Diatrype platystoma (Schwein.) Berk., Grevillea

Vasilyeva, Larissa & Ma, Haixia, 2014, Diatrypaceous fungi in north-eastern China. 1. Cryptosphaeria and Diatrype, Phytotaxa 186 (5), pp. 261-270 : 266

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https://doi.org/ 10.11646/phytotaxa.186.5.3

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Diatrype platystoma (Schwein.) Berk., Grevillea


Diatrype platystoma (Schwein.) Berk., Grevillea 4: 95. 1876 ( Figs. 10 View FIGURES 9–13 , 19 View FIGURES )

Specimens examined:— CHINA. Heilongjiang Province: Hulin vicinity, Dongfanghong, on dead branches of Betula sp. , 3 September 2003, L. Vasilyeva, VLA P-1504; Jilin Province: Changbai Mountain National Nature Reserve, Huangsongpu area, on dead branches of Corylus sp. and Betula sp. , 27 August 2013, L. Vasilyeva, VLA P-2803, P-2819; Songjiang vicinity, Ailing forest, on dead branches of Carpinus cordata Blume , 24 August 2014, L. Vasilyeva, VLA P-2882.— JAPAN. Tochigi Prefecture: Lake Chizenziko, on Crataegus sp. , 25 June 1999, L. Vasilyeva, VLA P-1512; Asio, on unidentified tree, 28 June 1999, L. Vasilyeva, VLA P-1511).— KOREA. Gyeonggi Province: Paju vicinity, on Malus sp. , 9 June 1999, L. Vasilyeva, VLA P-1511; Gangwon Province: Chiaksan National Park, on Quercus sp. , 9 June 2005, L. Vasilyeva, VLA P-1513.

Stromata usually widely effused, brownish but seemingly black because of closely studded with black and discoid ostiloles, surrounded by a black line within the substrate; perithecia monostichous or distichous, singly erumpent, 150– 200 µm diam., with short ostiolar necks. Asci cylindrical, paraphysate, 20–25 × 4–6 µm in spore bearing part, stalks of different length, containing 8 biseriate ascospores, apical ring indistinguishable. Ascospores one-celled, almost straight and hyaline, very thin, 7–9 × 1–1.3 µm long.

Diatrype platystoma is now commonly referred to as Graphostroma platystoma (Schwein.) Piroz. , although it hardly deserves its own genus. We have already discussed the unfortunate travel of this species through different taxa ( Vasilyeva & Stephenson 2004). It is widely distributed in eastern and south-eastern provinces of China (Anhui, Guangdong, Guangxi, Hebei, Hunan, Zhejiang); Shaanxi, Sichuan and Yunnan Provinces are the western limit of the area known. The general area of distribution is temperate forests of the north-eastern Asia and eastern North America (‘Asa-Gray disjunction’), but, unlike many other members of Diatrype , this species does not display any preference to host plants. In the north-eastern Asia, it is most commonly found on Acer , Betula , Crataegus , Corylus , and Malus .














Diatrype platystoma (Schwein.) Berk., Grevillea

Vasilyeva, Larissa & Ma, Haixia 2014

Diatrype platystoma (Schwein.)

Berk. 1876: 95
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