212 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
‘‘Pinales, Daganiguas, Almicigos, Sept.’’ Panicum sclerochloa Trin.” (Mesose- 
tum sclerochloa (Trin.)) of Brazil, the type of which is in the Trinius Herba- 
rium, differs in having glabrous blades, spikelets 5 mm. long, somewhat scabrous 
but not hispid, and glumes and lemmas all notched near the apex, hence some- 
what 3-lobed. In Sauvalle’s Flora Cubana Wright 3859 is doubtfully referred to 
Panicum sclerochloa Trin. 
28. BRACHIARIA Griseb. in Ledeb. Fl. Ross. 4: 469. 1853. 
1. Brachiaria plantaginea (Link). 
Panicum plantagineum Link, Hort. Berol. 1: 206. 1827. 
Panicum leandri Trin. leon. 335, 1836. 
Paspalum platyphyllum Griseb. Cat. Pl. Cub. 230. 1866. 
Panicum platyphyllum Munro; Vasey, U. 8.*Dept. Agr. Div. Bot. Bull. 8: 25. 
1889. 
Brachiaria platyphylla Nash in Small, Fl. Southeast. U.S. 81. 1903. 
Wright 3853, 3441; in dense patches in pasture, Sabinilla, June, Wright 3867. 
The type of Link’s speciesisin the Berlin Herbarium. Wright's $853 in the Sauvalle 
Herbarium bears the secondary number 174. In the Grisebach Herbarium are two 
specimens, the type of Paspalum platyphyllum from western Cuba, 1863, numbered 
§892—=3441" and no. 174 labeled, ‘Damp places in roads and elsewhere, Zarabanda, 
May 4.”’ This species is placed in the genus Brachiaria because the spikelets are 
placed with the first glume toward the rachis. 
29. HYMENACHNE Beauv. Agrost. 48. p/. 10. f. 8. 1812. 
Inflorescence spike-like; spikelets 4 mm. long..........-------- Ll. H. amplexicaults. 
Inflorescence of numerous spikes, 1 to 3 cm. long; spikelets 2 to 
3mm, long.............2..-.. 2.000 e eee eee eee eee eee eee eeee 2. H. auriculata. 
1. Hymenachne amplexicaulis (Rudge) Nees, Agrost. Bras. 276. 1829. 
Panicum amplexicaule Rudge, Pl. Guian. 1: 21. 1805. 
Panicum hymenachne Desv. Opusc. 82. 1831. 
Panicum myuros of authors, not Lam.?. 
Wright 3469; Santiago de las Vegas, Hitchcock in 1906; Habana, Leon 559; Guines, 
Leon 577. 
The specimen in the Grisebach Herbarium is from eastern Cuba, 1860, and is num- 
bered ‘‘108=3469.’’ No.3469 in the Gray Herbarium is from ‘‘ Margin of Rio Bayamo, 
Oct. 14.” 
2. Hymenachne auriculata (Willd.) Chase, Proc. Biol. Soc. Wash. 21: 5. 1908. 
Panicum auriculatum Willd.; Spreng. Syst. 1: 322. 1825. 
Wright 3863 in part. 
There are three labels with this specimen in the Sauvalle Herbarium, ‘‘In ponds, 
Daganiguas, Sept.,’’ ‘Wet margin of lagunas, Sta. Cruz de los Pifios, Nov. 10,’’ ‘‘ Low 
marshy lands, Gruanimar, Nov.’’ On the same sheet is a specimen of Panicum con- 
densum Nash, and one of I. Jarum Sw. 
The specimen of Ilymenachne is fragmentary, but appears to belong to this species. 
Wright’s 3863 in the National Herbarium is mixed with Panicum larum Sw. Wright’s 
3863 in the Gray Herbarium is mixed with 2. condensum. 
30. SACCIOLEPIS Nash in Britton, Man. 89. 1901. 
Spikelets 4 mm. long, on slender pedicels. ..............2.-.--------- .2. 8. striata. 
Spikelets 2 to 3 mm. long, subsessile. 
@Teon, 283. 1836. bSee Proc. Biol. Soc. Wash. 21: 1. 1908. 
