+
+
+No
+ |
+
+Characters
+ |
+
+
+G. bambu
+
+ |
+
+
+G. abscondita
+
+ |
+
+
+G. crispa
+
+ |
+
+
+
+(
+Smith 1903: 103
+)
+ |
+
+(
+Smith 1921: 248
+; personal
+ |
+
+
+observation) |
+
+
+1 |
+Flower size |
+
+17
+–
+20 × 14
+–
+16 mm
+ |
+13 × 11 mm |
+
+18
+–
+21 × 9
+–
+13 mm
+ |
+
+
+2 |
+Flower color |
+Dark brown |
+Pale gray |
+Greenish brown |
+
+
+3 |
+Perianth tube length |
+
+17
+–
+20 mm
+ |
+13 mm |
+
+18.5
+–
+21 mm
+ |
+
+
+4 |
+Petals shape |
+Ovate |
+Oblong |
+Quadragular-ovate |
+
+
+5 |
+Lip length |
+
+10
+–
+12 mm
+ |
+6 mm |
+
+7
+–
+7.6 mm
+ |
+
+
+Lip color |
+Orange at base, whitish-brown in |
+Green with orange at the apex |
+White suffused pale |
+
+
+middle, tinged orange at apex |
+yellowish green near apex |
+
+
+6 |
+Lip shape |
+Oblong-lanceolate |
+Sub-sagittate |
+Ovate |
+
+
+7 |
+Column length |
+
+10
+–
+12 mm
+ |
+5.5 mm |
+
+6.5
+–
+7 mm
+ |
+
+
+Column color |
+Greenish brown, apical half |
+Sepia brown at base and pale |
+Greenish at base and white at |
+
+
+suffused white-orange |
+gray brown near apex |
+apical half |
+
+
+8 |
+Stelidia |
+Very small, tooth-like |
+Large-triangular |
+Small-triangular |
+
+
+