Family:
Araceae Juss.
Genus:
Arum L.

Arum apulum (Carano) P.C.Boyce

This species is accepted, and its native range is SE. Italy (Gioia del Colle).

[CATE]

CATE Araceae, 17 Dec 2011. araceae.e-monocot.org

General Description
Tuberous herb sprouting in late autumn from a discoid, vertically orientated tuber 4-6 cm across, 2-2.5 cm thick. Petiole terete, 12-34 cm long, 2-4.5 mm wide, dull green, stained with purple for c. ¼ of its length. Leaf- blade hastate-sagittate, apex subacute, 8-16 cm long, 5-13 cm wide, deep green. INFLORESCENCE smelling very weakly of horse dung and urine. Peduncle much shorter than the leaves, terete, 4-11 cm long, 3-5 mm wide, dull purple. Spathe 12-18 cm long; spathe-tube oblong-ellipsoid, 4-4.5 cm long, 1.5-2 cm wide, constricted apically, exterior mid-green, interior purple, paler towards the apex; spathe-limb oblong-lanceolate, 7-10.5 cm long, 3-5 cm wide, erect, acuminate, externally purplish green, green towards the margin, internally dark purple, the margin and apex mid-green. Spadix c. ? as long as the spathe-limb, 4-6 cm in total length; appendix slender-clavate, long-stipitate , 3-4 cm long, 3-5 mm wide, purple, stipe reddish purple. Staminodes in 3 or 4 whorls, forming a zone 3-4 mm long; bristles filiform, flexuous, 3-3.5 mm long, purplish cream; bases compressed conic, verrucate, cream. Interstices: upper 3.5-4 mm long, longitudinally ridged, cream; lower 2-3 mm long, ± smooth, cream. Staminate flowers in an oblong zone 2.5-3 mm long, 5-5.5 mm wide; anthers purple and connectives cream. Pistillodes in 1 or 2 whorls forming a zone 1.5-2 mm long; bristles filiform, flexuous, 3-7 mm long, purplish cream; bases bulbiform, verrucate, cream. Pistillate flowers in an oblong-cylindric cluster 7-11 mm long, 5-7 mm wide; ovaries oblong, truncate apically, 2.5-3.5 mm long, pale lime-green; stigma purple. Fruiting spike oblong-cylindric, 3-5 cm long, 2-2.5 cm wide; berries oblong-pyriform, 5-9 mm long, 4-6 mm wide. Germination unknown.
Habitat
Low scrub on terra rossa.
Diagnostic
Inflorescence borne beneath the leaves. Numerous filiform staminodes and pistillodes, slender long-stipitate spadix-appendix, pale purple and green spathe-limb. (similar to Arum nigrum and Arum orientale )
Phenology
Flowering in April.
Distribution
S Italy (Puglia, only known from Gioia del Colle).

Native to:

Italy

Arum apulum (Carano) P.C.Boyce appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
Drummond [s.n.], Italy 57572.000 No
59242.000 No
Drummond, D.C. [s.n.], Italy K000203272 Yes
Drummond, D.C. [s.n.], Italy K000203274 Yes
Drummond, D.C. [s.n.], Italy K000203273 Yes

First published in Gen. Arum: 104 (1993)

Accepted by

  • Govaerts, R. & Frodin, D.G. (2002). World Checklist and Bibliography of Araceae (and Acoraceae): 1-560. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.

  • CATE Araceae

    Haigh, A., Clark, B., Reynolds, L., Mayo, S.J., Croat, T.B., Lay, L., Boyce, P.C., Mora, M., Bogner, J., Sellaro, M., Wong, S.Y., Kostelac, C., Grayum, M.H., Keating, R.C., Ruckert, G., Naylor, M.F. and Hay, A., CATE Araceae, 17 Dec 2011.
    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 Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/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

  • Kew Science Photographs

    Copyright applied to individual images