374 Nash : Enumeration of the 



8. MONACHNE Beauv. Agrost. 49,/^- lo. 1S12 

 Eriochloa H.B.K. Nov. Gen. & Sp. i : 94, pi. 30,31. 18 15. 



Rachis of the inflorescence softly pubescent with short spreading hairs : outer scales of 

 the spikelet pubescent with many long stiff hairs. I. J/, punctata. 



Rachis merely scabrous on the angles : outer scales less pubescent and with shorter 

 finer hairs. 2. J/, subglabra. 



I. MONACHx\E PUNCTATA (L.). 



Milmm ptinctatiini L. Syst. Ed. lo, 872. 1759. 



Eriochloa punctata Hamilt. Prod. 5. 1825. 



Humacao, Blauner ; Adjuntas road, near Ponce, Heller 6298. 



2. Monachne subglabra sp. nov. 



A tall somewhat branching grass with rather broad, flat leaf- 

 blades. Stems 8-12 dm. long, glabrous, the nodes densely pu- 

 bescent with short, spreading hairs : leaves numerous ; sheaths 

 usually shorter than the internodes and much shorter than the 

 blades, ciliate on the margins, the lower ones papillose-hirsute 

 between the nerves ; ligule a ring of short hairs ; blades linear to 

 lanceolate, flat, ascending, or the longer ones drooping, glabrous, 

 very rough on the margins, long-acuminate at the apex, generally 

 narrowed toward the base, 1-3 dm. long and 7-17 mm. wide: 

 inflorescence finally somewhat exserted, the rachis hispidulous on 

 the ridges: racemes ascending, commonly 6- 10, the larger 4-6 

 cm. long, the rachis hispidulous on the margins and more or less 

 setiferous : spikelets on shorter pedicels which usually bear a few 

 long hairs, 3.5 mm. long and about 1.3 mm. wide, elliptic to 

 ovate-lanceolate, acute, a short semicircular first scale usually pres- 

 ent, the second and third scales about equal in length, acute, rather 

 sparingly pubescent with appressed hairs, 5 -nerved, the third scale 

 bearing in its axil a palet of equal length and a staminate flower, 

 the fourth scale about three fourths as long as the spikelet, elliptic, 

 mucronate, finely transverse-rugose. 



Collected at Martin Pena January 31, 1899, by Heller, no. 380. 

 9. PASPALUM L. Syst. Ed. lo, 855. 1759 



I. Racemes scattered along the axis of the inflorescence. 



a. Spikelets broadly elliptic to orbicular, one half as wide as long ; rachis of 

 racemes manifestly wing-margined. 

 * Spikelets not margined. 



Stems erect or nearly so, stout : leaf-blades long : outer scales of the 

 spikelet with a midnerve. 

 Spikelets glabrous. 



Third scale of the spikelet white or yellowish at maturity : basal 



