Diaporthe crustosa
Diaporthe crustosa
Alternative names
Phomopsis crustosa
Description
The immersed black conidiomata (0.5mm) sit on brown spots surrounded by a narrow black line, on dead leaves and twigs of Holly.
Identification difficulty
host 
Identification aids
| Holly Speckle Trochila ilicina |
Phacidium lauri | Phomopsis crustosa | Microthyrium ciliatum |
|---|---|---|---|
 |
 |
 |
There are some nice comparison images of species 1, 2 and 4 here. |
| Small (<1mm) speckles on the upper side of the leaf only. | Pustules (c.1.5mm) on upper and lower surfaces of the leaf. | Immersed black conidiomata (0.5mm) on brown spots surrounded by a narrow black line. | Tiny black speckles (<0.5mm) on both sides of the leaf. |
Recording advice
Photograph on the host; note host species and substrate in your comments. We recommend that this is confirmed by an expert before submission to NatureSpot
Habitat
On dead leaves and twigs of Holly (Ilex)
When to see it
December to February.
David Gould
Leicester garden
16 February 2003
det. P Thompson
on Holly
David Gould
Leicester garden
16 February 2003
det. P Thompson.
on Holly
Leicestershire & Rutland Map
Enter a town or village to see local records
MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020
UK Map
Additional images
No additional images available for this species.