Table 6.
Cercospora species | Leaf spots, colour, size | Stromata | Conidiophore size (in μm), branching, septa | Conidium sizes (in μm), septa |
---|---|---|---|---|
Pseudocercospora sennicola (YMM12) | Often lacking or indistinct | Lacking to slightly-developed | (16.5–)20.5–92(–98) × (3–)3.5–4.5, branched, 2–6(–8)- septate | (16–)22–54.5(–65) × 3–4.5(–5) μm, 2–6 septa, slightly constricted at the septa |
Ps. angustata ab | Brownish to dingy grey, 0.5–3 mm. | Small | 10–50 × 2–3.5, unbranched, rarely septate | 15–75 × 2–4 µm, 3–7 septa |
Ps. cassiae-alatae c | Present | Small | 3–45 × 2.5–3.5, 0–6-septate | 15–90 × 1.5–2 µm, 1–10 septa |
Ps. cassiae-fistulae d | Greyish brown to dark, 0.5–2 mm. | Well-developed | 10–30 × 2.5–5, unbranched, 0–2-septate | 25–65 × 3–4 µm, 2–8 distinct septa |
Ps. cassiae-occidentalis c | Indistinct | Absent | 60–130 × 4–5, unbranched, 2–6-septate | 62–100 × 3.5–4.8, 3–6 septa |
Ps. cassiae-siameae be | Present | Present | 15.3–27.2 × 3.4–4.2, 0–1-septate | 28.9–93.5 × 3.4–4.2, 2–8 septa |
Ps. nigricans bdf | Yellowish discoloration to greyish brown, 2–3 mm wide | Small | 15–125 × 3–5, branched, 1–3-septate | 20–80 × 3–5, 1–10 septa |
Ps. sennae-multijugae g | Grey brown, 2–18 mm in diam. | Well-developed (5–67 µm diam.) | 11–81 × 3–4, unbranched, 0–2-septate | 75–170 × 2–3.5, 2–7 septa |
Ps. singaporensis c | Yellowish to brownish grey, 0.5–4 mm in diam. | Absent | 31–77 × 4.5–5.5, branched, 0–2(–4)-septate. | 30–67 × 3.5, 3 (rarely 1 or 4) septa |
Ps. taichungensis d | Greyish brown, 1–5 mm wide | Well-developed | 10–25 × 1–4.3, unbranched, 0–2-septate | 20–55–100 × 1.5–3, 1–6 indistinct septa |
aLenné (1990), bDeighton (1976), cYen and Lim (1980), dHsieh and Goh 1990, eChiddarwar (1959), f Cooke and Massee (1883-1884), gSilva et al. (2016)