Page 142 - 《广西植物》2020年第2期
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2 期 贾泽峰等: 中国地衣新记录属———裂孔衣属 2 7 9
Aꎬ B. Thallus (Scales = 1 mm)ꎻ C. Asci with ascospores (Scale = 50 μm)ꎻ Dꎬ E. Asci with ascospores (Scale = 20 μm).
Fig. 1 Schizotrema guadeloupense (specimen: Z. F. Jia 11-488).
ellipsoid to fusiformꎬ with rounded to subacute endsꎬ hya ̄ was previously reported from the Antilles (Guadeloupe)ꎬ
line to brownish at late maturityꎬ non ̄amyloidꎬ 40 - 70 Argentinaꎬ Australia ( including Tasmania)ꎬ and New
μm × 15-20 μmꎬ locules rounded to angularꎻ ascospore Zealand (Mangold et al.ꎬ 2009ꎻ Lumbsch et al.ꎬ 2010)ꎬ
wall thinꎬ non ̄halonateꎬ I-. and is new to China and to both continental and tropical
Chemistry: Stictic acid (major) and constictic acid Asia.
(minor). Specimens examined: China. Yunnan Gejiu Cityꎬ
Notes: Schizotrema guadeloupense is similar to Manhao Townꎬ Malongdiꎬ 1 280 mꎬ 23 November 2011ꎬ
S. schizolomum (Müll. Arg.) Mangold & Lumbschꎬ but Z. F. Jia 11 ̄488ꎬ 11 ̄493 (LCU).
the latter species has larger ascospores (60-180 μm × Notes on other five species of Schizotrema in
20-40 μm) and produces salazinic acid. S. cryptotrema the world
(Nyl.) Rivas Plata & Mangold is also somewhat similarꎬ Schizotrema cryptotrema ( Nyl.) Rivas Plata &
but differs in the rather cryptic ascomata and the psoromic Mangoldꎬ in Rivas Plataꎬ Lückingꎬ Sipmanꎬ Mangoldꎬ
acid chemistry. Kalb & Lumbschꎬ Lichenologist 42 (2): 184 (2010).
Ecology and Distribution: In Chinaꎬ the species —Thelotrema cryptotrema Nyl.ꎬ Annls Sci. Nat.ꎬ Bot.ꎬ
grows on barkꎬ known from tropical primeval forest of sér. 57: 319 (1867).
Mountain Daweishan in Yunnan Provinceꎬ Southwest Schizotrema cryptotrema is characterized by ascomata
China. Associated lichens include species of Graphis. It morphological crypticꎬ with indistinctly layeredꎻ