Table 2.
Morphological comparison of Erysiphedeutziicola and closely related species in Braun and Cook (2012).
| Species name | Host family | Conidia (μm) | Length of conidiophores (μm) | Diameter of chasmothecia (μm) | Appendages | Number of asci | Ascospores | ||
| Number | morphology | Number | Colour | ||||||
| Erysiphe deutziicola | Hydrangeaceae | 18.6‒35.6 × 10.2‒14.1 | 54.7‒171.0 (‒234.7) | 71.0‒100.0 | 6‒14 | mycelioid | 4‒6 | 5‒8 | colourless |
| E. abeliae | Caprifoliaceae | ‒ † | ‒ | (85–) 95–120 | 10–40 | mycelioid | 4–8 | 6–8 | yellowish |
| E. braunii | Asteraceae | 35–45 × 17–23 | 80–110 | 90–130 | 18–36 | mycelioid | 6–16 | 2–3 | colourless |
| E. deutziae | Hydrangeaceae | 25–35 (–40) × (16.5–) 17.5–20 (–22) | 50–75 | 70–150 | 4–16 | dichotomous | 2–6 | 4–8 | colourless |
| E. hydrangeae | Hydrangeaceae | ‒ | ‒ | 120–225 | 19–40 (–48) | circinate | (5–) 6–12 (–21) | (4–) 5–8 | colourless |
| E. poeltii | Hydrangeaceae | 26–33 × 13–18 | ‒ | 75–110 | 5–20 | mycelioid | (3–) 4–5 (–6) | 5–8 | colourless |
| E. schizophragmatis | Hydrangeaceae | 27–38 × 14–18 | up to 90 | 80–120 | 7–22 | circinate | 6–13 | 4–5 | colourless |
| E. yanshanensis | Hydrangeaceae | average 26.5 × 14 | 45–80 | average 120 | 5–23 | circinate | (3–) 4–9 (–11) | (2–) 5–7 (–8) | yellowish |
| Pseudoidium hortensiae | Hydrangeaceae | (18–) 25–40 (–45) × (9–) 12–19 (–22) | 40–130 (–175) | ‒ | ‒ | ‒ | ‒ | ‒ | ‒ |
† “‒” means no related information