252 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [Vol. 9, No. 3 



alternantibus follis cinereo-viridibus; vaginae 15-20 cm longae, 1-2 cm latae, 

 inferiores subaequales, fortiter conduplicatae, carinatae; ligula 0.1-0.2 mm 

 longa, integra (nostra), collo saepissime pilis longis adspersis; laminae 40-60 cm 

 longae, 8-25 mm latae (duplicatae), lineares, rigidissimae, obtusae, condupli- 

 catae vel ad apicem planae, scabriusculae, basi ciliatae, deciduae, apice lateri- 

 bus inaequalibus, uno alterove curvato vel contorto; inflorescentiae terminales, 

 pedunculis 2, 50-100 cm longis, triquetribus, 1-1.5 mm crassis, infra panicula 

 scabriusculis; panicula ca. 30 cm longa, axi 6 cm longo; racemi 6-12, adscen- 

 dentes, 8-21 cm longi, axillis brevissime pilosis; rhachis 0.6-0.7 mm lata, 

 viridis, scabrida, sparse pilosa, infra pedicellos paucis pilis munita, in 25 mm 

 8 spiculis praedita, ad basin spiculis remotis; spiculae 3.0-3.3 mm longae, 1.3 

 mm latae, obtusae, ovatae; gluma lemma sterile aequans, 7 nervis prominulis, 

 inter nervos paucis pilis adpressis praedita; flosculus spiculae longitudinem 

 aequans, pallido-albidus vel pallido-brunneus apice minutissime pilosus obtusus. 



Perennial with stiff, scabrous, drab green foliage; culm up to 3 m tall (label), 

 up to 7 mm thick at the base, compressed, the leaves arranged in fan-shaped 

 clusters from groups of densely crowded nodes, the groups 10-15 cm apart; nodes 

 4-5, sparsely hairy or glabrescent; sheaths 15-20 cm long, 1-2 cm wide, con- 

 duplicate, strongly keeled, fused for more than one third to one half the width, 

 often long hairy near the summit; ligule a thin white membrane, 0.1-0.2 mm long; 

 collar a distinct transverse line, the interior of the collar glabrous; blades 40- 

 60 cm by 8-25 mm (opened), conduplicate, keeled or opening above, ciliate along 

 the lower margins, less commonly also above, sometimes scabrous, obtuse, the 

 halves of the apex often unequal, the longer one recurved over the other to form a 

 beak-like tip, deciduous; inflorescence terminal, scarcely to long-exserted from 

 the sheath, the peduncles 2, about 50 cm long, triangular, 1-1.5 mm thick, -mi- 

 nutely scabrous at the base of the panicle; panicle 30 cm long, the axis 6 cm 

 long; racemes 6-12, ascending, the lower ones sometimes fasciculate, 8-21 cm 

 long, the axils minutely hairy; rachis 0.6-0.7 mm wide, scabrous and sparsely 

 short pilose along the margin, green, a few pedicels subtended by a few hairs, 

 the lower half of the rachis often left naked by early deciduousness of the spike- 

 lets; spikelets 8 per 25 mm, the lower ones much more remote, 3.0-3.3 mm long, 

 1,3 mm wide, reddish, or purplish, obtuse, ovate; glume and sterile lemma equal, 

 7-nerved, or the sterile lemma sometimes 5-nerved, the nerves strong, with lines 

 of short sparse hairs between the nerves; fertile floret equaling the spikelet in 

 length, pale yellow or pale brown (somewhat lustrous in a few cases but never 

 like "the Suffulti), the lemma obtuse, with a few hairs at the tip. 



TYPE: frequent, dominant herb of mountainside, stigmas reddish, to 3 m tall, 

 montane savanna in cano, alt. 800 m, Cerro Moriche, Rio Ventuari, Amazonas, 

 Venezuela, January 14, 1951, Bassett Maguire, R. S. Cowan, & John /. Wurdack 

 30883; U. S. National Herbarium No. 2,040,245. 



Axonopus maguirei Black, sp. nov. Figure 5a. 



Perennis, foliis densissime pilosis; culmi 1.6 m alti, erecti, internodiis 

 subaequalibus, ad basin 5 mm crassi, compressi; nodi 8 densissime pilosi; 

 vaginae 3-30 cm longae, 0.7-1.0 cm latae, basales brevissimae, supremae 

 longiores, pilosissimae, carinatae, summo linea densissime pilosa praeditae; 

 ligula 0.4-0.5 mm longa, longe-ciliata; laminae 7-25 cm longae, 1.5-2.0 cm latae 

 (planae), lanceolatae, acuminatae, basi supra paucis pilis 1-2 mm longis; inflo- 

 rescentiae terminales, pedunculo 1 ca. 45 cm longo, 1 mm crasso, viride; panicula 

 23 cm longa axi 10 cm longo; racemi 12, laxe adscendentes, inferiores fascicu- 



