Polyblastidium hypoleucum (Ach.) Kalb, 2015
publication ID |
https://doi.org/ 10.11646/phytotaxa.235.1.1 |
persistent identifier |
https://treatment.plazi.org/id/03EF7631-FFD6-6A48-FF58-4CE4FCD8FC6C |
treatment provided by |
Felipe |
scientific name |
Polyblastidium hypoleucum (Ach.) Kalb |
status |
comb. nov. |
5. Polyblastidium hypoleucum (Ach.) Kalb View in CoL , comb. nov. ( Fig. 10F View FIGURE 10 )
Mycobank MB 813843
Basionym: Parmelia speciosa b. hypoleuca Ach., Syn. Lich. View in CoL : 211 (1814). Type:— U.S.A. Pennsylvania, 29 November 1805, Muhlenberg (lectotype, selected by Moberg & Nash 1999: 5, H) [for collection locality and date, see Lendemer & Hewitt 2002: 187]; Anaptychia hypoleuca (Ach.) A. Massal., Atti Soc. Ital. Sci. Nat. View in CoL 11:615 (1869); Heterodermia hypoleuca (Ach.) Trevis., Atti Soc. Ital. Sci. Nat. View in CoL 11: 615 (1869).
Thallus foliose, rarely orbicular, usually irregularly spreading, loosely adnate, to 9 cm wide. Lobes 0.3–1.0 mm wide, to ca. 1.5–2.5 mm wide at the tips, plane to weakly convex or weakly concave, sublinear-elongate, irregularly branched, radiating; apices not ascending, usually discrete, ± lobulate along the lobe margins, the lobules ± rounded, 0.1–0.2 mm wide, eciliate. Upper surface whitish to pale gray, without soralia, isidia or phyllidia. Medulla white. Lower surface ecorticate, ± compact, white to beige in the centre; yellow pigments absent. Marginal rhizines totally black or grayish at the base, simple or squarrosely branched, 1–3 mm long. Apothecia common, laminal, substipitate, 1–7 mm wide; margin crenulate to lobulate, the lobules ecorticate on the lower surface; disc concave, dark brown to brown-black, ± thinly gray pruinose. Ascospores Polyblastidia - type, ellipsoidal, mostly without polyblastidia, albeit in some specimens, almost one third of the spores are with polyblastidia, 23–33 × 12–17 µm. Pycnidia not seen.
42 • Phytotaxa 235 (1) © 2015 Magnolia Press
MONGKOLSUK ET AL.
Chemistry: Cortex K+ yellow, C–, KC–, P+ yellow; medulla K+ yellow, C–, P–; containing atranorin (major), zeorin (major), japonene (major).
Nomenclature notes: — Some authors, e.g. Kurokawa (1962: 42) quote Parmelia hypoleuca Muhl., Cat. Pl. Amer. Sept. 1813:105 as basionym. But the genus Parmelia is outlined on p. 102 and no Parmelia hypoleuca is mentioned there.
Distribution and habitat:—Occurs on bark of trees ( Betula alnoides and Acer pseudoplatanus are reported) in lower montane scrub, in lower montane rainforest and in hill evergreen forest in northern Thailand from 1185 to 1340 m above sea level; also recorded from North, Central and South America, Africa and Asia, e.g. Japan and China.
Remarks:— The species is characterized by ± radiating lobe apices, with a whitish lower surface lacking lower cortex, the absence of vegetative propagules, ± small ascospores mostly without sporoblastidia and the lack of depsidones. Polyblastidium magellanicum is very similar, but is readily distinguished by larger ascospores invariably with polyblastidia.
Material from Thailand examined: — Loei: Phuluang Wildlife Sanctuary, trail to Pa Kob Lon Tae forest protection, in lower montane scrub, on bark of unidentified tree, 1245 m, 17°11'32'' N, 101°33'43'' E 17°16'39'' N, 101°31'38'' E, 28 August 2008, S GoogleMaps . Meesim & K . Buaruang, RU-MSPL 710, ( RAMK 21156 About RAMK ); Loei: Phuluang Wildlife Sanctuary, Forest protection unit, area of Lon Tae , in lower montane scrub, on Acer pseudoplatanu , 1260 m, 17°14'18'' N, 101°33'19'' E, 12 November 2009, S GoogleMaps . Meesim & K . Buaruang, RU-MSPL 565, , ( RAMK 21122 About RAMK ); Phitsanulok: Phu Hin Rong Kla National Park, area of Kang Han Nam water fall, in lower montane rain forest, on bark of unidentified tree, 1185 m, 16°59'31'' N, 100°00'44'' E, 4 June 2003, T GoogleMaps . Dia, RU-TD 25, ( RAMK 21585 About RAMK ); Kamphaeng Phet: Maewong, along trail Chong Yen , in hill evergreen forest, on Betula alnoides , 1340 m, 16°06'03'' N, 99°06'27'' E, 2 May 2006, S GoogleMaps . Meesim RU-MW 16, ( RAMK 21734 About RAMK ); Nakon Ratchasima: Khao Yai National Park , along the trail Pha Deaw Dai , in hill evergreen forest, on bark of unidentified tree, 1280 m, 14°22'28'' N, 101°23'04'' E, 10 January 1999, R GoogleMaps . Noicharoen RU-16065, ( RAMK 5559 About RAMK ) .
S |
Department of Botany, Swedish Museum of Natural History |
K |
Royal Botanic Gardens |
T |
Tavera, Department of Geology and Geophysics |
R |
Departamento de Geologia, Universidad de Chile |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Polyblastidium hypoleucum (Ach.) Kalb
Mongkolsuk, Pachara, Meesim, Sanya, Poengsungnoen, Vasun, Buaruang, Kawinnat, Schumm, Felix & Kalb, Klaus 2015 |
Anaptychia hypoleuca (Ach.) A. Massal., Atti Soc. Ital. Sci. Nat.
A. Massal. 1869: 615 |
Heterodermia hypoleuca (Ach.) Trevis., Atti Soc. Ital. Sci. Nat.
Trevis. 1869: 615 |
hypoleuca
Ach. 1814: 211 |