Vamsapriya yunnana, a new species of Vamsapriya (Xylariaceae, Xylariales) associated with bamboo from Yunnan, China Author Jiang, Hong-Bo Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China & World Agroforestry Centre, East and Central Asia, 132 Lanhei Road, Kunming 650201, P. R. China & Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand & School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand Author Phookamsak, Rungtiwa Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China & World Agroforestry Centre, East and Central Asia, 132 Lanhei Road, Kunming 650201, P. R. China & Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand & Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand Author Bhat, Darbhe J. Formerly, Department of Botany, Goa University, Goa, India & No. 128 / 1 - J, Azad Housing Society, Curca, P. O. Goa Velha 403108, India Author Khan, Sehroon Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China & World Agroforestry Centre, East and Central Asia, 132 Lanhei Road, Kunming 650201, P. R. China Author Bahkali, Ali H. Author Elgorban, Abdallah M. Author Hyde, Kevin D. Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China & World Agroforestry Centre, East and Central Asia, 132 Lanhei Road, Kunming 650201, P. R. China & Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand & School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand text Phytotaxa 2018 2018-06-13 356 1 61 70 http://dx.doi.org/10.11646/phytotaxa.356.1.5 journal article 302407 10.11646/phytotaxa.356.1.5 577674cd-47b8-45a6-ba1e-a90bd1147acc 1179-3163 13706046 Vamsapriya yunnana H.B. Jiang, Phookamsak & K.D. Hyde , sp. nov . Index Fungorum number: IF 554232; Facesoffungi number: FoF 04085; FIG. 2 Etymology:—Named after the Province “ Yunnan ”, China , from where this fungus was collected. Holotype : HKAS 101752 Saprobic on dead bamboo culms. Sexual morph : Undetermined. Asexual morph : Hyphomycetous. Mycelium immersed in the substrate, composed of septate, branched, brown hyphae. Conidiophores macronematous, synnematous, dark brown, cylindrical, septate, branched at the apex, smooth-walled. Synnemata 0.7–1.1 mm long, with apical fertile part 60–80 μm wide, middle part 40–55 μm wide, basal part 65–80 μm wide, superficial, solitary, scattered at random, erect, rigid, dark brown to black, composed of compactly arranged conidiophores. Conidiogenous cells 6.7–9.3 × 3.8– 4.8 μm ( x = 8 × 4.3 μm, n = 20), monotretic, enteroblastic, integrated or discrete, cylindrical to subglobose, apically rounded, brown to dark brown, smooth-walled, Conidia 50–70 × 9–11 μm ( x = 61 × 10 μm, n = 20), fusiform, broad at middle, straight to curved, brown, obtuse at base, rostrate at tip, septate, smooth-walled; body part 30–38 × 8–10 μm ( x = 35 × 9 μm, n = 20), initially 1–3-septate, up to 4–5-septate at maturity; apical rostrate part 15–30 μm long, 0–3-septate. FIGURE 1. RAxML tree based on a combined ITS, LSU and RPB2 sequence dataset. The tree is rooted to Cainia anthoxanthis (MFLUCC 15–0539) and C. graminis (MFLUCC 15–0540). Bootstrap support values for ML (left) equal to or greater than 70% and the values of the BYPP) (right), equal to or higher than 0.95 are indicated above the nodes. Ex-type strains are in bold and the newly generated sequence is indicated in red bold. Culture characteristics :—Conidia germinating on PDA within 24 hours at 20–25ºC, with germ tubes produced from one end. Colonies on PDA fast growing, reaching 5 cm after one month at 20–25ºC; white, circular, after one week, cottony and pinkish after one month. Mycelium superficial to immersed in media, with dark brown, branched, septate, smooth hyphae. Material examined :— China , Yunnan Province , Honghe Prefecture , Pingbian County , near Tuanpo Reservoir , on dead bamboo culms, 20 September 2017 , HB. Jiang , Pb 006 ( HKAS 101752 , holotype ! ) ; ibid . ( MFLU 17–1554 , isotype ! ), ex-type living culture, MFLUCC 18–0468 , KUMCC 18–0008 . Notes :— Vamsapriya yunnana is similar to V. khunkonensis ( Dai et al. 2014 ) in having brown to dark brown, up to 5-septate conidia at maturity. Vamsapriya yunnana has 0–3-septate conidia with a 15–30 μm long apical appendage-like and wider apical fertile region ( V. yunnana : 60–80 μm vs. 20–35 μm: V. khunkonensis ). In addition, V. yunnana forms a distinct lineage, separated from V. khunkonensis in a phylogram of Vamsapriya species with strong support. Therefore, V. yunnana is introduced as a novel species.