ANDROPOGON. ANDROPOGONER (AUCT. EDUARDO HACKEL). .. 479 
teretes, pruinose, ad nodos glabr&, internodiis multo breviores. 
Ligula 1 mm. longa, truneata, glabra. Laminze e basi subangustata 
rotundata lineares, 15—20 cm. longz, 4—5 mm. lat, summa brevis, 
rigidze, subtus glauco-pruinose, utrinque leves, glabri, margine 
scabr&, nervis lateralibus parum prominulis. Racemi 3—4 subdi- 
gitati, subfastigiati, rhachi communi glaberrimze pruinosuls inserti, 
pedunculis 4—6 mm. longis glabris (etiam in axillis) fulti, 4 em. 
longi, crassiusculi, brunneo-virescentes, parce pilosi; rhacheos arti- 
culi pedicellique spicula sessili '/, breviores, medio late hyalini, mar- 
ginibus crassis a basi ad apicem pennato-ciliati, ciliis albis acerescen- 
tibus, summis articulo paullo brevioribus. Spicule sessiles oblongæ, 
5,5—6 mm. longas: gluma I^* marginibus superne anguste implicatis, 
inferne involutis, medio dorso in longitudinem leviter depressa, 7-ner- 
vis, nervis infra apicem hyalinum evanescentibus, callo pilis gluma 4— 
5-plo brevioribus barbato; II“ chartacea, late lanceolata, acutiuscula, 
3-nervis, elevato-carinata, carina marginibusque superne breviter 
ciliatis; III^ lineari-oblonga, obtusa, glabra; IV** arista 12—13 mm. 
longa, columna recta, subulam flavidam subzquante. Spiculæ pedicel- 
late g, sessiles equantes, lineari-oblong®: gluma I™ obtusiuscula, 
in '/, superiore marginis spinuloso-ciliata, ceterum glabra, manifeste 
9-nervis; II^ obtusa, 3—5-nervis; II primá '/, brevior, enervis, 
glabra; IV* et palea deficientes; antheræ 1,5—2 mm. longs. 
America bor. in civit. New Mexico (C. Wright 2104 in herb. 
Departm. Agrieult.). 
b. Spieule sessilis gluma I"* supra medium foveola rotunda profunda intus 
in gibbum prominente notata, rarissime efoveolata (n. 93). 
93. A. pertusus Willd.! Spec., 4, p. 922; Holcus pertusus Linn. 
Mant. 2, p. 301; Lepeocercis pertusa Hassk. Pl. jav. rar. p. 52 (descr. 
fusior). 
Innovationes mixtze, plerzeque dicis P Culmi erecti v. geni- 
culato-ascendentes, a basi sæpius foliifero-ramosi, superne simplices 
y. rarius ramos 1—2 floriferos subfastigiatos simplices agentes. 
Vaginæ innovationum compresso-carinatæ, culmeæ in specim. ma- 
crioribus compressæ, in vegetioribus teretiusculæ, subcarinatæ, laxius- - 
culæ, internodiis breviores. Ligula brevis (—1 mm. longa), v. brevis- 
sima, membranacea, truncata, minute ciliolata, sspe pilis longis 
stipata. Laminæ e basi æquilata rotundata lineares, acutæ v. acumi- 
natæ, planæ, virides et flaccidulæ, rarius rigidulæ et glaucescentes, 
