Table 2. The basic characteristics of the chloroplast genomes of three Bulbophyllum species.

	B. pilopetalum	B. pingnanense	B. albociliatum
genome size (bp)	151,148	151,224	151,046
LSC length (bp)	86,138	86,017	85,956
SSC length (bp)	13,300	13,441	13,384
IR length (bp)	25,833	25,855	25,853
Number of genes	109	109	109
Protein-coding genes	75	75	75
tRNA genes	30	30	30
rRNA genes	4	4	4
GC content (%)	36.9	37	37
GC content in LSC (%)	34.4	34.4	34.5
GC content in SSC (%)	29.1	29.2	29.2
GC content in IR (%)	43.2	43.2	43.2
GC content in Protein-coding (%)	37.9	37.9	37.8
GC content in tRNA (%)	52.8	53	53
GC content in rRNA IR (%)	54.9	54.9	54.9