Acanthothecis consocians ( Nylander 1868: 116 ) Staiger & Kalb (2000
publication ID |
https://doi.org/ 10.11646/phytotaxa.332.2.2 |
DOI |
https://doi.org/10.5281/zenodo.13722190 |
persistent identifier |
https://treatment.plazi.org/id/641D87E9-224E-FFD5-2E92-F9BB6C7FFE55 |
treatment provided by |
Felipe |
scientific name |
Acanthothecis consocians ( Nylander 1868: 116 ) Staiger & Kalb (2000 |
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Acanthothecis consocians ( Nylander 1868: 116) Staiger & Kalb (2000 [1999]: 97). ( Fig. 1A View FIGURE 1 )
This species is characterized by its whitish to yellowish thallus, transversely 5–8-septate ascospores, 13–18 × 4–5 μm, I– and especially by its white lirellae containing psoromic acid (major) and 2‘- O -demethylpsoromic acid (minor to trace).
Distribution and habitat:— A. consocians is reported from India, Malesia and here from Thailand where it is growing on the bark of various deciduous trees in ± open but humid situations from 20– 700 m.
Material examined from Thailand:— Chiang Mai province: Doi Suthep-Pui National Park ; trail to Monthathan waterfall in a humid Dipterocarpus forest, 700 m, 18°49’00’’ N, 98°55’28’’ E, 17 March 2008, K. Kalb et al. 37067 (hb. K. Kalb)— Phetchaburi province: Kaeng Krachan district, road from Ban Krang Camp to ‘Stream 1’, in a humid secondary rainforest along a creek, 340 m, 12°48’ N, 99°26’ E, 8 December 2015, J. Sutjaritturakan & K. Kalb 41267 (Hb. K. & J. Kalb)— Chumphon province: Lang Suan district GoogleMaps ; tambon Tha Maphla, in the area of Radburana Temple, in a butterfly tree ( Bauhinia purpurea ) plantation, 20 m, 09°56’24” N, 99°02’26” E, 17 May 2009, J. Sutjaritturakan 2671, 2672 (Hb. K. & J. Kalb) GoogleMaps .
Remarks:—Only one Acanthothecis species, viz. A. salazinica S. Joshi & Hur in Joshi et al. 2013: 600, published on 23 August 2013) is mentioned in Buaruang et al. (2017). This name however is a later homonym of A. salazinica van den Boom & Sipman (2013: 12 , published on 30 June 2013). Subsequently, the error was recently corrected by Joshi et al. (2017: 264) where the illegitimate name was replaced by A. yokdonensis S. Joshi & Hur. The latter species is readily differentiated from A. consocians by the larger and more septate ascospores (27–29-septate, 70–120 × 7–14 μm) and the chemistry (salazinic acid).
Makhija & Adawadkar (2007) questioned the occurrence of psoromic acid in A. consocians . And indeed, it is not present in the thallus, but it is definitely present in the ascomata of this species, including the holotype which we have studied. This substance could be detected with TLC methods as well as with the spot test, P+ yellow.
A. consocians is a new addition to the Thai lichen biota.
K |
Royal Botanic Gardens |
J |
University of the Witwatersrand |
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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Acanthothecis consocians ( Nylander 1868: 116 ) Staiger & Kalb (2000
Kalb, Jutarat & Kalb, Klaus 2017 |
Acanthothecis consocians ( Nylander 1868: 116 )
Staiger, B. & Kalb, K. 2000: 116 |