Table 7.
Ascospores, host, and distribution comparison of eleven sequence lacking known Roussoella taxa with three new species in this study. “-”: not available in the protologue.
| Taxa | Ascospores | Host | Known Distribution | References |
|---|---|---|---|---|
| Roussoella aequatoriensis Hyde | 26–33 × 9–11 µm, fusiform-ellipsoidal, 1-septate, constricted at the septum, brown, with oblique wall, striations running the entire length of the ascospore and with yellow coloured mucilaginous, pad-like appendages at each end | Palm | Ecuador, Puerto Rico | [41] |
| R. alveolata Ju, Rogers, and Huhndorf | 34–42 × 11–13 µm, with ridges between the longitudinal striations. | Bamboo | Indonesia (Java) | [41] |
| R. angustispora Zhou, Cai, and Hyde | 24–28 × 6–8 µm, ellipsoid-fusiform, 1-septate, constricted at the septum, brown, with reticulate wall ornamentations | Bamboo (Bambusa changii) | China (Hong Kong) | [42] |
| R. bambusae (Pat.) Monod | 23 × 5 µm, elliptical elongated, often acute at both ends, not constricted at the septum, colorless and surrounded by a fleeting hyaline sheath | - | - | [43] |
| R. calamicola Fröhl., Hyde, and Aptroot | 20–27(–29.5) × 7–8.5 μm, ellipsoidal, 1-septatae, brown, verrucose, surrounded by a mucilaginous sheath | Calamus | Australian (Queensland) | [44] |
| R. chilensis (Speg.) Ju, Rogers, and Huhndorf | asci contain only four 20–25(–28) × 6–8 µm, ascospores with longitudinal wall striations This fungus is unique amongst Roussoella in having four ascospores per ascus | Bamboo (Chusquea) | Chile | [41] |
| R. donacicola (Speg.) Ju, Rogers, and Huhndorf | ascospores are (6–)6.5–8(–8.5) × 3–3.5 µm, with longitudinal striations | Bamboo (Arundo, Phyllostachys) | Argentina, France | [41] |
| R. palmicola Fröhl., Hyde, and Aptroot | 12.5–24 × 2.5–4 μm, fusiform, 1-septate, brown, striate, with small pads of mucilage at both ends | Rattan (Calamus flabellatus) | Brunei | [44] |
| R. saltuensis Hyde | 25–30 × 8–11 µm, overlapping ellipsoidal, 1-septate, constricted at the central septum, dark-brown, covered with irregular longitudinal striations and surrounded by a mucilaginous sheath which spreads in water | Palm (indet.) | Ecuador | [41] |
| R. serrulata (Ellis and Martin) Hyde and Aptroot | 18–20 × 5–6 µm, characterized by the often deeply (up to 1 mm) immersed ascomata | Pam (Serenoa serrulata) | USA, Florida | [12] |
| R. verruculosa Cand. and Katum | 7–8 × 5 µm, fusoid, septate, slightly constricted at the septum, rounded at the ends, verruculose | Bamboo (Phyllostachys mitis) | France | [45] |
| R. papillate Dai and Wijayaw | 15–17 × 5.5–7 μm, brown to dark brown, rough-walled, with longitudinal striations | Bamboo | China (Yunnan) | In this study |
| R. sinensis Dai and Wijayaw | 16.5–20.5 × 6–7.5 μm, ellipsoid to broad fusiform, upper cells bigger, constricted at the septum, narrowly at both ends, with longitudinal striations | Bamboo | China (Yunnan) | In this study |
| R. uniloculata Dai and Wijayaw | 8.5–12× 3.5–4.5, ellipsoid to broad fusiform, 2-celled, upper cells bigger, occasionally curve, brown, constricted at the septum, with longitudinal striations | Bamboo | China (Yunnan) | In this study |