On MEA, colonies appear woolly, flat, irregular, initially white with abundant mycelium, gradually becoming greenish to dark green after 2–3 days with white hyphae on the undulate margin, eventually turning black; reverse dark green to black. At 27 °C, in the dark, mycelium reached the edge of the Petri-dish in 20 days with a growth rate of 0.4 cm per day. On PDA, colonies appear woolly, initially white with abundant mycelium, gradually becoming greenish to dark green after 2–3 days with white hyphae on the undulate margin, eventually turning dark green to black; reverse black. After
10 days in the dark at 27 °C, mycelium reached the edge of the
Petri-dish with a growth rate of 0.9 cm per day (Wikee et al., 2013).

The species make up several ecosystems, which are under threat. I suggest including it in the list of least concern (LC).

According to GBIF there are 337 occurrences in the world.

According to GBIF, the country with the highest number of occurrences is Brazil.

Phyllosticta capitalensis has been repeatedly isolated worldwide from healthy plant tissues as an endophyte and rarely from leaf spots as a pathogen, and has been recorded from almost 70 plant families.

In Brazil the species was registered in an environmental protection area, but it is an area that suffers from anthropogenic actions.

Species found in environmental conservation area in Brazil. But like other species it needs preservation together with the beings with which it is associated.

The fact that it is isolated so often as an endophyte has important implications to studies of fungal biology including plant pathology methodology, ecological results of endophyte studies and screening for novel compounds from endophytes.

Screening for novel compounds.

https://www.gbif.org/species/2612180