Procris crenata C.B.Rob.

First published in Philipp. J. Sci., C 5: 507 (1910 publ. 1911)
This species is accepted
The native range of this species is Tropical Africa, Madagascar, Indian Subcontinent to S. China and Philippines. It is an epiphytic subshrub and grows primarily in the wet tropical biome.

Descriptions

Urticaceae, Hutchinson and Dalziel. Flora of West Tropical Africa 1:2. 1958

Morphology General Habit
An epiphyte with glabrous succulent stems up to 18 in. high and 1/2–1 in. thick in the lower part.
[FWTA]

Urticaceae, I. Friis. Flora Zambesiaca 9:6. 1991

Morphology General Habit
Perennial monoecious herbs, from short, thick, prostrate, ± thickened rhizomes.
Morphology Stem
Stems succulent, usually unbranched, up to c. 40(50) cm. tall, 1–2 cm. in diam. when fresh, shrinking to 4–5 mm. when dry.
Morphology Leaves
Leaves opposite and heteromorphous with the reduced leaves of heteromorphous pairs soon falling, usually concentrated in the upper half of the stem, petiolate; lamina up to 12 x 3 cm., somewhat asymmetrical around the midnerve, base asymmetrically cuneate, margin serrate, apex long acuminate, glabrous on both sides, lateral nerves 6–10 on either side of the midnerve.
Morphology Leaves Petiole
Petioles 2–4 mm. long.
Morphology Leaves Stipules
Stipules fused, intrapetiolar, 1–3 mm. long.
Morphology Reproductive morphology Inflorescences
Inflorescences in the axils of current or fallen leaves, pedunculate. Male inflorescences rather rare, usually on the lower part of the plant;peduncles 5–10 mm. long, thin; receptacle small, fleshy, with 3–10 male flowers on 1–3 mm. long pedicels; male flowers (4)5-merous, with corniculate tepals, stamens equalling the tepals in number, ovary rudimentary. Female inflorescences in the upper leaf-axils, on rather stout peduncles, 2–6 mm. long; receptacle fleshy with 20–50 sessile female flowers; female perianth of (4)5 short, broadly ovate tepals, these covering the lower part of the erect, symmetrical, ovoid ovary which is crowned by a penicillate stigma.
sex Male
Male inflorescences rather rare, usually on the lower part of the plant;peduncles 5–10 mm. long, thin; receptacle small, fleshy, with 3–10 male flowers on 1–3 mm. long pedicels; male flowers (4)5-merous, with corniculate tepals, stamens equalling the tepals in number, ovary rudimentary.
sex Female
Female inflorescences in the upper leaf-axils, on rather stout peduncles, 2–6 mm. long; receptacle fleshy with 20–50 sessile female flowers; female perianth of (4)5 short, broadly ovate tepals, these covering the lower part of the erect, symmetrical, ovoid ovary which is crowned by a penicillate stigma.
Morphology Reproductive morphology Fruits
Achene 1–1.5 mm. long, surrounded at the base by the persistent perianth.
[FZ]

Urticaceae, I. Friis University of Copenhagen, Denmark. Flora of Tropical East Africa. 1989

Morphology General Habit
Perennial herbaceous plants with short, thick and fleshy rhizomatous part, 2 cm. in diameter or more; reported to be monoecious, but no material to confirm this has been seen.
Morphology Stem
Stems fleshy, 1–2 cm. thick when fresh, but shrinking to 4–5 mm. when dry, glabrous, unbranched, arising from the thick rhizomes, reaching a height of 50 cm. or more.
Morphology Leaves
Leaves of a pair very unequal, soon falling, the smaller one usually long before the larger one; stipules completely fused, broadly triangular, 1–2 mm. long, obtuse; petiole very short, rarely up to 5 mm. long, passing gradually into the cuneate leaf-base; lamina lanceolate to oblanceolate, widest near or slightly above the middle, slightly asymmetrical, small leaves usually less than 0.8 cm. long and 0.2 m. wide, large leaves 7–15 cm. long, 1–2.5 cm. wide, base long-cuneate, slightly asymmetrical, margin serrate to crenate, rarely subentire, with up to ± 8 poorly marked teeth or crenations, apex long acuminate; lateral nerves in 6–10 pairs, not opposite, almost equally strongly developed; glabrous on both sides, cystoliths elongate, visible on both sides.
Morphology Reproductive morphology Inflorescences
Male inflorescences (rare in herbarium material and not seen from Flora area) consist of a single few-flowered cluster, up to 0.5 cm. in diameter, on a peduncle 8–10 mm. long; ♀ inflorescences consist of clusters on peduncles 1–5 mm. long, 1–2 mm. thick, each cluster 2–4 mm. in diameter.
sex Male
Male flowers on pedicels 1–2 mm. long; perianth ± 1 mm. in diameter, (4–)5-merous, with corniculate tepals.
Morphology Reproductive morphology Flowers
Female flowers sessile; perianth 4–5-merous, tepals subequal, persistent; ovary erect, with a sessile penicillate stigma. Male flowers on pedicels 1–2 mm. long; perianth ± 1 mm. in diameter, (4–)5-merous, with corniculate tepals.
sex Female
Female flowers sessile; perianth 4–5-merous, tepals subequal, persistent; ovary erect, with a sessile penicillate stigma.
Morphology Reproductive morphology Fruits
Achene ovoid, hardly compressed, ± 1 mm. long, partly enclosed in the persistent perianth.
Figures
Fig. 11.
Habitat
In rain-forest at low or medium altitude, epiphyte on trunks and larger branches in deep shade, less common on the ground or epilithic; 800–1900 m.
Distribution
T3 T6 T7 U2 U4 tropical Asia from India as far as the Philippines
[FTEA]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0
  • Flora Zambesiaca

    • Flora Zambesiaca
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Flora of Tropical East Africa

    • Flora of Tropical East Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Flora of West Tropical Africa

    • Flora of West Tropical Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Herbarium Catalogue Specimens

    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Science Photographs

    • Copyright applied to individual images