| Gesneriaceae Dumort. (Family) |
C | | | | | | | | B | | details |
| Gesneriaceae Dumort. subfam. Gesnerioideae (Subfamily) |
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| Gesneriaceae Dumort. subfam. Gesnerioideae tr. Gloxinieae Fritsch (Tribe) |
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| Houttea Heynh. (Genus) |
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| Houttea aggregata Fenzl (Species) |
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| Houttea calcarata Hort. (Species) |
| | | | | | | | | sB | details |
| Houttea caulescens Glaz. (Species) |
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| Houttea gardneri Dcne. (Species) |
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| Houttea leptopus (Gardner) Hanst. (Species) |
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| Houttea pardina Dcne. (Species) |
| | | | | | | | | sB | details |
| Houttea salviifolia (Gardner) Hanst. (Species) |
| | | | | | | | | sB | details |