triandria-digynia .

329

Gussonio. Messana quoque obtinui a Prof. Schowio .Floret Julio.

Radix fibrosa . Culmi caespitosi , inferne decumbentes ,deinde surrecti, pedales, sesquipedales , teretes , arti-culati , simplices , vel inferne ramosi , superne atte-nuati. Folia lanceolato-linearia, acuminata, angusta,brevia, striata, ecarinata , margine deorsum strictuscabriuscula, juniora, vaginaque subinde pilosa, ba-si utrinque, et ad oram vaginae ciliata pilis longis,paucis, siccitate convoluta . Stipulae loco annulus pi-lorum brevissimus, densissimus . Panicula terminalis ,ramosa , flexuosa , in antliesi pyramidato-patens , po-stea contracta . Rami Fasciculati , fasciculis alterne indiversa directis . Flores geminati , pedunculati , pe-dunculis glabris, apice incrassatis. Calycis valvae duae,uni-biflorae, oblongae, acutae, muticae, aequales, mem-branaceae , nervosae, villis longis, patulis barbatae , etinvolucratae , viridi-purpurantes , aut pallide virentes .Flosculus solitarius hermaphroditus, vel duo, herma-phroditus , et masculus . Corolla hermaphroditi ca-lyce multo minor , bivalvis , laevissima, enervis , mu-tica , obtusiuscula, glabra, nitida, matura flavescens,persistens, valvis longitudine aequalibus, ovatis, exte-riore latiore , concava , interiorem amplexante . Sta-mina tria, in anthesi exerta, filamentis capillaribus ,antheris longis, luteis , polline exploso , utrinque bi-lurcis. Stili duo . Stigmata plumosa, albo-lutescen-tia, demum fusca . Caryopsis induviata. Flos mascu-lus gluma univalvis, vix calyce brevior, intra alteramex valvis calycinis firmiter retenta , membranacea ,mutica, et apice lacera, margine utrinque inflexa ,nervoque viridi, ciliato , et prope inflexum marginemexcurrente instructa . Stamina ut in hermaphrodito .r losculus iste in locustis inferioribus deest. Tota plan-ta glauca .

Haec species in horto hot. Bononiensi repetito sata sem—per annua evasit. An id ex loco, et climate?

2. Saccharum Ravenna:: panicula elongata , thyrsoide ;lana locustas unifloras aequante; calycibus inferne vil-losis ; valva corollina exteriore aristata; culmo bior-gyali, farcto ; foliis lato-linearibus .-S. Ravennae Syst. veg. edit. i 3 . p. 88., et ed. i^.. p. io 3 .Willd. Sp. pl.i-part. 1. p. 3a2. n. 9., et Enurn. 1. p. 82.n. 2. Pers. Syn. pl. 1. p. io 3 . n. 9. Spreng. Syst. veg. 1.p. 382. /i. i 5 . Sibth. et Smith. FI. Grcec. prodr. 1. p. 36 .,