The Endemic Plants of Chile

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Escalloniaceae

Rayenia malalcurensis Menegoz & A.E. Villarroel

Place of Publication

Phytotaxa 484 (1): 103 (figs. 3-4) (2021)

Type citation

CHILE. Ñuble Region, Punilla Province, San Fabián de Alico, Cordillera del Malalcura, crevices of granite rocks, 1747 m elevation, 36°31’56.03” S, 71°30’14.02” W, 11 October 2018, K. Menegoz, G. Ossa & J.C. Covarrubias 121, (holotype SGO!; isotypes CONC!, ULS!, VALD!, E!).

References

  • Villarroel et al. (2021)

    Villarroel, A E , Menegoz, K and Lavandero, N 2021. Rayenia malalcurensis (Escalloniaceae), a new genus and species endemic to Central Chile. Phytotaxa 484 (1): 96–112

Iconography

  • Villarroel et al. (2021):

Regions

Ñuble

Habitat

Temperate Forests and Deciduous forest

Distribution and habitat

Limited to the eastern Andean ranges in the locality of San Fabián de Alico, Punilla Province, Ñuble Region, Chile. Five sites are known: two of them are located in the Cordillera del Malalcura, two in the Valle del Estero Bullileo, and one near to Laguna Añil. This species usually grows at high elevations (1270–1900 m), in crevices and small terraces of south-southwest facing granite rocks. The most abundant associated species are Chusquea montana, Empetrum rubrum, Eucryphia glutinosa, Gaultheria poeppigii, G. tenuifolia, Haplopappus spp., Myrteola nummularia, Nothofagus obliqua, N. pumilio and Orites myrtoidea (Villarroel et al., 2021).

Conservation status

  • Critically Endangered (CR)B1ab(iii); C2a(ii). (Villarroel et al. (2021))

Descriptions

  • Villarroel et al. (2021)

Habit

Creeping subshrub, 5–20 cm tall. Flowering from end of September to November; fruiting from November to January

Key characteristics

Rayenia malalcurensis is similar to Tribeles australis, but differences include: mucronate leaf apex (vs. tridentate), finely serrate leaf margin and with long coarse hairs (vs. entire), sepals free (vs. united at base) and pink petals (vs. white).