I
Gen. 3 5 0 .
Kg. 386.
M E LA N CO N IS , Ttil.
Stroma regular, orbicular or ovate,
conical or pulvinate ; conidia simple or
mnltilocular, often oozing out in a black
mass ; spermatiashortlyfiliform,curved.
Peritbecia globose, semi-immersed, with
short necks, circinating ; sporidia two,
or many celled, hyaline or coloured.—
Tul. Carp. ii.^. 115. {Figs. 386, 387.)
2 4 5 4 . M e lan co n is stilb o stom a .
Tul. “ Birch Melanconis.”
C o n i d i a .—Stroma elevated,
prominent, white ; conidia compact,
subglobose, olive, or olive-
brown.—Melanconium hicolor, Nees.
f . 27. Corda.i. f . 33, 34. Fckl.
exs. no. 84. Rahh. exs. no. 590. M.
hetulinum, Schm. & Kze. exs. no.
208. Fckl. exs. no. 85. Moug. exs.
no. 670. Fries, exs. no. 299. M.
elevatum, Corda. iii. f . 60. Didy-
Mg. 387. mosporium elevatum, Lk. Sp. vi. p.
94. Fr. S .M .iii.p .486. D.hetulinum, Grev.t.273. {Fig.386J)
S p e r m o g o n ia .—Nucleus pallid ; spermatia at length curved,
very slender, orange.— Nemaspora crocea. Fries, exs. no. 107.
Nemaspora aurea, Bahh. exs. no. 584. Lihertella hetulina, Desm.
Ann. Sc. Nat. xix. [1830), t. 5,/. 4.
A s c o p h o r e .—Perithecia in circles, covered with awaxy dirty-
white disc ; ostiola prominent, scattered, bursting forth, and at
length obliterating the disc ; sporidia biseriate, colourless, acuminate
elliptic, constricted, endochrome bipartite.— Tul. Carp. ii.
p. 1 20,1.14, f . 1-12. Fckl. exs. no. 590. Sphceria stilhostoma (in
part). Pr. N.ilf. ii.p. 403. Fr.exs.no.145. Gurr. Linn. Trans, xxii.
t . 48,f .l4 0 . Desm.exs.no.757. Moug. exs. no. 962. {Fig. 387.)
On birch. [United States.]
2 4 5 5 . M e lan co n is a ln i. Tul. “ Alder Melanconis.”
C o n i d i a .— S t r o m a e l e v a t e d , l a t e n t ; c o n i d i a c o m p a c t , g l o b o s e ,
or B u h g i o h o s e , v e r y s m a l l , p e l n c i d .—Melanconium sphceroideum,
Lk. Sp. vi.p. 92. Fr. S.M. iii. p. 488. Desm. exs. no. 140. M.
apiocarpum, Alni, Corda, ii./. 13. Bahh.exs.no. 469. Fckl.
exs. no. 89.
A s c o p h o r e .— Perithecia globose, black ; asci oblong-linear ;
sporidia narrowly elliptical or oblong, obtuse, curved, uniseptate,
scarcely constricted, with a hyaline setiform appendage at each
extremity.—Tul. Carp. ii. t. 21, f. 19, 33. Coohe exs. no. 369.
Wuestneia suffusa, Fckl. exs. no. 593. Sphæria thelehola, Curr.
Linn. Trans, xxii./. 158 (not Pries).
On alder twigs.
2 4 5 6 . M e lan co n is ch rysostroma.
Melanconis.”
Tul. “ Tellow-disc
C o n i d i a .—Conidia ovate, rounded behind, apiculate at the
base, olive-brown, with 1-2 nuclei.—Melanconium hicolor, f).
Babh. exs. no. 590. Fckl. exs. no. 90. M. microsporum, Nees.
Desm. exs. no. 753.
A s c o p h o r e .—Pustulate ; perithecia irregular, circinating and
decumbent ; ostiola scarcely exserted, pierced ; disc yellow ;
asci elongated, clavate ; sporidia elliptic, attenuated, at length
uniseptate, strongly constricted.—Tul.Carp. ii.p. 125, t. 24,/. 14-
20. Valsa chrysostroma, Fr. Summ. V.S. p. 412. B. &. Br. Ann.
N.H. no. 861*. t. 10,/. 16. Berk. exs. no. 296. Sph. xanthos-
troma, Mont. Ann. S. Nat. 1834, t. 12, f . 4. Berk. Mag. Zool. &
Bot.no. 22. Fries, exs.no. 444. Desm. exs. no. 1756. Curr. Linn.
Trans, xxii. ¿.48,/. 160.
On hazel and hornbeam.
Perithecia small, hardly visible above tbe bark, but very visible when the
epidermis is stripped off. Easily known by its yellow stroma. Spondia
(•0007--0009 in.) -OOT-'OaS m.m. long.
2 4 5 7 . M e lan co n is B e ik e læ i. Tul. “ Berkeley’s Melanconis.”
C o n i d i a .—Ovate elliptic, or elliptic oblong, straight, obtuse,
black, semi-opaque, quadrilocular (rarely 2-61ocular). Stilbos-
pora macrosperma, B. & Br.Hook. Journ. Bot. iii. (1851). t. 9,10.
A s c o p h o r e .—Perithecia circinating, or crowded ; ostiola
scarcely prominent, hlaok; asoi linear-oblong ; sporidia uniseriate,
ovate, elliptic, or elliptic-oblong, straight, quadrilocular, dark
brown, hyaline at the extremity.—TmZ. Carp. ii. p. 130. Fckl.
exs.no. 586. Sphæria inquinans, B. & Br.Hook. Journ. ®o¿. iii.
(1851), 1.10. var. Ulmi (not Massaria inquinans, B. & S r .).
On elm twigs.