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Araceae
Philodendron grenandii Croat
Nomenclature
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Family: AraceaeGenus: Philodendron
SUMMARY
Epiphyte, stems slender, elongate; internodes longer than broad, 7-10 mm diam., drying medium brown, smooth, matte, finely ribbed upon magnification; cataphylls weakly 2-ribbed, 7.3-10.4 cm long, drying red dish brown, remaining mostly intact, weathering partially to fibres near the base, finally deciduous. Leaves with petiole 12.3-20.5 cm long (averaging 16 cm), dry ing 2-3 mm in diam., sharply and broadly sulcate, drying darker than the blades, sheathed to about 2 cm at base but to 10-12 cm when subtending an inflorescence; blade 19.6-27.3 cm long, 5.3-9.9 cm wide, (averaging 23 7.9 cm) 2.9 longer than wide, 1.4 longer than the petiole, narrowly ovate to ovate-elliptic, asymmetrical with one side 0.9-1.3 cm wider, acuminate at apex, inequilateral and rounded to weakly subcordate at base, sometimes weakly decurrent onto petioles, dark green and matte above and lighter green underneath, drying yellowish to yellow; upper surface drying minutely granular upon magnification with a sparse array of short, pale, linear cellular inclusions; lower surface drying weakly glossy to matte with a dense array of somewhat darkened speckles; midrib flattened upon drying, some what raised on the upper surface, drying lighter than the blade on the lower surface; primary lateral veins 3-4 per side, arising at a 50 to 60o angle, curving upwards as they reach the margin; minor veins fine, close, moderate ly visible and weakly raised upon drying. Inflorescence with spathe 6.5-10.7 cm long, moderately constricted above the tube, tube 4.5 cm long, red on outside, blade white; spadix white; pistillate portion (post-anthesis) 3 cm long, 2.7 cm diam.; staminate portion 4.5 cm long, 1 cm diam.; sterile staminate portion c. 5 cm long, 1 cm wide; pistils 6.5-7.5 mm long, 3.2-3.6 mm diam., 5-6-locular, placentation axile, style weakly sunken at each division of the locules, stigma somewhat sunken, button-shaped, 1-1.2 mm diam., with 5-7 equidistant pits around its circumference; ovules 25-40 per locule, 1.3 mm long, the funicle 0.2 mm long.