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Character/Data Set Information   

Interactive key for the genera of Chinese Orchidaceae         Search


Character List

1: Habit [Unordered List]

2: Rhizome [Unordered List]
    • 1. retrose or transverse or creeping or ascending   (32 taxa)
    • 3. with aerial roots   (3 taxa)
    • 4. with fibrous roots   (5 taxa)
    • 10. with proplike roots   (1 taxon)
3: Tuber [Unordered List] 4: Stem [Unordered List] 5: Pseudobulb [Unordered List]
    • 4. corm-shaped or subtuberous or tubular   (6 taxa)
    • 6. ovoid or elliptic or spindle-shaped or ovate or conical   (13 taxa)
    • 8. with internode   (5 taxa)
6: Leaf: characteristics [Unordered List] 7: Leaf: position [Unordered List] 8: Leaf: shape [Unordered List] 9: Inflorescence: type [Unordered List] 10: Inflorescence: position [Unordered List]
    • 1. terminal or subterminal   (73 taxa)
    • 2. arising from leaf axil   (12 taxa)
11: Floral bract [Unordered List]
    • 2. longer than ovary
    • 5. pubescent or ciliate or notched at margin   (3 taxa)
    • 6. lanceolate or ovate   (4 taxa)
    • 7. erect or spreading   (1 taxon)
12: Scape [Unordered List]
    • 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)
14: Inflorescence: other characteristics [Unordered List]
    • 1. rachis pubescent or zigzagged flexuose or winged   (7 taxa)
    • 2. pedicel long or extremely short
    • 5. peduncle hairy   (3 taxa)
    • 8. peduncle and rachis with winged ribs or sheath   (4 taxa)
16: Flower: other characteristics [Unordered List] 17: Sepal [Unordered List]
    • 3. dorsal sepal connivent with petals forming a hood   (21 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)
    • 10. abaxially keeled   (4 taxa)
18: Petal [Unordered List]
    • 1. shorter or smaller than sepals   (31 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)
    • 11. broader than sepals   (16 taxa)
19: Labellum [Unordered List]
    • 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)
    • 8. divided into epichil and hypochil   (7 taxa)
    • 12. with longitudinal ridges or keels   (15 taxa)
    • 13. pandurate or trumpet-shaped   (4 taxa)
    • 15. parallel to column   (2 taxa)
    • 17. with 2 poles near base   (1 taxon)
20: Column [Unordered List]
    • 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)
    • 8. with wing or triangular-falcate or arm-shaped or subulate appendages   (54 taxa)
    • 10. without column foot   (58 taxa)
    • 11. with auricles   (4 taxa)
    • 12. without appendage   (3 taxa)
    • 13. puberulous or pubescent   (3 taxa)
21: Anther [Unordered List] 22: Stigma [Unordered List] 23: Rostellum [Unordered List] 24: Operculum [Unordered List] 25: Pollinia: number [Unordered List] 26: Staminode [Unordered List] 27: Pollinia: shape [Unordered List]
    • 1. subclavate or ovate   (3 taxa)
    • 3. dumbbell-shaped
    • 4. conical
    • 5. globose or subglobose   (33 taxa)
28: Pollinia: other characteristics [Unordered List]
    • 1. granular-farinaceous   (61 taxa)
    • 2. without appendage   (7 taxa)
    • 4. neither caudicle nor viscidium   (20 taxa)
    • 5. with caudicle or viscidium   (111 taxa)
    • 6. 2-lobed or 4-lobed   (2 taxa)
29: Stipe: shape [Unordered List] 30: Viscidium:shape [Unordered List]
    • 2. orbicular or suborbicular   (7 taxa)
    • 3. involute
    • 4. hornlike
    • 6. oblate
    • 7. rectangular or square
    • 8. triangular or subtriangular   (2 taxa)
    • 9. sandlelike or subreniform   (2 taxa)
    • 10. saddlelike or luniform   (3 taxa)
31: Viscidium: other characteristics [Unordered List]
    • 1. thick
    • 2. naked
    • 4. narrow than stipe
    • 5. as wide as stipe   (3 taxa)
    • 7. lamellate
32: Fruit:type [Unordered List] 33: Fruit:shape [Unordered List] 34: Fruit: other characteristics [Unordered List]
    • 1. longitudinally 3-ribbed   (2 taxa)
    • 2. pendulous or ascending   (2 taxa)
    • 4. with 3 or 6 ridges   (4 taxa)
    • 5. with persistent column   (3 taxa)
    • 7. with apical beak
    • 10. winged or ribbed   (2 taxa)
35: Seed [Unordered List] 36: Google Image Search (http://images.google.com/images?q=) [Basic URL]

 

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