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58 FIELDIANA: BOTANY, VOLUME 28 inflorescentia ad 1.2 m. alti; inflorescentia interrupta, bracteis paniculis secundariis subtendentibus cum vaginae minute hispidopubescentiae et laminae adpresso-villosulae; spiculae masculae ad 4.5 mm. longae in paniculis inferioribus laxe aggregatis, glumis vacuis 5-8 minute pubescentibus oblongo-ovatis vel ovatis ad apicem truncatis vel subtruncatis aristatis, glumis staminibus 4-6 glabris lanceolatis vel lineari-lanceolatis acutis; spiculae foemineae uniflorae ad 4 mm. longae, paucae in paniculis superioribus rigidioribus dispositis, glumis 6-9 minute pubescentibus ovatis vel quadrangulato-ovatis ad apicem truncatis vel sub-bifidis et aristatis; achaenium flavo-brunneura ovoideura glabrum laeve trisulcatum, cum rostro conico laevi ad 4 mm. longum; rostro quam corpore achaenii subaequantes; squamellae hypogynae lanceolatae vel lanceolatodeltoideae ad marginern minute erosae, 0.8-0.9 mm. longae; stylo trifido atrobrunneo vel rubro-brunneo. Type in herb. Chi. Nat. Hist. Mus., isotype in herb. Iowa State College, collected on Sabana Grande, at southeastern base of Cerro Duida, Territorio Federal Amazonas, alt. 200 m., August 23, 1944, Julian A. Steyermark 57855. Apparently most closely related to L guianensis Lindl. & Nees, but differing in the more slender habit, narrower leaves, general distribution of pubescence, and details of the spikelets and achenes. Lagenocarpus Steyermarkii Gilly, sp. nov. Caulis brevis lignosus ad 1 cm. diam., vaginis persistentibus reticulato-fibratis tecta; folia argenteo-grisea scabro-hispidae supra linearia rigida ad 5.5 dm. longa et 1 cm. lata, marginibus antrorse hispido-serratis; culmi floriferi obtuse triangulares, cum inflorescentia interrupta ad 9 dm. alti; spiculae masculae 3.5 mm. longae numerosae in paniculis inferioribus dense congestis, glumis vacuis 2-4, ovatis vel oblongo-ovatis hispid ulo-puberulentibus acutis et mucronatis vel mucronulatis, glumis staminibus 3-6, lanceolatis vel oblongo-lanceolatis pube rule nti bus acutis vel erosis ad apicem; antherae 1.5 mm. longae, filamentis persistentibus; spiculae foemineae uniflorae ad 3.5 mm. longae, paucae in paniculis parvis superioribus rigidioribus congestis, glumis 5-8, hispidulo-puberulentibus ovatis subacutis et subemarginatis et mucronulatis; achaenium ellipsoideum stramineum glabrum subrugulosum et trisulcatum ad basira, 1.8 mm. diam. cum rostro lacunoso laevi 3.5 mm. longum; rostro quam corpore achaenii subaequantes; squamellae hypogynae triangulares ad 0.3 ram. longae, ciliis paucis et minutissimis; stylo trifido. Type in herb. Chi. Nat. Hist. Mus., isotype in herb. Iowa State College, collected in sandy wet ground with Stegolepis and Brocchinia on large mesa, between Mission of Santa Teresita de Kavanaye'n and RYo Karuai, state of Bolivar, alt. 1220 m., October 26, 1944, Julian A. Steyermark 59363.
BOTANICAL EXPLORATION IN VENEZUELA - I 59 Allied to L. guianensis Nees in characters of the glumes and inflorescence bracts, and to L. tremulus Nees in characters of the achenes; amply differing from both of these species in the short and narrow leaves and the congested secondary panicles of the inflorescence. Pseudoeverardia Gilly, gen. nov. Herba perennis terrestris vel epiphytica dioica; folia tristichoimbricata persistentia; culmi solitarii in axillibus foliorum; inflorescentia mascula multispiculata, spiculis confertis; spiculae masculae aggregatae, glumis exterioribus vacuis 4-6, glumis interioribus staminibus 3-8; stamina a gluma fertile subtenta 1-3, filamentis persistentibus, antheris apiculato-mucronatis; inflorescentia foerainea elongata verticillata; spiculae foemineae solitariae vel geminae, glumis 6-8; achaenium subteretium tricostatum, rostro brevi; periantho trifido, lobis membranaceis ad marginem laceratis; stylo trifido. Type species: Pseudoeverardia flexifolia (Gilly) Gilly. Most closely related to the genera Everardia Ridley and Cephalocarpus Nees, but differing from both in being dioecious and in the type of achene, achene beak, and perianth scales; also differing from Everardia (but not from Cephalocarpus) in having only 1-3 stamens in each starainate flower. Pseudoeverardia flexifolia (Gilly) Gilly, comb. nov. et descr. ampl. Didymiandrum flexifolium Gilly, 1941. Bull. Torr. Bot. Club 68: 331. Planta mascula: caulibus ad 3 mm. latis et 3 dm. altis, vaginis persistentibus tarde fibrillosis tecta; folia 1.5-6.5 dm. longa, 1.5-2.2 mm. lata, linearia acute plana ad basim et bicarinata supra medium, dense villoso-pubescentia vel tarde glabrata; culmi floriferi rigidi erecti minute pubescentes, cum inflorescentia ad 3 dm. alti; spiculae masculae 5 mm. longae, glabrae aggregatae, glumis vacuis 4-6, ovatis acutis vel sub-bifidis mucronatis, mucrone ad 1 mm. longo, glumis staminibus 6-8, lanceolatis; antherae 2-2.5 mm. longae. Planta foeminea: caulibus et foliis planta mascula simulans; culmi floriferi rigidi erecti, cum inflorescentia ad 1.5 dm. alti; spiculae foemineae solitarii vel geminae ad apicem pedicellorum, verticillatae, 3.5-5 mm. longae et ad 1 mm. diam., glumis 6-8, glabris exterioribus ovatis vel triangulo-ovatis mucronatis, interioribus lanceolatis vel lanceolato-ovatis acutis vel mucronulatis; achaenium brunneum tricostatum obovoideum minute pubescentium supra medium, ad 1 mm. diam., cum rostro 2.8 mm. longum; rostro obtuso-conico stramineo dense et minute pubescenti, 0.5 mm. longo; squamellae hypogynae 3, membranaceae hyalinae ad apicem lacerato-erosae, ad 0.7 mm. longae; stylo trifido, stigmatibus gracilibus brunneis vel rubrobrunneis.
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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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