GRASSES OF PoRTO Rico 373 
4. DIECTOMIS H.B.K. Nov. Gen. & Sp. 1: 193. 1815 
1. DrEcToMIs FAstTiGIATA (Sw.) H.B.K. Nov. Gen. & Sp. 1: 193, 
pl. 64. 1815. 
Andropogon fastigiatus Sw. Prod. 26. 1788. 
Meadows on Mt. Santano, Coamo, Sintenis 3247. 
5. ANDROPOGON L. Sp. Pl. 1043. 1753 
Racemes not surrounded by bracts: spikelets awnless: foliage not lemon-scented. 
Stems tall and stout, the inflorescence large and much-branched. 
1. A. bicornis. 
Stems low, tufted, slender, the inflorescence slender and consisting of but few 
branches. 2. A. leucostachys. 
Racemes surrounded by sheathing bracts : spikelets awned : foliage lemon-scented. 
3. A. Nardus. 
I. ANPROPOGON BICORNIS L. Sp. Pl. 1043. 1753. 
In dry soil, frequent. Luquillo Mts., Wilson 226; Santurce, 
Heller 597. : 
2. ANDROPOGON LEUCosTACHYs H.B.K. Nov. Gen. & Sp. 1: 187. 
1815. : 
Sandy soil, frequent. Heller 933, 984 and 4396; Goll 326. 
3. AnDROoPOGON Narbus L. Sp. Pl. 1046. 1753. 
Santurce, Heller 229 (leaves only). The immature character 
of the only specimen of this grass we have seen from Porto Rico 
makes its definite determination impossible. In leaf character it 
strongly resembles this species. 
6. ANTHEPHORA Schreb. Beschr. Graes. 3: 105. 1810 
1. ANTHEPHORA HERMAPHRODITA (L.) Kuntze, Rev. Gen. 759. 
1891. 
Tripsacum hermaphroditum L. Syst. Ed. to, 1201: 9759: 
Anthephora elegans Schreb. Beschr. Graes. 3: 105. 1810. 
In waste places, frequent. Santurce, Heller 165 and 1348. 
_ 7- ARUNDINELLA Raddi, Agrost. Bras. 37, pe YT. 1823 
1. ARUNDINELLA MArTINICENSIS Trin. Gram. Pan. 62. 1826. 
Caguas, Heller, 934 ; Mayaguez, Heller, 4355 ; Adjuntas road, 
near Ponce, Heller 6256. 
