 Phylum：Ascomycota >> Class： Ascomycetes >> Order： Hypocreales |
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 BCRC Number： |
NO BCRC Number! | |||
| Scientific Name： |
Torrubiella dimorpha | |||
| Author： |
Gibellula dimorpha Tzean Hsieh et Wu. Torrubiella dimorpha Tzean et al., Mycological Research 102: 1350-1354. 1998. |
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| Description： |
Infected spider host covered with dense mycelial mat, white, yellowish white to orange white (4-5A2), pulvinate, tomentose, lanose, margin spreading, forming byssoid subiculum. Hyphae branched, septate, hyaline, distinctly verrucose, sometimes smooth-walled, 2.4-5.6 μm wide. Perithecia produced on mycelial mat, superficial or partly embedded, scattered, ovoid, 490-600 × 250-320 μm, yellowish white (1-2A2), tomentose, perithecial wall 12-18 μm thick. Asci eight-spored, cylindrical, 220-310 ×6.4-8.2 μm wide, with a thickened perforated cap, 4.8-6.4 μm thick, 6.8-8.7 μm wide. Ascospores filiform, multiseptate, arranged in parallel row, 1.6-2.4 μm wide, breaking into partspores. Partspores cylindrical, truncate, smooth, hyaline, 3.0-8.7 × 2.0-2.3 μm. Synnemata solitary, arising from mycelial mat, cylindrical, attenuated, curved, 5.0 mm ×200 μm, consisting of compact septate longitudinal hyphae, hyaline, smooth, rarely roughened, 2.2-4.0 μm wide. Conidiophores mono-, synnematous, greenish white to pale green (30A2-3), 140-422 × 7.1-10.3 μm, septa thickened, conspicuous, often darkly pigmented, base distinctly roughened, warty, narrowing abruptly to a slender, smooth-walled apex, 3.2-4.5 μm wide, terminating in a swollen vesicle. Conidial head spherical, 36-54 μm in diam. Vesicle globose to subglobose, 7.9-11.1 μm in diam. Phialides cylindrical to narrowly clavate, with a short neck, often apically thickened, smooth, hyaline, 5.6-8.7 × 2.5-4.0 μm, numerous, borne on metulae, up to 21. Metulae broadly obovoid, narrowing towards base, hyaline, 7.1-11.9 × 6.4-8.7 μm, numerous, borne on vesicle, up to 27. Conidia fusoid, ellipsoidal or lemon-shaped, hyaline, smooth-walled, single or catenate, 3.2-4.1 × 2.0-2.4 μm. Granulomanus morph conidiophores present, spherical conidial head bearing densely whorled metulae (up to 20) and polyblastic conidiogenous cells, roughened to distinctly verrucose, 68-140 × 5.2-7.1 μm, sometimes branched hyphae bearing solitary, polyblastic conidiogenous cells. Metulae broadly obovoid, 5.6-8.7 × 4.4-6.4 μm, smooth, sometimes minutely warted. Conidiogenous cells cylindrical, ellipsoidal, narrowly clavate, conoid, or irregular shaped, 7.9-20.6 × 3.2-4.0 μm, smooth, sometimes roughened, bearing 1-3 conspicuous denticles. Conidia filiform, smooth-walled, hyaline, 9.1-23.8 × 0.8-2.4 μm. | |||
| Specimens： |
Taiwan, Kaohsiung County, Liukuei, Shanping, on spider, Arachnida, Ar.80, 22 Oct 1994. |
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| Habitat： |
on spider. | |||
| Distribution： |
Taiwan. |
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| References： |
Tzean, S S et al. 1998. |
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| Provided： |
S. S. Tzean and L. S. Hsieh |
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| Note： |
new species, rare occurrence. | |||