A new species and four new records of Bacidia (Lecanorales, Ramalinaceae) from South Korea, with a key to Korean species Author Lee, Beeyoung Gun https://orcid.org/0000-0002-5626-852X Baekdudaegan National Arboretum, Bonghwa, 36209, Republic of Korea gitanoblue@koagi.or.kr Author Hur, Jae-Seoun https://orcid.org/0000-0001-8547-7075 Korean Lichen Research Institute, Sunchon National University, Suncheon 57922, Republic of Korea text MycoKeys 2022 2022-10-19 93 107 130 http://dx.doi.org/10.3897/mycokeys.93.89283 journal article http://dx.doi.org/10.3897/mycokeys.93.89283 1314-4049-93-107 496770EB8D855C33A293322A1B32D1CA

Table 3. Comparison of the new species with close species in the genus Bacidia.

Species	Bacidia fuscopallida	Bacidia diffracta	Bacidia hostheleoides	Bacidia polychroa	Bacidia purpurans
The morphological and chemical characteristics of several species close to the new species are referenced from the previous literature. All information on the new species is produced from type specimens (KBA-L-0001010, KBA-L-0001011 and KBA-L-0001049) in this study.
Thallus growth form	warted, rarely granular	finely granular	wrinkled or granular to subsquamulose	finely wrinkled to warted, sometimes areolate	areolate
Thallus colour	olivish-green	pale grey, green-grey, yellow-grey to grey	pale grey to pale green-grey	white to grey or yellow-grey	pale grey-green to dark green
Prothallus	white-grey around margin, endosubstratal	white-pale grey between granules, endosubstratal	absent	-	white, arachnoid
Apothecia (mm in diam.)	0.1-0.7	0.5-1.1	0.5-0.8	0.4-1.2	-
Disc colour	pale yellow to pale orange (young); more blackish (old)	brown-orange to dark brown	brown-orange	brown-orange to dark brown	dark purple-brown to brown
Pruina	absent	white	absent	white	absent
Crystals in proper exciple	absent	radiating clusters of minute crystals	absent	with or without radiating clusters of minute crystals	absent
Crystals in hymenium	small crystals at bottom	-	-	-	absent
Epihymenium colour	colourless with pale yellow-brown pigment	colourless with pale orange-brown pigment	very pale orange	colourless with brown-orange pigment	greyish
Hymenium height (μm)	70-100	70-100	ca. 60	55-100	ca. 100
Hypothecium colour	pale orange-brown to brown	pale brown to orange-brown	very pale orange	brown-orange to dark brown	orange-brown
Hypothecium height (μm)	70-130	-	-	-	ca. 60
Ascospore (μm)	24-69 x 2-3.5	32-69 x 1.9-4.1	16-25 x 2.9-5	31-74 x 1.9-5	50-75 x 2-4
Ascospore L/W ratio	4-31	9-27	4-9	7-30	-
Ascospore septation	3-15	3-11	3-5	2-15	3-15
Pycnidia (μm)	55-75	150	50-100	100-170	150-200
Pycnoconidia	6-17 x 0.3-0.5	10-15 x 0.5-0.6	①10-14 x 0.5 ②6-9 x 1.6-2	10-17 x 0.6-0.8	20-25 x 0.8
Substance	absent	atranorin, (trace of zeorin)	absent	(trace of atranorin)	atranorin
Reference	this study	Ekman (1996)	Ekman (1996)	Ekman (1996); Smith et al. (2009)	Lendemer et al. (2016)