TRIANDRIA-DIGYNIA. 4?^ 



Perenn. Povenit copiose in nniversa Italia m campis , 

 vineis , et etiarn in palustribus . Legi Sarzanse , Ge- 

 nuae , Bononise in collibus , et vineis , in campis , et 

 in canalibus . Habui ex arvis Italiae superioris a Pol- 

 xiNio , Roma a Prof. Sebastianio , ex paludibus Ter- 

 racinensibus a Fiorinia-Mazzaktia, Panormo ab Eq. 

 Bivona-Berwahuio , ex Corsica a Bastia a Soleiro- 

 Lio. Floret ab Augusto in serum Octobrem . 

 Radix tuberosa , repens , articulata , gemraipara , alba , 

 articulis vagina brevi , lacera circumdatis , fibris de- 

 scendentibus ramulosis, longis. Gulmus erectus, com- 

 presso-teres, crassus, intus farctus medulla alba, spon- 

 giosa , cffispitosus , tenuissime striatus , glaber , super- 

 ne demum nudns , in siccis bi-tripedalis , in palustn- 

 bus etiam orgyalis. Folia late lanceolato-Iinearia, lon- 

 gissirae acumiiiato-setacea , nervo carinali dirempta , 

 striata, margine , et carina suprema deorsum scaber- 

 rima , reliqua parte glaLra , basi prope stipulam pu- 

 bescentia . Vagiuje compressaj , striatae , glabrse , supe- 

 riores longiores. Stipula brevis, truncata, multifatnata, 

 in ora dense ciliata , alba , rubroque maculata . Pa- 

 nicula terminalis, in anthesi erecto-patula, pyramida- 

 ta , etiam semipedalis . Rami ejus modo cuncti alter- 

 ni, modo inferiores duo-tres subverticillati j omnes in- 

 ierne simplices , nudi , superne divisi , et locustiferi , 

 tenues, ilexuosi, striati, scabri. Rachis primaria mul- 

 tiangulata , scaberrima, prsesertim superne. Flores ge- 

 niinati, vel summi ternatij hermapbrodito semper so- 

 litario , sessili ; masculo solitario , vel gem.inis , pedi- 

 cellatis. Locustse in ramis paniculae approxiraatae , im- 

 bricatae , secundje , oblongse , compressse , acumuiatEe , 

 passim ex viridi purpurantes. Flos hermaphroditus ses- 

 silis juxta masculum, vel in summitate ramorum me- 

 dius inter duos masculos . Galyx gluma cartilaginea , 

 bivalvis , nitida , plus minus villosa , valvis longi- 

 tudine subiBqualibus , exteriore latiore , ovata , dorso 

 complanata , margine intlexa , apice tridentata , den- 

 tibus acutis , medio aliquantisper longiore , superne 

 quinquenervi , nerro utrinque prope marginem intle- 

 xum ciliato ; valva interiore angustiore , oblongo-Ian- 

 ceolata , apice acuta , integra , vel erosula , margine 

 inflexa , superne carinato-triquetra , et quidquam vil- 

 losa. Gluma corollina inclusa, albo-raembranacea, te- 

 nuissima, hyalina, inaequivalvis; valva exteriore majo- 

 re, longitndine calycis , ovato-oblonga , acuta , a[uce 



