A new species of the genus Campylandra (Convallariaceae-Convallarieae) from Thailand

4 Pages·2001·1.2 MB·English

by  Yamashita, Jun

BLUMEA 46 (2001) 181-184
A new species of the genus Campylandra
(Convallariaceae-Convallarieae) from Thailand
Jun Yamashita & Minoru+N. Tamura
Botanical Gardens,Graduate School ofScience,OsakaCity University,
2000 Kisaichi, Katano-shi,Osaka576-0004,Japan
Summary
Basedonthespecimens collected fromThailand andpreservedinAAU,BKF,C, andKYO,Campy-
landra siamensis (Convallariaceae,Liliaceae s.l.) is newlydescribed in this paper. Thisspecies is
similartoC.chinensis (Baker)M.N.Tamura,S.YunLiang&Turland,butdiffersfromitin having
numeroussessile leaves,longerwhite bracts, longerperianthtube and largerpistil.
Key words. Campylandrasiamensis, Convallariaceae,Liliaceae s.l., Tupistra,Thailand.
Introduction
Tamura (1991) reported identificationsofthe Liliaceae s.l. in Doi Inthanon,Prov.
Chiang Mai, NorthernRegion, Thailand,based onherbariumspecimens atBKFand
KYO;however,hedidnot identify theplant discussedinthispaperandprovisionally
treated it as Tupistra spec. A. Later, Tamura consideredthat Tupistra species with
anthers positioned higher than or as high as the stigma, a short style and a small
3-lobedstigma shouldbeseparated fromTupistra species withantherslowerthanthe
stigma, along style,andalarge,peltate tofungilliform stigma, andtreatedtheformer
as Campylandra (Conran & Tamura, 1998;Tamura etal., 2000; Liang & Tamura,
2000).Theplant discussedinthispaper(Tupistra spec. A)hasanthershigherthanthe
stigma and a small sessile 3-lobedstigma. Accordingly, in Tamura's more recent
opinion, theplant is identifiednot as Tupistra butas Campylandra.
Theplant issimilartoCampylandra chinensis(Baker) M.N.Tamura,S.YunLiang
& Turland, which is distributedinC andS China andTaiwan, but differs from it in
having numerous sessile leaves, longer white bracts, a longer perianth tubeand a
largerpistil.Accordingly, weconsidertheplantanewspecies andnameitCampylandra
siamensis.
Weexaminedthespecimens preserved inAAU,BKF, C,andKYO,andfoundthe
specimens ofCampylandra siamensiscollectedinProvs. MaeHongSonandChiang
Mai,NorthernRegion; Prov. Loei,NortheasternRegion; Prov.Chaiyaphum, Eastern
Region, allofThailand,andnot from thecountriesotherthan Thailand.As faraswe
know now, Campylandra siamensis isendemic toThailand.The specimens that we
identify as C. siamensisatC were annotatedas Tupistra yunnanensis F.T. Wang &
S.YunLiang by B. Hansen& K. Rahn. However, Campylandra siamensishas long
bractsandlightgreenflowers,and Tupistrayunnanensis shortbractsandwhiteflowers.
Wethinkthatthetwo species are differentfromeachother.
182 BLUMEA Vol. 46, No. 1, 2001
Fig. 1.Campylandra siamensis Yamashita & M.N. Tamura. a.Habit (T. Santisuk 1608,BKF);
b. rhizome androots (M.N. Tamura & J.Yamashita 6033,KYO).
J.Yamashita & M.N.Tamura: A new speciesofCampylandrafrom Thailand 183
Fig. 2.Campylandrasiamensis Yamashita & M.N.Tamura. – a-d. Flowerpositionedin lower
portion ofinflorescence: a.front view;b. sideview; c.longitudinalsection;d.halfofperianth. –
e & f.Flower in side view: e. middleportion ofinflorescence;f.upperportion ofinflorescence.
– g-i.Stamen: g.lateral view;h.adaxial view;i.abaxial view. –j—l. Pistil:j.side view;k.front
view;l.crosssection. – m-o.Bract:m. upperportionofinflorescence;n.middleportionofinflo-
rescence; o.lowerportion ofinflorescence [allfrom OsakaCityUniv. cult. (M.N.Tamura10201)].
Campylandra siamensisYamashita& M.N.Tamura,spec. nov. —Fig. 1, 2
Affine Campylandro chinensi,sed foliis numerioribus sessilibus, bracteis albis longi-
oribus, tubis perianthiorum longioribus, pistillis majoribusa qua diversa. —Typus:
T.Santisuk 1608 (holoBKF),Thailand,N. Prov,ChiangMai,Doi Inthanon,Mae Pan
waterfall, 1100m.
Rhizometerete,c. 1.8cm diam.,±verticallyelongate, densely noded(space 1-2mm).
Roots3-4mmdiam., densely pubescent whenyoung. Stem2-6cm long. Leaves7-
18,distichous, strap-shaped, 45-80cmlong, 2-4.8cmbroad,long acuminateatapex,
marginentirebutsometimesslightly verticallyundulate,sessile,withprominentmidrib.
Inflorescence aterminalspike, 3.7-7.2 cm long, 1-2.3 cm diam., 47-120-flowered,
withseveralsterilebracts atapex;peduncle upto 19cmlong, c.7 mmdiam.Flowers
subglobose tocampanulate, 6.5-9.2mm long, 7.8-10mmdiam.,light green;bracts
linear-lanceolatetofiliform, 12-65mmlong, white,broadenedinlowerpart, minutely
denticulateonuppermargin.Perianthsegments(5 or)6(or 7), fleshy, connate proxi-
mally;tube3.8-6.2mmlong, thickening inward,especially sharplyprotrudingbetween
filamentsalong throat;lobesovateto deltoid,2.7-4.5by 2.5-4mm,incurved.Stamens
(5 or) 6 (or 7); filamentsproximally adnateto perianth tube, free part 1.3-2.3mm
184 BLUMEA Vol. 46, No. 1, 2001
long, incurved, thickening downward,c.0.8 mmdiam.atbase, inflatedabaxially at
apex; anthersovoid, 1.2—1.5mm long, light yellow, introrse, positioned higher than
the stigma. Ovarysubspheroidal, 2.3-3mmlong, 2.7-3.5mmdiam.,3-locular;ovules
2 per locule. Stig/na 0.5-0.7 mmthick, c. 1.5 mm diam.,sessile, 3-lobed,grooved
longitudinally along apex ofeachlobe.Fruita berry, ellipsoidal, 1.1-1.4cm long,
orangeatmaturity.
Distribution— EndemictoThailand(N, NE,andERegions).
Habitat—Evergreen or mixeddeciduousforest. On graniticrocks or sandstone,
oftenby streams.Altitude600-1420m.
Additional specimens examined:
THAILAND:N Prov.Mae HongSon:DoiChong, 1420m (B.Hansen & T.Smitinand 12643,C);
Prov.ChiangMai:KawngSan nearOmkoi (B.Hansen & K.Rahn P.1964/202,C;B.Hansen 12/3
1985,C); Mae Pan waterfall,Doi Inthanon, 1100 m (M.N. Tamura & J. Yamashita 6033,KYO;
M.N.Tamura 10140,KYO);NEProv.Loei: PhuPaek, 1200m (C.F.vanBeusekom & C.Phengklai
2995,AAU,C);EProv. Chaiyaphum: NamPhrom, 600 m (C.F. vanBeusekom et al.4142,c,
KYO).
ACKNOWLEDGEMENTS
We express our sincerethanks tothe directors and staffmembers ofthe herbaria AAU, BKF,C,
and KYO.Thanks arealsodue toMr. MasayoshiUmebayashi forhis drawings.
REFERENCES
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