Genus:
Callicarpa L.

Callicarpa longipetiolata Merr.

This species is accepted, and its native range is Philippines (Luzon).

[KBu]

Bramley, G.L.C. 2013. The genus Callicarpa (Lamiaceae) in the Philippines. Kew Bulletin 68: 369. https://doi.org/10.1007/s12225-013-9456-y

Conservation
Based on seven collections from five localities (including only those that could be georeferenced), the AOO for Callicarpa longipetiolata is 60 km2. The species is found in the Cordillera Central of Luzon at altitudes greater than 2000 m, and has also been collected once from Rizal Province, from Mt Lumutan (I cannot locate this mountain and have been unable to include it on the distribution map and conservation assessment). I have found evidence that habitat in other areas in the Cordillera Central such as Mount Pulog National Park (BirdLife International 2010d) is threatened by locals clearing land for cultivation. On the one hand areas such as Mt Santo Tomas, which is not protected by National Park status, may be at a greater risk of habitat loss, but on the other hand the montane forest that C. longipetiolata inhabits may be unsuitable for cultivation, reducing the risk of habitat loss. Taking these factors into consideration, and the fact that it may still occur on the unlocated Mt Lumutan (which would increase the AOO), I propose a preliminary conservation assessment of Endangered (EN) (B2ab(iii)).
Distribution
Philippines: Luzon: Benguet and Mountain provinces: Mt Santo Tomas and Baguio. Map 4.
Ecology
In forests: edge of high montane forest 2145 m.
Morphology General Habit
Shrub or tree to 6 to 7 m (Merrill 1905)
Morphology Leaves
Leaves opposite, petiolate blades narrowly ovate to narrowly elliptic, 4.5 – 9 × 1.5 – 4 cm, margins ± entire, apex acute to shortly acuminate, base asymmetric, acute to rounded, upper surface with a dense covering of brownish plumose hairs when young, these apparently rubbing away, some hairs remaining in older leaves especially along the sunken midrib and secondary nerve pairs, lower surface appearing paler, the surface obscured by interwoven branched hairs, the venation raised petioles 7 – 20 mm, indumentum as stems
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 4, filaments c. 3 mm long, exserted 1 – 1.5 mm, arising c. 0.5 mm from the base of the corolla tube, anthers elliptic, c. 1 mm long with numerous yellow sessile glands where they attach to the connective, dehiscing through longitudinal slits
Morphology Reproductive morphology Flowers Calyx
Calyx cupular, 1.5 – 2 mm long with 4 triangular lobes, outer surface with plumose hairs, these so dense the surface obscured, inner surface glabrous
Morphology Reproductive morphology Flowers Corolla
Corolla c. 3 mm long, divided into 4 rounded lobes c. 1 mm long, the edges fringed with papillae, outer surface with dense branched hairs along the centre of the lobes, the rest of the tube glabrous, inner surface ± glabrous
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary with branched hairs when immature
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigma capitate, c. 1 mm wide, surface glandular
Morphology Reproductive morphology Fruits
Fruit not seen when mature, 3 mm wide (on dry specimen), glabrous, with yellow sessile glands, subtended by calyx 4 1-seeded locules breaking up into 4 1-seeded pyrenes.
Morphology Reproductive morphology Inflorescences
Inflorescence axillary, peduncles 16 – 35 mm long, the internal axes becoming consistently shorter, the flowers congested in compact almost globose heads, indumentum as stem bracts linear to very narrowly ovate, 3 – 5 mm long, indumentum as stems pedicels not easily visible, flowers ± sessile bracteoles linear to very narrowly ovate, 1 – 4 mm long
Morphology Stem
Stems with a dense indumentum of erect plumose hairs, obscuring the surface, apparently rubbing away as the stems become woodier, lenticels developing an interpetiolar ridge present
Note
Apparently endemic to high altitude forest, Callicarpa longipetiolata bears similar adaptations to other high altitude species such as C. kinabaluensis (Borneo): the inflorescence is congested into more or less globose heads, and the leaves are thick, with a dense indumentum. C. longipetiolata was reduced to a variety of C. tomentosa (sensu Lam & Bakh.) by Lam & Bakhuizen (1921) [= C. arborea Roxb.] — it clearly does not belong here. Although the general indumentum is similar, the inflorescence structure and vegetative characters are completely different.
Type
Type: Philippines, Luzon, Benguet, Mt Santo Tomas, [16°20'N 120°33'E], May 1904, A. D. E. Elmer 6266 (lectotype K, selected here isolectotype NY).

Native to:

Philippines

Callicarpa longipetiolata Merr. appears in other Kew resources:

First published in Philipp. Gov. Lab. Bur. Bull. 29: 47 (1904)

Accepted by

  • Bramley, G.L.C. (2013). The genus Callicarpa (Lamiaceae) in the Philippines Kew Bulletin 68: 369-418.
  • Bramley, G.L.C. (2019). Flora Malesiana 23: 1-444. Noordhoff-Kolff N.V., Djakarta.
  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.
  • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.

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  • Bramley, G.L.C. (2013). The genus Callicarpa (Lamiaceae) in the Philippines Kew Bulletin 68: 369-418.

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  • Kew Bulletin

    Kew Bulletin
    http://creativecommons.org/licenses/by-nc-sa/3.0

  • Kew Names and Taxonomic Backbone

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0