ISCHEMUM. ANDROPOGONEJE (AUCT. EDUARDO HACKEL). 235 
pedicellatis pilosis; articulis quam pedicelli brevioribus, utrisque 
pilis ipsis paullo — duplo brevioribus ciliatis. — Andropogon fascicu- 
latus Steud. Synops. 1, p. 382. 
Culmi pro altitudine (60—100 em.) graciles, subsimplices. Vaginze 
arcte, inferiores internodia superantes, summa subinflata. Ligula 
sepius ciliata. Laminæ basi angustat®, glauco-virides, demum rufes- 
centes, utrinque v. subtus leviter pruinos®, margine læves v. scabe- 
rule, costa media crassiuscula supra latiuscule albo-lineata percur- 
sæ. Racemi 5—9 em. longi, pilosi; articuli spicula sessili '/,—2-plo, 
pedicelli ea '/,—'/, breviores. Spiculæ sessiles lanceolatze, superne 
rufescentes; gluma lI" basi coriacea, superius coriaceo-herbacea, 
dorso plano elevato-5-costata scabro-punetata v. parce et longiuscule 
pilosa, apice breviter acuteque bidentata, in '/, superiore anguste 
implicata, carinis anguste alatis, intus 7—9-nervis; II^ chartaceo- 
coriacea, lanceolata, aeuminata, mucronata v. breviter aristata, 
carina anguste marginata scabra, 3—5-nervis, dorso scaberula, mar- 
ginibus implicatis hyalinis ciliolata ; III* lanceolata, acuta, 1-nervis, 
glabra; palea 2-nervis; anthere 2 mm. longze; IV* et palea glabra. 
Spicule pedicellatze rufescentes. 
a. genuinum. Vagine superne pilosæ, nodis breviter barbatz. La- 
mins utrinque v. supra tantum appresse pilosulze, raro glabrescentes, 
margine scaberul&. Spieule sessilis gluma IF aristata, gluma IV: 
aristam 13—16 mm. longam exserens, columná fuscä quam subula 
leviter violascens laxe torta triplo breviore. Spiculæ pedicellatze callo 
longe pilos, glumis dense pilosis. Racemi sæpius terni, raro 2? v. 
4—5", — I. barbatum Baker Fl. Maur. p. 447, non Retz. 
Ins. Mauritius (Bojer, Boivin 1507, alii). | 
ß. arcuatum. Vaginz glabra (etiam nodis), scabrz. Laminæ gla- 
berrimz. Spiculæ sessilis gluma II“ breviter mucronata, IV* arista 
7—10 mm. longa, columnä intra glumas latente brevissima fuscä 
quam subula flavida reetiuscula duplo breviore. Spiculæ pedicellatze 
callo minute pilos®, glumis parcius pilosis. Racemi sepius terni, raro 
bini. — Spodiopogon arcuatus Nees! Fl. Afr. austr., p. 97; Andropo- 
gon arcuatus Steud. Synops. 1, p. 374. 
In Caffraria ad ripas fl. Key et inter Omtento et Omsamculo 
(Drege); Port Natal (Gneinzius in h. Vind.). 
30. 1. guianense (Kunth ! Revis. Gram. 1, p. 168); spiculis pedi- 
cellatis glabris; articulis pedicellos sequantibus pilis ipsis 3—4-plo 
brevioribus ciliatis. — Andropogon guianensis Steud. en 4, 
p- 382 LÀ 
