Character/Data Set Information   

Interactive key for the genera of Chinese Orchidaceae         Search

1: Habit [Unordered List]

• 1. subshrubby herbs   (3 taxa)
• 2. terrestrial herbs   (79 taxa)
• 3. semi-epiphytic herbs   (6 taxa)
• 4. epiphytic herbs   (75 taxa)
• 5. saprophytic herbs   (21 taxa)
• 6. lithophytic herbs   (1 taxon)
• 7. climbing   (1 taxon)

• 1. retrose or transverse or creeping or ascending   (32 taxa)
• 2. noded   (19 taxa)
• 3. with aerial roots   (3 taxa)
• 4. with fibrous roots   (5 taxa)
• 5. with tufted roots   (12 taxa)
• 6. with fleshy roots   (13 taxa)
• 7. stemlike   (3 taxa)
• 8. cylindrical   (4 taxa)
• 9. decumbent   (1 taxon)
• 10. with proplike roots   (1 taxon)

• 1. absent   (1 taxon)
• 2. present   (28 taxa)
• 3. globose or ellipsoid   (10 taxa)
• 4. ovoid   (2 taxa)
• 5. cylindrical   (1 taxon)
• 6. rhizomelike   (2 taxa)
• 7. elongate
• 8. not lobed   (8 taxa)
• 9. palmately lobed   (2 taxa)
• 10. its neck with roots   (12 taxa)

• 1. branched   (13 taxa)
• 2. unbranched   (17 taxa)
• 3. glabrous   (6 taxa)
• 4. hairy   (3 taxa)
• 5. tufted or separate   (6 taxa)
• 6. sheathing below middle   (17 taxa)
• 7. sheathing above middle   (8 taxa)
• 8. with leaves   (57 taxa)
• 9. without leaf   (17 taxa)
• 10. noded   (32 taxa)
• 11. not noded
• 12. leafy   (7 taxa)
• 13. with pseudobulb   (4 taxa)
• 14. with scalelike sheath or roots   (24 taxa)

• 1. bulblike   (1 taxon)
• 2. articulate   (1 taxon)
• 3. with roots   (6 taxa)
• 4. corm-shaped or subtuberous or tubular   (6 taxa)
• 5. noded   (8 taxa)
• 6. ovoid or elliptic or spindle-shaped or ovate or conical   (13 taxa)
• 7. with leaves   (14 taxa)
• 8. with internode   (5 taxa)
• 9. with sheath   (12 taxa)
• 10. with ridge   (1 taxon)

• 1. 1   (40 taxa)
• 2. 2   (21 taxa)
• 3. several to many   (13 taxa)
• 4. conduplicate   (6 taxa)
• 5. plicate or plicate-venous   (18 taxa)
• 6. sessile or subsessile   (17 taxa)
• 7. sheathing or noding at base   (66 taxa)
• 8. petiolate   (47 taxa)
• 9. apex notched or acute or obtuse or hooked   (20 taxa)
• 10. margin recurved or apex lobed   (17 taxa)
• 11. midvein carinate   (2 taxa)
• 12. absent   (3 taxa)
• 13. base clasping   (30 taxa)
• 14. resupinate   (2 taxa)

• 1. alternate   (17 taxa)
• 2. opposite or subopposite   (3 taxa)
• 3. basal   (16 taxa)
• 4. in two rows   (16 taxa)
• 5. rosette or cauline   (12 taxa)
• 6. distichous   (29 taxa)
• 7. tufted   (4 taxa)

• 1. ovate   (17 taxa)
• 2. lanceolate   (15 taxa)
• 3. orbicular   (2 taxa)
• 4. cordate   (9 taxa)
• 5. elliptic   (20 taxa)
• 6. oblong   (14 taxa)
• 7. lorate   (1 taxon)
• 8. falcate   (3 taxa)
• 9. spatulate   (1 taxon)
• 10. tubular
• 11. cylindric   (5 taxa)
• 12. base V-shaped   (7 taxa)

• 1. raceme   (127 taxa)
• 2. panicle   (13 taxa)
• 3. spikelike   (6 taxa)
• 4. umbel   (2 taxa)

• 1. terminal or subterminal   (73 taxa)
• 2. arising from leaf axil   (12 taxa)
• 3. laterally on stem   (33 taxa)
• 4. opposite leaf   (3 taxa)

• 1. small   (11 taxa)
• 2. longer than ovary
• 3. leaflike   (9 taxa)
• 4. membranous   (4 taxa)
• 5. pubescent or ciliate or notched at margin   (3 taxa)
• 6. lanceolate or ovate   (4 taxa)
• 7. erect or spreading   (1 taxon)
• 8. scalelike   (2 taxa)

• 1. glabrous   (2 taxa)
• 2. on pseudobulb apex   (4 taxa)
• 3. arising laterally on pseudobulb or base of short stem or nodes of rhizome   (17 taxa)
• 4. emerging from center of leaves or pseudobulb base or rhizome   (10 taxa)
• 5. with sheath   (8 taxa)
• 6. hairy   (3 taxa)

• 1. rachis pubescent or zigzagged flexuose or winged   (7 taxa)
• 2. pedicel long or extremely short
• 3. branched   (17 taxa)
• 4. unbranched   (28 taxa)
• 5. peduncle hairy   (3 taxa)
• 6. peduncle glabrous   (1 taxon)
• 7. spirally twisted   (1 taxon)
• 8. peduncle and rachis with winged ribs or sheath   (4 taxa)
• 9. decumbent   (2 taxa)

• 1. resupinate   (38 taxa)
• 2. zygomorphic   (1 taxon)
• 3. actinomorphic   (5 taxa)
• 4. recurved   (1 taxon)
• 5. spreading   (22 taxa)
• 6. distichously arranged   (2 taxa)
• 7. secund   (4 taxa)
• 8. pendulous   (11 taxa)
• 9. solitary   (7 taxa)

• 1. free or similar   (109 taxa)
• 2. abaxially hairy   (11 taxa)
• 3. dorsal sepal connivent with petals forming a hood   (21 taxa)
• 4. concave   (13 taxa)
• 5. with petals connate into a tube   (6 taxa)
• 6. lateral sepals adnate to column foot or labellum forming a mentum   (28 taxa)
• 7. lateral sepals dilated or saccate at base or bent downward   (8 taxa)
• 8. lateral sepals spreading or oblique or reflexed or connivent   (37 taxa)
• 9. 1-veined   (1 taxon)
• 10. abaxially keeled   (4 taxa)

• 1. shorter or smaller than sepals   (31 taxa)
• 2. similar to sepals   (45 taxa)
• 3. 2-lobed at apex   (1 taxon)
• 4. free   (21 taxa)
• 5. base connivent to sepals or with claw   (9 taxa)
• 6. narrower than sepals or as long as dorsal sepal   (45 taxa)
• 7. adnate to dorsal sepal forming a hood   (4 taxa)
• 8. with dark fine spots or markings
• 9. spatulate or tapelike   (2 taxa)
• 10. spotted   (1 taxon)
• 11. broader than sepals   (16 taxa)

• 1. with sac or spur or auricles at base   (87 taxa)
• 2. spherical or elliptic or clavate   (3 taxa)
• 3. T-shaped or Y-shaped   (2 taxa)
• 4. with broad mentum   (1 taxon)
• 5. 3-lobed   (104 taxa)
• 6. 2-lobed   (9 taxa)
• 7. 3-partite   (5 taxa)
• 8. divided into epichil and hypochil   (7 taxa)
• 9. sessile   (1 taxon)
• 10. twisted   (1 taxon)
• 11. absent   (2 taxa)
• 12. with longitudinal ridges or keels   (15 taxa)
• 13. pandurate or trumpet-shaped   (4 taxa)
• 14. adnate to column   (63 taxa)
• 15. parallel to column   (2 taxa)
• 16. not lobed   (54 taxa)
• 17. with 2 poles near base   (1 taxon)
• 18. 5-lobed   (2 taxa)

• 1. with 3 fertile stamens   (1 taxon)
• 2. with 2 fertile stamens   (3 taxa)
• 3. with 1 staminode on top   (2 taxa)
• 4. 1 stigma below   (2 taxa)
• 5. appressed-cylindrical   (1 taxon)
• 6. cylindrical   (3 taxa)
• 7. downcurved   (1 taxon)
• 8. with wing or triangular-falcate or arm-shaped or subulate appendages   (54 taxa)
• 9. with column foot   (53 taxa)
• 10. without column foot   (58 taxa)
• 11. with auricles   (4 taxa)
• 12. without appendage   (3 taxa)
• 13. puberulous or pubescent   (3 taxa)

• 1. 2-loculed   (49 taxa)
• 2. with 2 chambers   (1 taxon)
• 3. lanceolate   (1 taxon)
• 4. ovoid   (1 taxon)
• 5. with cucullate operculum
• 6. hatlike   (2 taxa)
• 7. 4-loculed   (1 taxon)

• 1. concave   (22 taxa)
• 2. liplike protruding   (1 taxon)
• 3. with appendage   (1 taxon)
• 4. 3-lobed or 2-lobed   (2 taxa)
• 5. with papilla   (2 taxa)
• 6. convex   (7 taxa)
• 7. linear or globose or subclavate   (1 taxon)
• 8. capitate   (1 taxon)
• 9. 1   (11 taxa)
• 10. 2   (19 taxa)

• 1. absent   (4 taxa)
• 2. glabrous   (1 taxon)
• 3. ligulate or ovate or U-shaped or deltoid   (10 taxa)
• 4. spreading horizontally or suberect   (3 taxa)
• 5. 2-lobed or beaked   (39 taxa)
• 6. twisted   (1 taxon)
• 7. with 2 arms   (9 taxa)
• 8. base cleft   (1 taxon)
• 9. 3-lobed   (1 taxon)

• 1. with appendage   (2 taxa)
• 2. with protrusion   (2 taxa)
• 3. ovate-cordate   (1 taxon)
• 4. apically mucronate   (1 taxon)
• 5. papillose   (1 taxon)

• 1. 0   (4 taxa)
• 2. 1
• 3. 2   (88 taxa)
• 4. 3
• 5. 4   (61 taxa)
• 6. 5
• 7. 6   (1 taxon)
• 8. 7
• 9. 8   (21 taxa)

• 1. absent
• 2. 1   (2 taxa)
• 3. 2   (17 taxa)
• 4. 3
• 5. 4
• 6. 5   (1 taxon)
• 7. spotted   (2 taxa)

• 1. subclavate or ovate   (3 taxa)
• 2. obovate   (9 taxa)
• 3. dumbbell-shaped
• 4. conical
• 5. globose or subglobose   (33 taxa)

• 1. granular-farinaceous   (61 taxa)
• 2. without appendage   (7 taxa)
• 3. 2-parted   (6 taxa)
• 4. neither caudicle nor viscidium   (20 taxa)
• 5. with caudicle or viscidium   (111 taxa)
• 6. 2-lobed or 4-lobed   (2 taxa)
• 7. with stipe   (48 taxa)
• 8. without caudicle   (12 taxa)
• 9. with slit   (12 taxa)

• 1. linear   (2 taxa)
• 2. compressed   (2 taxa)
• 3. cuneate   (4 taxa)
• 4. obovate or subobovate   (2 taxa)
• 5. lanceolate   (2 taxa)
• 6. spatulate or subspatulate   (3 taxa)
• 7. 5-angulared   (1 taxon)
• 8. triangular or subtriangular   (5 taxa)
• 9. kneel-curved   (1 taxon)
• 10. tapelike   (3 taxa)
• 11. oblanceolate   (1 taxon)

• 1. peltate   (1 taxon)
• 2. orbicular or suborbicular   (7 taxa)
• 3. involute
• 4. hornlike
• 5. ovate   (3 taxa)
• 6. oblate
• 7. rectangular or square
• 8. triangular or subtriangular   (2 taxa)
• 9. sandlelike or subreniform   (2 taxa)
• 10. saddlelike or luniform   (3 taxa)
• 11. cymbiform   (1 taxon)

• 1. thick
• 2. naked
• 3. wider than stipe   (19 taxa)
• 4. narrow than stipe
• 5. as wide as stipe   (3 taxa)
• 6. apex lobed   (1 taxon)
• 7. lamellate

• 1. berry   (1 taxon)
• 2. capsule   (35 taxa)
• 3. fleshy   (1 taxon)

• 1. cylindrical   (3 taxa)
• 2. obovate   (1 taxon)
• 3. elliptic   (5 taxa)
• 4. oblong   (2 taxa)
• 5. legume-shaped   (2 taxa)
• 6. oblong-fusiform   (2 taxa)
• 7. globose   (2 taxa)

• 1. longitudinally 3-ribbed   (2 taxa)
• 2. pendulous or ascending   (2 taxa)
• 3. erect   (9 taxa)
• 4. with 3 or 6 ridges   (4 taxa)
• 5. with persistent column   (3 taxa)
• 6. glabrous   (1 taxon)
• 7. with apical beak
• 8. dehiscent   (3 taxa)
• 9. indehiscent   (2 taxa)
• 10. winged or ribbed   (2 taxa)

• 1. with thick testa   (6 taxa)
• 2. wingless   (2 taxa)
• 3. winged   (3 taxa)