Philodendron basii Matuda
  • Anales Inst. Biol. Univ. Nac. México 32: 153 (1962) 

Notes: Distribution: Mexico (Guerrero, Jalisco)

General Description

Almost always terrestrial, or trailing over rocks; stem green, stout, succulent, leaf scars conspicuous, 2--4 cm long, 4--5 cm wide; internodes 1--4 cm long, 2.5--7 cm diam., broader than long, drying olive-green, epidermis peeling, light brownish, roots long, 5 mm diam., light reddish tan; cataphylls 20--28 cm long, weakly to sharply 2-ribbed, medium green with darker ribsand dark green speckles in lower one-half of cataphyll, drying tannish, persisting intact, eventually deciduous; LEAVES: petioles 22--70 cm long, 8--15 mm diam., terete, medium green, surface dark striate; blades ovate-cordate, drying moderately thin, weakly bicolorous, semiglossy, acute at apex, cordate at base, 16--56 cm long, 9--38 cm wide (1.5--1.8 times longer than wide), (0.7--0.9 times the petiole length), broadest at or above middle; upper surface medium green, weakly glossy, drying medium yellow-brown;, lower surface slightly paler, semiglossy, drying yellow-green to yellow-brown; margins sinuate or weakly undulate; anterior lobe 35--48 cm long, 37.5--46 cm wide (2.5--8.5 times longer than posterior lobes); posterior lobes 4--19 cm long, 18--23 cm wide, directed inward, rounded to obtuse at apex; sinus spathulate, 10--13 cm deep; midrib weakly sunken to flat, heavily dark green striate, paler than surface above, convex, sparsely dark-lineate, paler than surface below; basal veins 3--6 per side, with 1 pair free to base, the third through fifth coalesced 3--3.5(4) cm; posterior rib naked for 1--2.5 cm; primary lateral veins 4--7 per side, departing midrib at a 40--60ºangle, more or less straight to the margins, sunken and paler than surface above, convex and paler than surface below; interprimary veins sunken and concolorous above, flat and darker than surface below; branches of primary lateral veins more or less ruffled-sunken and concolorous above, raised and paler than surface below; minor veins predominately arising from the primary lateral veins, those arising from the midrib seem to disappear soon after leaving the midrib. INFLORESCENCES probably 1 per axil; peduncle 7--8 cm long, 7--8 mm diam., green; spathe 12.6--13.7 cm long, (1.7--1.8 times longer than peduncle), apiculate at apex; spathe blade pale green or white, tinged red near base outside, 8 cm long, white tinged with red near base, pale-speckled inside; spathe tube ellipsoid, dark green outside, 6 cm long, 3 cm diam., maroon-red (B & K Red-Purple 10/3) inside, spadix sessile; tapered, 11.8--12 cm long, broadest at the base; pistillate portion cylindrical, 2.5--3.8 cm long, 1.5--1.9 cm diam. midway, slightly narrower on both ends; staminate portion 7.6--13 cm long; fertile staminate portion clavate, 9--15 mm diam. at base, 11--15 mm diam. at middle, 5--10 mm diam. ca. 1 cm from apex, broadest above the middle, narrower than the pistillate portion, broader than the sterile portion; sterile staminate portion narrower than the pistillate portion, 1--1.8 cm diam.; pistils 2.9--3.9(5.7) mm long, 1.4--2 mm diam.; ovary 4--6-locular, 2 mm long, 1.4 mm diam., with sub-basal placentation; ovules 4--6 per locule, 2--3-seriate, contained within transparent ovule sac, 0.3 mm long, equal in length to funicle, style similar to style type D; style apex rounded, with style boss and with depressions surrounding stylar canal exits; style boss narrow but pronounced; stigma slightly discoid to hemispheroid, 1.6--2.2 mm diam., 0.6--1.4 mm high, covering almost entire style apex; the androecium 4--6 sided; thecae oblong, 0.3 mm wide; sterile staminate flowers 4--6-sided, 1.7 mm long, 0.9--1.6 mm wide. JUVENILE leaves more or less sagittate at base.


Bosque Pino-Encino and "Selva Baja Caducifolia."


Endemic to Mexico, ranging from western Jalisco, south and east to the states of Colima, México and Guerrero.

Distribution Map

  • Native distribution
Found in
  • Northern America Mexico Mexico Central (Doubtful)
  • Mexico Southwest


  • 1 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.
  • 2 Croat, T.Bernard A revision of Philodendron subgenus Philodendron (Araceae) for Mexico and Central America Ann. Missouri Bot. Gard. 84, (1997).

 Information From

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