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92 FIELDIANA: BOTANY, VOLUME 28 ly elongated, the lower surface glabrous except for 10-13 dull white, tomentose, longitudinal bands, deep green on upper surface, dull green on lower surface; fruking spadix arising at base of (below) leaf sheath, 5-10 era. wide at base, 2-3 era. wide in middle portion, 0.5-1 cm. wide in the upper half, glabrescent or finely sparsely appressed-pilose above or finely strigose below; fruking sheaths covered with a dull gray, fine coating, which is covered over, especially on the lowermost sheath, with brown appressed short hairs; mesocarp whitish, dry-scaly, with irregular, castaneous, thread-like parts running lengthwise through tissue; outside of endocarp dark brown with irregular buff or pale brown longitudinal lines anastomosing or branching on surface. Type in herb. Chi. Nat. Hist. Mus., collected in lower portion of Quebrada O-paru-ma, tributary of Rio Pacairao, below Santa Teresita de Kavanayen, state of Bolivar, alt. 915-1065 m., November 25, 1944, Julian A Steyermark 60541* Known locally as "Capai-chan-yek" ("Cola de Pescado"). The bark and wood are used locally by the inhabitants for making into roofs. This species is distinguished by the longitudinal lines of white tomentum on the lower surface of the leaf segments, which are otherwise glabrous, by the concolorous leaf surfaces, and by the dense tomentum over the surface of the leaf rachis, especially in its lower portion. From S. elegans Karst., described as having the lower side of the leaf segments with "lineis albo-tomentosulis notatas", this new species differs in the concolorous rather than glaucous lower leaf surface, and in the segments with longer, more erose tips. ARACEAE Anthurium duidae Steyermark, sp. nov. Planta terrestris glabra; caudice paullo elongato, 5 mm. crasso, internodiis 1.5-3 cm. longis; cataphyllis ovatis vel lanceolatis, obtusis, nervatis, 1.5-5 cm. longis, 1-1.3 cm. latis; petiolis lamina longioribus, 19-28 cm. longis, 2.5-3 mm. crassis; lamina in sicco subcoriacea, late ovato-oblonga, 13-16 cm. longa, 8-11 cm. lata, supra obscure viridi, subtus pallida, apice rotundata, basi subcordata, nervis primariis utrinque 1, basi nascentibus, 1-1.3 cm. a margine remotis, utrinque distincte prominentibus. Blades deep green above, pale below. Type in herb. Chi. Nat. Hist. Mus., collected on summit of Cerro Duida, along valley forest between Central Camp and Brocchinia Hills, Territorio Federal Amazonas, alt. 1675 m., August 31, 1944, Julian A. Steyermark 58099. In leaf shape this species somewhat resembles A. marense Krause, but that species has the primary nerves more remote from the margin
BOTANICAL EXPLORATION IN VENEZUELA - I 93 and a more deeply cordate or subcordate leaf. From A. glanduligerum Engl. it differs in having 3 instead of 5 prominent nerves (1 instead of 2 main primary nerves on each side of the midnerve), the lowest pair evident in A. glanduligerum, but not in A. duidae. It is unfortunate that the material upon which this new species is based is sterile, but it resembles no other described species. Anthurium Krauseanum Steyermark, sp. nov. Herba epiphytica, caudice elongate, 5-10 mm. crasso, internodiis 2-2.5 cm. long is, caulibus radices paucas elongatas emittentibus; cataphyllis ovato-oblongis, obtusis, 2-2.5 cm. longis; foliorum petiolis 21-23 cm. longis, 3 mm. crassis, supra sulcatis teretiusculis; lamina coriacea, supra atro-viridi nitente, ovato-oblonga, basi subtruncata vel rotundata, apice obtusa, 17-19 cm. longa, 7-8.5 cm. lata, nervis primaries utrinque 2 basi nascentibus, infimis leviter arcuatis in ima quarta parte marginibus exeuntibus, intimis validioribus adscendentibus medium a margine 1.3-15 cm. remotis, utrinque distincte prominentibus; spatha 2.3 cm. longa, 5 mm. lata; spadice stipite 4 mm. longo suffulto,10 mm. longo, 4 mm. crasso. Leaves dark green and shining above, dull paler green below; spadix dull lavender. Type in herb. Chi. Nat. Hist. Mus., collected in woods on southeastern portion of base of Carrao-tepui, state of Bolivar, alt. 1460- 1615 m., December 4-5, 1944, Julian A. Steyermark 60847. This species is related to A. crassifolium N. E. Brown, differing from that in its smaller spathe and spadix, stipitate instead of sessile spadix, and subtruncate to broad, instead of cuneate, leaf base. In its shorter stipe and spadix, and narrower spathe, it differs from A, microphyllum (Hook.) Don. Anthurium monsterioides Steyermark, sp. nov. Caudex epiphyticus; foliorum petiolo 45 cm. longo, 1-2 cm. crasso, semitereti; lamina 9-H-secta, segmentis subpetiolatis, basi longe cuneatis liberis, apice abrupte acuminatis, 35-60 cm. longis, 10-25 cm. lads, nervis primariis 3-4 utrinque; lobis 4 utrinque vel paucioribus remotis, apice abrupte acuminatis et sursum curvatis, 8-12 cm. longis, 5.5-8.5 cm. latis; pedunculo quam petiolo breviore, 25 cm. longo, 8 mm. crasso; spatha subcoriacea, viridi, 10-24 cm. longa, 1.5-3 cm. lata, lanceolata, acuminata reflexa; spadice sessili pallid o-purpurascente, 8-23 cm. longo, inferne 0.7-1.3 cm. crasso; tepalis 2 mm. longis, 1-1.3 mm. latis; pistillo 2-2.3 mm. longo; ovario oblongo-ovoideo; stigmate sessile coronato. Leaf blade dark green above, dull green below, the 9-11 segments cuneate ly tapering and decurrent to the substipitate base, the stipi- 'tate portion up to 1.5 cm. long, midnerve prominent especially below; inflorescence arising from base of leaf sheath.
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o 2 CM XI E> RAR.Y OF THL UNIVERSIT
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FIELDIANA: BOTANY A Continuation of
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NUMBER 1 LIST OF ILLUSTRATIONS TEXT
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PAGE 67. Emmotum ptarianum 342 68.
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CONTRIBUTIONS TO THE FLORA OF VENEZ
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