i84 P A N I c E A E. Penj}isclum. 



rcnniscliim peJicellalnm. Tliyisis aliqiiol c vaginis siipcrioribus rasciculnlo-iirdiin- 

 culalis, tlcnsis (iillmpalmaribiis); Involuccllis scssilihus, nni(loris: sclis in- 

 aequalibus: omnibus pUimosissimisi inlcrioribiis spicula (ixiliccllal.i) plus 

 (luplo longioribus: unica (paulo) proiluctiori: ("iliimo infcriorc flosculis tpiar- 

 tam terliamvc parlcm brcviori, superiorc cosdcm supcranle; llermaplirodilo 

 apicc barbulalo, raasculo bivalvi paulo minon ; loliis bneanbus, glabris. 



A . spp. c Cap. vlr. 

 Culmus (abscissus) vidclur dccumbens, 2 — 5 pcdalis? (supernc) ramosis- 

 simus, nodis glabris. J^aginae glabiae. Ligula brcvissima, mcmbranacca, 

 cHiatiila. Folia comprcssa 1. plana (superiora lincas 2 lata rl palin;iria). E 

 va^inis supcrioribns pcdunculi 2 — o, supcrne itcrum vaginati, vagina bacce 

 tbvrsum basi involucranle. Thyrsus sordidc gilvesccns. jljiis ^laber. Selae 

 numcrosissimae, infcrne dcnse plumosac. Pcdicellus spiculac lincam longus, 

 viUis lcnuissimis crispis vcstitus. Spiculae, dcmto involucro, 2-lincaIes, basi 

 lana lenuissima involuccllatae. Gluma inferior 1-nervis, supcrior acuta, 5- 

 ncrvis. Flosc. masc. valvulae panam inaequales: infcrior 5-ncrvis: ncrvis, ut 

 gliimaruni , lcnuibus. Lodicula nulla. Slyli . . . 



b. Spiculac , intra involiicium pcdiccllalae , hasi nudae , ad pcdiccUi sui basin 

 iniohucllalae (PeniCILLARU). 



(.4xis crassior, puhesccns. Jmv/ucra pcdiccllala spiculas suhae- 

 quanlia. Hcrmaphrodilus coriaceus). 



Pcnniselum hphoidcs liich. Tliyrso cylindracco, dcnsissimo (l — 2 — 3-polli- 

 cari); liivolucri 2 — 3-flori selis iuterioribus pl. niin. plumosis; Gluma 

 ulraque obsolela vel pusilla (aul superiore perparva): Ilermaphrodilo acuto, 

 masciiluni 1. neutrum bivalvem cxcedenlc; 1 olils lauccolato-lincaribus, (in 

 sponlan.) lubcrculalo-pilosis. 



Panicum amciicanum L. sp. j)l. cd. l. 



Holcus spicalus L. sp. pL ed. 2. 



