Philodendron simonianum Sakur.
  • Novon 11: 103 (2001) 


Notes: Distribution: Brazil (São Paulo: Pouso Alto)

General Description

Hemi-epiphytic, scandent vine. Stem: green apex becoming greyish-brown in the mature parts, internodes 2-4 cm long. Prophyll 20-23 x 3 cm, narrowly triangular, green to greenish-cream to entirely cream, becoming brown. LEAVES: Petiole 27-39 cm long. Leaf blade 36-42 x 14-20 cm, ovate to ovate-triangular, apex acuminate, base sagittate, distinctly paler on lower surface, chartaceous to subcoriaceous; anterior division 27-40 x 14-23 cm, primary lateral veins 3-4 per side; posterior divisions 7-10.5 x 7-12 cm, acroscopic veins 0-2, basiscopic vein 1 per side; basal veins 1-3, none free to base; posterior rib not naked. INFLORESCENCE: 3-4 per floral sympodium, peduncle 4-8 cm long, green to greenish-grey. Spathe 12-13.5 x 2-2.6 cm, narrowly ovate, not constricted, reflexed during anthesis, green becoming white outside, white with vinaceous base inside. Spadix 13-14 cm long, male zone 3.2-4 cm long, cream; intermediate male sterile zone 0.5-0.6 cm long, cream; apical male sterile zone 4-5 cm long, very narrow at the end, cream; female zone 4-5 cm long, greenish. Flowers: stamens 0.8-2 x 0.7-1.2 mm; apical staminodes 1-2 x 0.8-1.2 mm; intermediate staminodes 1.8-2.3 x 0.8-1.5 mm; gynoecium 1.2-2 x 1-1.8 mm, cilindrical, ovary 9-11-locular, ovules 4-5 per locule, placentation sub-basal. INFRUCTESCENCE: Berries not seen.

Habitat

Hemi-epiphytic in humid and shaded places in tropical forest.

Distribution

Brazil. Endemic from Pouso Alto, São Paulo.

Conservation

Critically Endangered (CR), B1, a, b (i, iii); extent of occurence < 100 km2. Only known from the type locality and its habitat is under pressure from deforestation, road building and agricultural and urban development. It has not been recorded in any protected area.

Distribution Map

 
  • Native distribution
Found in
  • Southern America Brazil Brazil Southeast

  Bibliography

  • 1 Giulietti & al. (2009). Plantas raras do Brasil: 1-496. Conservação International, Belo Horizonte, MG.
  • 2 Sakuragui, C.M., Mayo, S.J. & Zappi, D.C. (2005). Taxonomic revision of Brazilian species of Philodendron. Kew Bulletin 60: 465-513.
  • 3 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.
  • 4 Sakuragui, C.M., Mayo, S.Joseph & Zappi, D.C. Taxonomic revision of Brazilian species of Philodendron section Macrobelium Kew Bull. 60, (2005).

 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.
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eMonocot
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eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from http://e-monocot.org.
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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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