood-colour.
Perithecia disposed indistinctly in two layers, their bases suhconnate, apices
distinct covered with a thin stroma, which in the old state is obliterated ;
base oiroumscribed by a fine black line.—Fries.
2 4 3 2 . D ia try p e verrucaeformis. F \ “ Warty Diatrj'pe.”
Angular, convex, rugose, black, nearly of the same colour
within, circumscribed below ; perithecia ovate, with a short neck ;
asci fusiform ; sporidia numerous, crowded, yellowish in the
mass, curved, rounded at the ends, usually nucleate.—Fr. S.V.S.
p. 385. Gurr. Linn. Tm«s. xxii. i. 46,/. 81. Sph. verrucæformis.
F r.S .M . ii. p .355. Fries, exs. no. 74. Moug. exs. no. 867. Eng.
Fl. V. p. 242. Microstoma verrucæformis, Fckl. exs. no. 1036. S.
parallela. Sow. t. 394,/. 4. Microstoma vulgare, Rabh. exs. no. 253.
Diatrypella verrucæformis, Fckl. Sym. Myc.p. 232.
On branches of hazel, beech, &c. Common.
[United States.]
Bursting through the bark by the laciniæ of which it is surrounded, 1-lJ
line broad, hlaok, brownish within, the orifices of the perithecia more or
less distinct.—J/./.JS.
Sporidia ('0004 in.) '01 m.m. long.
2 4 3 3 . D ia try p e a n g u la ta . Fr. “ Angular D iatrype.”
Loosely circumscribed; stroma cortical ; perithecia few, crowded
in the centre; disc plane, black; ostiola exceedingly small;
asci narrowly clavate, stipitate, polysporous ; sporidia, cylindrical,
unicellular, curved, small, pale.— Valsa angulata, Fr. S .V .S .p .
411. B. & Br. Ann. N.H. no. 848.* S. angulata, Fr. S.M. ii. p.
390. Fries, exs. no. 12. Eng. Fl. v .p . 248. Diatrypella angulata.
De Not. Schema, p. 28. Rabh. F.E. no. 1022. Fckl. exs. no. 2058.
On branches of beech, laburnum, birch, and lime.
In the early stage the stroma is white. Desmazières finds in Pries, exs. no.
72, sausage-shaped sporidia.—B. Sç Br.
Sect. 2. Diatrype genuina—octosporous.
2 4 3 4 .
A . Sporidia sausage-shaped.
D ia try p e stigm a . Fr. “ Effused Diatrype.'
S p e r m o g o n ia .—Spermatia cylindrical, obtuse, slightly curved,
oozing forth in reddish or orange tendrils.—Myxosporium croceum,
Linh. Sp. PI. Nemaspora microspora. Desm. Ann. Sc. Nat. xix.
[ 1 8 3 0 /_p. 271. Tul. Ann. Sc. Nat. v. [1 8 5 6 / p. 111.
A s c o p h o r e .—Effused, often nearly surrounding the branch,
flat, even, at length black ; ostiola nearly plane, sub-immersed;
sporidia yellowish in the mass, almost colourless when single,
slightly curved.—Sph. stigma, Hoffm. V.C.i.t. 2, f.2 . Moug. exs.
2 m 2