ll
l!
i 6 j
H Y S T E R IU M p u l i c a r e .
Obtuse Hysterium.
C l a s s a n d O r d e e CRYPTOGAMIA FUNGI, L in n N a t . O e d . H Y P O X Y L A ,
De Cand. Grev.
G EN E R IC c h a r a c t e r .
Crusta nulla. Perithecium plerumque oblongum, corneum, rima longitudinali
dehiscens. Sporulce in tubulis hyalinis, elongalis, erectis, gelatinosis.
Crust none. Perithecium mostly oblong, corneous, bursting by a longitudinal
slit. Sporules contained in hyaline, elongated, erect, gelatinous
tubes.
S P E C IF IC CH.ARACTER.
H ysterium p u lic a re ; superficiale, ellipticum oblongumve ; obscure longitudinaliter
striatum, atrum, labiis obtusis, disco lineari.
H. superficial, elliptical or oblong, obscurely longitudinally striated, black,
lips obtuse, disk linear.
H ysterium pulicare, Pers. Disp. Meth. Fung. p. 5.— Syn. p. 98.—Icon. Pictoe,
p. 21. t. 9- f- 2.—Alb. et Schmein. p. 55.— De Cand. Fl. Franç. v. 2. p. 207-
—Syn. p. 64— Wahl. Fl. Lapp. p. 523.—Schleich, PI. Exsic. No. 362.—
Moug. et Nestl. St. Crypt. Exsicc. No. 266.—Nees, Syst, t. 39. f. 302___
Schmein. Fung. Carol. No. 237-—Hook. Fl. Scot. pt. 2. p. 8.—Fries, Syst.
V. 2. p. 579-—Scl. Suec. Exsicc. No. 9 1 - & 6I.— Grev. Fl. Edin. p. 366 -
Schmidt et Kunze, Deutschl. Schmaem. No. 158.
H y s t e r i u m p ed ic ella tum , Schum. Soell. 2. p . 153. fid e Fries.
H y s t e r iu m læ v e ? Pers. Icon. Pictoe, p . 22. t. 9. f. 3.
H ysterium Juglandis.? Schmein. Fung. Carol. No. 242.
L ichen scriptus, g, Lightf. Fl. Scot. v. 2. p. 801.
L i c h e n No. 7 . Mich. Gen. PL p. 102. t. 54. f. 2.
H ab. On dead portions of the tru n k s of various trees, frequent.
Black, scattered or crowded, lying in all directions on the surface o f the
b ark or w'ood, not in the least immersed, varying considerably in form
and in size, mostly elliptical, obtuse, very convex, obscurely striated,
the orifice linear, rarely a t all dilated, and the margins (or lips) rounded.
The thecæ or hyaline tubes contain 3-4 pyriform bodies, of a yellow colour,
divided transversely b y several articulations.
A s this species not unfrequently occurs on the crusts of lichens,
it is liable to be mistaken for a plant of that order of
vegetables, unless carefully examined. The perithecia are remarkably
prominent, aud scattered about in a most irregular
manner, as represented in the Plate. I do not find the contents
of the perithecia described, and they are quite erroneously
delineated in the figures already published.
It is very doubtful ivhether this species has been found in
VOL. I I I .