Close-up of leaves of cut-leaved evening primrose (Oenothera laciniata) with rust fungus Puccinia dioicae or may be P. oenotherae in Lick Creek ParkLick Creek: Background Notes. College Station, Texas

🎞️ #3134-04
▦ Current Album
College Station, Texas, April 18, 2022

Album 3134: College Station, Texas, April 18, 2022

The image presents a close-up view of leaves from the cut-leaved evening primrose (Oenothera laciniata) plant, showcasing a rust fungus infection. The leaves are green with serrated edges and have been infected by either Puccinia dioicae or P. oenotherae.

**Key Features:**

* **Leaf Appearance:** The leaves exhibit a bright green color with deep veins visible on the surface.
* **Rust Fungus Infection:** Small, orange-brown pustules are scattered across the leaf surface, indicating an active infection by one of the two rust fungus species mentioned in the caption.
* **Pustule Formation:** Each pustule is circular and has a smooth, rounded appearance. The pustules are densely packed on the leaf, with some leaves displaying more pronounced infections than others.

**Possible Rust Fungus Species:**

* **Puccinia dioicae:** This species is known to infect evening primrose plants, causing similar symptoms to those observed in the image.
* **P. oenotherae:** Similar to P. dioicae, this species also infects evening primrose and can cause a range of symptoms, including rust pustules on the leaf surface.

**Conclusion:**

The image provides a clear visual representation of a rust fungus infection affecting cut-leaved evening primrose leaves. The presence of orange-brown pustules on the leaf surface is characteristic of both Puccinia dioicae and P. oenotherae, making it challenging to determine which species is responsible for this specific infection without further analysis or testing. – AI vision

🇪🇸 Descripción en español / Spanish Description

Primer plano de las hojas de la ONENOIR (Oenothera laciniata) con el hongo roya Puccinia dioicae o puede ser P. oenotherae en Lick Creek Park, College Station, Texas, 18 de abril de 2022. La imagen presenta una vista detallada de las hojas de la planta de ONENOIR (Oenothera laciniata), que muestra una infección por roya. Las hojas son verdes con bordes dentados y han sido infectadas por Puccinia dioicae o P. oenotherae. **Características clave:** * **Apariencia de las hojas:** Las hojas presentan un color verde brillante con venas profundas visibles en la superficie. * **Infección por roya:** Se observan pequeñas y naranja-marrón pústulas dispersadas sobre la superficie de la hoja, lo que indica una infección activa por una de las dos especies de roya mencionadas en el título. * **Formación de pústulas:** Cada pústula es circular y tiene un aspecto redondeado suave. Las pústulas están densamente empaquetadas en la hoja, con algunas hojas que muestran infecciones más pronunciadas que otras. **Posibles especies de roya:** * **Puccinia dioicae:** Esta especie es conocida por infectar plantas ONENOIR, causando síntomas similares a los observados en la imagen. * **P. oenotherae:** Similar a P. dioicae, esta especie también infecta la ONENOIR y puede provocar una variedad de síntomas, incluyendo pústulas de roya en la superficie de las hojas. **Conclusión:** La imagen proporciona una representación visual clara de una infección por roya que afecta las hojas de ONENOIR. La presencia de pústulas naranja-marrón en la superficie de la hoja es característica de Puccinia dioicae y P. oenotherae, lo que dificulta determinar qué especie es responsable de esta infección sin análisis o pruebas adicionales. – Spanish translation

Similar Find pictures that are similar to this picture

Thumbnail of picture 3134-03: Underside of leaves of cut-leaved evening primrose (Oenothera ... Creek Park. College Station, Texas, April 18, 2022 Similar(1): Underside of leaves of cut-leaved evening primrose (Oenothera ... Creek Park. College Station, Texas, April 18, 2022 Thumbnail of picture 3134-02: Basal leaves of cut-leaved evening primrose (Oenothera laciniata) with ... Creek Park. College Station, Texas, April 18, 2022 Similar(2): Basal leaves of cut-leaved evening primrose (Oenothera laciniata) with ... Creek Park. College Station, Texas, April 18, 2022 Thumbnail of picture 3134-01: Cut-leaved evening primrose (Oenothera laciniata) with rust fungus ... Creek Park. College Station, Texas, April 18, 2022 Similar(3): Cut-leaved evening primrose (Oenothera laciniata) with rust fungus ... Creek Park. College Station, Texas, April 18, 2022 Thumbnail of picture 3134-21: Details of aeciospores of rust fungus Puccinia dioicae under ... Creek Park. College Station, Texas, April 18, 2022 Similar(4): Details of aeciospores of rust fungus Puccinia dioicae under ... Creek Park. College Station, Texas, April 18, 2022 Thumbnail of picture 3134-17: Aecial peridium of rust fungus Puccinia dioicae under microscope ... Creek Park. College Station, Texas, April 18, 2022 Similar(5): Aecial peridium of rust fungus Puccinia dioicae under microscope ... Creek Park. College Station, Texas, April 18, 2022 Thumbnail of picture 3134-22: Various types of spores of rust fungus Puccinia dioicae under ... Creek Park. College Station, Texas, April 18, 2022 Similar(6): Various types of spores of rust fungus Puccinia dioicae under ... Creek Park. College Station, Texas, April 18, 2022 Thumbnail of picture 3134-23: Teleutospores and aeciospores of rust fungus Puccinia dioicae under ... Creek Park. College Station, Texas, April 18, 2022 Similar(7): Teleutospores and aeciospores of rust fungus Puccinia dioicae under ... Creek Park. College Station, Texas, April 18, 2022 Thumbnail of picture 3134-24: Spores of different sizes of rust fungus Puccinia dioicae under ... Creek Park. College Station, Texas, April 18, 2022 Similar(8): Spores of different sizes of rust fungus Puccinia dioicae under ... Creek Park. College Station, Texas, April 18, 2022