Biology Reference
In-Depth Information
Maravalia sapotae (formerly
Scopella sapotae
,
Syn.
Uredo sapotae
). On sapodilla in Florida,
infecting leaves in winter and early spring.
Scopella sapotae
Triphragmium
Syn.
Uredo sapotae
(see
Pucciniaceae. Teliospores stalked, with three
cells forming a triangle, each with a single pore.
Triphragmium ulmariae
Maravalia sapotae
). On sapodilla in Florida,
infecting leaves in winter and early spring.
▶
0,
I,
II,
III on
meadowsweet.
Sphenospora
Uredinopsis
Pucciniaceae. Tropical. Telia and peridia subepi-
dermal, then erumpent; teliospores waxy, two-
celled, on pedicel.
Sphenospora mera On bletilla, Florida.
Melampsoraceae. Telia on ferns; teliospores
scattered irregularly in mesophyll, rarely in sub-
epidermal crust, typically several-celled; aecia
white.
Uredinopsis osmundae
Fir-Fern Rust
.0,Ion
balsam fir, widespread; II, III on
Osmunda
spp.
Uredinopsis phegopteridis
Fir-Fern Rust
.0,I
on balsam fir; II, III on
Phegopteris dryopteris
.
Uredinopsis pteridis (
U. macrosperma
).
Fir-
Fern Rust
. 0, I on various firs; II, III on
Pteridium
aquilinum
. Aecia are on 1-to 5-year needles of
Pacific silver, white, lowland white, alpine, and
noble firs.
Uredinopsis struthiopteridis
Fir-Fern Rust
.0,
I on balsam, lowland white, alpine, and noble firs;
II, III on ostrich fern.
Sphaerophragmium
Pucciniaceae. Teliospores stalked, four-to sev-
eral-celled, with transverse and horizontal septa;
on legumes.
Sphaerophragmium acaciae On
lebbek,
Florida.
Tranzschelia
Pucciniaceae. Teliospores two-celled, stalked;
uredia
Uredo
with
pseudoparaphyses;
on
Ranunculaceae and
Prunus
.
Tranzschelia discolor (
T. pruni-spinosae
var.
discolor
).
Rust
of stone fruits.
Peach Rust
.
0, I on
Anemone coronaria
; II, III on apricot,
peach, plum, prune, almond, and cherry, in late
summer. Yellow angular spots appear on leaves
with powdery spore pustules on underside, red-
dish on peach, dark brown on almonds; some-
times with late season defoliation. Peach fruit
may have round sunken green spots; twigs may
have oval blisters in early spring. Urediospores
wintering on sucker shoots can start spring infec-
tion without the alternate host. The Drake variety
of almond is most susceptible.
Tranzschelia pruni-spinosae var. typica 0, I on
anemone, hepatica, thalictrum, and buttercup; II,
III on wild species of
Prunus.
Form genus; uredia with or without peridia.
Uredo artocarpi Breadfruit in Hawaii.
Uredo coccolobae On sea-grape, Florida.
Uredo ericae
(
Pucciniastrum ericae
). On erica,
California.
Uredo phoradendri On mistletoe.
Uromyces
Pucciniaceae. Like
Puccinia
but teliospores with
one cell, yellow to dark; aecia when present with
a persistent peridium (see
Fig. 3
).
Uromyces appendiculatus
Bean Rust
. 0, I rare
on bean; II, III general on dry beans, widespread
but infrequent on lima bean, scarlet runner bean.
This is the true bean rust, an old disease reported
