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552 ni.Byssoclad. S.NEMATOMYCE^. Pl.cell.upk.
3. ByssocLadium punctiformis. Dotlike mealmould.
ThaUi in tufts, blackish-grey, opaque, pressed close
very minute, rather torulose; branches slightly one-rowed;
joints rounded.
Conferva punctiformis, Roth Cat. 3,220.
On neglected windows.
Thallus rather beadlike, joints as long as broad.
4. Byssus dendrilica. Treelike mealmould.
Thalli in tufts, blackish-green, bent; branches slender,
slightly pinnated.
Conferva dendritica, Jgardh Syn. 96.
Deraatium olivaceum, Albert et Schw. Consp,
On old books in damp places.
Tiifts circular, a quarter of an inch in diametei*.
B. AsPERGiLLiDE^. Tkulhis flocklike, simple or
branched, mostly jointed, tubular, free; sporidia naked,
towards the tip of the thallus.
VI. 172. HAPLARIA. Link. Skein-mould.
Thalli simple or slightly branched, distant; sporidia
globular, crowded in places.
Haplaria grisea. Grey skei?imould.
Thalli scattered, simple, 2-cut, forked, grey.
Haplaria grisea. Link in Bert. Mag. 3, 11.
On dry leaves of reeds, bur-reeds, Sec.
VII. 173. ACROSPORIUM. Esenbeck. Chain-mould.
Thalli simple, aggregated, beadlike at top ; joints separating
by age.
Acrosporium monilioides. Necklacelike chainmould.
Thalli in tufts, snow-white, spreading, powdery.
Acrosporium monilioides, Esenbeck Syst. 2, 14.
Monilia hyalina, Fries Obs. Mycet. 1815, 210.
Botrytis simplex monilis, Alb. et Schw. Consp. 363.
On the leaves of grasses.
VIII. 174. VIRGARIA. Esenbeck. Brush-mould.
Thalli flocklike, upright, stiff; branches forked ; spo-
ridia difluent, globular, crowded towards the tips.