550 MONOCOTYLEDONEJA. ANDROPOGON. 
122. A. Gryllus (Linn. in Amæn. Acad. 4, p. 332); elatus, peren- 
nis; panicula multiflora 8—30 cm. longa ramis verticillatis 8—30", 
spicule 8 7—10 mm. longæ gluma II® aristata, arista gluma duplo 
breviore usque ad duplo longiore, raro brevissima, IV* in aristam 
1,5—4 cm. longam abeunte, spiculis pedicellatis c. 
Densissime lateque c&spitosus ; innovationes extravaginales v. cum 
intravaginalibus mixte. Culmi erecti, simplices, 60—160 cm. alti, 
teretiusculi v. subcompressi, superne s&pe scaberuli v. scabri raro 
hirtuli, interdum prorsus glaberrimi, striatuli. Vaginze innovationum 
compressissim&, deorsum dilatatze, basi subbulbos&, sepe appresse 
hirtule, culmeæ compressiuscule, superne carinate, glabrs v. 
superne pilosule, leves v. scaberul®, arctæ, internodiis breviores. 
Ligula in seriem obliquam eiliorum brevissimorum soluta. Laminæ e 
basi aquilata in vaginam sensim abeunte lineares, sensim acutatz, 
demum acutiuscule, flaceidule, clare virides, 12—35 cm. longe 
(culmeæ sæpius breviores), plerumque utrinque tuberculato-hirsutz, 
pilis preesertim inferne densioribus longioribusque, margine scaber- 
rimæ, costa media tenui l-nervi subtus acuta, supra anguste albo- 
lineata, nervis lateralibus confertis vix prominulis. Panicula erectius- 
cula, rhachi angulata scabra, ramis in quoque verticillo primariis sub- 
sequalibus 5—8 em. longis, interjectis paucis brevioribus secundariis, 
omnibus subeapillaribus, nutanti-patentibus, in axillis barbulatis v. 
glabris, infra spiculam fertilem subinerassatis cum illa oblique arti- 
eulatis, disjunetis cicatricem oblongam (raro linearem) rufescendo- 
ciliatam exhibentibus. Spieule 8 lineares, computato callo recto 
acutiusculo postice ed ad latera barbato 7—10 mm. longs: : gluma TI^» 
demum cartilaginea, sensim sursum angustata apice brevissime hyalino 
obtusiuscula v. acutiuscula, bidentata v. productis carinis bimueronu- 
lata, in !/, superiore carinis 2 obtusis muricatis (murieibus summis in 
setas, imis in mammillas mutatis) notata, inferius ita late involuta, ut 
margines intus sese tangant, dorso convexa, glabra, nitida, II 
accumbens, obscure 4-nervis; II^ P= æquans, linearis, obtuse bilo- 
bula, inter lobos aristam exserens patulam setulosam, dorso convexa, 
cartilaginea, inferne glaberrima, superne scabra et carina ciliata, 
marginibus inflexis hyalinis ciliata; III* '/, brevior, lineari-oblonga, 
obtusa, enervis, marginibus implieatis ciliata; IV: II» zequans, 
linearis, minute acuteque bidentula, 1-nervis, glabra v. ciliata ; aristze 
jam in medio gluma conerescentis valide v. gracilioris columna recta 
v. in '/, superiore plus minus flexuosa nec geniculata. Palea glumá 
II» duplo brevior, linearis, obtusa, enervis, glabra. Antherz 4 mm. 
