Jtp
834 S P H Æ E IA C E I .
2 4 9 8 . V a lsa stilb o stom a . Fr. “ Pallid dise Valsa.”
Peritbecia disposed in circles, covered witb a waxy, dirty-wbite
disc ; ostiola prominent, scattered, bursting forth, and at length
obliterating the disc ; sporidia biseriate, colourless, acuminate-
elliptic, constricted ; endochrome bipartite.—Fr. S .V .S . p. 411.
Gurr. Linn. Trans, xxii. i. 4 8 ,/. 140. S. stilbostoma, Fr. S.M.
ii-T?. 403. Fries, exs.no. 145. Valsa rhois, Coohe exs. no. 245.
On various dead branches (except beech). [United States. ]
Sporidia (-0007 in.) '0177 m.m. long.
2 4 9 9 . V a lsa oncostoma. Duby. “ Locust treeValsa.”
S p e r m o g o n ia .— Nestling in the wood, replete with a yellowish
gelatine; spermatia oblong-lanceolate, simple, hyaline.
A s c o p h o r e .—Perithecia mostly circinating; ostiola long,
convergent, crowded ; asci elongated, sessile ; sporidia oblong-
lanceolate, uniseptate, quadrinueleate, hyaline.—Fchl. exs. no.
1730. Sphceria oncostoma, Duby in Kl. exs. no. 253. Diaporthe
oncostoma, FcU. Sym. Myc. p. 205.
On Robiniapseudacacia. Swanscombe.
2 5 0 0 . V a lsa c ir c um s c iip ta . Mont. “ Guelder rose Valsa.”
Perithecia either simple and scattered, or 3-4 together, globoso
depressed, occupying the inner bark, at first covered by the
cuticle, which at length vanishes, blackish; ostiola papillate, or
conical ; asci narrowly oblong or suhcylindrical, sessile ; sporidia
narrowly fusiform, acute, hyaline, quadrinueleate, uniseptate (at
length quadricellular).—Jiowf. Syll. p. 220. Sphæria circumscripta,
Fr. Ann. Sc. Nat. i. p. 298,1.13,/. 2 (inaccurate). Diaporthe
circumscripta, FcU. exs. no. 1991. Diaporthe Beckhausii,
Nke. Pyr. Germ. i. p. 295.
On twigs of Viburnum. Darenth.
Altbongb the fruit does not absolutely agree witb Montague’s deeoription,
the sporidia being acute and usually only uniseptate, it appears to be tbe
same species.
2 5 0 1 . V a lsa entezoleuca. Fr. “ White disc Valsa.”
O r b i c u l a r , c o n v e x , f r e e ; s t r o m a w h i t e ; p e r i t h e c i a s m a l l ; o s t
i o l a c r o w d e d , f r e e , g l o b o s e , o r b e a k e d , s o m e w h a t w r i n k l e d ;
s p o r i d i a b i s e r i a t e , c o l o u r l e s s , o b l o n g , a c u m i n a t e a t e a c h e n d ,
c o n s t r i c t e d , o f t e n s l i g h t l y c u r v e d , q u a d r i n u e l e a t e , u n i s e p t a t e .—
S P H Æ E IA C E I . 835
S. enteroleuca, Fr. S.M. ii.7). 381. Fng. F I .y .p. 247. Bull.t.
432, f . 1. Curr. Linn. Trans, xxii. t. 47, f . 113.
On dried branches. [Mid. Carolina.]
Pustules 2-3 lines broad, at length by the decay of the bark free ; stroma
numerous in each pustule, deeply imbedded in a very white strom'a, when
cut across horizontally, a very well defined black line is seen which arises
from the wood surrounding the perithecia being blackened, thereby causing
the appearance of a couceptaculum, but there is not really any.—P. C,
2 5 0 2 .
I Sporidia appendiculate.
Valsa. ta le o la . Fr. “ Ciliated oak Valsa.”
Loosely circumscribed; stroma cortical ; perithecia crowded
in the centre; disc white ; ostiola even, immersed, punctiform ;
sporidia oblong, very obtuse, uniseptate, with cilia on each side of
the septum and at either extremity.—Fr. S. V. S .p . 411. Fckl.
exs. no. 2001. B. & Br. Ann. N.H. no. 849, t. 9 ,/. 11. Coohe
exs.no. 252. V. luteola. Berk. Outl.p. 389. S. taleola, Fr. S.M.
n.p. 390. Fng. Fl. v. p. 249. S. angulata, Gurr. Linn. Trans.
xxii. t. 47, f . 122 ; xxY.p . 246. Phil. Trans. (1857), p. 550, t.
25, f. 20-22. Diatrype sordida, B. & Br. Ann. N.H. no. 838. Agla-
ospora taleola, Tul. Carp. n .p . 168.
On oak branches. Common. [Low. Carolina.]
Sporidia uniseriate, seldom biseriate, colourless, or pale sea-green, obtuse,
constricted in the middle, furnished with four cilia, one proceeding from
each pole, and one from the middle of each side; endochrome usually granular
(’OOOS-'OOia in.) ‘02-'03 m.m. long. Sometimes when the endochrome
is oleaginous, and not granular, the appearance of tbe sporidia is quite different.—
F.C.
2 5 0 3 . V a lsa th e leb o la . Fr. “ Tailed Alder Valsa.”
Pulviniform or conical, depressed or subtrnncate ; asci oblong ;
sporidia biseriate, amber-coloured, with a greenish tint or hyaline,
slightly curved, obtuse at the extremities, commonly ciliate
at each end, uniseptate.—Curr. Linn. Trans, xxii. p. 280, t. 48,
/ . 157-159. Cooke Seem. Journ. (1866),/. 8. Sphæria thelebola,
Fr. S .M .n .p . 408, no. 193. Sphæria ditissima, Tul. Ann. Sc.
Nat. 1856, iii.yi. 117. Aglaospora thelebola, Tul. Carp. ii.p. 166,
i . 21,/. 1-18.
On alder. Sept. Irstead, Norfolk.
Unless care be exercised in the examination, tbe terminal cilia may be
overlooked.