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| Record Summary | Cylindrosporium state on fading leaves of Broccoli |
| Found as | Anamorph |
| Date | 23 April 2009 |
| Associated organism | Brassica oleracea var italica |
| OS grid ref | OSGR: SU57 |
| Lat/Lon | 51° 30’ N, 1° 10’ W |
| Vice County | Berks, VC no: 22 |
| Country | England |
| Voucher | 23 Apr 2009[E] (Please quote this in any queries about this record) |
Notes:
Leaf upper surface with pale brown necrotic spots surrounded by purplish zones.
Under surface with pale zonate leaf spots bearing concentric rings of grey then black, rounded or elliptical to polygonal conidiomata up to 1mm across. The conidioma is at first silver-grey and closed, and covered by a milky-white, peelable film of deposited hyaline conidia which appears to form a halo to the infection spots. Then a slit opens and the epidermis peels back to reveal the black pycnidium
Centre of spots pale brown, necrotic, bearing blackish brown rounded or elliptical to polygonal pycnidia up to 1mm across, sometimes with exuded tiny white or buff grains of carbonate (bubbles in lactophenol).
Pycnidia: hypophyllous, immersed, closed, silvery, cuticle opening by a slit to reveal blackish brown pycnidium
Conidia: hyaline, cylindric to tapered, rounded at apex, apiculate at base, aseptate, 9-15/2-3µm.
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