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Fuligo tatrica, Raciborski, in Hedwigia, 1883, p. 160; Sacc.,
Syll., vii., 1, n. 1229.
On fallen trunks. Hungary.
Ck ateriach ea, Rost.
Sporangia irregularly ruptured during dehiscence, lower
portion persistent, margin lacerated. Columella central, cylindrical,
containing lime. Threads of tbe capillitium delicate,
combined to form a network, nodes not usually developed, here
and there inflated and containing granules of lime, meshes of
the network becoming smaller towards tbe periphery, terminating
in short arms that are attached to the wall.
Crateriachea, Rost., Mon., p. 125; Sacc., Syll., vol. vii,, part I.,
p. 338; Cooke, Brit. Myx., p. 20.
Apparently intermediate in some respects between the Lithodermeae
and tbe GolumeUiferae, departing from the former in
tbe paucity of lime and tbe tbin tubes of tbe capillitium, forming
a network which originates from tbe elongated columella,
but differing from the latter in tbe tendency to form nodes
containing lime not being yet obliterated. Distinct from
Craterium in the distinct columella and rudimentary nodes of
tbe capillitinm.
Distrih. Germany. Species 1.
Crateriachea mutabilis, Rost.
Sporangia cylindrical, attenuated below, then expanding into
a discoid hypothallus, every part reddish-brown; spores dingy
violet, globose, 8—10 g diameter, strongly loarted.
Craieriaehea mutaUlis, Rost., Mon., p. 126, figs. 102, 103;
Cooke, Myx. Brit., figs. 102, 103; Sacc., Syll., vii., 1, u. 1243.
On wood. Germany.
Sporangia i—| mm. high, sometimes sligbtly curved.
DESCRIPTION OF THE FIGURES.
PLATE 1 .
Eih. 1. Tubulina cylindrica. Bull. Portion of an aetlialium broken to show
the arrangement of the component S23orangia ; nat. size.
„ 2. Spore of same, x 1200.
„ 2a. Diagrammatic view of a sporanginm of same, showing the imperforate
wall, the sporangia are usually hexagonal from mutual
pressure, and the free apical portion convex.
„ 3. Mass., plasmodiocarp sporangia, X 40.
„ 4. Spore of same, x 1200.
„ 5. Tuhnlina effiisa, Mass. Aethalium cut to show section ; nat. size.
„ 6. Spore of same, x 1200.
„ 7. Trichia fragilis, Eost., a. genuina, showing single sporangium and
fasciculate or aethalioid form springing from the same hypothallus,
hence from the same plasmodium, x 40.
„ 8, Var. serotina, of same, x 40.
„ 9. Elater of same, x 500.
„ 10. Spore of same, x 1200.
„ 11. Ori6?-aí'iamíWcato, Schrad. Sporangium showing stem, a ; passing
into a thin hypothallus, h ; calyculus or lower persistent portion
of sporangium, c ; and the jiermanent upper portion of the
sporangium, consisting of numerous nodes or irregularly angular
portions filled with coloured granules of lime, and connected by
long, thin internodes ; the spores have been blown away, x 250.
„ 12. Unnamed species. Group of sporangia, one of which is rup)tured
above and showing the ]jale yellow spore-mass, x 40.
,, 13. Spores and portion of capillitium of same, x 350.
„ 14. Enteridiiiih olivaceum, Ehr. Aethalium ; nat. size.
„ 15. Fragment of sporangial walls of same, showing perforations, x 350.
„ 16. Spore-cluster of same, x 500.
„ 17. Single spore of same with the convex free portion (when in the
cluster) warted, x 1200.
„ 18. Diagrammatic representation of a sporangium of same showing the
perforated lateral wall.
„ 19. Tilmadoche nutans, Eost. Single sporangium, x 50.
„ 20. Spores and portion of ca2>illitium showing the small, elliptical
swellings containing lime, a, x 350.
„ 2 1 . Spore of same, x 1200.