Name: Ganoderma resinaceum
Citation: in Patouillard, Bull. Soc. mycol. Fr. 5: 72 (1890)
Deprecated Synonyms: Fomes resinaceus (Boud.) Sacc., Scindalma resinaceum (Boud.) Kuntze, Friesia resinacea (Boud.) Lázaro Ibiza, Ganoderma lucidum subsp. resinaceum (Boud.) Bourdot & Galzin, Ganoderma chaffangeonii Pat., Fomes chaffangeonii (Pat.) Sacc., Scindalma chaffangeonii (Pat.) Kuntze, Mensularia vernicosa Lázaro Ibiza
Ganoderma lucidum is a synonym, according to some authors.
G. resinaceum (Boud.)Pat.
Spores measure 9-II15 x 6-2-8 (10o5 x 7-2) tL, Q = 1"45. Apically the outline is at first obtusely conical formed by a translucent continuous
perisporium, but finally this breaks down to give a truncated region, 1-5- 2-5 p diam. Ultrastructural examination of the spore surface reveals a
continuous perisporial layer which, apart from the apex, remains entire although break-down finally occurs. In scanning electron micrographs the perisporial surface appears smooth or faintly rugulose due to the underlying exosporial verrucae. When perisporial fragmentation occurs, it starts with small circular indentations and perforations between the verrucae, which later coalesce to form irregular slit-like openings approximately parallel to the longitudinal axis of the spore. Fragmentation occurs uniformly over thespore surface, and there is no indication of suprahilar adaxial differentation. Removal of the perisporium with chromic acid reveals a low, verrucose ornamentation. Examination of the spores under the light microscope shows an extremely fine ornament, sometimes scarcely visible even with an oil- immersion objective. Ultrastructurally the ornament is seen as short, trun-
cated verrucae, 0o2-0o5 x 0o2-o06 /F, terete in section, occasionally slightly peltate at the apex. The verrucae tend to remain isolated and there is only rarely any evidence of very low connectives. The low exosporial ornament does not hold out the overlying perisporium quite so far as in other species thus the small hilar appendix is generally visible, even under the light microscope. The hilum is of the open-pore type. Fig. 1/3; pl. 22.
SPECIMEN EXAMINED: Sussex, 16 Sept. I960, Batko.
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