Nervilia Infundibulifolia Blatter & Mccann (Orchidaceae): a new Record from Sikkim Himalaya

2005·1.1 MB·

by  D Maity

MISCELLANEOUS NOTES
0.4-0.5 mm. Caryopsiselliptic-obovate, 1.8-2x0.6-0.8mm. Dr.T.A.Cope,RoyalBotanicalGarden,Kewforconfirmation
Upperfloretreducedtoarudimentary structure. ofidentity;Head,DepartmentofBotany, ShivajiUniversity,
&
FI. Fn:July-October. KolhapurforprovidingfacihtiesandMinistryofEnvironment
Exsiccata:Ajara,Potdar1566. &Forests,NewDelhiforfinancialassistance.
Note: Lepturus radicans was collected by us from
Dandeli forest of Karnataka in June 2003. Recently, it was September10,2003 GGPOTDAR
MAHEKAR
collectedfromforestsaroundAjararegioninKolhapurdistrict P.D.
ofMaharashtra.Itiscommoninshadyplacesalongroadsides DepartmentofBotany,
andforestmargins.Thespikeletistwoflowered,buttheupper ShivajiUniversity,
floretishighlyreducedandrepresentedbyasmallappendage Kolhapur416004,
onprotrudedrachilla. Maharashtra,India.
ACKNOWLEDGEMENTS YADAV
S.R.
DepartmentofBotany,
We thank Dr. S.M. Bhuskute, Bhawbhuti UniversityofDelhi,
Mahavidyalaya, Amagaon for his help during collection; Delhi 110007,India.
REFERENCES
Bor, N.L. (1960): Grasses of Burma Ceylon, India and Pakistan. Moulik, S. (1997); The Grasses and Bamboos ofIndia. Vol. I & II.
Pergamon Press, Oxford. ScientificPublisher,Jodhpur.
25. NERVILIA INFUNDIBULIFOLIA BLATTER & MCCANN (ORCHIDACEAE):
A NEW RECORD EROM SIKKIM HIMALAYA
Nervilia infundibulifolia (Orchidaceae) was first
described by Blatter & McCann from North Canara of
Karnataka, India; based on the specimen from Yellapur,
N.Canara,TR.Bellmss.Icon.E.Bell.
Later, the occurrence of this taxon was known both
fromWesternHimalaya(Garhwal)andEasternHimalaya(only
Arunachal Pradesh) (Deva and Naithani 1986; Chowdhery
1998)leavingNepal,SikkimandBhutan.
The species wasreportedfromBhutan in 2002forthe
firsttimebyPearceandCribb(2002). However,itishitherto
unknown from Nepal and Sikkim. Recently, a collection of
thistaxonfromSikkimHimalaya(betweenYoksumandBakhim,
West Sikkim) was made and is a new record for Sikkim
Himalaya. Thus, it is expected that this species has a
continuous distribution from Western Himalaya to Eastern
Himalaya and extends eastwards to Thailand, Malay and
Borneo (Pearce and Cribb 2002), along with its first record
from the Western Ghats region, Maharashtra and Orissa, in
India. It is possible that the species occurs in Nepal and
Myanmarand alsoYunnan andHupehregionofChina.
A detailed description of the taxon along with the
presentknown distributionalrecordsisgivenbelow.
Nervilia infundibulifolia Blatter & McCann in
J.BombayNat.Hist.Soc.35:725.t.3.1932;Deva&Naithani,
OrchidEl.N.W.Himalaya85.t.83.1986;Chowdhery,Orchid
&
FI. Arunachal Pradesh 529. t.530.1998; Pearce Cribb,
El.Bhutan3(3-OrchidsofBhutan);58.t.59.2002. a.Habitat;b.Lip
368 J. Bombay Nat. Hist. Soc., 102 (3), Sep-Dec 2005
MISCELLANEOUS NOTES
Nervilia hallbergii Blatter & McCann in J. Bombay cm,marginentire;columnstraight.Fruitscylindric.
Nat.Hist.Soc.35:726.1932. Specimenexamined:WestSikkim,YoksumtoBakhim,
N. calcicola KerrinJ. SiamSoc. Nat.Hist. Suppl.9(2): 1800m.May 12,2002,D.Maity&N.Pradhan23403-BSHC
242.t.7.1933. (twogatherings).
Pwteranthous,tuberousherbupto 15 cmtall (scape). Fieldnotes: “Terrestrial,bulbglobose,juicy;sepalsand
Tubersub-globose,0.6-1.5cmdiam.Leavesbroadlyovateto petalsgreenish-brown;lipwhite,tingedwithpinkdots;middle
suborbicular,2-4cmacross,basecordate,marginundulateto lobeflat;laterallobesverysmall.”
crenulate, apex acute to acuminate, glabrous, spreading on Distribution: india: Himalaya: Uttaranchal; Uttar
ground; petioles sheathing at base. Flower solitary, at right Pradesh, Sikkim, Arunachal Pradesh, Orissa, Karnataka,
angle on scape; scape with two intemodes; scape sheaths Maharashtra; Bhutan; Thailand; Malay; Borneo; grows on
two, linear-oblanceolate, 1.5-3 cm long, apex acute to openslopes,loosesoils,alongroadsidesinwarmsubtropical
m
acuminate, clasping, glabrous; floral bract solitary, linear- forests ascending upto 1800 altitude.
lanceolate,0.3-0.7X0.2cm. acuminate. Flowers(sepalsand FI.andFr.:May-July.
petals) light maroon-green to greenish-purple to greenish-
brown;nervesdeep-coloured;lipapple-greentowhite,tinged July 14,2003 D. MAITY
withpink;sepalshnear-oblanceolate, 1.3-1.8x0.2-0.3cm,acute, N. PRADHAN
CHAUHAN
3-nerved;petals linear-oblanceolate, 1.2-1.7 x 0.15-0.2 cm, A.S.
acute, 1-nerved; lip 1.5-2 x 0.2-0.3 cm, distinctly 3-lobed, BotanicalSurveyofIndia,
weakly saccate at base, with 2 hairy lines on hypochile and SikkimHimalayanCircle
one papilose line on epichile; lateral lobes triangular, about Gangtok737 103,
0.1 X0.1 cm;middlelobelarger,obovatetoovate,about 1 x0.3 Sikkim,India.
26. BULBOPHYLLUM REPTANS (LINDL.) LINDL. (ORCHIDACEAE):
A CRITICAL STUDY
Bulbophyllum reptans (Lindl.)Lindl. isknownforits recognizedasaseparateidentity.IntheThaiplant,theflowers
wide distribution from India (Garhwal Himalaya, Sikkim, are yellow, the dorsal sepal with three faint purple lines at
Arunachal Pradesh) to Vietnam including Nepal, Bhutan, base andtheproximaledgesofthe lipbeing purple.
Bangladesh, China, Myanmar and Thailand (Seidenfaden Thus, thetaxon Bulbophyllum reptans (Lindl.) Lindl.
1979).Thistaxonisfurtherenrichedbytwomorevarietiesto is now considered to have two more varieties var.
the typical one as var. subracemosa Hook.f. and var. acuta subracemosa and var. acuta in addition to the typical one,
MalhotraandBalodi. and a proposed unnamed (?) variety (Vietnamese variety)
The variety subracemosa Hook.f. was established by based on the colouration of petals and lips. Of course,
Hooker (1890) based on differentiating characters, like Seidenfaden (1979) didnotrecognize the separate entity of
presence of smaller pseudobulbs; much shorter length of the variety subracemosa Hook.f. In this regard, he had
oblong,obtusefloralbractsthanthelongerpedicellateovary. referred to Bulbophyllum ombrophyllum Gagnep.
This variety was recognized by King and Pantling (1898), Regarding the variety acutaMalhotraand Balodi, the
Srivastava(1996)andChowdhery(1998). distinguishingcharactersuchasthelargerfloralbractsthan
TheothervarietyacutaMalhotraandBalodi(1984)is that of the pedicellate ovary, cannot be considered good
differentiated by longer floral bracts than the pedicellate taxonomic characterstoestablishanew variety.
ovary, based on collection from Gorpatta, Gori Valley, While working on the floristics of Kanchenjunga
Pithoragarh,India(M.A. Rau,35340-CAL). BiosphereReserveofSikkimHimalaya,specimen(D.Maity,
Seidenfaden (1979) had quoted the opinion of 24275-BSHC)wascollectedwiththesmallestpseudobulb(c.
Guillauminregardingthefurthertaxonomictreatmentofthis 7-8X7-8mm),slightlysmallertoequaltoslightlylongerfloral
taxon, that the flower ofthe Langbian plant is yellow with bracts(c. 5.5x2mm)thanthepedicellateovary;sepalswith
smalldarkredspotsattipsofthepetalsanddarkredlipwith distinct characteristic shape as stated by Lindley in 1830
a green median line, which is not quite different from the with prominent three nerves and light yellow colour; the
mm
colourdescriptiongivenbyHookerf.andKingandPantling, spathulate c. 3.5 long petals having brownish- purple
and therefore perhaps a Vietnamese variety should be colouredlip.
J. Bombay Nat. Hist. Soc., 102 (3), Sep-Dec 2005 369