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Tilmadoche Berkeleyi, Mass.
Sporangia globose, very slightly or not at all umbilicate
below, dark Uue-grey, frosted with minute particles of lime ;
stem Uackish-h-own, slender, attenuated upwards, tbick at the
base, and passing into a very distinct, circidar, pale hrown hypothallus,
longitudinally wrinkled, filled witb granules of bme and
masses of organic matter, usually straight; capillitium dense,
threads 3—4 g thick, goale yellowish-broian, combined to form
a veiy irregular network, swollen portions very rare, small, and
with only a few scattered granules of lime, apparently entirely
absent ; spores globose, lilac-brown, very minutely warted,
11—12 g diameter.
Physantm columbinum, Fr.
A specimen so named by Berkeley, but certainly not that
species.
(Type in Herb. Berk., n. 10,813.)
On twigs. New England, U. S.
Gregarious, growing often in rows, 2—2A mm. high.
Tilmadoche compacta. Wing.
Sporangia ^ brownish-white, flattened, globose, occasionally
globose, nodding, borne on subulate, yellowish-white stipes, which
have a brown or blackish base, and reach to a height of three
or lour times the width of the sporangium; sporangium wall
studded with numerous, snow-white lime-granules, the remainder
of the wall bronze-colour, witb a metallic lustre, splitting on
maturity in a floriform manner, witb from six to twelve lacifiiae;
capdhtmm, after removal of the spores, white, with a faint
bluish tint under reflected light owing to the translucence or
iridescence of its delicate threads ; the latter originate from a
central lime-granule which is generally quite large, branch
several times as they proceed towards the surface of the sporangium,
and join into a dense, compact net, the ends of the
last branches attached to the inner side of the sporangium wall ;
lime-granules in the capillitium, very few, small, white, fusiform;
spores bright brown-violet (brown in the mass), very
delicately warted, 7—9 mk.
Fairmount Park, Phila., Pa. and Ohio (Morgan).
This Tilmadoche has marked characteristics. The stipe for
a short distance from tbe base is very dark, but suddenly
changes to a yellowish-white. When the sporangium bursts,
the top part of the wall generally pulls out tbe capillitium
immediately over the central lime-granule, so that the latter
is exposed to view. In some cases, wben quite large, the
granule falls out, leaving a circular empty space in tbe centre
of the sporangium, without disturbing the outline of tbe capillitium.
Tbe capillitium is very flimsy, and its faint bluish tint
in the mass quite marked under a parabolic reflector. The
metallic lustre of tbe sporangium wall is constant in the specimens
collected during different summers. (Wing.)
Tilmadoche compacta, Wingate, Acad, Nat. Sci. Phil, 1889,
p. 48.
Exsiee.—Ellis, N. Amer. Fung., 2087 (as Tilmadoche columbina,
B.).
Tilmadoche oavipes. Berk.
Plasmodium white, venulose, anastomosing; young sporangia
flesb-oolour, when older becoming sprinkled with brick-red
powder, globose, stem white, thickened at the base, hollow;
spores blackisb-purple, globose, smooth; capillitium scanty,
yellow.
Tilmadoche cavipes, Berk. Three new Indian Fu ngi; in Grev.,
vol. xi., p. 39 (1882); Sacc., Syll., vii., 1, n. 1252.
On leaves of different species of Phalaenopsis. Andaman
Isles. Lieut.-Col. E. S. Berkeley, 1882.
The filmy reticulate mycelium at length disappears, and the
peridia are scattered, looking at first sight from their white
stems like Diachaea. Tbe species is altogether distinct from
T. lateritia, Lev. Tbe dust of the peridia consists of irregular
fragments of a bright orange-red.
Tilmadoche anómala, Mass. (n. sp,).
Gregarious; sporangia globose or slightly depressed, minutely
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