240 MONOCOTYLEDONEE. ISCHEMUM. 
raro ternis, rhacheos articulis inferne pilis vix '/, articuli æquantibus 
laxe ciliatis, gluma I": carinis spinuloso-eiliolata. — Andropogon bra- 
ehyatherus Hochst. in Flora 1844 p. 241; Rich. Tent. Fl. Abyss. 2, 
p. 457. 
Culmi cum innovationibus basi vaginis emarcidis aggregatis tecti, 
1—1,2 m. alti, graciles, erecti, simplices, glaberrimi, striatuli, com- 
pressi, altero latere plani, altero subeonvexi, superne breviter nudi, 
haud inerassati. Vagin® glaberrim&. Ligula rotundato-truncata, 2— 
3 mm. longa, albo-membranacea, apice szpe erosa, ciliata v. glabra. 
Lamine medie 15—30 cm. long, 4—6 mm. lat, sensim setaceo- 
acuminatz, rigidule, glabrze, excepto margine scaberulo laves, ner- 
vis lateralibus supra prominentibus percurse. Racemi 8—12 cm. 
longi, erassiuseuli, alter pedunculo 7—10 mm. longo fultus, strieti, 
erecti, brunnescentes v. violaceo-suffusi, pilosuli; articuli spicula 
duplo v. subduplo breviores, crassissimi, clavati, dorso nune glabri 
nitidi, nune in '/, inferiore appresse pubescentes. Spicule sessiles 
eum callo obsoleto breviter barbato 7—8 mm. longz, lanceolatæ ; 
gluma I^ a '/, inferiore acutata, apice subobliquo minute bidentula, 
chartacea, marginibus per totum decursum implicatis, dorso subcon- 
cavo presertim inferne pilis longiusculis rigidulis appressis tecta, 
prieter nervos earinales 3—Ö5-nervis, nervis anastomosantibus, inter- 
medio abbreviato ; II“ ovato-laneeolata, navicularis, acuminata, carina 
superne sinuata spinulosa, ad latera pilosula v. glabra, marginibus 
hyalinis ciliolata, 5-nervis, nervis lateralibus tenerrimis ; II I" sub- 
iequans, hyalina, lanceolata, acuta, marginibus implicata, subenervis, 
glabra, ejus palea »quilonga, membranacea, enervis, glabra; floris c? 
antherz 2 mm. long& ; gluma IV* quam II“ '/, brevior, late lanceo- 
lata, ad '/, usque in laeinias 2 obtusiusculas glabras fissa, inferne 3- 
nervis, aristam emittens 7—10 mm. longam columnä intra glumas 
latente quam subula basi subeontorta paullo breviore ; palea gluma 
paullo brevior, ut in flore g’. Pedicelli spieularum primariarum arti- 
culis paullo longiores, oblongi, complanati, crassi, angulo interiore 
ciliati, inferne sepe appresse pilosuli ; spicule pedicellate 3—4 mm. 
longe, lineari-lanceolatze, ad glumam I" acuminatam 5-nervem cari- 
nis scabram dorso glabrescentem II^» que brevissimam redaetze. 
Abyssinia : in paludosis planitiei montanze Walcha (Schimp. 1635) ; 
Sennaar (Roziani in h. Vind.); Kordofan (Kotschy pl. nub. 368); Gal- 
labat (Schweinfurth 1101). 
34. I. pilosum ; racemis 3—6"*5; articulis glumaque I pilis — 
