542 157. Diceoma. 7. PROTOMYCEM. Pl. ceil. apk. 
Puccinia polygoni amphibii, Persoon Syn. 227. 
On the lower face of the leaves of narrow-leaved pond- 
weed. 
2. Diceoma scirpi. Rush diceome-. 
Sporidia rather clubbed; upper cell large, globular ; 
pedicell short; tufts blackish, roundish, compact. 
Puccinia scirpi, De Cand. Syn. 46. 
On the decaying stems of bullrushes. 
3. Diceoma graminis. Grass diceome. 
Sporidia rather clubbed; upper cell large, globular ; 
pedicells short; tufts yellow, brown, or black, scattered, 
parallel. 
Puccinia graminis, Persoon Syn. 228. 
Uredo frumenti, Sowerby Fungi, 140. 
On the stem and leaves of grasses. 
4. Diceoma anemones. Anemone diceome. 
Sporidia oblong; cells rounded; pedicells short; tufts 
brown, hemispherical, in rows or marginal. 
Puccinia anemones, Persoon Syn, 226. 
ZEcidium fuscum, Sowerby Fungi, 53. 
On the lower face of the leaves of wood-anemonies. 
Plants on which this fungus is parasitic have been taken 
for a new species of fern, tnder the name of the Conjurer 
of Chalgrave’s fern, he having been the first botanist who 
observed it. 
5. Diceoma menthe. Mint diceome. 
Sporidia oblong; cells rounded; pedicells short; tufts 
brown, threadlike, rather thicker at bottom; fufts black, 
hemispherical, powdery. 
Puccinia menthz, De Cand. Syn. 45. 
On the lower face of the leaves of several species of mint. 
6. Diceoma ribis. Currant diceome. 
Sporidia cylindrical, blunt; pedicells short; tufts brown, 
orbicular, girt with the epidermis. 
Puccinia ribis, De Cand, Syn. 45. 
On the upper face of the leaves of red currants. 
7. Diceoma aviculare. Knotgrass diceome. 
__. Sporidia ovoid, blunt ; pedicells long, flaccid ; tufts brown, 
oblong, or roundish. 
