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Araceae
Philodendron cardonii Croat
SUMMARY
Hemiepiphyte or epiphyte; internodes ± terete, (1.5–)6–12 cm long, 1–2.5 cm diam., medium green and weakly glossy, becoming light yellow-brown and semiglossy; cataphylls to 20 cm long, medium green, semiglossy, sharply 1-ribbed below middle, sharply 2-ribbed toward apex, prominently purple-spotted at base, deciduous. Leaves spreading; petiole thicker than broad, narrowly rounded abaxially, sharply and deeply sulcate above sheath, 11–48 cm long, sheathed 9–17.5 cm, medium green, weakly glossy, matte and dark green short-lineate toward apex, weakly glossy and purple-spotted near base; blade narrowly ovate-elliptic, tapering towards the apex and ending with a short acumen, truncate at the base with the larger leaves becoming sagittate, 21–48 cm long, 7.5–24 cm wide, averaging 32 × 14 cm, 2–2.9 × longer than wide, 1.2–2 × longer than petiole, subcoriaceous, dark green and semiglossy above, paler and glossy below; midrib slightly paler, flattened at base, broadly convex toward apex above, paler and purple spotted, narrowly rounded, thicker than broad below; primary lateral veins 12–15 pairs, rising at 60–70° angle, weakly quilted-sunken and concolorous above, convex and dark purple below; minor veins fine, moderately obscure below; basal veins 3–4 pairs, all free to the base. Inflorescence 1 per axil; peduncle 4–6 cm long, whitish, obtusely flattened; spathe 10–15 cm long, 1.3 cm diam. on tube, pale green and matte to weakly glossy outside, greenish white throughout inside except dark red-purple in lower 1/3 of tube, glossy with orange resin canals in lower 2/3 of spathe (those on coloured part whitish); spadix 12 cm long, female part 5.3 cm long in front, 3.7 cm long in rear, pale yellow-green; pistils 1.5 mm long, 1.5 mm diam.; stigma 0.2 mm thick, 0.6 mm diam.; locules 5; ovules 2 per locule, borne in oblong-elliptic transparent mucilaginous sacs; placentation basal.