Uredo monsterae | Rusts on Monstera

Taxonomy

Family Pucciniaceae

Uredo monsterae Syd.

No synonyms

Description

Uredinia in discolored spots on leaves, spots ellipsoidal to sub ellipsoidal, 0.5–2 cm diam, somewhat densely aggregated, immersed, uredinospores subglobose, ovoid to ellipsoid, slightly angular, 18–22 x 21–27 μm, wall colorless, 1–1.5 μm, densely echinulate, pores obscure.

Chardon CE and Toro RA. 1934. Mycological Explorations of Venezuela. Monogr. Univ. Puerto Rico, B 2: 1–351.

Reported hosts

Monstera acuminata, Philodendron sp.

Reported distribution

Venezuela

DNA sequences available

No sequences

Comparison to other rusts on Monstera


taxon	shape	color	measurements (μm)
Pseudocerradoa paullula	globose	light yellow-brown	26.6–28.5
Uredo monsterae	ovoid to ellipsoid	hyaline	18–22 x 21–27
Uredo monstericola	ovoid to ellipsoid	hyaline	19–29 x 29–40

References

Chardon CE and Toro RA. 1934. Mycological Explorations of Venezuela. Monogr. Univ. Puerto Rico, B 2: 1–351.

Notes

Image credit: All images by Megan Romberg USDA-APHIS-PPQ-NIS

BPI847386 Monstera sp. leaves with Uredo monsterae and measurements recorded by Chardon	label for BPI847386
BPI847386 Monstera sp. leaf with uredinia of U. monsterae	BPI847386 Monstera sp. leaf with uredinia of U. monsterae
uredinia of U. monsterae	uredinium of U. monsterae
urediniospore of U. monsterae	urediniospore of U. monsterae
urediniospore of U. monsterae	urediniospore of U. monsterae
comparison of urediniospores from L-R, P. paullula, U. monsterae, and U. monstericola; scale bar = 10 μm