152 MONOCOTYLEDONEX. POLLINIÁ. 
sessiles v. brevissime pedunculati, multiarticulati, rhachi articulafa, 
fragili v. rarissime tenaci. Spieule ad quemvis rhacheos nodum bine, 
primaria longiuscule pedicellata a pedicello demum soluta, secundaria 
sessilis et cum rhacheos articulo accumbente demum decidens, raris- 
sime breviter pedicellata a pedicello solubilis, utraque 1—(raro) 
biflora, 8, a dorso leviter compressa, aristata (rarissime mutica). 
Glumæ I= et IT^ zequales; I™ mutica, dorso plana v. depressa, mar- 
ginibus saltem superne angustius v. latius inflexa (inde bicarinata), 
parinervis, nervis tenuibus; II^ plus minusve carinata, 1—3-xervis, 
mutica v. raro aristata ; III hyalina, mutica, vacua v. raro paleam 
floremque 5 triandrum fovens, raro nulla; IV* bidentata v. raro 
integra, e sinu v. ex apice aristam perfectam, rarissime imperfectam 
v. obsoletam exserens. Palea varia, sæpe nulla. Lodiculz; parvae, cunea- 
tæ, glabro (rarissime pilifer®). Stamina 3, rarissime 1. Stigmata 
linearia, supra medium spicule exserta, stylos plerumque »quantia. 
Caryopsis oblonga v. obovato-oblonga, a dorso leviter compressa, 
utrinque (facie embryonali magis) convexula; embryo caryopseos '/, 
usque ad ?/, æquans. 
Gramina orbis antiqui, tropica, perpauca in zonas temperatas 
excurrentia, sæpius humiliora, nunquam arundinacea, habitu secun- 
dum subgenus diversa. Ab Eriantho differt Pollinia racemis plerum- 
que simplicibus digitatis (rhachin communem multo superantibus), 
aristis plerumque perfectis. Dividitur in subgenera 2 valde naturalia, 
habitu facile dignoscenda, characteribus tamen non semper certe 
distincta. 
Subgen. 1. Euzauıa. Benth. et Hook, 1. c.; Eulalia Kunth Révis. 
Gram. 1, p. 359 non Trin. 
Culmi erecti v. ascendentes, farcti. Laminæ e basi subæquilata v. 
parum angustata sæpe in vaginam sensim abeunte lineares (rarissime 
lanceolato-lineares), plerumque angustæ. Gluma I» dorso plana v. 
leviter depressa, rarissime sulco exerata, bicarinata, carinis ciliata, 
apice ssepius integra raro bidentula. — Perennes v. rarissime annuz, 
habitu potius Andropogonum. Culmi non striati v. leviter striatuli, 
simplices v. in speciebus annuis e basi v. raro superius ramosi. Laminæ 
vernatione convolut&, adulte plans v. siecando convolutz, erect® 
y. erecto-patulze, costa media uninervi v. raro 3-nervi percursæ. Racemi 
stricti, erecto-patuli v. erecti, sepe colorati; gluma IV* ex fissura, 
rarissime ex apice integro aristam perfectam columna castanea, subula 
