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Key to Species

Riedelia Meissner in Martius, Fl. brasil. 7: 172.  1863.  Type:  Riedelia bahiensis Meissner [=Satyria panurensis (Benth. ex Meissner) Benth. & Hook.f. ex Niedenzu].

     Epiphytic or terrestrial shrubs.  Leaves alternate, evergreen, coriaceous, usually plinerved, but rarely pinnately veined, petiolate.  Inflorescence terminal or axillary, often cauliflorous, pin-cushion type (glomerulate), racemose, or subfasciculate, often ramiflorous, with few to many, often pendent flowers;  floral bract small;  pedicels minutely bibracteolate.  Flowers 5-merous, without odor;  aestivation valvate;  calyx articulate with the pedicel; hypanthium subglobose to shortly campanulate;  limb flaring or spreading;  lobes (3-4)5, ovate to triangular or merely apiculate;  corolla carnose, cylindric to narrowly vasiform, the lobes usually 5, triangular to narrowly oblong, acute;  stamens 10, alternately unequal, shorter than the corolla and usually only about 1/3 as long;  filaments equal, firmly connate into a monadelphous tube for more than half their length, membranaceous to thinly coriaceous;  anthers subcoriaceous, firm, alternately unequal in length and slightly dimorphic in shape, basifixed, the longer ones spreading distally with the tips then often incurved and often ornately decorated in a dendritic pattern and the tubules twisted to present latrorse dehiscence, the shorter ones laterally coherent distally with the tips straight and often not ornate, lacking spurs, lacking disintegration tissue;  thecae subcoriaceous, firm, slighlty granular;  tubules straight to curved, flaring distally but not sharply differentiated from the thecae, dehiscing sometimes alternately introrse and latrorse;  pollen without viscin threads;  ovary inferior;  nectariferous disc usually conspicuous, annular-pulvinate;  style filiform and as long as the corolla or slightly exserted;  stigma usually truncate.  Fruit a spherical berry, dark blue-black, rarely translucent white.

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1.   Bracteoles located at apex of pedicel; Colombia .......................  S. bracteolosa
1.   Bracteoles located at middle of pedicel, or below .......................................... 2
2.   Inflorescences racemose, elongate, rachis (0.6-)1.5-4(-7) cm long.................  3
2.   Inflorescences short, flowers usually fascicled, rachis less than 1 cm long ........ 9
3.   Corolla 40-47 mm long; Colombia ............................................  S. dolichantha
3.   Corolla up to 31 mm long .............................................................................. 4
4.   Leaves elliptic-oblong, 3-6 x 1-2.5 cm; anther base setose ............................. 5
4.   Leaves ovate to oblong at least 7 x 2.5 cm or larger; anther base glabrous
      or subpuberulous ........................................................................................... 6
5.   Inflorescence glabrous; leaves 3-6 x 1.2-1.8 cm, glabrous beneath; Bolivia ...
      ....................................................................................................... S. neglecta
5.   Inflorescence pubescent; leaves 4-6 x 2-2.5 cm, laxly pubescent beneath;
      Peru ............................................................................................. S. polyantha
6.   Leaf base narrowed and cuneate; Central America ......................  S. panurensis
6.   Leaf base subcordate, rounded, or obtuse; South America ............................. 7
7.   Inflorescence slender, 4-7-flowered; rachis 0.6-1.5 cm long; corolla
      8-11 mm long ............................................................................................... 8
7.   Inflorescence stout, 8-20-flowered; rachis 1.5-4 cm long; corolla 16-31
      mm long; Amazon Basin .............................................................  S. panurensis
8.   Inflorescence pilose; pedicels 16-21 mm long;  Bolivia...................  S. boliviana
8.   Inflorescence glabrous; pedicels 7-12 mm long; French Guiana .....  S. cerander
9.   Calyx densely pubescent; Colombia ..................................................  S. pilosa
9.   Calyx glabrous or only minutely puberulent .................................................. 10
10. Leaves elliptic, 2-3 x 1.3-1.8 cm; flowers 1-2; corolla winged; Peru ...
      .......................................................................................................  S. vargasii
10. Leaves ovate to oblong, larger than 5 x 3 cm; flowers numerous; corolla
      not winged .................................................................................................. 11
11. Corolla 20 mm or more long ........................................................................ 12
11. Corolla less than 17 mm long ....................................................................... 16
12. Anthers subcoriaceous; Central America ................................... S. warszewiczii
12. Anthers stiffy coriaceous; South America ..................................................... 13
13. Leaves broadly oblong, 35 x 15 cm; filaments and anthers puberulous;
      Colombia ......................................................................................... S. latifolia
13. Leaves narrowly oblong up to 40 x 9 cm; filaments an anthers glabrous ........ 14
14. Leaves 23-40 x 4-9.5 cm; pedicels 1.9-2.5 cm long; Colombia .....  S. leptantha
14. Leaves 12-22 x 4.5-11 cm; pedicels 1-2.5 cm long ..................................... 15
15. Leaves 12-22 x 6-11 cm; pedicels 2-5 cm long; Guayana Highland ......
      .................................................................................................  S. carnosiflora
15. Leaves 15-22 x 4.5-7 cm; pedicels 1-2 cm long; Colombia-Ecuador ....
      ...................................................................................................  S. grandifolia
16. Calyx puberulous ........................................................................................ 17
16. Calyx glabrous ............................................................................................ 20
17. Leaves 18-30 cm long; corolla 12-15 mm long; Venezuela .................. S. nitida
17. Leaves up to 20 cm long; corolla 10-12 mm long; Guatemala to Colombia ... 18
18. Leaves 6-9 x 2-3 cm; petioles 6-10 mm long; stamens alternately 4 and
      4.5 mm long; Panama ......................................................................... S. allenii
18. Leaves 11-20 x 3.3-9 cm; petioles 3-12 mm long; stamens longer than
      above ......................................................................................................... 19
19. Leaves 4-9 cm broad; petioles 8-12 mm long; stamens alternately 5 and
      5.5 mm long; Guatemala to Costa Rica ..........................................  S. meiantha
19. Leaves 3.3-4 cm broad; petioles 3-5 mm long; stamens alternately 6-7
      and 8 mm long; Colombia ...............................................................  S. arborea
20. Corolla 7-9 mm long .................................................................................... 21
20. Corolla greater than 11 mm long ................................................................... 22
21. Long anthers 2.5 mm long; Colombia ...........................................  S. minutiflora
21. Long anthers 4 mm long; Ecuador and N Peru ............................  S. leucostoma
22. Leaves two times longer than brad; calyx hypanthium 4 mm diam.;  corolla
      5 mm basal diam.; Colombia ................................................................  S. toroi
22. Leaves three times longer than broad; calyx hypanthium 2-3 mm diam.;
      corolla 3-4 mm diam.; Colombia ...................................................  S. breviflora

   Satyria is being revised by Ann Powell. This on-line synthesis has been modified from Luteyn 1987b and 1996b.

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