MANUAL OF THE GRASSES OF THE WEST INDIES 419 
Racemes compressed, tardily disarticulating___._____________ 1. M. autTissmma. 
Racemes cylindric or nearly so, readily disarticulating. 
First glume emarginate and winged above______________--__ 2. MM. AURITA. 
First glume not winged. 
Blades flat; sheaths compressed-keeled. First glume roughened or wrinkled — 
COMA MSS Oe weevalyy Soaps eb 3. M. TUBERCULOSA. 
Blades involute; sheaths cylindric, not keeled. 
First glume strongly transverse-rugose__._.___._.________ 4. M. LoricaTa. 
ILS TRS MIME DOLMU COSC ee eeotel ee eenenamnn aire yh bh NEY FS 5. M. IMPRESSA. 
1. Manisuris altissima (Poir.) Hitche., Jour. Wash. Acad. Sci. 24: 
292. 1934. 
Rottboeilia altissima Poir., Voy. Barb. 2: 105. 1789. Barbary. 
Rottboellia fasciculata Lam., Tabl. Encycl.1: 204. 1791. Barbary. 
Hemarihria fasciculata Kunth, Rév.Gram.1: 153. 1829. 
Rottboelia compressa var. fasciculata Hack., in DC., 
Monogr. Phan. 6: 286. 1889. 
Mamnsuris fasciculata Hitche., Amer. Jour. 
Bote 227299.) 19s: 
Hemarthria altissima Stapf and Hubbard, 
Kew Bull. Misc? Inf. 1934: 109. 1984. 
Culms erect or spreading, compressed, slen- 
der, glabrous, 50 to 100 cm tall; blades flat or 
folded, 2 to 5 mm wide; racemes 5 to 10 cm 
long, falcate, from several of the upper sheaths 
(fig. 369). 
Shallow water, ditches, and moist ground. 
An Old World species introduced into the 
American Tropics. Mexico and Jamaica to 
Argentina. 
JAMAICA: Black River, Harris 12550, 12874. 
2. Manisuris aurita (Steud.) Hitchc. and Chase, 
Contrib. U.S. Natl. Herb. 18: 276. 1917. 
— FIGURE 370.— 
Br ee Rottboellia aurita Steud., Syn. Pl. Glum. 1: ““Xrenisutis 
ae ool 18545) Brazil. | et: 
cock). Culms erect, glabrous, 1 to 1.5 m tall; blades _1074). 
flat or folded, 4 to 8 mm wide; racemes mostly 5 
to 10 cm long, included at base in the upper sheaths or exserted; sessile 
spikelets 4 mm long, the first glume smooth or indistinctly pitted. 
Grassy hillsides, Brazil to Trinidad; in the latter known from a 
specimen in the Gray Herbarium collected by Finlay (Bot. Gard. 
Herb. 2304). 
3. Manisuris tuberculosa Nash, Bull. N. Y. Bot. Gard. 1: 4380. 
1900. Florida. 
Coelorachis tuberculosa Nash, N. Amer. Fl. 17: 86. 1909. 
Culms erect, 1 to 1.5 m tall; sheaths compressed-keeled; blades 
flat; racemes several, slender, 2 to 5 cm long; joints about 5 mm 
long (fig. 370). 
Swampy places, Florida and Cuba. 
Cusa: Laguna Santa Maria, Hkman 17260. 
4, Manisuris loricata (Trin.) Kuntze, Rev. Gen. Pl. 2: 780. 1891. 
Rottboellia loricata Trin., Mém. Acad. St. Pétersb. VI. Math. 
iRivem Nat. 2; 250, 1832. Brazil. 
Rottboellia filifolia Wright, An. Acad. Cien. Habana 8: 209. 1871. 
Cuba, Wright 3905. 
