Meliolaceae of Kerala, India - XXXI new species
and a new variety
V.B. Hosagoudar 1 & G.R. Archana 2
1,2Tropical Botanic Garden and
Research Institute, Palode, Thiruvananthapuram, Kerala 695562, India
Email:1 vbhosagoudar@rediffmail.com
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.
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,
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).
Irenopsis kleinhoviae sp. nov.
(Fig. 2)
Material examined
24.iv.2007, on leaves of Kleinhovia hospita L. (Sterculiaceae), Karimancode, Thiruvananthapuram,
Kerala, India, coll. G.R. Archana, HCIO 48166 (type), TBGT 2902 (isotype), (MycoBank #
518399).
Coloniae
amphigenae, subdensae, ad 5mm diam., confluentes. Hyphae subrectae vel undulatae, opposite, alternate acuteque vel laxe ramosae,
laxe vel arte reticulatae, cellulae 16-40 x 4-7 µm. Appressoria alternata, unilateralis, antrorsa, subantrorsa vel retrorsa, recta vel
curvula, 12-23 µm longa; cellulae basilares cylindraceae vel cuneatae, 3-11
µm longae; cellulae apicales globosae,
ovatae, oblongae, integrae vel angularis, 8-14 x 8-11 µm. Phialides appressoriis intermixtae, oppositae vel
alternatae, ampulliformes, 12-24 x 4-8 µm. Perithecia
globosa, dispersa vel aggregata, ad 130µm diam.; setae peritheciales 4-10
numero, simplices, rectae, pallid brunneae, septatae, ad apicem rectae, uncinatae
et obtusae, ad 145 µm longae, parietus glabrus; ascosporae obovoideae, 4-septatae, leniter constrictus
ad septatae, 32-43 x 11-18 µm.
Colonies amphigenous, subdense, up
to 5mm in diameter, confluent. Hyphae substraight to undulate,
branching opposite, alternate at acute to wide angles, loosely to closely
reticulate, cells 16-40 x 4-7 µm. Appressoria alternate, unilateral, antrorse, subantrorse to retrorse,
straight to curved, 12-23 µm long; stalk cells cylindrical to cuneate, 3-11 µm
long; head cells globose, ovate, oblong, entire to angular, 8-14 x 8-11 µm. Phialides mixed with appressoria,
opposite to alternate, ampulliform, 12-24 x 4-8 µm. Perithecia globose, scattered to grouped, up to 130µm in
diameter; perithecial setae 4-10 in number, simple, straight, pale brown,
septate, straight to uncinate at the apical part, obtuse at the tip, up to 145µm
long, smooth; ascospores obovoidal, 4-septate, slightly constricted at the
septa, 32-43 x 11-18 µm.
Irenopsis buettneriicola Deight. known on Buettneria sp.
and Sterculia sphanoghei from Sierra Leone and Java having both straight and
uncinate perithecial setae. However, Irenopsis kleinhoviae differs
from it in having pale brown, smooth walled perithecial setae and shorter
appressoria having entire head cells.
Meliola ebeni sp. nov.
(Fig. 3)
Material examined
10.ix.2006, on leaves of Diospyros ebenum Koenig (Ebenaceae), TBGRI Campus, Thiruvananthapuram,
Kerala, India, coll. G.R. Archana et al. HCIO 48167 (type), TBGT 2903
(isotype), (MycoBank # 518400).
Coloniae
amphigenae, subdensae, ad 2mm diam., confluentes. Hyphae subrectae vel
anfractuae, opposite vel irregulariter acuteque vel laxe ramosae, laxe vel arte
reticulatae, cellulae 12-32 x 4-8 µm. Appressoria opposita, alternata, unilateralis, antrorsa, subantrorsa vel retrorsa,
recta vel curvula, 11-26 µm longa; cellulae basilares cylindraceae vel cuneatae, 3-8 µm longae; cellulae apicales oblongae,
ovatae, cylindraceae, globosae, rectae vel varie curvulae, integrae vel
angularis, 8-18 x 6-15 µm. Phialides appressoriis intermixtae, oppositae vel
alternatae, ampulliformes, 16-24 x 6-8 µm. Setae myceliales simplices,
rectae, ad apicem acutae, ad 490µmlongae. Perithecia dispersa vel aggregata, ad 160µm diam.; ascosporae obovoideae,
4-septatae, leniter constrictus ad septatae, 38-45 x 12-16 µm.
Colonies amphigenous, subdense, up
to 2mm in diameter, confluent. Hyphae substraight to crooked,
branching opposite to irregular at acute to wide angles, loosely to closely
reticulate, cells 12-32 x 4-8 µm. Appressoria opposite, alternate, unilateral,
antrorse, subantrorse to retrorse, straight to curved, 11-26 µm long; stalk
cells cylindrical to cuneate, 3-8 µm long; head cells oblong, ovate,
cylindrical, globose, straight to variously curved, entire to angular, 8-18 x
6-15 µm. Phialides mixed with
appressoria, opposite to alternate, ampulliform, 16-24 x 6-8 µm. Mycelial setae,
simple, straight, acute at the tip, up to 490µm long. Perithecia scattered to grouped, up to 160µm in diameter; ascospores obovoidal,
4-septate, slightly constricted at the septa, 38-45 x 12-16 µm.
Crooked mycelium with variously curved appressoria with
cylindrical to oblong head cells distinguishes this species from rest of the Meliola species
known on the members of the family Ebenaceae (Hansford 1961; Hosagoudar et al.
1997; Hu et al. 1997, 1999; Hosagoudar 2008; Hosagoudar & Agarwal
2008).
Meliola filicii Hosag. var. indica var.
nov.
(Fig.4)
Material examined
20.ii.2007, on leaves of Filicium decipiens (Wight & Arn.) Thw. (Sapindaceae),
Ponmudi, Thiruvananthapuram, Kerala, India, coll. G.R. Archana et al. HCIO
48168 (type), TBGT 2904 (isotype), (MycoBank # 518401).
Differt a var. filicii setae
myceliales ad apicem denatae vel furcatae.
Colonies hypophyllous, dense, up to
2mm in diameter, confluent.Hyphae straight to substraight, branching opposite alternate at acute to wide
angles, loosely to closely reticulate, cells 11-24 x 4-7 µm. Appressoria opposite alternate,
antrorse, subantrorse to retrorse, 8-15 µm long; stalk cells cylindrical to
cuneate, 2-6 µm long; head cells ovate, globose, entire to angular, straight to
curved, 6-11 x 6-8 µm. Phialides
few, mixed with appressoria, opposite to alternate, ampulliform, 9-16 x 4-7 µm. Mycelial setae
simple, straight, acute, dentate to furcate at the tip, up to 350µm long. Perithecia scattered to grouped, up to 196µm in diameter; ascospores obovoidal,
4-septate, slightly constricted at the septa, 25-37 x 8-13 µm.
The new variety differs from the
variety filicii in having only dentate to furcate apical tip of the
mycelial setae (Hosagoudar 1996).
References
Hansford,
C.G. (1961). The Meliolaceae. A Monograph. Sydowia Beih 2: 1-806.
Hosagoudar, V.B. (1996). Meliolales
of India. Botanical Survey of India, Calcutta, 363pp.
Hosagoudar,
V.B., T.K. Abraham & P. Pushpangadan (1997). The Meliolineae - A Supplement. Tropical Botanic Garden and Research
Institute, Palode, Thiruvananthapuram, Kerala, India, 201pp.
Hosagoudar, V.B. (2008). Meliolales
of India. Vol. II. Botanical Survey of India,
Kolkota.
Hosagoudar, V.B. & D.K. Agarwal (2008). Taxonomic studies of Meliolales. Identification Manual. International Book Distributors,
Dehradun, 263pp.
Hu, Y., Y. Ouyang, S. Bin G. Jiang (1996). Flora Fungorum Sinicorum. Vol. 4. Meliolales (1). Science
Press Beijing, 270pp+IVpls.
Hu, Y., S.
Bin, Y. Ouyang & G. Jiang (1999). Flora Fungorum Sinicorum. Vol. 11. Meliolales (2). Science Press Beijing, 252pp.