HITCHCOCK — GRASSES OF CUBA. 191 



6. ISCHAEMXJM L. Sp. PL 1049. 1753. 



1. Ischaemum rugosum Salisb. Icon. Stirp. Rar. 1791. 

 Madruga, Curtiss 533, "Wet ground beside railroad." 

 A native of southeastern Asia, introduced in Cuba. 



6. MANISURIS L. Mant. PI. 2: 164, 300. 1771. 



Outer glume transversely wrinkled 1. M. loricata. 



Outer glume with three longitudinal furrows 2. M. impressa. 



1. Manisuris loricata (Trin.) Kuntze, Rev. Gen. PI. 2: 780. 1891. 

 Rottboellia loricata Trin. Mem. Acad. Petersb. VI. 2: 250. 1833. 



Rotthoellia filifolia Wright, Anal. Acad. Cienc. Habana 8: 209. 1871; Fl. Cub. 200. 



Herradura, 5al'er HC 2963, Baler & Abarca HC 4181, Tracy 9059, Hitchcock in 

 1906; Dayaniguas, Wright ^90b. 



Trinius's type specimen, which comes from Serra" da Lapa, Brazil, has trans- 

 versely rugose outer glumes, as in the Wright specimen. 



2. Manisuris impressa (Griseb.) Kuntze, Rev. Gen. PL 2: 780. 1891. 

 Rottboellia impressa Griseb. Cat. PL Cub. 235. 1866. « 



El Salado, Wright 3904. 



The type specimen in Grisebach 's herbarium is accompanied by the printed blank 

 label with the year 1865, but no locality. The label also bears the secondary num- 

 ber 201. 



The specimen in the Sauvalle Herbarium is from El Salado and is numbered 3904. 

 The Wright specimen in the National Herbarium is numbered 3904 upon an 1865 

 label like that of the typ^. These may be all of the same collection. 



7. HACKELOCHLOA Kuntze, Rev. Gen. PL 2: 776. 1891. 



1. Hackelochloa granularis (L.) Kuntze, Rev. Gen. PL 2: 776. 1891. 



Cenchrus granularis L. Mant. 2: 575. 1771. 



Manisuris granularis Sw. Prod. 25. 1788. 



Punta Brava, Baker HC 4047; Madruga, Shafer 22, 65; Isle of Pines, Palmer & 

 Riley 1084, 1092, Curtiss 493; Habana, Leon 213; La Magdalena, Baker 6; without 

 locality, Wright 1553 in 1865; Herradura, Tracy 9100, 9101. 



The Grisebach specimen is Wright 1553, collected in eastern Cuba, 1859. Wright's 

 1553 in the Gray Herbarium is from "open grassy places at Saltadera, Sept. 11." 



8. TRACHYPOGON Nees, Agrost. Bras. 341. 1829. 



Awn appressed-pubescent 1 . T. Jilifolius. 



Awn strongly plumose 2. T. gouini. 



1. Trachypogon filifolius (Hack.) ^^i, . I V ^ -^ 

 Trachypogon polymorphus ^filifolius Hack, in DC. Mon. Phan. 6: 325. 1889. 



In small tlifts in pebbly pinales,^ October, Pinar del Rio, Wright 3893; in large 

 tufts, low damp pinales,« Pinar del 'Rio,' Wright 3892; Herradura, Baker HC 2155. 



This species is characterized by the elongated, closely convolute blades, the single 

 racemes, and the erect awn 4 cm. long, short-pilose below, and by being glabrous 

 throughout, except the slightly barbed nodes. Culm 100 to 150 cm. tall. 



2. Trachypogon gouini Fourn. Mex. PL 2: 66. 1886. 



Torteleza de la Cabana, Baker & Van Hermann HC without number; San Fran- 

 cisco de Paula near Habana, Leon 209; Habana, Leon 300; Triscornia, Tracy 9086. 

 Awn 7 to 8 cm. long, very plumose to the tip. 



a Pine woods. 



