454 MONOCOTYLEDONEE. ANDROPOGON. 
convoluto-filiformibus ; ligula brevissima ; rhacheos articulis apice 
cupulatis, aristæ columna albo-hirtula. — Heteropogon filifolius Nees ! 
Fl. Afr. austr. p. 102. 
Dense cæspitosus, innovationibus intravaginalibus. Culmi 40—70 em. 
alti, 2—4-nodes, compressiuseuli, lateribus internodiorum alternis sul- 
cati. Vaginæ internodiis breviores, basilares firmæ, emortuæ diu 
persistentes culmum innovationesque dense tunicantes. Ligula trun- 
cata, membranacea, glabra v. fimbriata. Lamin® innovationum 20— 
30 em. longe, culmeæ breves, diametro 0,5—-1 mm., vetustz s&pis- 
sime undato-flexuosz, firmze, virides, glaberrimz, sectione transversa 
suborbiculares, superne profunde canaliculatz, intus medullosz, peri- 
pheria nervoss. Racemi circ. 7 em. longi, crassi, alter sessilis, alter 
pedunculo 8—10 mm. longo fultus ; articuli spiculam sessilem sequan- 
tes (pedicelli ea paullo brevior), lineari-clavati, cupula profunda 
- inzequaliter dentata coronati, utrinque ciliis densis canescentibus infra 
apicem desinentibus articulo multoties brevioribus vestiti. Spiculæ 
sessiles cum callo 4 mm. longo 13 mm. long, a latere visæ lineari- 
lanceolate, livide : gluma I" linearis, coriaceo-herbacea, obtusius- 
cula, apice brevissime scarioso bidentula, marginibus late implicatis, 
carinis leevibus, dorso profunde canaliculata, glabra, praeter carinas 
enervis; II“ I" æquans, chartacea, naviculari-lanceolata, acuta, 
mutica, carina lsevi, 1-nervis, ciliolata ; IIT* I^? æquans, oblonga, obtusa, 
~ binervis, ciliata ; IV* quam II“ '/, brevior, oblonga, in '/, superiore 
bifida, lobis lanceolatis glabris, basi trinervis, arista valida 55 mm. 
longa jam in '/, glumæ conerescente ; palea quam gluma IV* duplo 
brevior, ovata, acuta, enervis, glabra; anthere 4,5 mm. longs. 
Stigmata linearia. Spiculæ pedicellate g, 15 mm. longs, oblique 
lanceolatz, ssepius livide violascentes, plus minus tort»: gluma I™ 
herbacea, acuta, bidentula, altero dente in setam ipsa 3-plo longiorem 
abeunte, carinis scabris, nervis quam 20 pluribus ; II» parum brevior, 
membranacea, 3-nervis, ciliolata ; III: lineari-lanceolata, acuta, 3-ner- 
vis, marginibus implicatis vix ciliolatis; IV* lineari-oblonga, 1-nervis, 
glabra, II æquans ; palea linearis, duplo brevior, enervis; anther& 
7 mm.! longa. 
Africa australis, loco non indie. Burchell 4096 ; in terrze Capensis 
silvis primzvis jugi Olifantsheek ad flumen Boschmanrivier et montis 
Tigerberg (Ecklon); in montibus Zuurebergen alt. 800—1000 m. 
(Drége). 
12. A. annuus (Hack. in Flora 1885, p. 137) ; annuus, laminis 
