198 MISC. PUBLICATION 243, U.S. DEPT. OF AGRICULTURE 
involute; racemes 2 to 7, 1 to 2 cm distant, 1 to 6 cm long; rachis 
3 to 4 mm wide, the margins membranaceous; spikelets about 2.5 
mm long, partially hidden by the copious white hairs; one hair of the 
marginal fringe bristlelike, much exceeding the others (fig. 124). 
Open grassy hillsides and savannas, Panama to Peru and southern 
Brazil; Hispaniola. 
Haiti: St. Michel, Buch 1091; Leonard 7537, 7793, 7795a. Mire- 
balais, Hkman H 2274. 
ZA Ennery, Leonard 8957. 
; Morne Faure, Christ 1800. 
Miragoane, Hkman H 
7247. Trouin, Ekman H 2401. 
Furcy, Leonard 4298. 
Dominican Repusuic: Con- 
stanza, Hkman H 14018. San 
Juan, Ekman H 13404. 
3. Paspalum dissectum (L.) L., 
SOLE el Bs Sil, 72, 
Panicum dissectum L., Sp. Pl. 
07. 1753. (Probably Delaware.) 
Subaquatic perennial; culms 
creeping, rooting at the nodes, the 
flowering branches ascending; 
blades flat, thin, 3 to 6 cm long, 
4 to 5mm wide; inflorescence ter- 
minal and axillary; racemes 2 to 4, 
2 to3cm long, usually erect, falling 
entire, the rachis membranaceous, 
2 to 3 mm wide; spikelets 2 mm 
long (fig. 125). 
On muddy or sandy banks of 
ponds and ditches or in shallow 
e VY. water, southeastern United States; 
j Cuba. 
FIGURE 124.—Paspalum heterotrichon. Panicl CUB Peeuue Santa anes 
1; two eral soles Gh, anal Has SC 16 Ekman 17269. Handbana, YW right 
(type and Malme 1562B). 1691n 1865. Eastern Cuba, Wright 
3440. 
4, Paspalum serratum Hitche. and Chase, Contrib. U.S. Natl. Herb. 
18: 306. 1917. Jamaica, Hitchcock 9795. 
Aquatic glabrous perennial; culms as much as 1.7 m long; blades 
flat, soft, thin, 4 to 9 cm long, 3 to 7 mm wide; racemes 2, rarely 1, 
12 to 15 mm distant, 3 to 5 cm long; rachis about 3 mm wide; spikelets 
about 3.3 mm long (fig. 126). 
In ponds and sluggish streams, Cuba and Jamaica. 
Cusa: Jagiiey Chico, Hkman 16990. 
Jamaica: Troy, Hitchcock 9795; Harris 12582, 12598. Inverness, 
Flarris 12719. Without locality, Alexander. 
5. Paspalum repens Bergius, Act. Helv. Phys. Math. 7: 129. pl. 7. 
1762. Dutch Guiana. 
Aquatic perennial, the submerged culms as much as 2 m long, 
with inflated sheaths; blades flat, 10 to 20 cm long, 12 to 15 min 
Yo tss 
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