Philodendron lupinum E.G.Gonç. & J.B.Carvalho
  • Aroideana 31: 85 (2008) 


Notes: Distribution: Brazil (Acre)

General Description

Hemiepiphytic or scandent herb, appressed-climbing. Stems covered by semi-intact dry prophylls; internodes 1-2 x 2-4 cm, slightly flattened against the substrate. Leaves: prophylls marcescent, weakly two-keeled, persisting dry and semi-intact, 15-25 cm long; petioles 35-46 x .5-1.7 cm, slightly flattened adaxially, green, covered by minute lenticellae arranged in intermittent lines; sheath up to 2 cm long; leaf blade sagittate-hastate in outline, overall dimensions 33-45 x 20-24 cm, fresh leaves medium glossy green adaxially, paler and matte abaxially; anterior division panduriform, 26-29 x 9-10 cm, primary lateral veins 7-9 per side, arising at a 70-90° angle, interprimary almost as thick as primary, apex long acuminated, acumen 1-1.2 cm; posterior divisions 10-17 x 6-7 cm, posterior lobes oblique, elliptic to ovate, apex obtuse, basioscopic side 4-5 cm wide, acroscopic side 1-2 cm wide, basal rib denudated for 3-4 cm. Inflorescences usually in pairs; peduncles 2-3 x .7-1 cm; spathe 8-8.7 cm long; tube green with white dots forming intermittent lines outside, usually tinged in burgundy, whitish inside, 4.5-5.5 x 2-3 cm, lamina green with whitish stripes outside, sometimes tinged with burgundy, whitish inside, 3.5-4 x 2-2.5 cm; spadix shorter than spathe, 5-8 cm long, fertile male portion 3-4 x .8-1.2 cm, producing abundant drops of an ochre resin, rounded to obtuse at apex, sterile male portion .3-.5 x 1-1.3 cm, female portion 3-3.2 x 1.2-1.6 cm. Flowers: male flowers 4-5-andric, prismatic, 1-1.7 x .5 mm; staminodes clavate 1-2 x .5-1 mm; gynoecium ovoid, 1.5-2.5 mm long, stigma c. 1.2 mm diam., ovary 1.5 mm diam., 4-5 locules, each locule with 6-8 ovules attached along the main axis, funicles shorter than the ovules, with inconspicuous short trichomes at base. Berries unknown.

Habitat

Philodendron lupinum is an appressed-climbing hemiepiphyte and was found in a small fragment of "Terra Firme" forest.

Distribution

The new species is so far known only from the type locality. However, the knowledge on Amazonian species is far from complete, so its rarity may be an artifact of collection.

Distribution Map

 
  • Native distribution
Found in
  • Southern America Brazil Brazil North

  Bibliography

  • 1 Govaerts, R.H.A. (2011). World checklist of selected plant families published update. Facilitated by the Trustees of the Royal Botanic Gardens, Kew.
  • 2 Goncalves, E.G. & de Carvalho, J.Barros Philodendron lupinum - A New species of Araceae from Northwestern Brazil. Aroideana; Journal of the International Aroid Society 31, 89 (2008).

 Information From

CATE Araceae
http://araceae.e-monocot.org
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, 14 Dec 2011 . 17 Dec 2011.
  • A All Rights Reserved
eMonocot
http://e-monocot.org
eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from http://e-monocot.org.
  • B Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
World Checklist of Selected Plant Families
http://apps.kew.org/wcsp/
WCSP 2014. 'World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://apps.kew.org/wcsp/ Retrieved 2011 onwards
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