Table 2.

The comparisons of mean (X) and standard deviation (SD) value of the leaf blade and cupule size between L.bidoupensis, L.congtroiensis, and L.hongiaoensis with related species.¹Derived from type specimens, ²Derived from this study collections, n = number of leaf or cupule were measured in this study.

Parameters (cm)	L.bidoupensis 1			L.blaoensis 1,2			L.licentii 1,2
	X	SD	n	X	SD	n	X	SD	n
Leaf blade length	9.74	1.12	23	13.66	1.89	22	10.76	2.01	20
Leaf blade width	4.5	0.59	23	4.41	0.51	22	3.46	0.53	20
Leaf blade aspect ratio	2.17	0.15	23	3.11	0.36	22	3.1	0.31	20
Leaf blade circularity	0.71	0.03	23	0.58	0.05	22	0.55	0.05	20
Petiole length	0.5	0.1	23	1.89	0.23	22	0.81	0.14	20
Cupule high	0.98	0.19	27	0.64	0.06	22	0.88	0.15	16
Cupule diameter	2.47	0.2	27	1.58	0.11	22	2.17	0.13	16
	L.congtroiensis 1			L.dahuoaiensis 1,2			L.honbaensis 1,2
	X	SD	n	X	SD	n	X	SD	n
Leaf blade length	14.83	1.6	22	19.4	3.45	22	20.39	3.44	20
Leaf blade width	5.3	0.84	22	8.06	1.48	22	8.84	1.66	20
Leaf blade aspect ratio	2.86	0.34	22	2.41	0.17	22	2.32	0.16	20
Leaf blade circularity	0.59	0.06	22	0.7	0.04	22	0.69	0.04	20
Petiole length	1.42	0.19	22	1.4	0.14	22	2.11	0.36	20
Cupule high	1.10	0.18	21	1.23	0.14	28	-	-	-
Cupule diameter	2.99	0.28	21	2.24	0.19	28	-	-	-
	L.hongiaoensis 1			L.vinhensis 1,2			L.vuquangensis 1,2
	X	SD	n	X	SD	n	X	SD	n
Leaf blade length	10.81	1.93	29	8.42	2.26	22	7.49	1.32	25
Leaf blade width	3.26	0.6	29	2.97	0.95	22	2.39	0.32	25
Leaf blade aspect ratio	3.33	0.33	29	2.9	0.4	22	3.13	0.33	25
Leaf blade circularity	0.49	0.04	29	0.57	0.07	22	0.5	0.05	25
Petiole length	2.59	0.49	29	0.74	0.12	22	1.3	0.23	25
Cupule high	1.01	0.15	25	0.57	0.05	19	0.86	0.26	18
Cupule diameter	2.06	0.28	25	1.31	0.14	19	1.63	0.18	18