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54 FIELDIANA: BOTANY, VOLUME 28 filaraentis persistentibus; spiculae foemineae ex vagina protrudens ad 2 mm. longae, glumis 2-4 ovatis glabris, 1-2 ram. longis; achaenium glabruro laeve marginatura sublenticulare oblongo-quadrangulatum vel cum rostro laevi et inflate ellipsoideum, ad 2.5 mm. longum; squamellae hypogynae nullae; stylus bifidus, stigmatibus brunneis ad 2 mm. longis (Fig. 6, m). Type in herb. Chi. Nat. Hist. Mus., isotype in herb. Iowa State College, collected in swampy woods, between Esmeralda Savanna and southeastern base of Cerro Duida, Territorio Federal Amazonas, alt. 200 m., August 22, 1944, Julian A. Steyermark 57820. This species differs from all the other known species of the genus in the narrowness and small size of the inflorescence bracts. With regard to the small number of pistillate spikelets, this species is most nearly like E. megalorrhyncha Tutin, but in glabrity and cespitose habit it is more nearly like E. amazonica C. B. Clarke. Cephalocarpus Steyermarkii Gilly, sp. nov. Caulis gracilis ramosus, ad 10 cm. altus; folia linearia acuta bicarinata sparse pilosa, 8-20 cm. longa et 1.5-2 mm. lata; culmi floriferi solitarii in axillibus foliorum, 4-8 cm. alti; inflorescentia capitata multispiculata; bracteae inferiores inflorescentiam subtendentes ad 2 cm. longae, dense vel sparse pilosae; spiculae masculae 4-5 mm. longae, ad 1 mm. diam.; glumis vacuis 3-5, lanceolatis mucronatis glabris vel mucrone sparse pilosis, glumis sta minibus 2-3, lanceolatis acutis hyalinis glabris; antherae 2.75-3 mm. longae; spiculae foemineae 4-5 mm. longae, glumis 5-8, lanceolatis acuminato-mucronatis glabris vel mucrone sparse pilosis; achaenium subteretium obovoideum glabrum stramineum, 1.75-2 mm. longum, ad 1 mm. diam., rostro 1-1.5 mm. longo persistenti sparse pubescente; squamellae hypogynae ovato-orbiculares, ciliis subcopiosis quam corpore achaenii 4- vel 3-plo brevioribus. Type in herb. Chi. Nat. Hist. Mus., isotype in herb. Iowa State College, collected in shaded spots in scrubby forest on rocky open portion of plateau on south east- facing slopes, Ptari-tepui' state of Bolivar, alt. 1600 m., November 1, 1944, Julian A. Steyermark 59640', south-facing slopes, Ptari-tepui', alt. 1800-1900 m., Steyermark 59800. A member of the subgenus Neocephalocarpus, most closely related to C. longibracteatus Gilly, but approaching C. lineariifolius Gilly in length and narrowness of leaves. The several specimens examined vary considerably in the length to which the branched stem has developed. Everardia montata Ridley, var. pilosa Gilly, var. nov. A plantae typicae differt marginibus foliorum albo-pilosis copiosis; culmis floriferis dense albo-pilosis; bracteis paniculis secundariis subtendentibus cum vaginae dense et minute pubescentibus; achaenio
BOTANICAL EXPLORATION IN VENEZUELA - I 55 cum corpore 3 mm. iongo et 1 mm. lato et cum rostro minute pubescent! 2.5 mm. Iongo. Type in herb. Chi. Nat. Hist. Mus., isotype in herb. Iowa State College, collected on summit of Cerro Duida, on high moist ridge top, Territorio Federal Amazonas, alt. 1820-2075 m., September 4, 1944, Julian A. Steyermark 58318, The typical phase of the species the series of cerros. is known from the eastern end of I verardia ptariensis Gilly, sp. nov. Caulis brevis; folia ad 10.5 cm. longa, ad basim 8-10 mm. lata, glabra, margine et costa scabridulo-ciliolata excepta, margine revoluta; culmi floriferi laxe adscendentes, cum inflorescentia ad 6 dm. alti; vagina vacua ad basim 1.5 mm. longa, vaginae floriferae atro-brunneae vel rubro-brunneae glabrae lamina subaequantae; spiculae masculae 4-5.2 mm. longae, glumis vacuis 3-5, ovatis mucronulatis ciliolatis ad apicem, glumis staminibus 2-4, oblongis vel oblongo-lanceolatis glabris acutis vel truncatis et erosis ad apicem; spiculae foemineae 3-4 mm. longae, glumis 4-6 ovatis ciliolatis mucronulatis vel mucronatis; achaenium glabrum stramineum vel pallid o-brunneum ellipsoideum, 0.8-1 mm. diam. cum rostro 3.5 mm. longum; rostro conico glabro, quam corpore achaenii 3-plo brevioribus; squamellae hypogynae minute suborbiculares, ciliis copiosis quam corpore achaenii 3-vel 4-plo brevioribus; stigmata gracilia atrobrunnea. Type in herb. Chi. Nat. Hist. Mus., isotype in herb. Iowa State College, collected on forested south-facing slopes overlying sandstone on "Cave Rock" above "Cave Camp", Ptari-tepui, state of Bolivar, alt. 1810 m., October 29, 1944, Julian A. Steyermark 59496. Allied to E. montana Ridley in vegetative habit, but differing markedly in the very slender, much elongated flowering culms and in the structure of the achene. Everardia Steyertnarkii Gilly, sp. nov. Caulis robustus ramosus, ad 2.8 dm. altus, vaginis persistentibus fibrilosis tecta; folia ad 4.3 dm. longa et 3-3.5 mm. lata, plana vel bicarinata ad apicem linearia dense albo-pilosa vel albo-lanata et tarde glabrata; culmi floriferi erecti lanati, cum inflorescentia ad 3.5 dm. alti, vagina vacua ad basim 2.5-3 cm. longa, vaginae floriferae atrobrunneae albo-pilosae lamina subaequantae; spiculae raasculae 5-6.5 mm. longae, glumis vacuis 4-7, ovatis vel lanceolatoovatis mucronatis glabris, glumis staminibus 2-4, lanceolatis vel oblongo-lanceolatis acutis glabris; antherae ad 3.5 mm. longae; spiculae foemineae, omnes ad apicem inflorescentiae dispositae, jam deficientes; achaenium ignotum. Type in herb. Chi. Nat. Hist. Mus., isotype in herb. Iowa State College, in Brocchinia-Stegolepis-H eliamphora swamp on southwest-
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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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