378 MONOCOTYLEDONER. ANDROPOGON. 
feriores internodia sæpe æquantes v. superantes. Ligula brevissima, 
truncata, glabra. Laminæ e basi æquilata anguste v. angustissime 
lineares, 4—15 cm. longæ, explicatæ 0,9—2 mm. latæ, summae brevis- 
simæ, capillares, omnes setaceo-acuminatæ, virides, demum rubentes, 
excepto margine scaberulo læves, costa media subtus obtusiuscule 
carinata, supra latissime albo-striata (stria fere '/, laminis latitudi- 
nem occupante e cellulis bulliformibus 10-12 formata parenchymate 
incolori suffulta), nervisque lateralibus primariis utrinque 1—2, secun- 
dariis 3—4" inter illos percurs&. Spathæ propric 3,5—4,5 em. long, 
anguste v. apice dilatatz, sspe lamin® rudimento mucronatæ. 
Racemi 3—6 em. longi, graciles, e viridi et rufescente variegati ; arti- 
culi apice quam spicula angustiores, dorso leviter sulcati, basi pilis 
ipsis 3—8-plo brevioribus stipati. Spicule sessiles lanceolatz v. 
lineari-lanceolatz, pallide virentes v. livide : gluma I"* herbaceo- 
chartacea, breviter acutata, bidentula, marginibus angustissime 
implicata, nervis 5—7 plerumque percurrentibus notata; Il“ lanceo- 
lata, membranacea, glabra; III’ oblonga, obtusa, binervis, ciliolata; 
IV: quam Iè !/, brevior, ad ?/, (raro ad */,—'/, tantum) fissa, ciliata 
v. glabra; arista 8—14 mm. longa, columna circ. 2 mm. exserta 
subulam vix basi tortam subæquante; palea interdum adest minima. 
Anthere 2 mm. longs. Pedicelli articulos aquantes, eis tenuiores; 
spicule pedicellatze sessiles æquantes v. subsuperantes : gluma Ir 
subcoriacea, acuta, mutica v. mucronulata, 5—7-nervis; II^ et II: 
ut in spicula sessili, IV* integra, mutica. Stamina 3 sepius hebetata, 
minima, rarius evoluta. 
Var. a, genwinus (Hack. in Mart. et Eichl. Fl. brasil. vol. 2, pars 
3, p. 301); eulmis plerumque a medio v. supra medium ramosis; 
laminis planis 1—2 mm. latis, spieulis pedicellatis staminibus ssepius 
effcetis, sessilibus aristatis, — Schizachyrium tenerum Nees! Agrost. 
bras. p. 336; Andropogon tener Kunth Revis. Gram. t. 197. (sens. 
str.); A. gracilis J. S. Presl! in C. B. Presl. Reliqu. Haenk. 1, p. 336 
non Spreng.; A. Preslii Kunth Enum. 1, p. 489 ; A. leptophyllus Trin. 
in Mém. Ac. Petersb. ser. 6, vol. 2, p. 264. — Culmi 30—60 em. alti, 
multinodes. Racemi modo basi vaginati, modo plus minus a spatha 
remoti. 
Subv. 1. typicus. Laminz glabra; spieule 8 gluma I inter ner- 
vos levis. 
In Americæ borealis civitatibus Florida (Chapm.), Alabama (pr. 
Mobile 1. Mohr), Louisiana (in h. Trinii, Neesii); Cuba (Wright 3482), 
Mexico (pr. Guadalajara l. Palmer); Venezuela (Fendler 1680, Moritz 
