31!) 
1. Spikelets in open compound panicles, the branches not 
spiciform. 
2. Coarse erect grasses ; flowering glume or rhachilla 
long-penicellate. 
3. Rhachilla short-hairy ; flowering glumes pen- 
icellate (59) NeynuuUa 
3. Rhachilla penicellate : flowering glumes 
glabrous (58) Phmgmites 
2. Usually slender grasses ; rhachilla and flowering 
glumes glabrous or hairy ; if hairy, the hairs much 
shorter than the glumes. 
3. Flowering glumes glabrous, 3-nerved (611 Eragrostis 
3. Flowering glumes glabrous or pubescent on 
the nerves, 5 to many nerved, 
4. Flowering glumes 5-nerved, pilose on 
the nerves, not awned (64) Poa 
4. Flowering glumes mucronate or 
awned, rounded dorsally, 5-uerved ; 
top of the ovary villous ; inflores- 
cence paniculate (65) Broinus 
4. Flowering glumes many, awned or 
mucronate, 7 to 9 nerved : inflores- 
cence spicate (66) Brachi/podiuin 
Trilie XI 1. HORDE,®. 
1. Glumes with their backs turned to the hollow surface of the 
rhachis ; maratime grasses (67) Monerma 
1. Glumes with their sides turned to the hollowed surface of 
the rhachis; cultivated grasses (68) Triticinn 
Tnlie XU I. BAMBUSE®. 
1. Fruit a true caryopsis with a delicate pericarp. 
2. Filaments tree; palea of the upper flower 2-keeled.. (69) Bainbusa 
2. Filaments united into a tube ; all the paleas 2- 
keeled (70) Gigantochloa 
1. Fruit a nut with a thick tree pericarp. 
2. Spikelets very small, ovate (72) Dinochloci 
2, Spikelets elongated, linear or linear-lanceolate (71) Schizostachyum 
Trilie 1. MAYDE®. 
The staniinate spikelets occipiying tlie upper portion of the iullores- 
eence or of its divisions, the pistillate helow. Grain elli})soid or roundish, 
unfurrowed. C!ulins tall, with pith. 
(1) EUCHLAENA .Sclirad. 
Staniinate spikelets in a terminal panicle, two at each joint of the 
rhachis, one sessile, one pedicellate; glumes membranous. Pistillate 
spikelets in 2-ranked spikes, the spikes fasciculate in the leaf-a.\ils, the 
axis Jointed. Tall annuals with very broad leaves. 
Species 1 or 2, Mexican, 1 introduced into the Pliilippines. Tcosiiilc. 
(1) Euchlaena luxurians Sclirad. Ind. Seni. Hort. Gott. (1832) ex Linnaea 
8, Litterbl. 2,5; Fournier in Bull. Soc. Bot. Belg. 15: 4(i7 ; Gram. Mex. (ill; Curtiss’ 
Bot. Mag. t. 
Luzon, Province of Bataan, Laniao (WhUford) , April, 1904. 
Cultivated onfy; introduced from America in the year 1903; a native of Mexico. 
