ANDROPOGON, ANDROPOGONEE (AUCT. EDUARDO HACKEL). 455 
planis, ligula oblonga 2—3 mm. longa; rhacheos articulis apice non 
cupulatis, aristæ columna glabra seaberrima. 
Culmi 60—80 cm. alti. Ligula truncata, medio fusco-membranacea, 
lateribus subherbaceis in vaginam decurrentibus, glabra. Laminæ 
20—35 cm. longæ, angustissimæ (1—1,5 mm. latæ) sed planæ, folji 
summi setacea, flaccidulæ, demum rubentes, glabræ, margine supra- 
que scaberulæ, costa media crassiuscula plurinervi obtuse carinata 
supra late albolineata, nervis lateralibus paucis. Racemi 6—7 cm. 
longi, graciles, alter pedunculo 4—5 mm. longo fultus: articuli spicula 
sessili duplo breviores, lineares, crassiusculi, obliquissime disjun- 
gentes, disjuncti apice cicatricem lineari-oblongam postice dentiformi- 
protractam exhibentes, utrinque pennato-ciliati, ciliis rigidulis albis 
subzqualibus articuli !/, v. medium :equantibus. Spicule sessiles 
eum callo 3 mm. longo 11 mm. longe, lineares, flavo-virides : gluma 
I”: herbaceo-coriacea, obsolete bidentula, obtusa, marginibus involuta 
nec carinata, glabra, scabra, loco nervi medii suleo profundissimo 
diaphano notata, 6-nervis; II^ T*» subsuperans, naviculari-oblonga, 
acutiuscula, carina scabra, trinervis, przeter margines latiuscule hya- 
linos ciliatos coriaceo-herbacea, glabra ; IN" primä '/, brevior, oblonga, 
obtusa, binervis, ciliata; IV* III*" æquans, oblonga, basi 3-nervis, 
breviter bifida, lobis acutis ciliatis; arista validissima 80—90 mm. 
longa jam in '/, inferiore glumæ eoncrescens, columna pallide fusces- 
cente; palea quam gluma HI duplo brevior, linearis, truncata, ener- 
vis, glabra. Antherz 2,5 mm. long ; stigmata brevia, lineari-oblonga. 
Spiculz pedicellatze sessiles aaquantes v. subsuperantes, eum pedicello 
rectiuscule articulate, hoc apice subeupulato bidentulo, lineari-lan- 
ceolatz,, neutre : gluma I™ herbacea, acutissima, in aristam ipsa 
breviorem abiens, carinis spinoso-v. setoso-ciliata, 7—9-nervis, plana, 
glabra ; II“ brevior, lineari-lanceolata, acuminata, 3-nervis, membra- 
nacea; reliqua preter glum& HI vestigia nulla. Utriusque racemi 
spicula sessilis ima neutra biglumis. 
Africa centralis in terra Djur ad Seriba Ghattas (Schweinfurth 
ser. III, n. 183). 
$2. Spieule sessilis gluma II* aristata, arista glumam :equante v. 
superante rarius ea duplo breviore. — Racemi ua Yariseime tertio 
v. quarto aucti. Stamina semper 3 (n. 73—82). Bs 
A. Spicul ilis a latere compresse gluma I"* inter carinas profunde depressa 
