Chlorospatha callejasii Croat & L.P.Hannon

Terrestrial herb, ca. 1 m tall; stem elongate, remnants of old cataphylls persisting in part semi-intact, otherwise as pale, reddish brown linear fibers (all measurements made from dried materia!); internodes 1.5-2.5 cm long, 1.5-2.5 cm diam., drying weakly glossy, medium-dark brown; cataphylls not known. LEAVES 2, probably erect-spreading; petioles 82.5 cm long, drying glabrous, weakly glossy, dark reddish brown, almost black, sheathed 45 cm, slightly more than 1h of total length; sheath decurrent at apex; free portion ca. 5 mm diam. midway; blades deeply 3-lobed, nearly trisect, ca. 33 cm long, ca. 30 cm wide, 1.1 times longer than wide, broadest below middle, drying thinly coriaceous, weakly bicolorous; upper surface green, drying matte-subvelvety, weakly green-tinged, dark reddish brown; lower surface drying semi-glossy; medial lobe 29.5 cm long, 12 cm wide, 2.5 times longer than wide, acute at apex, broadest at or above middle, 1.1-1.2 times longer than lateral lobes, cuneate and broadly attached at base, ca. 3 cm. wide at point of attachment, weakly inequilateral; lateral lobes weakly falcate, directed toward the apex, 24.5-28 cm long, 8.5-9.2 cm wide, 3 times longer than wide, acute at apex, broadest below middle, markedly inequilateral, the inner side always narrower, weakly attenuate to long-attenuate toward base, narrowly confluent with medial lobe, the confluent portion ca. 4 mm wide; outer side 3.2-4.8 times wider than inner side midway, moderately to narrowly rounded at base, briefly attenuate onto posterior rib; midrib and major venation convex on lower surface, drying ± flattened, much darker than surface, almost black; posterior rib naked 1-1.5 cm per side; primary lateral veins (on medial lobe) 5 pairs, arising at 35-45°, weakly arcuate; primary lateral veins (on lateral lobes) 9-11 pairs, arising at 40-120°, weakly arcuate, aggregated toward base, the basal 3 fused near base; secondary veins drying in part weakly raised, otherwise prominulous on lower surface, much darker than surface; tertiary and reticulate veins drying weakly prominulous on lower surface, weakly darker than surface; collective veins 3, the innermost arising from one of the lowermost lateral veins at base, loop-connected with all preceding lateral veins, moderately scalloped, 5-10 mm from margin. INFLORESCENCES erect, 2 per axil; peduncle held within the sheath, 46 em long, 2-3 mm diam., drying weakly glossy, blackish brown; spathe erect, ca. 9 cm long, apex not known, weakly or not at all constricted between tube and blade; spathe tube dark purple on both surfaces, 4.2 cm long, 7 mm diam., drying weakly glossy, weakly purple-tinged dark brown on both surfaces; spathe blade white, ca. 4.5 em long, 8 mm diam., drying matte, pale tan, marcescent, erect after anthesis; spadix erect, 8.2 cm long, sessile, adnate to spathe ca. 1.5 em at base, ca. 1/2 of the length of pistillate portion; pistillate portion red, 3.6 em long, 3-4 mm diam., broadest below middle; fertile staminate portion white, 3.2 em long, 3.5-6 mm diam., broadest just above base, weakly tapering, narrowly rounded at apex, drying medium yellowish brown; sterile staminate portion 1.4 cm long, ca. 3 mm diam., ± cylindrical, drying medium-dark reddish brown, weakly darker than fertile staminate portion; pistils ± densely arranged, ca. 4 across the axis (viewed from above), ca. 1 mm long; ovaries cylindrical, 1-1.5 mm long, 1-1.5 mm diam., drying dark tan with darker veins; style disc-like, 1-1.5 mm diam., the margins not coherent with those of adjacent styles; stigma sessile, ca. 0.2 mm diam., ± capitate; synandria ca. 1 mm long, ca. 1. 5 mm diam., coherent, truncate, deeply 3-4-lobed, 3-4-androus; sterile flowers ca. 0.5 mm long, 2-3 mm X 1 mm diam., markedly elongated in direction of axis, coherent, truncate, irregularly prismatic to sub-prismatic, in 5 whorls. INFRUCTESCENCE (immature) 5.5 cm long, 8 mm diam., drying matte, blackish brown. BERRIES not known.