268 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[Vol 9, No. 3 



on the under surface; fertile culm 30 cm long, ascending; the upper sheath elon- 

 gate; inflorescence 6 cm long, about 7 mm wide, pale, tinged with violet, the 

 whorls of spikelets 8-9 mm long, the pedicels 4 mm long, not obscured by the 

 spikelets, densely pilose at the base; staminate spikelet: glumes acute, about 

 half as long as the lemma or somewhat shorter, one broad, decurrent, apparently 

 2-nerved, the other narrow, nerveless, or both glumes broad in the upper whorls, 

 finely ciliate; lemma 4.5-5 mm long, 1.5-1.8 mm wide, acute, granular roughened, 

 with a few transverse veins in the upper part. 



TYPE: frequent, moist woodland trail, Danta Falls, Rio Cuao, Rio Orinoco 9 

 Amazonas, Venezuela, November 19, 1948, Bassett Maguire & Louis Politi 27327; 

 U. S. National Herbarium No. 2,040,165. 



Pariana pallida Swallen, sp. nov. 



Perennis culmis biformibus; culmus sterilis 60 cm altus, summo ca. 10- 

 foliosus; vaginae ca. 7 cm longae, ad summum dense pubescentes, fimbriatae 

 setis paucis brevibus; laminae inferiores 17-18 cm longae, usque ad 4.3 cm latae, 

 superiores minores, acuminatae, petiolo crasso 3 mm longo dense pubescenti; 

 culmus fertilis 32 cm longus vaginis inflatis tectus; inflorescentia 6 cm longa, 

 pallida, spicularum fasciculis ca. 8 mm longis, pedicellis spicularum mascularum 

 2.5 mm longis, basi pubescentibus; spiculae masculae: glumae acuminatae, latae, 

 decurrentes, 1- vel 2-nerves, vel una angusta, 1-nervis vel enervis, glabrae vel 

 ad basin tenuiter ciliatae; lemma 4.5-5 mm longum, 2.6-3 mm latum, oblongum 

 vel plus minusve obovatum, acutum, minute scabrum, reticulatum. 



Leafy culms 60 cm high with about ten leaves in the upper third; sheaths 

 about 7 cm long, densely pubescent toward the summit, less so or glabrous to- 

 ward the base, with a glabrous glandular area just below the throat, the throat 

 truncate with a few short fimbriate hairs; lower blades 17-18 cm long, as much 

 as 4.3 cm wide, smaller upward, acuminate, glabrous, with a thick pubescent 

 petiole 3 mm long; fertile culm 32 cm long, ascending, almost completely covered 

 by the bladeless sheaths, the uppermost inflated reaching the base of the inflo- 

 rescence; inflorescence 6 cm long, pale, the whorls toward the base about 8 mm 

 long, the pedicels of the staminate spikelets about 2.5 mm long, pubescent at 

 the base; staminate spikelet: glumes acuminate, broad, decurrent nearly to the 

 base of the pedicels, 1- or 2-nerved, or one of them narrow, 1-nerved or nerve- 

 less, glabrous or very finely ciliate toward the base; lemma 4.5*5 mm long, 2.6-3 

 mm wide, oblong or slightly obovate, broadly acute, minutely scabrous, with a 

 few transverse veins. 



TYPE: common in moist lowland woods along river, Playa Alta, Rio Cunu- 

 cunuma, Rio Orinoco, Amazonas, Venezuela, November 6, 1950, Bassett Maguire, 

 R. S. Cowan & John J. Wurdack 29455; U.S. National Herbarium No. 2,040,209. 



Pariana obtusa Swallen, sp. nov. 



Perennis culmis biformibus; culmi steriles 40 cm alti, summo 3-foliosi; va- 

 ginae glabrae vel summo minute pubescentes, gland ulosae in ore fimbriatae setis 

 paucis brevibus; laminae 16-19.5 cm longae, 5.2-5.8 cm latae, acuminatae, 

 ovatae, subtus glaucissimae, granulosae; culmus fertilis 42 cm longus, adscen- 

 dens, vaginis purpureis tectus; inflorescentia 8 cm longa, pallida, exserta, 

 spicularum fasciculis 7 mm longis, pedicellis spicularum mascularum 2 mm 

 longis; spiculae masculae: glumae 3-4 mm longae, 1- vel interdum 2-nerves, una 

 angusta altera latior, infra medium tenuiter ciliatae; lemma 4.5-5.0 mm longum, 

 2.5-3 mm latum, obtusum, scaberulum, violascens. 



