219 i MONOCOTYLEDONER. ISCHEMUM. 
1° Spieulz pedicellate muticæ v. brevissime mueronat®, biflore flore superiore g v. d „rarissime, 
(et non nisi forte in eadem specie ubi ad normam bifloræ sunt), neutre (n. 7—14 
* Articuli pedicellique basi fere rectilinei v. leviter exeisi nec vero ita ut inter illos et spicu- 
lam porus orbicularis ee — Perennia. Lamins rigidz. Racemi crassi, articulis 
crassis. Gluma Ima carinis plus minus alata; Ilda Jam gquans, in !/, superiore carina- 
ta, carina non Farin mutica v. mucronulata; III paullo brevior, marginibus hyali- 
nis implicatis. Palea similis, chartacea, xil -nervis; IVa ovato-lanceolata, mem- 
branacea, 3-nervis (raro 7-nervis); ejus palea glumam subsuperans, acutissima, 2-nervis 
v. subenervis. Stigmata stylos plerumque æquantia (n. 7—10). 
t Gluma IV" spiculæ sessilis mucronata v. aristam imperfectam 2—6 mm. longam e glumis baud v. parum 
exserlam ferens (n. 7—9). 
7. I. muticum (Linn. Spec. pl. ed. 1., p. 1049); eulmis prostra- 
tis, ramis breviter erectis, ad apicem usque foliatis; gluma I" spieulae 
sessilis extus enervi, lævi, IV* mucronata v. minute aristulata. — 
Gærtn. Carpol. Suppl. t. 181; I. repens Roxb. Fl. Ind. ed. Carey, 1 
p. 323; I. glabratum J. Presl! in C. B. Presl Reliqu. Haenk. 1, p. 
328; Andropogon mutieus, repens, polymorphus et relietus Steud. 
Synops. 1, pp. 374, 315, 377. 
Culmi longe lateque prostrati, ad genicula radicantes, demum eum 
ramis ascendentes, robusti, subeompressi, nodis inferioribus approxi- 
matis, glaberrimi, apice subelavati. Vagin:z internodia plerumque 
superantes, teretiuseula, praeter summam arctze, costat&, nodis gla- 
brz, superne prsesertim versus margines plus minusve appresse villogz, 
villis basi tuberculatis, ore obsolete biauriculatze, summa inflata race- 
morum basin fovens, aphylla v. laminze rudimento instructa. Ligula 
brevissima, truncata, chartacea, glabra v. ciliolata, in vaginze aurieu- 
las abiens. Laminz brevissime petiolat® (petiolo 1 mm. longo), e basi 
cordata lineari-lanceolat& v. lanceolatze, fere ab ipsa basi angustat:e, 
acuminatz,, medie culmi 3— 16 em. long, superiores inferioresque 
decrescentes, 6—16 mm. late, patentes, subeoriacez, siccando nigres- 
centes, glabræ v. supra versus basin pilis tuberculatis paucis adsper- 
sæ, excepto margine scabro sepe undulato læves, nervis lateralibus 
primariis utrinque 4—5, secundariis et tertianis crebris. Racemi 
2,5—4 em. longi, alter pedunculo 5 mm. longo glabro fultus; artieuli 
pedicellique spicula 2 hi ' ,, illi '/, —subduplo breviores, angulo inter- 
no inferne breviter eiliati, reliquis glabri scabrique. Spiculæ sessiles 
cum callo glaberrimo 2 mm. longo 8—9 mm. long:e, obovato-lanceola- 
tæ, recte, stramineze; gluma I"* coriacea, fere deltoideo-acutata, 
