KAEMPFERIA JENJITTIKULIAE (KAEMPFERIA SUBG. PROTANTHIUM: ZINGIBERACEAE), A NEW, ENDANGERED SPECIES ENDEMIC TO THAILAND Author Nopporncharoenkul, Nattapon Author Somnoo, Thunchanok Author Tanming, Wattana Author Maknoi, Charun text Edinburgh Journal of Botany 2021 2021-03-19 78 350 1 13 http://dx.doi.org/10.24823/ejb.2021.350 journal article 286818 10.24823/EJB.2021.350 e3a27aa3-0681-42b5-b19d-bd786eb7a21a 1747-0036 10572730

Table. Diagnostic characters of Kaempferia jenjittikuliae and closely related taxa

Character	K. jenjittikuliae	K. lopburiensis	K. rotunda	K. udonensi s
Leafy shoot	Adpressed to the	Adpressed to the	Upright leaves,	Adpressed to the
	ground	ground	13–60(–78) cm tall	ground
Leaf sheath	Conspicuously	Smooth, hairy	Smooth, usually hairy	Smooth, hairy
	longitudinally ridged,
	hairy
Leaf shape	Broadly ovate to	Suborbicular to	Lanceolate-oblong to	Broadly ovate to
	suborbicular, 18–46 ×	orbicular, 19–40 ×	elliptic, 16–48(–60) ×	suborbicular, 19–48 ×
	16–40 cm	18–38 cm	5–20 cm	18–40 cm
Floral plane	Perpendicular to the	Parallel to the ground:	Perpendicular to the	Parallel to the ground:
	ground: staminodes	lateral staminodes	ground: staminodes	lateral staminodes and
	upright to slightly	and labellum	upright to slightly	labellum horizontal, in
	arcuate and labellum	horizontal, in one	arcuate and labellum	one plane
	deflexed distal half	plane	deflexed distal half
Labellum	Flat	Involute, enclosing the	Flat	Involute, enclosing the
base		anther		anther
Incision	Around half of	More than two-thirds	Around half of	More than two-thirds
	labellum length	of labellum length	labellum length	of labellum length
Anther crest	Ovate, broadly elliptic	Broadly ovate, obovate	Oblong to ovate	Broadly ovate, obovate
shape	to obdeltoid	to obdeltoid		to obdeltoid
Anther crest	Irregular trilobed	Crenate, irregular	Bifid to bilobed,	Crenate to undulate
apex	(middle lobe wider	trilobed to deeply	usually with 1–3 small
	than side lobes) to	multilobed-crenate	teeth between lobes
	tetralobed