140 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[VW. 9, No. 2 



Paspalum azuayense Sohns, sp. nov. 



Perenne, caespitosum; culmi 25-65 cm alti, striati, glabri; vaginae glaberrimae, 

 marginibus ciliatae summo papilloso-ciliatae; ligula membranacea, brevis (1-1.5 

 mm longa); laminae 2-12 cm longae, acuminatae, 4-6 mm latae, supra sparse 

 pilosae, subtus glaberrimae; racemi 2-4, 2.4-5 cm longi; rachis glabra, 0.9-1 mm 

 lata, recta vel subflexuosa; spiculae binae, 1.6-2.1 mm longae, 1.2-1.5 mm latae, 

 elliptico-ovatae; gluma secunda et lemma sterile minute pubescentia, 3-nervia, 

 ad maturitatem gluma secunda quam lemmate fertili breviore; lemma sterile et 

 lemma fertile aequalia; fructus ca. 2 mm longus, pa Hid us. 



An erect tufted perennial; culms simple, 25-65 cm tall, striate, smooth; nodes 



1— 1.5 mm long, brown, glabrous; sheaths shorter than the internodes, prominently 

 striate, glabrous, ciliate on the margins, papillose-pilose near the summit (es- 

 pecially on the innovations), the basal sheaths sparsely long pilose, becoming 

 glabrescent, the uppermost bladeless; ligule membranaceous, 1-1.5 mm long; 

 blades 2-12 cm long, folded when dry, 4-6 mm wide, glabrous on the lower sur- 

 face, glaucous and sparsely pilose on the upper surface, the margins antrorsely 

 scabrous; panicle (in mature specimens) long-exserted, 5-7 cm long; racemes 



2- 4, 2.4-5 cm long, straight or slightly flexuous, with a tuft of white hairs in the 

 axils; rachis 0.9-1 mm wide, straight or nearly so, drying dark brown; spikelets 

 in pairs, crowded, on short pedicels, greenish, brownish or drying dark-brown to 

 reddish, elliptic-ovate, 1.6-2.1 mm long, 1.2-1.5 mm wide; second glume pubes- 

 cent, three-nerved, shorter than the fertile lemma in mature spikelets; sterile 

 lemma pubescent, as long as the fertile lemma; fruit pale, 2 mm. long, the lemma 

 and palea minutely striate. (See Fig. 1, a-g.) 



AZUAY: Between Rlos Azogues and Gualaceo, valley of the Rio Paute, be- 

 tween Paute and Cuenca, 7200-8000 ft (dry cliffs, rocky hillsides and occasional 

 ravines), April 26, 1945, E-2313 (TYPE, US 2,011, 130). 



Paspalum ceresia (Kuntze) Chase in Niles, Contr. U. S. Nat. Herb. 24: 153. 1925. 



AZUAY: Between Rlos Azogues and Gualaceo, valley jof the Rio Paute, be- 

 tween Paute and Cuenca, 7200-8000 ft (dry cliffs, rocky hillsides and occasional 

 ravines), E-2332. 



Paspalum coojugatum Berg. Act. Helv. Phys. Math. 7: 129- pi- 8. 1762. 



CHIMBORAZO: Canon of the Rio Chanchan near Huigra, 4000-4500 ft. (mostly 

 scrub-chaparral, with a few seepages and small swamps along the river), E-3095. 

 SANTIAGO-ZAMORA ("Oriente"): Near Mendez, 1750-2500 ft, E-861. 



Paspalum humboldtianum Flugge, Monogr. Pasp. 67. 1810. 



A^UAY: Vicinity of Cuenca, along Rio Milchichic, about 5 km north of Cuenca, 

 8200-8900 ft, E-2743 (collected by Prieto). CHIMBORAZO: Canon of the Rio 

 Chanchan, about 5 km north of Huigra, 5000-6500 ft (moist forested valleys in 

 the afternoon fogbelt), E-3257. 



Paspalum notatum Flugge, Mongr. Pasp. 106. 1810. 



CHIMBORAZO: Canon of the Rio Chanchan near Huigra, 4000-4500 ft (mostly 

 scrub-chaparral, with a few seepages and small swamps along the river), E-3061. 



Paspalum pallidum H.B.K. Nov. Gen. & Sp. 1: 88. 1815. 



CAl^AR: Dry chaparral scrub and paramo, with occasional moist valleys, near 

 El Tambo (ca. 69 km by RR south of Sibambe), 9500-10,000 ft, E-2929 (collected 

 by Giler & Prieto). 



Paspalum paniculatum L. Syst. Nat. ed. 10. 2: 855. 1759. 



CHIMBORAZO: Canon of the Rio Chanchan near Huigra, 4000-4500 ft (mostly 

 scrub-chaparral, with a few seepages and small swamps along the river), E-2997, 



