Character/Data Set Information   

Interactive Key for the Genera of Chinese Zingiberaceae         Search

Project supported by Biological Herbarium Construction Project of Chinese Academy of Sciences: Botany Center of Internet Information System.

1: General [Unordered List]

• 1. Pseudostem leafy   (5 taxa)
• 2. Pseudostem hairy
• 3. Root fascicled   (2 taxa)
• 4. Root tuberous   (2 taxa)
• 5. Pseudostem absent   (1 taxon)
• 6. Pseudostem short or obsolete   (1 taxon)

• 1. tuberous   (6 taxa)
• 2. non-tuberous
• 3. branched   (3 taxa)
• 4. creeping   (6 taxa)
• 5. bearing pseudostems at intervals   (1 taxon)

• 1. Distichous   (1 taxon)
• 2. Basal   (2 taxa)
• 3. Cauline   (1 taxon)

• 1. oblong   (10 taxa)
• 2. lanceolate   (14 taxa)
• 3. linear   (4 taxa)
• 4. elliptic-oblong   (1 taxon)
• 5. oblong-lanceolate   (3 taxa)
• 6. suborbicular   (1 taxon)
• 7. filiform   (1 taxon)
• 8. obovate   (1 taxon)
• 9. lanceolate-oblong   (2 taxa)

• 1. ligule 2-lobed   (6 taxa)
• 2. ligule a curved line at junction of tubular leaf sheath and leaf blade   (1 taxon)
• 3. ligule entire   (3 taxa)
• 4. leaf base cordate   (1 taxon)
• 5. subsagittate   (1 taxon)
• 6. arising directly from rhizomes   (1 taxon)
• 7. ligule small or absent   (1 taxon)

• 1. present   (13 taxa)
• 2. absent   (6 taxa)
• 3. swollen   (1 taxon)
• 4. cushionlike   (1 taxon)

• 1. more flowered or 2-ranked and subtending 1 bracteole and 1 flower   (3 taxa)
• 2. 1-flowered or 2-flowered   (9 taxa)
• 3. bracts each subtending a flower or a cincinnus of 2 to many flowers   (3 taxa)
• 4. margin entire or fimbriate   (1 taxon)
• 5. bracteoles present   (3 taxa)
• 6. bracteoles absent   (3 taxa)
• 7. bracteoles tubular   (6 taxa)
• 8. bracteoles not tubular   (2 taxa)
• 9. bracteoles apex 2-lobed or 2-cleft to base   (1 taxon)
• 10. bracts 1-3, concave   (1 taxon)

• 1. conical,arising from rhizomes on peduncle clothed with scalelike sheaths   (5 taxa)
• 2. breaking through leaf sheaths   (2 taxa)
• 3. panicle   (2 taxa)
• 4. raceme   (4 taxa)
• 5. spike   (9 taxa)
• 6. covered by 1-3 spatulate involucral bracts   (1 taxon)
• 7. lax   (3 taxa)
• 8. dense   (2 taxa)
• 9. lateral
• 10. terminal   (13 taxa)
• 11. arising from pseudostems   (4 taxa)
• 12. capitate   (2 taxa)
• 13. surrounded by a campanulate involucre   (1 taxon)

• 1. white   (1 taxon)
• 2. pinkish   (1 taxon)
• 3. tubular   (19 taxa)
• 4. apex 2-lobed or 2-toothed   (7 taxa)
• 5. apex 3-lobed or 3-toothed   (16 taxa)
• 6. split on 1 side   (13 taxa)
• 7. campanulate or turbinate   (2 taxa)

• 1. longer than calyx   (5 taxa)
• 2. shorter or equalling calyx   (3 taxa)
• 3. apex incurved at a right angle   (1 taxon)
• 4. funnelform   (1 taxon)
• 5. apex dilated   (1 taxon)
• 6. corolla tube exserted from calyx   (1 taxon)
• 7. campanulate   (1 taxon)

• 1. 3   (5 taxa)
• 2. ovate-oblong   (5 taxa)
• 3. elliptic   (1 taxon)
• 4. shorter than corolla tube   (1 taxon)
• 5. central lobe erect,hooded or concave   (3 taxa)
• 6. lateral lobes spreading and partly adnate to labellum   (1 taxon)
• 7. lateral lobes connate to claw of labellm for about 1/2 thier length   (1 taxon)
• 8. central lobe longer and wider than lateral lobes   (10 taxa)
• 9. concave   (2 taxa)
• 10. apex mucronate or obtuse   (1 taxon)

• 1. oblong or spatulate   (3 taxa)
• 2. obovate or tongue-shaped   (4 taxa)
• 3. entire   (4 taxa)
• 4. apex lobed or cleft or concave or emarginate   (15 taxa)
• 5. larger or longer than corolla lobes   (3 taxa)
• 6. equaling corolla lobes   (1 taxon)
• 7. reduced to a tooth or absent   (1 taxon)
• 8. base adnate to filament forming a tube   (3 taxa)
• 9. reflexed   (3 taxa)
• 10. lateral lobes overlaping with lateral staminodes   (1 taxon)
• 11. with a central and yellow blotch   (1 taxon)

• 1. 6 or 2 whorls
• 2. lateral staminode toothlike or subulate   (3 taxa)
• 3. lateral staminodes adnate to labellum and forming a 3-lobed labellum   (2 taxa)
• 4. lateral staminodes forming small teeth at base of labellum   (1 taxon)
• 5. lateral staminode absent or very short   (7 taxa)
• 6. stamen shorter than labellum   (2 taxa)
• 7. petaloid   (9 taxa)

• 1. present   (1 taxon)
• 2. short or absent   (13 taxa)
• 3. long   (1 taxon)
• 4. erect   (2 taxa)
• 5. curved   (1 taxon)
• 6. exserted from or above corolla, distally grooved   (2 taxa)
• 7. boat-shaped   (1 taxon)

• 1. linear or oblong   (3 taxa)
• 2. basifixed   (2 taxa)
• 3. dorsifixed   (1 taxon)
• 4. versatile   (1 taxon)
• 5. base divaricate   (1 taxon)
• 6. apex emarginate   (1 taxon)
• 7. locules parallel   (3 taxa)
• 8. locules diverging   (1 taxon)
• 9. dehiscing by slits or apical pores   (1 taxon)
• 10. base without spur   (1 taxon)
• 11. base with spur   (1 taxon)

• 1. forming a reflexed crest   (3 taxa)
• 2. without appendage   (7 taxa)
• 3. appendage deltoid
• 4. appendage entire   (3 taxa)
• 5. 2-cleft or 3-lobed   (2 taxa)
• 6. appendage basal and forked   (1 taxon)
• 7. exttende at base into a spur   (1 taxon)
• 8. appendage wrapped around style   (1 taxon)

• 1. inferior
• 2. 1-loculed   (1 taxon)
• 3. 3-loculed   (17 taxa)
• 4. placentation axile   (6 taxa)
• 5. ovules many per locule   (7 taxa)
• 6. 3-loculed basally, 1-loculed apically   (1 taxon)
• 7. ovules biseriate   (1 taxon)

• 1. extending beyond anther locules   (1 taxon)
• 2. stylodes short or absent   (2 taxa)
• 3. stylodes massive   (1 taxon)
• 4. stylodes 2   (4 taxa)
• 5. stylodes >2   (1 taxon)
• 6. filiform or linear   (7 taxa)
• 7. stylodes united   (1 taxon)
• 8. stylodes free   (2 taxa)

• 1. well expanded   (1 taxon)
• 2. clavate   (1 taxon)
• 3. genulate   (1 taxon)
• 4. funnelform   (3 taxa)
• 5. margin ciliate   (5 taxa)
• 6. obconical   (1 taxon)

• 1. cylindric or oblong   (4 taxa)
• 2. torulose   (1 taxon)
• 3. globose   (8 taxa)
• 4. 3-valved   (4 taxa)
• 5. clavate   (1 taxon)
• 6. dehiscent   (7 taxa)
• 7. indehiscent   (4 taxa)
• 8. longitudinally ridged or with obtuse warts in rows   (1 taxon)
• 9. winged   (1 taxon)
• 10. brittle   (1 taxon)

• 1. numberous   (1 taxon)
• 2. angled   (5 taxa)
• 3. ovoid   (1 taxon)
• 4. globose or subglobose   (2 taxa)
• 5. ellipsoid   (1 taxon)
• 6. aril small or absent
• 7. arillate   (5 taxa)
• 8. aril lacerate   (4 taxa)
• 9. aril laciniate   (2 taxa)