Meriania
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publication ID |
https://doi.org/ 10.11646/phytotaxa.602.1.1 |
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DOI |
https://doi.org/10.5281/zenodo.8147107 |
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persistent identifier |
https://treatment.plazi.org/id/03B887DA-FFB2-FFBA-FF62-C71AFA6DF7A2 |
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treatment provided by |
Plazi |
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scientific name |
Meriania |
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Key to the species of Meriania View in CoL View at ENA in Peru
1. Leaf blades with dentate-undulate, revolute auricles at the base ( Fig. 4L View FIGURE 4 ), and punctiform abaxial surfaces ( Fig. 4B View FIGURE 4 ) M. cuzcoana View in CoL
- Leaf blades without auricles (but M. rigida View in CoL and M. zunacensis View in CoL with revolute bases, and M. franciscana View in CoL and M. neillii View in CoL with slightly revolute bases), and abaxial surface not punctiform ..........................................................................................................................2
2. Inflorescences solitary, dichasia 3 or 9-flowered (often reduced to 5-flowered) ...............................................................................3
- Inflorescences in panicles with more than 10 flowers (but see comments below M. hirsuta View in CoL )...........................................................5
3. Calyx calyptrate with irregular dehiscence ................................................................................................................... M. sessilifolia View in CoL
- Calyx lobed with regular dehiscence..................................................................................................................................................4
4. Terminal branches and leaf blades glabrous; leaf blades 7.7–10 cm long; hypanthium terete; calyx with acute dorsal projections .. .......................................................................................................................................................................................... M. speciosa View in CoL
- Terminal branches and abaxial leaf blades moderately to densely furfuraceous; leaf blades 2.3–8.2 cm long; hypanthium slightly costate; calyx with acicular dorsal projections ( Fig. 5H View FIGURE 5 ) .............................................................................................. M. prunifolia View in CoL
5. Leaf blades bullate ( Fig. 4A View FIGURE 4 ); corolla campanulate and deep red; stamen connectives with dorsal-basal appendages almost perpendicular to thecae ( Fig. 6G View FIGURE 6 ).......................................................................................................................................................6
- Leaf blades flat to bullate; corolla spreading or campanulate, white, pink, pink-orange to reddish-orange, or fuchsia to reddish-purple but never deep red (except red in M. rubriflora View in CoL ); stamen connectives with dorsal-basal appendages not perpendicular to thecae..................................................................................................................................................................................................9
6. Nodes with developed interpetiolar flaps...........................................................................................................................................7
- Nodes with only interpetiolar lines, not flaps.....................................................................................................................................8
7. Internodes quadrangular and 4-winged ( Fig. 3D View FIGURE 3 ); petioles with abaxial tuberculate projections (rarely horn-shaped) on the transition zone from the petiole to the midvein ( Fig. 3H View FIGURE 3 ) .............................................................................................................. M. tetragona View in CoL
- Internodes terete-quadrangular; petioles with abaxial liguliform projections on the transition zone from the petiole to the midvein ( Fig. 3G View FIGURE 3 ) ........................................................................................................................................................................ M. sanguinea View in CoL
8. Branches, petioles, and both leaf surfaces hirsute ( Fig. 4J View FIGURE 4 ); antesepalous stamen connectives with dorso-basal appendages laterally expanded............................................................................................................................................................................. M. hirsuta View in CoL
- Branches, petioles, and abaxial leaf surfaces moderately to densely setulose ( Fig. 4H View FIGURE 4 ); stamen connectives from both cycles with dorso-basal appendages not laterally expanded .................................................................................................................. M. radula View in CoL
9. Antepetalous stamens with inflated (bulbous) connectives ( Fig. 6H View FIGURE 6 )..............................................................................................10
- Stamens from both cycles without inflated (bulbous) connectives ..................................................................................................13
10. Leaf blades subpeltate to peltate ( Fig. 4K View FIGURE 4 ), and more than 8.4 cm wide .........................................................................................11
- Leaf blades neither subpeltate nor peltate, less than 8.1 cm wide....................................................................................................12
11. Leaf blades 22.8–28.7 × 13.3–16.7 cm, peltate, abaxial surfaces pubescent to setulose .................................................... M. peltata View in CoL
- Leaf blades 17.2–27.7 × 8.1–15.5 cm, subpeltate, abaxial surfaces puberulent ...................................................... M. ninakurorum
12. Leaf abaxial surface densely pubescent, the trichomes evenly covering the entire surface ( Fig. 4F View FIGURE 4 ); petals fuchsia to light fuchsia; antepetalous stamen connectives without dorsal appendages ................................................................................... M. bicentenaria View in CoL
- Leaf abaxial surface sparsely to densely puberulent, the trichomes not covering the entire surface; petals reddish-purple; antepetalous stamen connectives with blunt ascending dorsal appendages ..................................................................................... M. franciscana View in CoL
13. Stamens strongly dimorphic (connectives with different shapes, sizes and colors), antepetalous stamen connectives with apically trilobed ( Fig. 6F View FIGURE 6 ) or sagittate ascending dorsal appendages ............................................................................................................14
- Stamens dimorphic (connectives with different shapes and sizes but with similar colors) or isomorphic, stamen connectives from both cycles without dorsal appendages ( Fig. 6A View FIGURE 6 ), with dentiform dorsal appendages ( Fig. 6E View FIGURE 6 ), with blunt ascending dorsal appendages ( Fig. 6B View FIGURE 6 ) or dorsal appendages as mere humps ( Fig. 6C and 6D View FIGURE 6 )................................................................................15
14. Petioles with adaxial and lateral liguliform projections on the apex; corolla white; antepetalous stamen connectives with apically trilobed ascending dorsal appendages ( Fig. 6F View FIGURE 6 ) ............................................................................................................ M. microflora View in CoL
- Petioles without projections; corolla fuchsia; antepetalous stamen connectives with apically sagittate ascending dorsal appendages ...................................................................................................................................................................... M. urceolata View in CoL
15. Corolla campanulate, pink-orange to reddish-orange (except fuchsia in M. vasquezii View in CoL and red in M. rubriflora View in CoL ) ( Fig. 3J View FIGURE 3 ).............16
- Corolla spreading, fuchsia to reddish-purple ( Fig. 3I View FIGURE 3 ) .....................................................................................................................22
16. Calyx calyptrate or subcalyptrate, with irregular dehiscence ( Fig. 5F View FIGURE 5 ) ...........................................................................................17
- Calyx neither calyptrate nor subcalyptrate, with regular dehiscence ...............................................................................................20
17. Calyx calyptrate, without dorsal projections....................................................................................................................................18
- Calyx subcalyptrate, with dorsal projections 0.5–3 mm long ( Fig. 5F View FIGURE 5 ) ...........................................................................................19
18. Inflorescences with flowers in regular dichasia (3-flowered) in the branchlet ends; petals 20–24 mm long ............... M. tomentosa View in CoL
- Inflorescences with flowers in 5–6-flowered umbels in the branchlet ends; petals 9–10 mm long...................................... M. acida View in CoL
19. Leaf blades 10.8–12.7 × 2.7–3 cm, abaxial surface sparsely to moderately puberulent, trichomes not covering the entire surface... ............................................................................................................................................................................................. M. juanjil View in CoL
- Leaf blades 16.5–23.5 × 9.3–10.7 cm, abaxial surface densely villose, evenly covering the entire surface .................. M. vasquezii View in CoL
20. Nodes with robust interpetiolar flaps; inflorescences pendulous; calyces with obsolete dorsal projections ................. M. rubriflora View in CoL
- Nodes without interpetiolar flaps; inflorescences erect; calyces with claw-shaped dorsal projections ( Fig. 5D View FIGURE 5 ) ...........................21
21. Abaxial leaf surface tomentose with whitish to cream trichomes when dry; petals 19.5–24 mm long ................................ M. dazae View in CoL
- Abaxial leaf surface pubescent with ferrugineous trichomes when dry; petals 13–15.5 mm long.............................. M. bongarana View in CoL
22. Calyx calyptrate, with circumscissile dehiscence ( Fig. 5G View FIGURE 5 )....................................................................................... M. escalerensis View in CoL
- Calyx not calyptrate, with regular dehiscence..................................................................................................................................23
23. Stamens dimorphic; antesepalous stamen connectives with descending dorso-basal appendages laterally expanded ( Fig. 6I View FIGURE 6 ) .....24
- Stamens isomorphic; stamen connectives from both cycles with descending dorso-basal appendages not laterally expanded......28
24. Leaves subsessile (petioles up to 3 mm long), base auriculate .............................................................................. M. amischophylla View in CoL
- Leaves with petioles longer than 8 mm, base acute, attenuate, or obtuse (rarely broadly obtuse in M. weberbaueri View in CoL )....................25
25. Stamen connectives without dorsal appendages......................................................................................................... M. weberbaueri View in CoL
- Stamen connectives with blunt ascending dorsal appendages ( Fig. 6B View FIGURE 6 )..........................................................................................26
26. Hypanthium 10-costate, with longitudinal ridges up to 2.5 mm high ( Fig. 5I View FIGURE 5 )............................................................... M. sumatika View in CoL
- Hypanthium terete, without ridges ...................................................................................................................................................27
27. Inflorescences, hypanthia, and calyces densely tomentose, the trichomes up to 1.5 mm long......................................... M. vargasii View in CoL
- Inflorescences, hypanthia, and calyces sparsely to densely furfuraceous, the trichomes up to 0.25 mm long ( Fig. 4D View FIGURE 4 ) .................... ............................................................................................................................................................................... M. vilcabambensis View in CoL
28. Nodes with robust interpetiolar flaps (sometimes small in M. callosa View in CoL ) ( Fig. 3B View FIGURE 3 ) ...........................................................................29
- Nodes without interpetiolar flaps .....................................................................................................................................................31
29. Internodes quadrangular and 4-winged; stamen connectives with blunt ascending dorsal appendages ( Fig. 6B View FIGURE 6 ) ..... M. megaphylla View in CoL
- Internodes quadrangular, but not winged; stamen connectives with dorsal appendages as mere humps or obsolete......................30
30. Petioles 25–50 mm long, with an adaxial projection (scutum) on the transition zone from the petiole to the midvein ( Fig. 3E View FIGURE 3 )....... ...................................................................................................................................................................................... M. zunacensis View in CoL
- Petioles 10–22 mm long, without projections ..................................................................................................................... M. callosa View in CoL
31. Petioles with an apical adaxial projection ( Fig. 3F View FIGURE 3 ); petals abaxially moderately to densely puberulent ........................... M. drakei View in CoL
- Petioles without projections; petals glabrous ...................................................................................................................................32
32. Leaf blades with entire margins, and the adaxial surfaces flat.........................................................................................................33
- Leaf blades with denticulate margins, and the adaxial surfaces flat to bullate ................................................................................34
33. Flowers 6-merous; calyx without dorsal projections ( Fig. 5A View FIGURE 5 )............................................................................................. M. neillii View in CoL
- Flowers 5-merous; calyx with thick, callose dorsal projections........................................................................................... M. rigida View in CoL
34. Leaf venation with 1 pair of secondary veins (lateral nerves) and an additional pair of faint submarginal veins.............. M. rugosa View in CoL
- Leaf venation with 2 pairs of secondary veins (lateral nerves) and an additional pair of faint submarginal veins .........................35
35. Internodes quadrangular and 4-winged, wings 1–3.5 mm high ( Fig. 3C View FIGURE 3 ); calyx with callose dorsal projections, whitish and much lighter than the rest of the calyx and hypanthium when dry ( Fig. 5C View FIGURE 5 )...................................................................... M. penningtonii View in CoL
- Internodes quadrangular, without wings; calyx with small conic dorsal projections, of the same color as the rest of the calyx and hypanthium when dry ................................................................................................................................................... M. tetraquetra View in CoL
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