HITCHCOCK—GRASSES OF CUBA. 199 
bears the secondary number 206. The specimen in the Gray Herbarium is labeled, 
‘Wet savannas, Candelaria, June 5, 1860-64." The type of Panicum oxyanthum 
Steud. labeled ‘‘Ins. St. Domingo, Legit Poiteau 1802 cf. hrbr Delessert 54” in the 
museum at Paris, isa small specimen of this species; that in the Delessert Herbarium 
is a good specimen. 
2. Reimarochloa oligostachya (Munro). 
Reimaria oligostachya Munro; Benth, Journ. Linn. Soc. 19: 34. 1882. 
Wright 3854 in National Herbarium. 
This number of Wright’s is mentioned in the original description, though the 
type is Curtiss 3566 from Florida, The specimen in the Sauvalle Herbarium with 
the number 3854 is Paspalum vaginatum Sw. In the Grisebach Herbarium is a 
specimen of Reimarochloa oligostachya labeled ‘‘Damp ground around ponds Hana- 
bana,” 1865, and bearing the secondary number 180. The sheet of Wright 3854 
in the Gray Herbarium bears two plants of K. oligostachya and one of Paspalum 
distichum. 
19. PASPALUM I. Syst. ed. 10, 855. 1759. 
d 
— 
Rachis dilated and membranaceous. ....------------------+++++- 9. P, dissectum. 
Rachis not dilated and membranaceous. 
Racemes terminal and also from the uppermost sheath. 
Blades pubescent on both surfaces.......-.---+------- 7. 2. 
Blades glabrous or nearly so, often ciliate on margins. 
Blades ciliate, 4 to 5 mm. wide..........----------25. P. 
Blades not ciliate. 
‘Blades less than 2 mm. wide; first glume 
obsolete......------- 2-5-2 - 2-22 e eee eee eee 27. P. rigidifolium. 
Blades about 1 cm. wide; first glume present. .23. P. pedunculatum. 
Racemes terminal only. 
Racemes in pairs—that is, normally 2 and approxi- 
~~ 
debile. 
~ 
propinquum., 
~ 
mate. 
Plants with creeping rootstocks. 
Spikelets pubescent on convex surface......-- 10. P. distichum. 
Spikelets glabrous on convex surface.........- 30. P. vaginatum. 
Plants without creeping rootstocks. 
Both glumes obsolete.....-...------------+-- 26. P. pulchellum. 
First glume only obsolete. 
Spikelets circular 1.5 mm. long or less. 
Spikelets papillose or nearly glabrous. . 2: . papillosum. 
Spikelets villous on the margins . -.-- 6. P. conjugatum. 
Spikelets lanceolate or elliptical, 2 mm. 
long or more. 
Spikelets loosely imbricated; spikes 
bo 
bo 
SS 
ascending.......--------+----------15. P. lineare. 
Spikelets densely imbricated; spikes 
spreading. 
Spikelets 2 mm. long.....-------- 18. P. minus. 
Spikelets 3 mm. long.......------ 20. P. notatum. 
Racemes 1 to several; if 2, the lower at some distance 
below the terminal and the number not constant. 
“Racemes usually 1, sometimes 2. 
Spikelets transversely wrinkled. 
Blades involute, glabrous, elongated, 40 
to 60 em. long...--.-----------------++- 12. P. filiforme. 
Blades flat, pubescent, 5 to 15 em. long. ..19. P. nanum, 
