Asteridiella ixorae, Hosagoudar & Archana, 2010

Hosagoudar, V. B. & Archana, G. R., 2010, Meliolaceae of Kerala, India - XXXI new species and a new variety, Journal of Threatened Taxa 2 (5), pp. 889-891 : 889

Asteridiella ixorae sp. nov.

( Fig. 1)

Material examined

27.ix.2006, on leaves of Ixora sp. (Rubiaceae) , Palode forest area, Thiruvananthapuram, Kerala, India, coll. V. B. Hosagoudar et al. HCIO 48165 (type) TBGT 2901 (isotype), (MycoBank # 518398)

Coloniae amphigenae, subdensae, ad 2mm diam., confluentes.Hyphae rectae vel subrectae,opposite acuteque vel laxe ramosae, laxe vel arte reticulatae, cellulae 12-30 x 4-8 µm. Appressoria alternata, unilateralis, 1% opposita, antrorsa vel subantrorsa, recta, 12-22 µm longa; cellulae basilares cylindraceae vel cuneatae, 3-10 µm longae; cellulae apicales ovatae, oblongae, globosae, integrae vel leniter angularis, 8-13 x 8-11 µm. Phialides appressoriis intermixtae, oppositae vel alternatae, ampulliformes, 12-22 x 6-8 µm. Perithecia dispersa, globosa, ad 145 µm; cellulae peritheciales mammiformes, ad apicem obtusae, ad 10 µm longae; ascosporae obovoideae, 4-septatae, constrictus ad septatae, 35-42 x 12-18 µm.

Colonies amphigenous, subdense, up to 2mm in diameter, confluent. Hyphae straight to substraight,

Date of publication (online): 26 May 2010

Date of publication (print): 26 May 2010

ISSN 0974-7907 (online) | 0974-7893 (print)

Editor: Richard Mibey

Manuscript details:

Ms # o2059

Received 13 September 2008

Final received 10 October 2009

Finally accepted 23 February 2010

Citation: Hosagoudar, V. B.& G. R.Archana (2010). Meliolaceae of Kerala, India - XXXI new species and a new variety. Journal of Threatened Taxa 2(5): 889-891.

Copyright: © V. B. Hosagoudar & G. R.Archana 2010. Creative Commons Attribution 3.0 Unported License. JoTT allows unrestricted use of this article in any medium for non-profit purposes, reproduction and distribution by providing adequate credit to the authors and the source of publication.

Acknowledgement: We thank Dr. S. Ganeshan, Director, Tropical Botanic Garden and Research Institute , Palode , Thiruvananthapuram , Kerala for the facilities. We are grateful to Forest Department , Govt. of Kerala for the forest permission .

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branching opposite at acute to wide

angles, loosely to closely reticulate,

cells 12-30 x 4-8 µm. Appressoria

alternate, unilateral, 1% opposite,

antrorse to subantrorse, straight,

12-22 µm long; stalk cells cylindrical to cuneate, 3-10 µm long; head cells ovate, oblong, globose, entire to slightly angular, 8-13 x 8-11 µm. Phialides mixed with appressoria, opposite to alternate, ampulliform, 12-22 x 6-8 µm. Perithecia scattered, globose, up to 145µm in diameter; perithecial cells mammiform, obtuse at the tip, up to 10µm long; ascospores obovoidal, 4-septate, constricted at the septa, 35-42 x 12-18 µm.

Based on the digital formula 3101.4220, it can be compared with Asteridiella glabra (Berk. & Curt.) Hansf. and Asteridiella uncariicola Hansf. It differs from the former species in having straight and loosely reticulate hyphae and differs from the latter species in having shorter with only entire head cells of the appressoria ( Hansford 1961).