554 177. Polyactis. 8. NEMATOMYCEiE. Pl. cell. aph. 
XI. 177. POLYACTIS. Link. Rayed-mould. 
Thalli upright, stiff; branches naked at bottom, divided 
at top; twigs short, blunt, crowded; sporidia globular, on 
the twigs. 
Polyactis vulgaris . Common rayed-mould. 
Thalli greenish-grey, close ; sporidia glaucous. 
Botrytis ramosa, Persoon Syn. 690. 
Botrytis ramosa cinerea, seminibus ereetis, Micheli N. Gen. PL 212. 
Polyactis vulgaris. Link in Berl. Mag. 3, 16. 
On rotten herbs. 
XII. 178. PENICILLUM. Link. Pencil-mould. 
Thalli flocklike, simple or branched, dilated at top and 
split into a bundle of twigs, which enclose a head of glo- 
bular sporidia. 
1. Penicillum expansum. Expanded pencil-mould. 
Thalli flocklike, naked ; the barren lying down* en- 
tangled, greyish; the fertile upright, simple, white; spo- 
ridia ash-colour, glaucous. 
Monilia digitata, Persoon Syn. 693. 
Penicillum expansum, Link in Berl. Mag. 3, 17. 
On rotten fruit, or mushrooms. 
2. Penicillum candidum. fVhite pencil-mould. 
Thalli flocklike, branched, snow-white ; sporidia white. 
Penicillum candidum, Link in Berl. Mag. 3, 17. 
On rotten herbs and fungi. 
Tufts roundish or irregular. 
XIII. 179. ASPERGILLUS. Micheli. Knot-mould. 
Thalli flocklike, simple or branched, thickened at top 
into a club ; sporidia globular, collected about the tip in 
heads, and rather in rows. 
1 . Aspergillus glaucus. Glaucous knot-mould. 
Thalli in loose tufts, grey, not branched, white ; heads 
at first white, afterwards glaucous. 
Aspergillus capitatus, capitulo glauco, seminibus rotundis, Micheli N. 
Gen. PL 212. 
Mucor glaucus, Lin. Syst. Veg. 2, 1022. 
Monilia glauca, Persoon Syn. 691. 
Aspergillus glaucus, Link in Berl. Mag. 3, 16. 
On apples, and other juicy fruits. 
