Genus:
Callicarpa L.

Callicarpa platyphylla Merr.

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

[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
The material seen of Callicarpa platyphylla suggests a distribution in the Northern Sierra Madre Mountains on the mainland of Luzon, and the Polillo Islands, further south and off the coast of Luzon. This falls within the Luzon rainforests ecoregion described by the World Wildlife Fund (WWF 2011a Wikramanayake et al. 2002). In 2001, a Flora and Fauna International project carried out ecological surveys on Polillo they concluded that only 16% of the island remains forested (http://polillo.mampam.com/index.htm). A later statement that no forest remains on Polillo has been made by the World Wildlife Fund (WWF 2011a): clearly there is a threat to the lowland forest habitat of C. platyphylla in this area. However, the Northern Sierra Madre Mountains area around Palanan, from where C. platyphylla was recorded in 1991, is in a National Park. The AOO of C. platyphylla supports a conservation status of Least Concern (LC), but the EOO supports possibly Near Threatened (NT). I argue that based on the apparent loss of forest habitat in the Polillo Islands, NT is an appropriate category although the Northern Sierra Madre mountains area is a National Park, land at lower altitudes such as that where this species is found (30 – 50 m), is often at greater risk of habitat destruction for agricultural purposes.
Distribution
Philippines Polillo Islands and Isabela Province of Luzon (Sierra Madre mountains). Map 6.
Ecology
In forests at low altitudes 30 – 50 m.
Morphology General Habit
Tree to 14 m, diam. to 20 cm
Morphology Leaves
Leaves opposite, sometimes pairs subequal, petiolate blades elliptic to broadly elliptic, 21 – 30 × 9 – 18 cm, margins entire or shallowly dentate, apex shortly acuminate, base shortly attenuate, forming a slight wing down the petioles, or markedly asymmetric, upper surface ± glabrous, lower surface appearing paler, with a dense appressed indumentum of pale interwoven hairs obscuring the surface, individual hairs not visible to the naked eye, the venation raised, the larger veins with some appressed hair, peltate scales scattered either side of midrib and the larger veins petioles 3 – 6.5, indumentum as stems
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens seen in bud only, anthers c. 1.5 mm long
Morphology Reproductive morphology Flowers Calyx
Calyx cupular, c. 1.5 mm long, ± truncate or with 4 slight lobes barely visible, marked by veins running down the tube from tiny tips, outer surface with some branched hairs especially around the base near the top of the pedicel, inner surface glabrous
Morphology Reproductive morphology Flowers Corolla
Corolla greenish yellow (Co 3464), seen in bud only (Castro PNH6496), 2.5 – 3 mm long, divided into 4 lobes, the edges and outer surfaces fringed with papillae, otherwise outer surface glabrous, inner surface ± glabrous
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigma seen in bud only, capitate
Morphology Reproductive morphology Fruits
Fruit not seen.
Morphology Reproductive morphology Inflorescences
Inflorescence axillary, peduncles 0.5 (in tight bud) – 3 cm long, indumentum as stem bracts not seen clearly pedicels c. 1 mm long bracteoles linear, 1 – 3 mm long
Morphology Stem
Stems woody and quadrangular when mature, lenticellate, some remains of an appressed brownish indumentum of branched hairs present, younger stems not seen distinct ridges resembling stipule scars visible between the petioles
Note
The large leaves and indumentum distinguish Callicarpa platyphylla from the other species of Callicarpa in the Philippines. On drying, the lower leaf surface is conspicuously pale, and to the naked eye appears glabrous but, when magnified, a layer of interwoven hairs, matted and appressed to the surface is apparent. I have not seen this species in fruit.
Type
Type: Luzon, Cagayan Prov., Pamplona, 50 m, 9 Aug. 1917, V. Velasco [Field No. 92] For. Bur. 26967 (lectotype A, selected here isolectotype US (scanned image seen)).

Native to:

Philippines

Callicarpa platyphylla Merr. appears in other Kew resources:

First published in Philipp. J. Sci., C 13: 57 (1918)

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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Kew Backbone Distributions

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

  • Kew Backbone Distributions

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    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

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  • 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