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



37317; occasional at edge of west escarpment savanna, 2 .km north of Cumbre 

 Camp, alt. 1800 m, Bassett Maguire, John J. Wurdack, & George S. Bunting 

 37240; frequent in savanna 5 km west of Cumbre Camp, alt. 1900 m, Bassett 

 Maguire, John J. Wurdack, & George S. Bunting 37135. 



6. Myriocladus simplex Swallen, sp. nov. Figure 2. 



Culmi erecti, caespitosi, 45 cm to 3 m alti, simplices vel summo ramis brevis, 

 internodiis elongatis 1-3; vaginae hispidulae vel subglabrae, ligula exteriore 

 inconspicua minute ciliata, in ore fimbriatae; laminae 5-7 cm longae, 5*10 mm 

 latae, superiores breviores, adscendentes, basi quam vagina multo angustiores, 

 ad basin sparse pubescentes, marginibus scabrae vel glabrae; ligula 1 mm longa, 

 arcuata, pubescens; panicula 10-20 cm longa, ramis 3*6 adscendentibus, infimo 

 usque ad 13 cm longo, axe et ramis glabra; spiculae variabiles, floris fertilibus 

 1 vel 2; gluma prima 2.8-4 mm longa, angusta, minute ciliata; gluma secunda 

 4.5-6 mm longa, subobtusa, ad summum minute ciliata; lemma sterile 5-6 mm 

 longum, glumam secundam simulans; lemma fertile primum 5-6.3 mm longum, 

 acutum summo minute ciliatum; palea quam lemmate 0.8 mm longior, truncata, 

 summo hispidula, inter carinam ad summum minute pubescens. 



Culms slender, tufted, erect, 45 cm to 3 m high, with 1-3, or possibly more, 

 elongate internodes, alternate with single nodes or groups of much shortened 

 internodes, simple, or the taller culms with a group of short branches at the 

 summit; exposed portion of sheaths about 5 mm long, hispidulous, becoming 

 glabrous or nearly so, the rim inconspicuous, minutely ciliate,the throat rounded, 

 more or less fimbriate; blades commonly 5-7 cm long, 5-10 mm wide, or the upper 

 ones smaller, rounded at the base, this much narrower than the mouth of the 

 sheath but scarcely petiolate, sparsely pubescent toward the base, the margins 

 scabrous to nearly glabrous; ligule about 1 mm long, broadly arcuate, pubescent 

 on the back; inflorescence 10-20 cm long, sometimes less, consisting of 3-6 

 ascending racemes, the lowest usually remote, as much as 13 cm long, but 

 usually shorter, with a rather large pulvinus at the base, the main axis and 

 branches glabrous; spikelets very variable, with one or two fertile florets and a 

 rachilla-joint, when with two fertile florets the rachilla-joint between them 0.5 

 mm long, thick, glabrous; first glume 2.8-4 mm long, usually narrow, minutely 

 ciliate; second glume 4.5-6 mm long, subobtuse, minutely ciliate toward the 

 summit, the thickened midnerve sometimes excurrent; sterile lemma 5-6 mm long, 

 similar to the second glume; lemma of first fertile floret 5*6.3 mm long, acute, 

 minutely ciliate near the summit, the midnerve somewhat thickened at the tip; 

 palea, exceeding the lemma as much as 0.8 mm, truncate, the tip hispidulous, 

 minutely pubescent between the keels toward the summit. 



TYPE: frequent along stream bank, right branch of Cano Yutaje, alt. 1300 m, 

 Serrania Yutaje, Rio Manapiare, Terr. Amazonas, Venezuela, February 9, 1953, 

 Bassett Maguire & Celia K. Maguire 35134; U.S. National Herbarium No. 2,116,105. 



7. Myriocladus exsertus Swallen, sp. nov. Figure 3c. 



Culmi usque ad 4 m alti, ramosi; rami solitarii vel bini, elongati, erecti, 

 graciles; vaginae glabrae vel pubescentes, in ore fimbriatae; laminae 10-11.5 

 cm longae, 2 cm latae, vel superiores breviores, basi subtruncatae, marginibus 

 ad basin hispidulo-ciliatae; panicula 17-33 cm longa ramis adscendentibus, 

 inferioribus 7-13 cm longis; spiculae 2-3-florae, distantae, pedicellis ca. 4 mm 

 longis; gluma prima lineari-lanceolata, 2.5-3.5 mm longa, marginibus minute 

 ciliata, summo hispidula; gluma secunda 4 mm longa, quam gluma prima latior; 

 lemma sterile 5 mm longum, acutum, summo crassum, marginibus minute ciliatae; 



