Asteridiella elaeocarpicola var. gadgilii A. Sabeena & H. Biju, 2022
publication ID |
https://doi.org/ 10.11646/phytotaxa.541.1.5 |
DOI |
https://doi.org/10.5281/zenodo.6379501 |
persistent identifier |
https://treatment.plazi.org/id/0384811E-FB5F-FF90-4296-79A13DF553AE |
treatment provided by |
Plazi |
scientific name |
Asteridiella elaeocarpicola var. gadgilii A. Sabeena & H. Biju |
status |
var. nov. |
Asteridiella elaeocarpicola var. gadgilii A. Sabeena & H. Biju var. nov. ( Figs 3 View FIGURE 3 , 4 View FIGURE 4 )
MycoBank No.: MB 842474
Type:— INDIA. Kerala: Thiruvananthapuram, Ponmudi , on leaves of Elaeocarpus gadgili Maya et al. (Elaeocarpaceae) , 25 August 2021, Sabeena & Biju, 7117 (holotype TBGT!) ; Ponmudi, 9 October 2020, Sabeena & Biju 7118 (paratype TBGT!).
Etymology:— The new taxon is named after its host species.
Colonies epiphyllous, thin to sub-dense, up to 2 mm in diameter, confluent. Hyphae straight to flexuous, branching opposite at acute to wide angles, loosely reticulate, cells 25–40 × 5 μm. Appressoria alternate to opposite, antrorse to subantrorse, straight to curved, 12–17 μm long; stalk cells cylindrical to cuneate, 2.5–5 μm long; head cells globose, oblong, truncate, entire, 10–12 × 7–10 μm. Phialides mixed with appressoria, opposite to unilateral, ampulliform, 12.5– 20 × 5–10 μm. Perithecia scattered, up to 170 μm in diameter; perithecial wall cells prominent, conoid, mammiform, attenuated, straight to curved at the tip, up to 37 μm long; ascospores oblong to ellipsoidal, 4-septate, constricted at the septa, 42–47 × 15–17 μm.
Notes:— Amazonia elaeocarpi Hosag. et al. , Appendiculella elaeocarpi Hosag. & P.J. Robin , Asteridiella elaeocarpi-tuberculati Hosag. , Asteridiella elaeocarpicola Hansf. , Meliola elaeocarpi H.S. Yates and Meliola elaeocarpicola Lini K. Mathew ( Table 2) are the known meliolaceous fungi occurring on the host genus Elaeocarpus ( Hosagoudar 1996, 2008, 2013, Hosagoudar et al. 1997, Hosagoudar & Agarwal 2008, Hansford 1961, Yates 1917, Mathew&Thomas 2020).The new taxon differs from Asteridiella elaeocarpicola in the presence of alternate and opposite appressoria and comparatively smaller ascospores, whereas Asteridiella elaeocarpicola has only alternate appressoria and larger ascospores. The Beeli formula of present taxon is 3103.4222 whereas in Asteridiella elaeocarpicola , it is 3101.6320. The other reported Asteridiella species, A. elaeocarpi-tuberculati clearly shows differentiation in having alternate appressoria and phialides borne on a separate mycelial branch.
TBGT |
Tropical Botanic Garden and Research Institute |
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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