Pl.cell.aph. 10. SARCOTHECEiE. 236. Erysibe. 589 
I. 236. ERYSIBE. Rebentisch. Mould-bud. 
Thalli globular, upon a radiated basis. 
1. Erysibe suffulta . Propped mould-bud. 
Thalli lentilshape, brown; basis fibrous, fulcrate, ra- 
diating irregularly. 
Erysibe suffulta, Rebentisch FI. Neomont. 
Sclerotium Erysiphe coryleum, Persoon Syn. 124, 12. 
Erysiphe coryli, De Candolle FI. Gall. 730. 
On the lower face of hazebleaves. 
2. Erysibe alni . Alder mould-bud . 
Rays many, expanded, very long, free. 
Erysiphe alni, De Candolle FI. Gall. 730.* 
On the lower face of alder-leaves. 
3. Erysibe aceris. Maple mould-bud. 
Rays many, long, interwoven into a thin membranaceous 
pellicle ; thalli at length collapsing and becoming concave. 
Erysiphe aceris, De Cand. FI. Gall. 732.* 
On the lower face of maple-leaves, rarely on the upper. 
4. Erysibe polygoni . Knot-grass mould-bud. 
Rays many, long, interwoven into a membranaceous 
pellicle ; thalli few. 
Erysiphe polygoni, De Cand. FI. Gall. 733. 
On the lower face of knot-grass leaves. 
5. Erysibe populi. Poplar mould-bud. 
Rays many, interwoven into a slight crustlike pellicle. 
Erysiphe populi, De Cand. FI. Gall. 733.* 
On the upper face of black poplar-leaves, rarely on the 
lower. 
6. Erysibe pisi. Pea mould-bud . 
Rays numerous, very long, very slender, sometimes in- 
terwoven into an irregular pellicule. 
Erysiphe pisi, De Cand. FI. Gall. 734. 
On the leaves of peas. 
7. Erysibe convolvuli. Bindweed mould-bud. 
Rays numerous, interwoven into a slightly membra- 
naceous adhering pellicle ; thalli scattered, or in rings. 
Erysiphe convolvuli, De Cand. FI. Gall. 736. 
On the upper face of bindweed-leaves. 
