Gymnosporangium nidus-avis Thaxt.

• Region

  North America

• Country

  United States of America

• State/Province

  Ohio

• County/Municipio

  Erie Co.

• Locality

  Sandusky

• Coordinates

  41.4489, -82.708

• Coordinate Uncertainty (m)

  7110

• Georeferencing Method

  GEOLocate Web Application. Used GEOLocate Web Application (batch client) to georeference locality with high precision.

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

4% i
OHIO FUNGI
£5	With Reprint of the Original Descriptions
q	W. A. Kellerman, Ohio State University
O	:..........?	-?	------•:
CO
0 185. Gymnosporangium nidus-avis Thax.
Roestelia nidus-avis.
On Amelanchier canadensis (L.) Medic.
"Sandusky, Erie Co., Ohio.	Juty> 1904.
Coll. W. A. Kellerman.
“Gymnosporangium nidus-avis, nov. sp.
“Sporiferous masses when young, cushion like, irregularly globose or
oval, small and distinct or elongate and confluent according to the habi-
tat ; rich red brown; when mature indefinitely expanded by moisture,
orange-colored. Teleutospores two-celled, irregular in shape broadly
ovate to sub-elliptical or fusiform, bluntly rounded or slightly tapering
towards the apex, symmetrical or often slightly bent. Average dimen-
sions .055 x .025 mm. Promycelia several, not uncommonly proceeding
from either extremity. Pedicels when young often more or less inflated
below the spore. Mycelium perennial in leaves, branches or trunks of
Juniperus Virginiana very commonly inducing a “bird’s nest” distortion.
“Roestelia stage. Spermogonia yellowish orange, preceding the
aecdia by about ten days. Aecidia hypophyllus or more commonly on
petioles, young shoots and especially on young fruit, densely clustered,
brown, at first subulate, then fimbriate; the peridia splitting to the base
with its divisions slightly divergent. Peridial cells rather slender; the
ridges somewhat prominent, sublabyrinthiform, horizontal or becoming in-
wardly oblique towards the extremities. Average measurements (towards
the apex of the peridia) .07 x .018 mm. Aecidiospores smooth, spherical
or irregularly oval to oblong, average diameter 25 mm.” Roland Thax-
ter. Connecticut Agricultural Experiment Station, Bulletin No. 107:6.
April 15, 1891.