Nephromopsis pseudocomplicata (Asahina) M. J. Lai
Nomenclatural data
Quart. J. Taiwan Mus. 33: 224, 1980.
Cetraria pseudocomplicata Asahina, J. Jap. Bot. 12: 804, 1936. – Cetraria rhytidocarpa Mont. & Bosch f. nipponensis Asahina, J. Jap. Bot. 24: 228, 1954. – Nephromopsis nipponensis (Asahina) M. J. Lai, Quart. J. Taiwan Mus. 33: 223, 1980.
Morphology
Thallus greenish on upper and white or light brown on lower surface. Lobes rounded, to 7 mm broad, bearing scattered marginal cilia. Pseudocyphellae on lower cortex not numerous; in the form of rounded or irregular white, small, plain patches, often with light brown margins. Rhizines pale, simple, long (to 3 mm).
Apothecia marginal, rounded or reniform, to 6 mm in diam., with reddish-brown disc; exciple 2-layered; ascospores subglobose, 5–6 x 4–5 µm; asci clavate, 30–35 x 12–14 µm; axial body 3.5 µm. Pycnidia numerous, situated on marginal emergent projections; pycnoconidia bifusiform, 5 x 1–1.5 µm.
Chemistry
Usnic acid present or absent in the cortex. Two different chemotypes can be distinguished according to the medullary compounds. First chemotype: alectoronic acid as the major, and a-collatolic acid as a minor compound; lichesterinic- and protolichesterinic-type fatty acids may occur rarely. The second chemotype (formerly N. nipponensis): physodic and conphysodic acids and lichesterinic- and protolichesterinic-type fatty acids. Both chemotypes have similar medullary colour tests: K–, C–, KC+ red, Pd–.
Remarks
Ecology and distribution
Epiphytic. Distributed in Eastern Asia – Russia (island Sakhalin), Japan, Taiwan.
Literature
Randlane, T. & Saag, A. 1992. | Randlane, T. & Saag, A. 1998. |Randlane, T. & Saag, A. 2004. | Randlane, T., Saag, A. & Obermayer, W. 2001. | Randlane, T., Saag, A., Thell, A. & Kärnefelt, I. 1994. | Randlane, T., Thell, A., & Saag, A. 1995. | Thell, A., Randlane, T., Saag, A. & Kärnefelt, I. 2005.
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