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Project Name Data (Last Modified On 9/5/2013)
 

Flora Data (Last Modified On 9/5/2013)
Genus Hamelia Jacq.
PlaceOfPublication Enum. P1. Carib. 16. 1760.
Note LECTOTYPE: H. erecta Jacq. = H. patens Jacq.
Synonym Hamnellia L., Sp. P1., ed. 2, 246. 1762, orth. mut. = Hamelia Jacq. Tangaraca Adans., Fam. P1. 11: 147. 1763. TYPE: not indicated. Lonicera Adans., Fam. P1. 11: 157. 1763. Not Lonicera L. (1753). TYPE: not indicated. Duhamnelia Pers., Syn. P1. 2: 203. 1805. TYPE: not indicated. Tepesia Gaertn., Fruct. Sem. P1. 3: 72. 1805. TYPE: T. dubia Gaertner.
Description Shrubs or small trees. Leaves opposite or in whorls of 3-5, petiolate; stipules free, entire or 3-lobed, small. Inflorescences terminal, of thryses, dichasia or cymes, the floral axes often spreading, the flowers usually secund; bracts decid- uous. Flowers with the hypanthium 5-lobed, the lobes often reduced, persistent
Habit Shrubs or small trees
Description in fruit; corolla tubular or inflated, orange, red or yellow, the lobes 5, imbricate; stamens 5, the connectives produced apically, -the filaments attached at the base of the corolla; ovary (4-)5-celled, the style slender, the stigmas 1-5. Fruits fleshy, the ovarian disc often persistent and forming a truncated cone; seeds numerous, plano compressed, foveolate.
Distribution from southern Florida through Mexico, Central America, the West Indies and South America.
Note There are about 16 species in the genus.
Reference Elias, T. 1976. A monograph of the genus Hamelia (Rubiaceae), Mem. New York Bot. Gard. 26(4): 81-144. Wernham, H. F. 1911. A Revision of the Genus Hamelia. Jour. Bot. London 49: 206-216.
Key a. Corolla funnel shaped, yellow (sect. Amphituba). b. Corolla tube 1.0-1.3 cm long; fruits 0.5-0.7 cm long ......1. H. axillaris bb. Corolla tube 1.8-5.0 cm long; fruits 7-16 mm long. c. Calycine lobes 3-5 mm long; stipules subulate ......2. H. calycosa cc. Calycine lobes 0.2-2.5 mm long; stipules triangular to ovate. d. Corolla tube 4-7 mm broad at the apex; inflorescence 10-25-flowered ...... 8. H. xerocarp a dd. Corolla 10-20 mm broad at the apex; inflorescence 4-15-flowered ...... 3. H. macrantha aa. Corolla tubular, yellow, orange or red (Sect. Hamelia). e. Lateral veins 3-5 pairs. f. Inflorescence a much reduced dichasium, flowers usually 2-5; leaves 0.8-2.8 (-4.8) cm broad ...... 7. H. sanguinea ff. Inflorescence a spreading dichasium or cyme, flowers 3-8; leaves 2-7 cm broad ...... 6. H. rovirosae ee. Lateral veins 5-11 pairs. g. Floral parts and leaves densely villous. h. Leaves with lateral veins 3-5 pairs; seeds 1.0-1.2 mm long ...... 6. H. rovirosae hh. Leaves with lateral veins 7-10 pairs; seeds 0.6-0.9 mm long ...... 5. H. patens gg. Floral parts and leaf undersides glabrous to puberulent. i. Flowers 12-15 mm long; leaves with 11-16 pairs of lateral veins; corolla yellow ...... 4. H. magnifolia ii. Flowers 15-25 mm long; leaves with 7-10 pairs of lateral veins; corolla yellow to red ...... 5. H. patens
 
 
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