ANDROPOGON.  ANDROPOGONEJE (AUCT. EDUARDO HACKEL). 549 
Culmi 80—110 em. alti, compressi, glaberrimi, sepius ab ima basi 
ramosi, etiam e nodis superioribus ramos floriferos breves (plerumque 
vaginà absconditos) agentes. Vaginse arctz, leves, superne versus 
margines pilosule, ssepius livide violascentes, internodiis breviores. 
Ligula ad marginem membranaceum angustissimum ciliolatum re- 
daeta. Laminz e basi sublatiore (etiam quam vagina latiore)subcordatä 
lineares, a basi sensim attenuatze, acutissimze, 12—18 cm. (summa 
2—3 em.) longs, 5—8 mm. lat&, subtus obscure virentes v. violas- 
centes, glaberrim& v. costa media setulos®, supra late virides et gla- 
berrimze, marginibus e tuberculis longe setoso-ciliatze v. delapsis pilis 
scaberrim&, rigidulze, costa media crassiuseula subtus acuta, supra 
latiuscule albo-lineata, nervis lateralibus non prominulis. Panicula 
terminalis exserta, late ovata, laxissima, rhachi angulis scabra, ramis 
inferioribus 2—4" subzequalibus paniculam mediam subaquantibus, 
patentibus scaberrimis in axillis glabris, eum spicula fertili in singulo 
ramo unica obliquissime articulatis, post delapsam spiculam cicatricem 
linearem eleganter flavo-ciliatam exhibentibus. Spieule sessiles cum 
callo 6 mm. longo valde attenuato acuto curvulo pilis rufescentibus 
sericeis brevibus dense barbato 15—17 mm. longe, lineari-oblongs, 
subcylindriez,, obtuse, demum fuliginose: gluma lI"* cartilaginea, 
apice non membranaceo latiuscule truncata, marginibus involuta, 
dorso convexo glabro nitente minute punctulata, versus apicem muri- 
culis minutis exasperata, obsoletissime 5-nervis; I“ I» æquans, 
coriacea, linearis, truncata, mucrone brevi rigido, infra apicem 
carinis 2 obtusis in sulcos decurrentibus notata, 3-nervis, dorso 
convexa, glabra, infra apicem murieulata; III* */, brevior, lineari- 
oblonga, truncata, ciliata, enervis; IV: seeundá paullo brevior, 
linearis, integra v. brevissime biloba, l-nervis; aristze validissimze 
columa superne flexuosa (non geniculata), scaberrima. Palea 0. 
Anthere 1,5 mm. longs. Spieule pedicellat® pedicellis scabris 
spieulam sessilem sequantibus insidentes, plerumque ad glumam I*» 
angustissime lineari-subulatam involutam 3-nervem scabram redaetze, 
rarius preter glumam I^» tum 12 mm. longam lanceolato-subulatam 
glumá IF“ lineari-lanceolatä, III* breviori lineari eiliatä instructze, 
semper vero neutra. In speciminibus fructiferis plerumque deficiunt, 
cum una cum pedicellis post anthesin facile decidant. 
Florida (Chapman, Garber, Curtiss N. Am. Pl. 3644"). — Omnium 
Andropogonearum longissime aristata, spieulis maximis. 
