THE GrKASS TRIBE 327 



stamens only ; its glume has a long bent and twisted awn arising 

 from below the middle, while the glume of the upper flower has a 

 short, straight awn near the top ; fruit downy, not furrowed. 

 (Name from the Greek arrhen, male, and athcr, an awn.) 



Tribe xi. FESTUCEiE. Spikelels with 2 or more flowers, the upper 

 often barren ; outer glumes shorter than the lowest flower ; style 

 short or none. 



* Flowering glume with nearly parallel veins which do not join to 

 for>n an awn ; awn none ; styles terminal 



f Flowering glume 2- or 3- fid 



29. Sieglin'gia (Heath-Grass). Spikelets few-flowered, rather 

 large, few, in a panicle or simple raceme ; outer glumes pointed, 

 nearly equal; flowering glume rather leather/, rounded on the 

 back, 3-fid at the top. (Named in compliment to Professor Siegling 

 of Erfurt.) 



ff Flou ering glume nearly or quite entire 



30. Koeleria (Crested Hair-Grass). Spikelels few-flowered, in 

 nearly sessile clusters, crowded in an oblong or nearly cylindrical, 

 spike-like panicle ; outer glumes unequal, keeled, membranous on 

 the edges; flowering glume keeled, pointed or with a straight, 

 nearly terminal awn. (Named in compliment to G. L. Koeler, a 

 German botanist who died in 1S07.) 



31. MELICA (Melic-Grass). Panicle slender, of a few rati 

 large awnless spikelels each containing 1 or 2 flowers and a ter- 

 minal wedge-shaped glume en 1 or 2 minute ones; glumes 

 broad, several-nerved, not keeled. (Name from the Latin mel, 

 honey, because of the sweetness of the stem.) 



32. Molinia (Purple Melic-Grass). Differs from Poa in having 

 much-pointed glumes, and from Fesluca in the smaller, rather less 

 flattened spikelets ; pale of the uppermost flower with a small 

 bristle-like appendage at the base. (Named in compliment to 

 J. I. Molina, an Italian botanist.) 



33. Poa (Meadow-Grass). Spikelets several-flowered, rarely 

 mly 2-flowered, awnless, numerous, in a spreading or compact 

 panicle ; outer glumes rather unequal, usually keeled ; flowering 

 glume obtuse or pointed, membranous at the top, keeled from the 

 base ; fruit elliptic, 3-angled. (Name from the Greek poa, fodder 

 or grass.) 



34. Glyceria (Manna-Grass). Similar to Poa, but the spikelets 

 are not so much flattened, and the flowering glumes are rounded 

 on the back or keeled only at the top, with 5-7 prominent or faint 

 veins ; fruit oblong, convex on the back. (Name from the Greek 

 glukeros, sweet, in allusion to the sweetness of the grain.) 



