Panicum. Virgaria. Paniceae. 263 



Panicum anceps Mchx. Radiis virgalis, a basi composhis, paniculalo-jubatis, pa- 

 tulis; Radiolis plerumque contractiusculis; Pedicellis spicula brevioiibus • 

 Spiculls subultralinealibus, subarcuato- ovato-lanceolatis, acuminatis, gla- 

 brls; Gluma inferiore flosculis plus duplo bieviori, 3-, superiore (eosdem 

 subexcedentc) 7 -nervi; Herraaphrodito (neutre | minoii) obtuso, apice bre- 

 vissime barbulato, laevi; Foliis (latiusculo-) linearibus, glabris. 

 Panicum anceps. R. et S. II. p. 444. Mant. 2. p. 241. Ktli. Agr. syn 

 p. 114. — P. roslratum Mûhlenb. — an P. pennsylvanicum Sprgl. 



V. spp. Am. bor. 

 Culmus 3 — 4-pedalis, compressus, simples. T^aginae praesertim superne 

 pllosulae. Folia laliora lineas 5 lata, fere 2-pedalia, supremum saepe pani- 

 culam subaequans 1. excedens. Panicula dodrantalis — pedalis. Radii solitarii 

 vel aliquct conferti, 3 — 4-pollicares. RacemuU serai — sub- 1-pollicares. 

 Spiculae pallide virides. Flosculus neuter 2- val vis. 

 Panicum riintlare, Radiis raccmoso-virgatis, (exceptis infimis) a basi compositis, 

 paniculato-jubalis, racemuhsque conlractis; Pedicellis brevissimis; Spiculis 

 sublinealibus, llneari-elliplicis, obtusiusculis, glabris; Gluma Inferiore flos- 

 culis duplo breviori, 3-, superiore (iisdera paulo minori) 3 — 5 -nervi; 

 Hermaphrodite acutlusculo, apice subbarbulato, laevi; Foliis linearibus, gla- 

 bris (longissimis). 

 Panicum rii'ulare Trin. Diss. II. p. 213. In. gr. XXII. tab. 264. N. ab Es. 

 Agr. bras. p. 181. 



V. spp. Bras. 

 Culmus 4 — 6 -pedalis, simplex. Vaginae glabrae. /«//a licrbacea vel sub- 

 coriacea: illa plana, lineas 5 lata; haec compresse -concava et mullo angusliora; 

 inferlora interdum 3 — 4-pedalla. Juba panicularis 1 — 2 -pedalis, fusces- 

 cendo-virens, satis densa. liacemi solitarii I. aliquot pseudoverlicillali. Race- 

 muU seml — 1-polllcares. Fiusc. neut. 1 — 2-vn!vis. 



