A CONTRIBUTION TO THE FLORA OF THE COUNTY. 293
AEUSTILAGINE.
Ustilago longissima Sow.
On Glyceria aquatica, Manningtree (C.
U. hypodytes Schlecht.
On Triticum repens, Burnham-on-Crouch (C.).
U. segetum Bull. (U. carbo Tul.).
On Avena sativa, Sutton and Writtle (C.) ; on Arrhenatherum
avenaceum, Chelmsford (C.) ; Canvey Is. (W.).
*U. bromivora Tul.
On Bromus mollis, Chelmsford (C.) ; Hazeleigh (T.).
*U. maydis D.C.
On Zea mays, Romford (C. B. Russell, Esq.).
U. violacea Pers. (U. antherarum Fr.).
On Cerastium triviale, Chelmsford (C).
U. tragopogi Pers. (U. receptaculorum Fr.).
On Tragopogon pratensis, Chelmsford (C).
*Sphacelotheca hydropiperis DeBy.
On Polygonum hydropiper, Markshall (T. and C.) ; Mill Green
(C.).
*Urocystis violae Sow.
On Viola hirta and V. odorata, Chelmsford (C.).
SPECIES RECORDED BY DR. COOKE. NOT MENTIONED ABOVE.
Puccinia coronata Corda (syn. AEcidium crassum, Pers.).
P. oblongata Link. (syn. Uredo oblongata Grev.)
P. hydrocotyles Link (including Uredo hydrocotyles, M.)
Roestelia cancellata Rev.
Melampsora populina Lev. (including Uredo populina Muntz).
M. circaeae Sch. (syn. Puccinia circaeae Pers. and Uredo circaeae
Schum.)
Uredo symphyti D.C.
Tilletia striaeformis Westw. (syn. Ustilago salveii B. and Br.)
Urocystis anemones Pers. (syn. U. pompholygodes Lev.)
SPECIES FOUND BY MR. VARENNE, BUT NOT MENTIONED ABOVE.
Puccinia coronata Corda (with AEcidium crassum Pers.)
P. magnusiana Korn. (see above)
P. oblongata Link (syn. Trichobasis oblongata B.)
Phragmidium rubi-idaie Pers. (syn. P. gracile Berk.)
Gymnosporangium sabinae Dicks (syn. Raestelia cancellata
Reb.)