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Project Name Data (Last Modified On 7/24/2013)

Flora Data (Last Modified On 7/24/2013)
Genus Vaccinium L.
PlaceOfPublication Sp. P1. 1: 349. 1753
Note LECTOTYPE: Vac- cinium myrtillus L.
Synonym Oxycoccus Hill, Brit. Herb. 324. 1756. TYPE: Vacciniumn oxycoccus L. Polycodium Raf., Amer. Monthly Mag. & Crit. Rev. 2: 266. 1818 and 4: 189. 1819. Batodendron Nutt., Trans. Amer. Philos. Soc. II. 8: 261. 1843. TYPE: B. arboreum (Mar- shall) Nutt. (= V. arboreum Marshall). Picrococcus Nutt., Trans. Amer. Philos. Soc. II. 8: 262. 1843. LECTOTYPE: P. stamineum (L.) Nutt. = Vaccinium stamineum L. Cyanococcus (A. Gray) Rydb., Fl. Rocky Mts. 645, 1065. 1917. TYPE: C. pensilvanicus (Lam.) Rydb. (pennsylvanicus) (= V. angustifolium Ait.). Herpothamnus Small, Man. S.E. Flora 1017. 1933. TYPE: H. crassifolius (Andr.) Small Vaccinium crassifolium Andr. Hugeria Small, Fl. S.E. U.S. 896. 1903. TYPE: Hugeria erythrocarpa (Michx.) Small (= Vaccinium erythrocarpum Michx.) Rhodococcum (Rupr.) Avorin, Bot. Zurn. SSSR. 43: 1721. 1958. TYPE: Rhodococcum vitis- idaea (L.) Avorin (= Vaccinium vitis-idaea L.).
Description Shrubs or rarely trees, often rhizomatous. Leaves persistent or deciduous, entire or serrate, pinnately veined or rarely plinerved; petioles short. Inflores- cences racemose, developing from the buds of the previous season, rarely only 1-2 flowered, the flowers borne in the axils of the bracts or the leaves; pedicels usually bibracteolate, either articulated or continuous. Flowers with the hy- panthium cylindric to globose; calyx lobes (4-)5, rarely obsolete; corolla gamo- petalous, white, greenish, red or yellowish, cylindric, urceolate or campanulate, the lobes 4-5, rarely parted almost to the base; stamens 8 or 10, the anthers lacking awns and with or without dorsal spurs, tapering upward into tubules and opening by a terminal pore or rarely an oblique cleft; pollen in tetrads and without viscin strands; stigma small, simple or somewhat capitate, the ovary completely or partly inferior, 4-5 (-falsely 10) -locular, the placentation axile. Berry 5 to many seeded, crowned by the persistent calyx lobes and capped by the conspicuous nectariferous disc.
Habit Shrubs or rarely trees
Distribution Vaccinium is a genus of perhaps 300 species primarily of the Northern Hemisphere, mostly montane in the tropics.
Note The genus as usually interpreted is diverse and this diversity is amply exhibited by the few representatives found in Central America.
Reference Sleumer, H. 1936. Die Arten der Gattung Vaccinium L. in Zentral und Sud- amerika. Notizbl. Bot. Gart. Berlin-Dahlem 13: 111-140. Standley, P. C. 1920-26. Trees and shrubs of Mexico. Contr. U.S. Natl. Herb. 23: 1-1721.
Key a. Leaves crenate serrulate; corolla white or white tinged with pink or red; flowers borne in a secund raceme; anthers spurred; calyx and corolla lobes 4 ...... 1. V. consanguineum aa. Leaves entire; corolla reddish or pale greenish yellow; flowers solitary in the axils of the leaves or borne in an umbelliform cluster; anthers spurless; calyx and corolla lobes 4 or 5. b. Corolla 4-lobed, red or reddish purple; stamens 8; shrublets creeping, vinelike, closely clasping the bark; hypanthium and pedicel continuous (nonarticulate); flowers solitary ...... 2. V. dissimile bb. Corolla 5-lobed, mostly pale greenish yellow to yellow but often tinged with pink; stamens 10; erect shrubs or trees, or, if epiphytic, neither creeping nor closely clasping the bark; hypanthium and pedicels jointed (articulate); flowers in corymbose or umbellate racemes. c. Calyx lobes 5-6 mm long; principal veins of leaves moderately spreading hirsute beneath; hypanthium and calyx lobes both hirsute and with glan- dular, capitate protuberances ...... 4. V. jefense cc. Calyx lobes 4 mm or less long; principal veins of leaves at most puberulent or glandular strigillose beneath; hypanthium and calyx lobes glabrous to inconspicuously puberulous. d. Calyx lobes 2-3.5 mm long; staminal tubules ca. 1 mm long ...... 3. V. floccosum dd. Calyx lobes 1 mm long or less; staminal tubules 3 mm long or longer. e. Staminal tubules 3.5-5.5 mm long, each dehiscing by a terminal truncate or slightly inwardly facing pore; Chiriqui ...... 5. V. poasanum ee. Staminal tubules 3.0-3.2 mm long, each dehiscing by a lateral cleft 2-2.5 mm long; Veragnas ...... 6. V. santafeensis
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