A . Stipitate—stem distinct.
1 1 0 5 . Diderma flo rifo rme . P. “ Flower-like Diderma.”
Yellowish or whitish ; stem slender, peridium spherical, splitting
in a stellate manner, reflexed ; columella ob-conical ; spores
black-brown.—Pers. Nyre.)?. 164. Dr. N.M. iii.». 99. B u l l t .3 1 \.
Eng. Fl. v. p . 310.
On decaying trunks, &c. Autumn. [Mid. Carolina.]
Sterna springing from a common thiokish membrane.
1 1 0 6 . Dide zm a um b ilic a tum . P . “ Umbilicated Diderma.”
Wliitish, stem obese, peridium sub-rotund, umbilicate beneath,
split into laciniæ, at lengtli patent ; columella rufescent ; spores
purplisb-black.—Dr. N.M. iii.)). 99. Fl.Dan. 1.1912, f . l . Ena
F I . y . p . 310.
On bark of trees, &c. Appin.
of WiZtoSZ— resembling strongly the nucleus
Dide zm a c it z in nm . Fr,
Diderma.”
“ Lemon Tellow
Lemon-yellow; stem finn, even; peridium hemispberical
squamulose, dehiscent; columella spurious ; spores black-brown’
—Dr. N.M. iii. p . 100. F l. Dan. 1.1312, f . 1. Eng. F l. Y. p . 310.'
On leaves of Sphagnum. Aug.—Oct. Inverary.
f ’?"* adhering hy a separate membranaceous base : stem
Bhortish, thickest below when dry tawny-yellow. Peridium brownish¡ splitmanner,
covered under a lens with minute
roundish white scattered scal^.—Eng. Fl.
B. Stipitate.—stem spurious, somewbat confluent.
X108. D id e zm a v e z n ic o s um . P . “ Varnished Diderma.”
Pendía obovate, external tbick, bay-brown, sbining ; internal
yellow; stern thread-like, sbort, lax ; spores blackish.—Dr. N.M.
iii.)?. 102. Dicks, i. t. 3 .f. 6. Sow. i. 136. Pers. Obs. i. t.3 f . l F l
D a n .t.l3 1 2 ,f.2 . N e e s .f.llO . Grev.t. 111. Enq. F I . y p 311
KL exs. no. 175,
On grass, twigs, moss, &c. [Carolina, Maine, U .S.]
(Fig. 124, cluster nat. eizCj peridium magnified.)
Î1 0 9 . D id e zm a sp um a z io id e s . Fr. “ Effused Diderma.”
Effused, crustaceous, cohering ; peridia subrotund, or irregular
; exterior white ; interior ash-colour, often confluent in a
cellulose crust, columella spurious, white, as well as the flocci ;
sporesblack.—Dr. N.M. iii./?. 104. M ic h .t.9 G ,f2 . B u ll.t. 424
f .2 . Now. <.280. Fl. Dan.t. 1918, f 2. Eng. F I . y .p . 311.
On leaves, moss, &c.
^ The specimen before me has obovate-oblong, distinct peridia, stems aris-
mg trom the hypothallus, a cylindrical central white columella, and flocci
ot the same colour, mixed with the spores. The stem is entirely formed
from the hypothallus and hyaline.—Jf. J. B.
C. Sessile.
1110. Dide zm a lu c id um . B . ^ B r . “ Bright Diderma.”
Subglobose, sessile, splitting in a somewbat stellate manner,
bright reddish yellow, internally yellow, mass of fruit globose,
black flocci brown, triangular at the points of ramification, and
yellowisb ; spores globose, black, very minutely ecbinulate.__
B. 4 Br. Ann. N .II. no. 938,1.15,/. 9.
On Jungermannice and moss.
Scattered or crowded, peridium subglobose, splitting in an irregular stellate
manner. Spores ('0005 in.) -0125 m.m. diameter. Smaller than D
mrnwosnm, in which the spores are inclined to be angular, and much ualer
under the miorosoope.
1111. Dide zm a T z e v e ly a n i. F r. “ Trevelyan’s Diderma.”
Sessile, ovate or globose ; outer peridium splitting into many
regular, linear, subreflexed, laciniæ ; inner obsolete ; columella
minute; spores black. Dr. N.M. iii.)?. 105. Grev.t. 132 Ena F l
Y . p . 311. ■
On Bryum ligulatum.
In specimens oommunieated to Sowerby by Mr, Trevelyan there is a very
short, but distinct cylindrical stem, the peridium at first appears under the
lens like a coriander seed pale-brown, with pallid striæ, which indicate the
points at which it will split, and perfectly smooth. Within this is a distinot
white inner peridmm, lining it very closely, and probably in general breaking
off with it. Floooi greyish. I can find no trace of a columella —M. J. B
1112. Dide zm a C a zm ich a e lia n um ,
Diderma.”
B e r k “ Carmiohael’s
Perfectly sessile, outer peridium brick-red, splitting into many
revolute rays, inner white, intimately connected witb tbe outer ;
columella large, spores black-brown.—D«^. D(. Y.p. 34.
:J 4