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206 FIELDIANA: BOTANY, VOLUME 28 Piper monagasense Yuncker, sp. nov. Frutex 5-6 m. altus; internodi is indumento conferto brunneo intertexto vestitis; foliis ovatis 13-16 cm. latis, 27-30 cm. longis, apice acutis, basi cordatis, lobis basalibus rotundatis approximatis obtegentibusve, supra secus venas villosis, subtus dense crispe villosis, a tertio supero deorsum pinnatim venosis; petiolo 4 cm. longo, indumento brunneo intertexto praedito, ad laminam vaginatoalato; spicis 7-8 mm. crassis, 35 cm. vel ultra longis; pedunculo 3.5 cm. longo, pubescentia intertexta vestito; bracteis triangularisubpeltatis, conferte ad marginem firabriatis; ovario ovoideo, stigmatibus sessilibus. A shrub 5-6 m. tall; upper intemodes comparatively slender and elongated, densely matted brown-villous; leaves when living dark green with sulcate loose areolate nerves above, silvery-gray green beneath with raised nerves, ovate, 13-16 cm. wide x 27-30 cm. long, apex acute, base cordate, lobes rounded, approximate or overlapping, nearly equal or one lobe somewhat longer, pinnately nerved below the upper third, the nerves 6 or 7 on each side, submarginally loopconnected, with rather prominent cross-connecting and anastomosing nervules, villous above along the nerves, densely crisp-villous beneath, the hairs brown, drying coriaceous, opaque; petiole 4 cm. long, matted brown-villous, vaginate-winged to the blade; spikes pendent, 7-8 mm. thick x 35 cm. or more long in fruit; peduncle 3.5 cm. long, matted-villous; bracts triangular-subpeltate, densely marginally fringed with brown hairs, the pedicel villous; ovary ovoid; stigmas 3, sessile. Type in herb. Chi. Nat. Hist. Mus., collected on forested southwest-facing slopes of Cerro Negro, above La Sabana de Las Piedras, northwest of Caripe, state of Monagas, alt. 1500 m., April 5, 1945, Julian A, Steyermark 61853. Piper oparumaense Yuncker, sp. nov. Suffrutex 2-3 m. altus; intern odiis superis lenticulato-verrucosis, glabris; foliis ovatis, 17 cm. latis, 28-30 cm. longis, apice obtusis, basi inaequilatera liter cordatis, sinu obliquo clauso, venis subtus puberulis, ad quartum superum pinnatim venosis; petiolo 3 '5 cm. longo ad laminam vagina to-alato, lenticulato-verrucoso; spicis 1 x 30 cm. magnis; pedunculo 2-3 cm. longis; bracteis rotundato- vel subtriangulari-subpeltatis; drupa oblonga subtetragona, apice paullo papillose; stigmatibus sessilibus. A soft-wooded subshrub 2-3 m. tall; upper intemodes moderately short and slender, lenticular-warty, glabrous; leaves when living subcoriaceous, deep green above, paler beneath, ovate, 17 cm. wide x 28-30 cm. long, apex obtuse, base inequilate rally cordate with oblique closed sinus, lobes rounded, the larger longer than and covering the petiole, pinnately nerved to the upper fourth, the nerves about 6 on eech side with 3 additional recurved nerves in the longer lobe, submarginally loop-connected in two series, with rather strong
BOTANICAL EXPLORATION IN VENEZUELA - I 207 cross-connecting and anastomosing nervules, glabrous above, the nerves beneath puberulent, drying coriaceous, opaque; petiole 3-5 cm. long, glabrous, vaginate-winged to the blade, lenticular-warty; spikes 1 cm. thick x 30 cm. or more long when mature; peduncle 2-3 cm. long, glabrous; bracts rounded- or subtriangular-subpeltate, somewhat inflexed ventrally, papillate and brown-hairy on the ventral margin and pedicel; fruit oblong-subtetragonous, somewhat papillate at the apex; stigmas 3, sessile. 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 60548% Piper perlongivillosum Yuncker, sp. nov. Frutex nodosus 1 m. altus; internodiis superis indumento hirtulo cum pilis longioribus intermixto vestitis; foliis elliptico-subovatis, 6-8 cm. latis, 18-21 cm. longis, apice subcaudatim acuminatis, basi subaequilatera liter rotundatis cordulatisve, venis subtus hirtulis, fere totis pinnatim venosis; petiolo ca. 5 mm. longo hirtulo-villoso; spicis 4 mm. crass is, 6 cm. vel ultra longis; pedunculo 2 cm. vel ultra longo; bracteis parvis subcucullatis apice triangulari-truncatis; fructu obovoideo bene angulato subalatove; stigmatibus sessilibus. A nodose shrub about 1 m. tall; upper intern odes short and slender, hirtellous intermixed with rather stiff hairs up to 3-4 mm. long; leaves when living rugose on both sides, dark dull green above, paler beneath, firmly membranous, elliptic-subovate, 6-8 cm. wide x 18-21 cm. long, apex subcaudately acuminate, base subequilaterally rounded, cordulate, pinnate ly nerved throughout, the nerves 10-12 or more on each side, submarginally loop-connected, wkh shorter intermediates and cross-connecting anastomosing nervules, glabrous and somewhat depressed-punctate above, the nerves beneath staring hirtellous, the midrib with scattered long hairs, drying chartaceous, translucent, narrowly revolute; petiole stout, about 5 mm. long, hirtellous-villous; spikes 4 mm. thick x 6 cm. or more long, dull green when living, rather loosely flowered; peduncle slender, 2 cm: or more long, hirtellous-villous; bracts small, subcucullate wkh triangular-truncate apex, hispidulous; fruit obovoid, strongly angled or subalate, glabrous; stigmas small, sessile. Type in herb. Chi. Nat. Hist. Mus., collected on southeasternfacing slopes along Cano Negro (tributary of Cano Iguapo), Cerro Duida, Territories Federal Amazonas, alt. 305-1095 m., August 25-26, 1944, Julian A. Steyermark 57953. The rugose leaves, dimorphic hairs and strongly angular or somewhat winged fruit are distinctive characters of this species. Piper Steyermarkii Yuncker, sp. nov. Frutex scandens glaber epiphyticus; foliis ellipticis 3.5-6 cm. latis, 10-15 cm. longis, apice sensim acute acuminatis, basi aequi-
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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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BOTANICAL EXPLORATION IN VENEZUELA
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I BOTANICAL EXPLORATION IN VENEZUEL
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