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Araceae
Philodendron furcatum Croat & D.C.Bay
SUMMARY
broadest near the middle or at petiole attachment, sometimes weakly constricted at or about the petiole attachment; margins somewhat undulate; adaxial surface semiglossy, dark green, drying dull olive-green to grayish with the major veins usually drying much darker; abaxial surface paler than adaxially and matte, drying pale olive-green; anterior lobe 22.5–33 x 16–27 cm, 1.7–1.8x longer than posterior lobes; posterior lobes 12.5–18 x (6.3–)8–11.5 cm, narrowly rounded at apex, directed downward and outward; sinus hippocrepiform, 10–11.5 cm deep; major veins drying raised, concolorous with surface but with very dark margins adaxially, round-raised and darker than surface abaxially; midrib darker than surface, flat or slightly raised within deep valleys, marginally dark green adaxially, round-raised and thicker than broad abaxially; basal veins 3 per side, with 1 to 2 free to base, posterior rib highly branched, naked 2–3 cm; primary lateral veins 5 to 7 per side, 2.5–3.5 cm apart, departing midrib at 50º–60º angles, curving gradually out to margin, darker than blade and deeply quilted-sunken, dark green along the margin of the vein and otherwise medium to pale green adaxially, narrowly raised, matte and darker or paler than blade surface abaxially, those in the lower 1/2 of the blade branched 1 to 2x; interprimary veins nearly equal to primary lateral veins; tertiary veins obvious, especially abaxially, arising from basal veins and primary lateral veins; numerous cross veins obvious on both sides, darker than surface; basal veins 8 to 12 pairs, the 1st pair often free to the base, the remainder variously coalesced and branching off the 6 straight posterior rib, the 4 to 5 acroscopic pairs branched 1 to 2x before merging with the margin; cross veins usually prominulous even on fresh material; sinus narrowly obovate, naked along the posterior rib 3–5 cm. INFLORESCENCE 1 to 2 per axil; peduncle medium green, weakly glossy, 6–7 cm, 3.5–4 mm diam. on drying; spathe 12.5–13 x 2.1–2.3 cm on tube, moderately dark green and matte outside, paler and weakly glossy within; blade white on both surfaces; spadix 11.5–12 cm; staminate portion 6–6.5 cm, 1.3– 1.4 cm diam., drying ca. 7 mm diam. midway; sterile portion ca. 2.5 cm, ca. 1.5 cm diam. at base, ca. 1.5 cm diam. at apex; pistillate portion 4–5 cm, 1.4– 1.6 cm diam.; pistils pale yellow-green, 5- to 6- locular, 1.8–2 mm, 1.4–1.8 mm diam; placentation basal; ovules 8 to 10 per locule, ca. 0.15 mm, contained within an oblong opaque envelope, the envelope ca. 1 mm, attached at base of locule; funicle shorter than ovule; style irregularly 5- to 6-sided with rounded edges, minutely papillate, matte, drying bowl-shaped with 5 to 6 deep depressions, 0.5–0.7 mm wide; stigma consisting of 1 brush-like cluster for each locule, the entire width of the collective stigma 0.8–1 mm diam., drying flattened to saucer-shaped, irregularly angular, 1–1.5 mm diam. Berries not seen.