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Pl.cell.aph. 7. PROTOMYCEiE. 161. Stilbospora. 5^5
XL 161. STILBOSPORA. Persoon. Stilhospore.
Sporidia dark-coloured, ringed, in irregular heaps.
1. Stilbospora asterosperma. Star-seeded slillospore.
Sporidia starlike, 3 or 4-rayed.
Stilbospora asterosperma, Persoon Syn. 96.
On the branches of beech, birch, and maple-trees.
2. Stilbospora sphcBrosperma. Round-seeded siilbospore.
Sporidia globular, minute.
Stilbospora splijerospenna, Persoon Syn. 97.
On the dry stems of the common bankside reed.
C. XYLOMiDEiE. Sporidia budlike, enclosed in a crust;
crtist swollen, variable in shape; inside pale; texture ir-
regular, cellulaf, under the epidermis of plants.
XII. 162. XYLOMA. Persoon. Xyloma.
Crust hard, inside fleshy, cellular.
1 Xyloma salicinum. JVillow xyloma.
Crust black, shining, thick ; inside granular, white.
Xyloma salicinum, Persovn Syn. 103.
On willow-leaves.
Solitary, bossed.
/3. conjluens. Crust confluent, disk naked.
2. Xyloma acerinum. Maple xyloma.
Crust black, flat, surface rather unequal with winding
lines.
Xyloma acerinum, Esenbeck Syst. 2, 5.
Xyloma punctatum, Persoon Syn, 104. "
On the leaves of maple and sycamore-trees.
Aggregate, orbicular.
/3. conjluens. Crusts confluent.
Xyloma acerinum, Persoon Syn. 104.
3. Xyloma leucocreas. White-Jlesh xyloma.
Crust thick, tubercular ; inside white.
Xyloma leucocreas, De Cand, Syn. 63.
On the leaves of different species of willow.
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