Halodiatrype avicenniae Dayarathne & K. D. Hyde
Creators: name: Dayarathne, Monika C.
name: Wanasinghe, Dhanushka N.
name: Devadatha, B.
name: Abeywickrama, Pranami
name: G, E. B.
name: Jones, areth
name: Chomnunti, Putarak
name: Sarma, V. V.
name: Hyde, Kevin D.
name: Lumyong, Saisamorn
name: C., Eric H.
name: Mckenzie
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Fungi
Ascomycota
Sordariomycetes
Xylariales
Diatrypaceae
Halodiatrype
Halodiatrype avicenniae

description: Halodiatrype avicenniae Dayarathne & K.D.Hyde   (Fig. 15)  
 Mycosphere 7 (5): 612-627 (2016).   
CULTURE CHARACTERISTICS. — Colonies on PDA reaching 8 cm diam., after two weeks at 20-25°C, medium dense, irregular, slightly raised, surface smooth with undulate edge, cottony, colony from above white at the margin, yellowish white at the centre; from below yellowish white at the margin, yellow to pale brown at the centre; mycelium greenish grey, no pigmentation on PDA media. Conidiomata forming on culture media, concentrated at colony margin, appearing as black, slimy bubbles with conidial mass.  
 MATERIAL EXAMINED. — Thailand. Phetchaburi Province, Hat Chao Samran, 47°43’30.216”E, 40°15’1.368”N 0 m a.s.l., on intertidal decayed wood of Avicennia sp. at a mangrove stand, 28.VIII.2015, M. Dayarathne, CHAM020 (holo-, MFLU 16- 1185), ex-type living culture, MFLUCC15-0953, ICMP 21767; CHAM010 (MFLU 16-1176), ex-type living culture, MFLUCC 15-0948. — Krabi province, Tha pom Khlong Nam, 08°12’50.4”N, 98°46’42.7”E, 0 m a.s.l., on intertidal decayed wood of Avicennia sp. at a mangrove stand, 16.XII.2015, M. Dayarathne, KLA002 (MFLU 16- 1196), ex-type living culture, MFLUCC 16-0532; KLA003 (MFLU 16-1197), ex-type living culture, MFLUCC 16- 0533. — Ranong province, Amphoe Maung, Mu 4 Tambol Ngao, Ranong Mangrove Research Center, 9°43’- 9°57’N, 98°29’- 98°39’E, 0 m a.s.l., on intertidal decayed wood of Bruguiera cylindrica at a mangrove stand, 6.XII.2016, M. Dayarathne, MCD037 (MFLU 18-0150), ex-type living culture, MFLUCC 17-0396, ICMP 21765.   
DISTRIBUTION. — Thailand.  DESCRIPTION   Sexual morph   
 See Dayarathne et al. (2016).    Asexual morph   
(On PDA after 60 days at 25°C) libertella-like, in back conidial drops.  
 Conidia. Falcate, 26-38 × 1-2 µm (ẍ = 32 × 1.5 µm, n = 30), hyaline, 1-celled, smooth, upper end subacute, base truncate, curved to nearly semicircular.   NOTES  
 Halodiatrype avicenniae is morphologically distinguishable from H. salinicola by having aseptate, larger ascospores (45- 52 × 10-14 µm vs 7.5-8.5 × 2.5-3 µm), which are hyaline to light brown. Halodiatrype avicenniae is similar to H. mangrovei in its ascomata, asci, ascospore shape and colour (Hyde 1993), but H. mangrovei has 1-4-septate ascospores, while they are aseptate in H. avicenniae. Unfortunately, there are no molecular data to compare the phylogenetic affinities of these two species. This study amends the species description by describing asexual morph characteristics of H. avicenniae. This study also reports Bruguiera cylindrica as a new host for this species.
description: Published as part of Dayarathne, Monika C., Wanasinghe, Dhanushka N., Devadatha, B., Abeywickrama, Pranami, G, E. B., Jones, areth, Chomnunti, Putarak, Sarma, V. V., Hyde, Kevin D., Lumyong, Saisamorn, C., Eric H. & Mckenzie, 2020, Modern taxonomic approaches to identifying diatrypaceous fungi from marine habitats, with a novel genus Halocryptovalsa Dayarathne & K. D. Hyde, gen. nov., pp. 21-67 in Cryptogamie, Mycologie 20 (3) on page 54, DOI: 10.5252/cryptogamie-mycologie2020v41a3, http://zenodo.org/record/7815042