574 Description of some Gramineous Plants. [Sept. 



Stigmata ratione stylorum longa, ramis denticulatis. Caryopsis. 



Spicula? stipitata? flosculi minores, et superior interior rarius her- 

 maphroditus. 



Obs. Genus habitu quodamniodo Tripsaci, Hemarthria? accedens, 

 sed discrepans praecipue pedicellis flosculorum exteriorum glumisque 

 interioribus spicularum sessilium solutis, nee axi adnatis, flosculisque 

 exterioribus bipaleaceis masculis, nee unipaleaceis neutris. Ab 

 Ischaemo difl'ert praecipue palea exteriore flosculi hermaphroditi (supe- 

 rioris) mutica. 



Panicum Brunonianum. Wall, et Griff. Mss. 



Panicula effusa, spiculis 1 vel 2 infimis sessilibus et in axis excava- 

 tionibus seminidulantibus, reliquis exsertis ssepissime solitariis, rachilla 

 in aristam spiculam duplo superantem producta, foliis linearibus 3- 

 veniis vaginisque glabris, ligulis 3-dentatis. 



Hab. In aquis leniter currentibus profundis plagarum Bheels dicta- 

 rum prope Goalnagar ; florens Septembre. 



Gramen fiuitans : culmi longissimi, compressiusculi, ad geniculos ra- 

 dicantes. Vaginarum colla nuda. Ligula? dens intermedius minor. Folia 

 linearia, 2 — 3-uncialia, obtusiuscula, 3-venia, marginibus subsimplicibus 

 denticulatis. Panicula terminalis, ambitu ovata, sub glabra, axi inferne 

 tetragona et excavata. Spicula? 1 vel 2 infimae in excavationibus semi- 

 nidulantes ; reliquse exserta3 ssepissime solitarise ; rachilla scabra ultra 

 spiculam quamque si unica, ultra terminalem si geminata, in aristam 

 subulatam, antrorsum denticulatam producta. Gluma exterior minima, 

 membranacea, evenia, subcrenulata, decolorata ; interior lanceolata, 

 acuta, mutica, venosa (sub- 1 3-venia,) marginibus parum involutis 

 subciliatis. Flosculi dissimiles ; exterior masculus, duplo triplove 

 major : palea exterior glumae interiori similis, sed scabrellaet margines 

 magis involuti ; interior duplo minor breviorque, membranacea, glabra, 

 apice bifida, dente setiformi minimo interdum interjecto, venis 2 

 indistinctis infra apicem evanidis. Lodiculae 2, paleas interiori omnino 

 externa?, oblongae, subrhomboideae, integral. Stamina 3, antheris 

 rubro-sanguineis. Palese floris interioris fceminei membranacea?, mu- 

 tica?, OA/ato-lanceolatae, exterior evenia ! interior larior, magis obtusa et 

 involuta, incomplete bivenia. Staminum rudimenta tria. Lodiculae 

 2 angustae, interdum coaiita? ? Styli 2, ima basi coaliti, longi ; stigmata 

 plumosa, purpurascentia, ratione stylorum longissima. Caryopsis non 

 visa. 



This species belongs to the last section of this extensive genus, as 

 given in Mr. Brown's Prodromus ; it is interesting, as it seems to be 

 the only species of the section hitherto found out of New Holland. 



