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Author: search.filters.author.Kalb, Jutarat

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    New lichen species from Thailand, new combinations and new additions to the Thai lichen biota
    (2017-12-19)
    Kalb, Jutarat
    ;
    Kalb, Klaus
    Several collecting trips by the authors (alone or together) over the last ten years in twenty-one provinces of Thailand afforded new additions to the most recent Thai lichen checklist. These are from seven families with an emphasis on the Graphidaceae reflecting the current interest of the authors. Two species are described as new to science: Platygramme subcolubrosa which differs from P. colubrosa in having non-pruinose labia and discs and smaller, less-septate ascospores and Ramonia minima, which differs from R. kandleri in having smaller ascomata, a lower hymenium and a partly brown to blackish exciple. Constrictolumina leucostoma is a new finding for the Palaeotropics and the genera Pseudotopeliopsis, Ramonia and Sclerophyton are new reports for Thailand. New records of Thai species of Hemithecium are transferred to Allographa and Graphis. This necessitated the following new combinations: Allographa stictilabiata (≡ Graphina stictilabiata), Graphis aphaneomicrospora (≡ Hemithecium aphaneomicrosporum), G. balaghatensis (≡ Hemithecium balaghatense) and Graphis indica (a new name for Hemithecium norsticticum). A further new combination includes Traponora varians (≡ Lecidea varians). Acanthothecis consocians, Caloplaca bassiae, Chapsa pulchra, Leucodecton occultum, Phaeographopsis palaeotropica, Platygramme australiensis, P. commutabilis, P. discurrens, Sclerophyton seriale, Psudotopeliopsis longisporum, Traponora macrospora and Trinathotrema stictideum are further new additions to the Thai lichen biota. Working keys are presented to all known species of Phaeographopsis and Trinathotrema and to the Thai species of Platygramme.
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    A new checklist of lichenized fungi occurring in Thailand
    (2017-06-09)
    Buaruang, Kawinnat
    ;
    Boonpragob, Kansri
    ;
    Mongkolsuk, Pachara
    ;
    Sangvichien, Ek
    ;
    Vongshewarat, Kajohnsak
    A new revised checklist of lichenized fungi in Thailand is presented, including 1,292 species. Recent work on the taxonomy of these organisms in Thailand resulted in an enormous increase in our knowledge of the lichen biota of the country - the current checklist includes more than twice as many species as the previous catalogue published 15 years ago - and phylogenetic studies resulted in numerous changes in the generic classification of lichenized fungi. Hence, a new checklist is here presented summarizing the current knowledge of lichens in Thailand. Six new records are reported, viz. Acanthothecis salazinica, Bactrospora metabola, Buellia parastata, Diploschistes cinereocaesius, Rolfidium coccocarpioides, and Trapelia placodioides. Five previously recorded species, namely Lecanora carpinea, Platismatia glauca, P. lacunosa, P. tuckermanii and Roccella phycopsis are shown to be based on misidentifications and are excluded from the checklist. Three new combinations of species previously placed in Pertusaria to Lepra are proposed: L. bulolensis (A.W.Archer, Elix & Streimann) Schmitt & Lumbsch, L. patellifera (A.W.Archer) Schmitt & Lumbsch, and L. subventosa (Malme) Schmitt & Lumbsch.
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    New Coenogonium species (Ostropales: Coenogoniaceae) from Thailand, new reports and a revised key to the species occurring in the country
    (2016-11-04)
    Kalb, Jutarat
    ;
    Boonpragob, Kansri
    ;
    Kalb, Klaus
    A revision of 159 Coenogonium collections from Thailand preserved in RAMK, herb. K. Kalb and herb. K. & J. Kalb is presented. 18 species (including 1 doubtful) could be delimited, three of which are described as new to science, namely C. convexum which differs from the similar C. nepalense by smaller and convex apothecia already at a very early stage of development, C. subborinquense which has larger apothecia (almost double the size) than the similar C. borinquense and C. verrucimarginatum which differs from C. coronatum by having denticulate-verrucose margins of the apothecia. Coenogonium barbatum, C. epiphyllum, C. frederici, C. leprieurii and C. queenslandicum are new additions to the Thai lichen biota. C. disciforme is synonymized with C. isidiiferum. The peculiar vegetative propagules in this species, hitherto named isidia, are described as thallodiscs. Photographs showing the habitus of the species as well as characteristic structures are given and a dichotomous key for the identification of all species is provided.
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    ‘Missing links’ alive? Novel taxa represent morphological transitions between distinctive phenotypes among extant Graphidaceae (lichenized Ascomycota: Ostropales)
    (2016-07-20)
    Kalb, Jutarat
    ;
    Polyiam, Wetchasart
    ;
    Plata, Eimy Rivas
    ;
    Bawingan, Paulina A.
    ;
    Kalb, Klaus
    We provide an updated account on the species of the Cruentotrema-Dyplolabia clade in Graphidaceae subfamily Fissurinoideae, describing three new species: Cruentotrema lirelliforme J. Kalb, Polyiam & K. Kalb, differing from Cruentotrema thailandicum in the lirelliform ascomata; Dyplolabia chumphonensis J. Kalb & K. Kalb, differing from Dyplolabia oryzoides by smaller ascospores; and Dyplolabia dalywaiana Rivas Plata, Bawingan & Lücking, differing from other Dyplolabia species in the angular, erumpent asomata with broadly exposed disc and irregular pseudocolumella. In addition, two further species are recognized as new combinations: Cruentotrema puniceum (Müll. Arg.) J. Kalb & K. Kalb (Bas.: Arthothelium puniceum Müll. Arg.; syn.: Thelotrema rhododiscum Homchant. & Coppins) and Dyplolabia ochrocheila (Vain.) Rivas Plata & Lücking (Bas.: Graphis ochrocheila Vain.). Cruentotrema kurandense is reported as new to Thailand. Altogether, 11 species are now recognized in the two genera, six in Cruentotrema and five in Dyplolabia. In view of the disparate morphology of the two genera, the discovery of two of the three new species is highlighted as phenotypically transitional taxa, so-called ‘missing links’, and the phylogeny of this clade is revised.