Sinningia

Primary tabs

Sinningia

<<Calyx>Corolla>Colour

usually red or orange, rarely yellow, purplish or white1
1. 005-001-001

<<Calyx>Corolla>Shape

campanulate tocylindric2
2. 005-001-002

<<Calyx>Disk>Gland number

1-5 glands, sometimes with 2 larger and connate3
3. 005-004-001

<<Calyx>Ovary>Stigma

stigma stomatomorphic to capitate.4
4. 005-005-001

<<Calyx>Stamens>Anthers

anthers coherent, dehiscing by longitudinal slits,5
5. 005-002-002

<<Calyx>Stamens>Filaments

filaments not connate,6
6. 005-002-001

<<Calyx>Stamens>Thecae

thecae parallel to divergent;7
7. 005-002-003

<Calyx>Corolla

corolla , ;8
8. 005-001

<Calyx>Disk

disc of ;9
9. 005-004

<Calyx>Ovary

ovary half-inferior to almost superior,10
10. 005-005

<Calyx>Stamens

stamens exserted,11
11. 005-002

<Calyx>Staminodes

staminode small;12
12. 005-003

<Flowers>Bracteoles

bracteoles present;13
13. 004-004

<Flowers>Flower number per inflorescence

1 to many14
14. 004-002

<Flowers>Pedicels

pedicellate.15
15. 004-005

<Flowers>Peduncle

usually epedunculate (in Guianan species);16
16. 004-003

<Flowers>Position

axillary, umbellate, cymose, paniculate, or appearing terminal17
17. 004-001

<Fruits>Colour

brown18
18. 006-001

<Fruits>Valve number

2-valved19
19. 006-002

<Fruits>Valves

valves opening slightly.20
20. 006-003

<Habit>Growth form

decumbent to erect21
21. 001-001

Calyx

Calyx lobes connate at base;22
22. 005

Cytology

Chromosome number n=13 (Skog 1984).

Description

Terrestrial or epipetric, rarely epiphytic caulescent decumbent to erect herbs or subshrubs, tuberous. Stems branched or unbranched. Leaves opposite or in whorls, or congested on short stems, nearly equal in a pair or whorl, venation pinnate, foliar nectaries absent. Flowers axillary, umbellate, cymose, paniculate, or appearing terminal, 1 to many in racemes; usually epedunculate (in Guianan species); bracteoles present; pedicellate. Calyx lobes connate at base; corolla usually red or orange, rarely yellow, purplish or white, campanulate tocylindric; stamens exserted, filaments not connate, anthers coherent, dehiscing by longitudinal slits, thecae parallel to divergent; staminode small; disc of 1-5 glands, sometimes with 2 larger and connate; ovary half-inferior to almost superior, stigma stomatomorphic to capitate. Fruit a dry, brown, loculicidally dehiscent, 2-valved capsule, valves opening slightly.

Distribution

Guianas present, Northern America, Southern America: Bolivia (Bolivia present); Uruguay (Uruguay present), Vera Cruz present, northern Argentina present
A wide-ranging genus of about 60-65 species from Vera Cruz in Mexico south to northern Argentina, Bolivia, Uruguay, and with many species in Brazil; 2 species occur in the Guianas, including the widespread S. incarnata.

Flowers

Flowers , in racemes;23
23. 004

Fruits

Fruit a dry, , loculicidally dehiscent, capsule,24
24. 006

Habit

Terrestrial or epipetric, rarely epiphytic caulescent herbs or subshrubs, tuberous.25
25. 001

Leaves

Leaves opposite or in whorls, or congested on short stems, nearly equal in a pair or whorl, venation pinnate, foliar nectaries absent.26
26. 003

Notes

The best-known species in the genus is Sinningia speciosa (Lodd.) Hiern and its cultivars, known as the 'Florist's Gloxinia'. In the Gesneriaceae this species is second only to the 'African Violet' (Saintpaulia spp.) in popularity for growing as pot plants, and has been in cultivation since 1817.

Stems

Stems branched or unbranched.27
27. 002