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(Last Modified On 9/17/2013)
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(Last Modified On 9/17/2013)
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Genus
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Rondeletia L.
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PlaceOfPublication
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Sp. P1. 172, 1753.
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Note
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TYPE: R. americana L.
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Synonym
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Petesia P. Br., Civ. Nat. Hist. Jam. 143, tab. 2 & 3, 1756. TYPE: not designated. Lightfootia Screb., Gen. P1. 122, 1789, not Swartz 1788, not L'Her. 1788. TYPE: not given. Willdenovia J. F. Gmelin, Syst. Nat. 2: 362, 1791, not Thunb. TYPE: W. schreberi Gmel. Arachnimorpha Desv. in Hamilt., Prodr. 28, 1825. TYPE: not designated. Rogiera Planch., Fl. Serres 5: 442, 1849. TYPE: R. amoena Planch. Arachnothryx Planch., Fl. Serres 5: 442. 1849. TYPE: R. buddleioides Benth.
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Description
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Shrubs or trees. Leaves coriaceous to membranous, often acuminate; stipules interpetiolar, free, mostly entire. Inflorescences terminal or axillary, usually pa- niculate, rarely thrysoid, rarely racemose or spiciform, pedunculate. Flowers with the hypanthium rotund or oblong, the calycine cup with 4-6(-7) lobes, the lobes occasionally foliaceous; corolla tube narrowly cylindrical, hairs present or absent within, occasionally the mouth with a ringlike thickening, the lobes 4-6, imbricate; stamens 4-6, the anthers oblong, dorsifixed, the filaments often un- equal; ovarian disc annular, the style slender, the stigmas 2(-3), the ovary 2(-3) celled, the septum complete or incomplete, the ovules numerous. Fruits capsular, globose or rotund, the valves 2, splitting loculicidally or septicidally, each valve often split; seeds numerous, exalate or winged at one or both poles.
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Habit
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Shrubs or trees
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Note
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Rondeletia has about 125 species
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Distribution
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found in the West Indies, Mexico, Central America and South America.
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Reference
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Kirkbride, J. 1969. A revision of the Panamanian species of Rondeletia (Rubi- aceae). Ann. Missouri Bot. Gard. 3: 372-391.
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Key
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a. Leaves bullate ...... 9. R. odorata var. breviflora aa. Leaves not bullate. b. Leaves with dense white indumentum beneath. c. Leaves arachnoid-tomentose beneath; calycine lobes 10-13 mm long ...... 6. R. darienensis cc. Leaves white tomentose beneath; calycine lobes to 2 mm long ...... 3. R. buddlejoides bb. Leaves glabrate beneath. d. Leaves subcoriaceous; stipules reflexed ...... 1. R. ainoena dd. Leaves membranous or chartaceous; stipules erect. e. Flowers 4-merous; fruit septicidal (not seen in R. d'arcyi and R. kirkbridei), loculicidal in R. secunda. f. Calycine lobes unequal in length. g. Calycine lobes inconsistent as to one being 2 times longer than the other ...... 5. R. darcyi gg. Calycine lobes unequal in length, with one 2 or more times longer than the other 3. h. The large calycine lobe 2.0-7.5 mm long, capsule strigose or glabrous. i. Hypanthium densely strigose or puberulent. j. Hypanthium densely strigose, corolla tube 9-11 mm long, white ...... 4. R. cooperi Jj. Hypanthium puberulent; corolla tube ca. 20 mm long, pink or lavender ...... 8. R. kirkbridei ii. Hypanthium arachnoid tomentose. k. Small calycine lobes linear or narrowly oblong, 1.7-4.0 mm long; capsule loculicidal ...... 13. R. secunda kk. Small calycine lobes triangular, 0.3-1.8 mm long; capsule septicidal ...... 2. R. bertieroides hh. The large calycine lobe 6.0-11.5 mm long ...... 12. R. salicifolia ff. Calycine lobes about equal in length ...... 11. R. platysepala ee. Flowers 5-merous; fruits loculicidal. 1. Calycine lobes 1-2 mm long; corolla tube 6-9 mm long ...... 7. R. hainelifolia 11. Calycine lobes ca. 8.5 mm long; corolla tube 11-18 mm long ...... 10. R. panamensis
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