
Key to identify the broad-leaved species of Hypericum present in Colombia 1. Leaves and stems glutinous ................................................................................................................................................................2 - Leaves and stems not glutinous..........................................................................................................................................................4 2. Old cork exfoliating in flakes or strips. Leaves densely crowned on the distalmost portions of the young shoots, pruinose; leaf blade broadly ovate, 4–8 mm long, pruinose, midvein prominulous, slightly conspicuous, higher order venation inconspicuous. Flowers sessile; sepals with five basal veins and obtuse apex; petals 8–12 mm long; ovary 2–3 mm long, the stigma not capitate. Restricted to high-Andean forests, subpáramos and páramos of the Perijá Massif, in the department of Cesar, and neighboring state of Zulia (Venezuela), at elevations between 2700 and 3400 m ........... Hypericum baccharoides Cuatrecasas (1959: 165), (Fig. 4A) - Old cork exfoliating irregularly. Leaves evenly distributed along the entire length of the shoots, not pruinose; leaf blade with midvein prominent, conspicuous, flanked by 2 or 3 pairs of conspicuous lateral veins. Flowers with pedicel 2–6 mm long; sepals with 7–13 basal veins and acute apex; petals 12–19 mm long; ovary 3–4 mm long, the stigma capitate. Páramos, subpáramos and open patches of Andean and high-Andean forests at elevations between (1700–)2500 and 4200 m, primarily in the Colombian Eastern Cordillera, in the departments of Boyacá, Cundinamarca, Meta, Norte de Santander, and Santander (with a few collections of H. mexicanum from the Central and Western cordilleras, in the departments of Antioquia and Valle del Cauca, respectively)..... ............................................................................................................................................................................................................3 3. Leaf blade narrowly obovate, with apex acute to acuminate. Flowers often solitary, each 2–4 cm in diam. at full anthesis; sepals with 9–13 basal veins; petals 14–19 × 10–12 mm; stamens 80–100 per flower; ovary 3.5–4 × 2.5–3.2 mm. Capsule subglobose, 5–6 × 4–5 mm. Páramos of the Colombian Eastern Cordillera, in the departments of Norte de Santander, Santander and Boyacá .. ............................................................................................................................. Hypericum gleasonii Robson (1987: 55), (Fig. 4E) - Leaf blade ovate to elliptic, with apex obtuse. Flowers usually arranged in compound dichasia with up to 7(9) flowers, each 1.5–2.2 cm in diam. at full anthesis; sepals with 7 basal veins; petals 12–14 × 4–9 mm; stamens 40–60 per flower; ovary 3–3.5 × 1.8–2.2 mm. Capsule ovoid, 6–9 × 4.5–6.5 mm. Páramos, subpáramos and open patches of Andean and high-Andean forests, mostly in the Colombian Eastern Cordillera (departments of Boyacá, Cundinamarca, Meta, Norte de Santander, and Santander), with a few collections from the Central and Western cordilleras (departments of Antioquia and Valle del Cauca). The species reaches the Andes of the states of Mérida and Táchira (Venezuela)................................... Hypericum mexicanum Linnaeus (1776: 5), (Fig. 4I) 4. Leaf midvein flanked by (1)2 to 5 pairs of basal or suprabasal, lateral veins that reach the distal third of the blade ...................... 5 - Leaf 1-veined or 3-veined and then the lateral veins suprabasal and not reaching the distal third portion of the blade .................11 5. Leaves not tetrastichous, when senescent always persistent and densely grouped along the proximal portions of the branch; blade muricate above and beneath, the midvein flanked by two suprabasal veins; sepals papillate ............................................................. ........................................................................................................................... Hypericum papillosum Robson (1987: 34), (Fig. 4J) - Leaves tetrastichous, when senescent usually deciduous (sometimes persistent but loosely arranged in H. magniflorum); blade not muricate, the midvein flanked by (1)2 to 4 pairs of suprabasal veins; sepals not papillate ...............................................................6 6. Leaves patent to reflexed, with the base sheathing and petiole 1.7–2 mm long. Flowers 3.5–4 cm in diam. at full anthesis; sepals with 11+ basal veins; petals 20–22 mm long; styles to 10 mm long. Northern range of the Colombian Eastern Cordillera, in the departments of Boyacá, Norte de Santander and Santander, and Venezuelan flank of the páramo of Tamá ....................................... ............................................................................................................... Hypericum magniflorum Cuatrecasas (1943: 64), (Fig. 4H) - Leaves ascending to patent, sessile or with petiole to 1.5 mm long, the base not sheathing. Flowers 0.8–3.1 cm in diam. at full anthesis; sepals with 3 to 9(11) basal veins; petals 8–20 mm long; styles 1.8–9 mm long. Sierra Nevada de Santa Marta or Andes of the department of Norte de Santander ............................................................................................................................................7 7. Pairs of leaves immediately below the flowers not reduced; flowers 2.0– 3.1 cm in diam. at full anthesis; styles 3 or 4. Species found in Sierra Nevada de Santa Marta or neighboring area between the departments of Cesar and Norte de Santander ................8 - Uppermost pair of leaves (immediately below the flowers) extremely reduced as lineariform bracts, each 6–9 × 0.8–1.2 mm, thus, flowers appearing bibracteate. Flowers 0.8–1.5 cm at full anthesis (rarely to 2.5 cm in H. stenopetalum, from the Colombian departments of Cesar, Norte de Santander and Santander, and adjacent states of Mérida and Táchira, Venezuela); styles always 3. Departments of Cesar, Norte de Santander and Santander, or Boyacá...............................................................................................9 8. Bark flaking irregularly. Leaves not tetrastichous, membranaceous or chartaceous, midvein flanked by one or two basal veins, higher order venation conspicuous, densely punctate glandular especially beneath, apex round; pedicel 4–7 mm long; sepals 6–10 × 2.4–3.5 mm, lanceolate to narrowly-elliptic, with 5 or 7 basal veins, apex obtuse to round; stamens ca 100; ovary 2.5–3.5 × 1.5–2.5 mm, ovoid, stigmas subcapitate. Restricted to páramos of the Sierra Nevada de Santa Marta .............................................. .............................................................................................................................. Hypericum simonsii Robson (1987: 34), (Fig. 4N) - Bark exfoliating in strips. Leaves tetrastichous, coriaceous, midvein flanked by two to five pairs of suprabasal veins, higher order veins inconspicuous, densely punctate-glandular especially above, apex acute. Pedicel 8–11 mm long; sepals 10–15 × 3–8 mm, oblong, with 7 or 9 basal veins, apex acute; stamens 50–90; ovary 3–4 × 2–3 mm, subglobose, stigmas capitate. Restricted to Andean and high-Andean thickets, and páramos of the neighboring area between the departments of Cesar and Norte de Santander ........... .................................................................. Hypericum pimeleoides Planch. & Linden ex Triana & Planchon (1862: 299), (Fig. 4K) 9. Shrubs 0.8–4 m tall. Leaves 8–10 × 3–4 mm; flowers 1.5–2.5 cm in diam. at full anthesis; sepals with 3 or 5 basal veins; petals narrowly obovate, 10–14 × 4–7 mm. Distributed in the departments of Cesar, Norte de Santander and Santander (Colombia), and adjacent states of Mérida and Táchira in Venezuela .......................... Hypericum stenopetalum Turczaninow (1858: 385), (Fig. 4O) - Herbs or subshrubs to 1.5 m tall. Leaves 10–20 × 3–10 mm.; flowers 0.8–1.5 cm in diam. at full anthesis; sepals with 5 or 7 basal veins; petals obovate to broadly obovate, 8–9 × 3.5–6 mm. Restricted to the department of Boyacá in Colombia ........................10 10. Herbs to 30 cm tall, with slightly basitonic and non-pseudodichotomous branching; stems densely punctate-glandular and muricate, glands protruding, dark; internodes 6–12 mm long; distalmost leaves gradually becoming larger than the proximal ones; leaves sessile, with the midvein flanked by three or four pairs of basal veins, all prominent on both sides and reaching the apical region of the blade densely punctate-glandular and muricate above and beneath, glands protruding, dark; flowers 8–12 mm in diam. at full anthesis; sepals muricate, (5)7-veined; petals broadly obovate, 6–7 mm wide, with 13 or 15 longitudinal veins, these conspicuous; stamens 70–80, 2.5–3.5 mm long; styles 1.8–2.5 mm long ........................................................... Hypericum boyacense (Figs. 1, 2) - Subshrubs 50–150 cm tall, with acrotonic, dichotomous branching; stems not punctate-glandular or muricate; leaves with whitish, non-protruding glands; internodes 2–5 mm long; leaves approximately the same size along the shoots, with petiole 1–1.5 mm long, elliptic to narrowly ovate, midvein flanked by two or three pairs of suprabasal veins that are prominulous and reach the distal third portion of the blade, except the outer pair that reaches only the mid-region, loosely punctate-glandular and not muricate especially beneath, glands not protruding, withish; fFlowers 12–15 mm in diam. at full anthesis; sepals not muricate, 5(7)-veined; petals obovate, 3.5–4.5 mm wide, with 5 or 7 inconspicuous, longitudinal veins; stamens 90–110, 3.5–5 mm long; styles 2.5–3.5 mm long................................................................................................................................................ Hypericum cymobrathys (Fig. 4D) 11. Leaves with petiole 2–5 mm long and apex acute............................................................................................................................12 - Leaves sessile or with petiole to 1.5 mm long and apex obtuse.......................................................................................................13 12. Leaf blade elliptic. Flowers 2.5–3 cm in diam. at full anthesis; sepals 10–14 × 3–6 mm; petals 13–16 mm long, apiculus acute; stamens 70–80, 6–8 mm long; ovary elipsoid, ca 4 × 2 mm; styles 4–6 mm long, stigmas subcapitate. High-Andean thickets, subpáramos and páramos of the departments of Cesar, Magdalena and Norte de Santander (Colombia)........................................... ............................................................................................................................ Hypericum jaramilloi Robson (1987: 86), (Fig. 4F) - Leaf blade ovate. Flowers 1.4–2.4 cm in diam. at full anthesis; sepals 5–10 × 1.5–3.5 mm; petals 8–12 mm long, apiculus obtuse; stamens 30–50, 3–4.5 mm long; ovary ovoid, ca 2 × 1.5 mm; styles 2.5–3.5 mm long, stigmas capitate. High-Andean forests, subpáramos and páramos of the three cordilleras, in the departments of Antioquia, Boyacá, Caldas, Cauca, Chocó, Cundinamarca, Huila, Meta, Nariño, Putumayo, Quindío, Tolima and Valle del Cauca (Colombia); Ecuador ............................................................ .................................................................................................................... Hypericum ruscoides Cuatrecasas (1943: 63), (Fig. 4M) 13. Low, compact shrubs to 30 cm tall. Internodes to 1.5 mm long. Leaf blade broadly ovate, 4.5–6 × 2.8–3 mm. Flowers sessile. Restricted to the departments of Norte de Santander and Santander (Colombia) ................................................................................ .................................................................................................................... Hypericum platyphyllum Gleason (1929: 106), (Fig. 4L) - Upright, loosely branched subshrubs or shrubs 0.5–1.5 m tall. Internodes 3–18 mm long. Leaf blade ovate, oblong or rarely elliptic, 8–22 × 2.5–11 mm. Pedicel 2–9 mm long. Sierra Nevada de Santa Marta and Perijá Massif, departments of Arauca, Boyacá, Casanare and Cundinamarca (Colombia; H. cardonae reaching also the departments of Norte de Santander and Santander); neighboring Andes of Mérida and Zulia (Venezuela).......................................................................................................................14 14. Leaves sessile. Flowers 2.5–3 cm in diam. at full anthesis; stamens 100–120 per flower; stigmas subcapitate. Sierra Nevada de Santa Marta and the Perija Massif (Colombia), and neighboring Andes of Mérida and Zulia (Venezuela) ........................................ ................................................................................................................... Hypericum magdalenicum Robson (1987: 63), (Fig. 4G) - Leaves with a persistent petiole to 1.5 mm long (rarely sessile in H. cardonae). Flowers 1–2.4 cm in diam. at full anthesis; stamens 38–80 per flower; stigmas capitate. Andes of the departments of Norte de Santander, Santander, Boyacá, Arauca, Casanare and Cundinamarca (Colombia); Venezuelan flank of the páramo de Tamá............................................................................................15 15. Axillary buds immediately below the terminal flower vestigial and suppressed. Flowers 15–24 mm in diam. at full anthesis; sepals with apex obtuse; petals 11–14 mm long, the apiculus acute. Andes of Norte de Santander, Arauca, Boyacá and Casanare (Colombia); Venezuelan flank of the páramo de Tamá ............................... Hypericum cardonae Cuatrecasas (1944: 62), (Fig. 4B) - Axillary buds immediately below the terminal flowers elongated and forming subsidiary, flowering shoots. Flowers 10–15 mm in diam. at full anthesis; sepals with apex acute; petals 6–11 mm long, the apiculus obtuse. Restricted to the Andes of Boyacá and Cundinamarca (Colombia) ..................................................... Hypericum chamaemyrtus Triana & Planchon (1862: 298), (Fig. 4C)
Published as part of González, Favio, 2025, Hypericum boyacense (Hypericaceae), a new broad-leaved species of the Eastern Cordillera of Colombia, with a key to identify the species of the group, pp. 292-300 in Phytotaxa 717 (3) on pages 298-299, DOI: 10.11646/phytotaxa.717.3.5, http://zenodo.org/record/18838011
Tracheophyta, Magnoliopsida, Malpighiales, Hypericaceae, Biodiversity, Plantae, Hypericum, Taxonomy
Tracheophyta, Magnoliopsida, Malpighiales, Hypericaceae, Biodiversity, Plantae, Hypericum, Taxonomy
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