534 PLANTE WRIGHTIANA CUBENSES. 
bus, vagina ciliata; panicula longa, ramis inferioribus verticillatis elongatis simplicius- 
culis; spiculis lanceolatis pallide virentibus; glumis inequalibus trinerviis florem 
sterilem superantibus, secunda fertilem ter excedente; arista geniculata flore (vix lineam 
longo) quinquies longiori. (1552.) 
MANISURIS GRANULARIS, Sw. (1553.) 
ANDROPOGON (HrrERoPocoN) secunpus, Willd. (1559.) 
ANDROPOGON (GYMNANDROPOGON) SACCHAROIDES, Sw. (1556.) 
ANDROPOGON (ScHIZACHYRIUM) BREVIFOLIUS, Sw. ( 1558.) 
ANDROPOGON (ScHIZACHYRIUM) GRACILIS, Spreng. (1557.) 
ANATHERUM BICORNE, Beauv. Andropogon, L. (770.) 
ANATHERUM MACRURUM, Griseb. Andropogon, Michx. (1555.) 
TRISCENIA, nov. gen. Spicule lanceolate, acuminate, muticee, pedicellate. Glu- 
mee, inferior membranacea, superior duplo major, cum flore neutro univalvi herbacea 
eique subeequalis. Flos fertilis solitarius, membranaceus, non induratus, inclusus: 
palea inferior superiorem binerviam subzquans. Lodicule minute. Stamina 9, an- 
there loculis subdistinctis. Stigmata supra medium florem emersa. Caryopsis libera, 
oblonga; embryone minuto. — Gramen cespitosum, habitu Festucee ovine; folis 
setaceis recurvis subcompressis supra canaliculatis levibus culmum subaphyllum (8-18 
poll. longum) sepe cequantibus, vaginis latiusculis patulis brevibus membranaceis, mar- 
gine ligulari ciliato ; spiculis racemosis raris racemisque ramos breves distantes panicule 
erecto anguste continue constituentibus, pedicellis inzequalibus. — Genus a Panico 
flore membranaceo sterilibus glumis (secunda et tertia) tenuiori, embryone minuto, 
habitu distinctum, potius Andropogineis inserendum, et Zoysie aliquid affine, si in hoc 
genere glumam primam Triscenie suppressam floremque ad paleam solitariam reduc- 
tum, quandoque etiam nudum, consideramus: sed caryopsis, que Triscenie inter 
Andropogineas Paniceasve anomala fit embryone minuto, in Zoysia et Leptothrice 
adhuc ignota est. 
TrISCENIA OVINA, Griseb. — Panicule rami inferiores 6 -8 lin., spiculee sesquilineam ` 
longe: gluma ima uninervis, nervo virente, secunda cum tertia (flore neutro) virentes, — ` 
trinerviz, flore fertili sesquilongiores. (756, coll. ann. 1859.) 
[Gramen indeterminatum, a Grisebachio haud visum, coll. 1856 — 1, 135.] 
CYPERACEJE. 
CYPERUS ACUMINATUS, Torr. (700.) 
Cyperus ocHmacEus, Vahl. (707.) : 
Cyperus (DicLIDIUM) FILIFORMIS, Sw. (702.) 
