CXIII. GRAMINEiE 
623 
42. KOELERIA. In honour of G. L. Koeler, a German botanist 
of the eighteenth century, author of a work on the Grasses of 
France and Germany. — N. temperate regions. 
Koeleria cristata, Pers. ; FI. Br. Ind. vii. 308. Perennial ; 
stems tufted, 8-24 in., erect. Leaves flat, pubescent or hairy, 
2-5 in., less than | in. broad. Ligule very short, hairy. Spikelets 
green or tinged with purple, shining, flattened, awnless, -J-J in., 
2-4-flowered (the uppermost flower often male or rudimentary), 
crowded on the short, rough branches of a narrowly oblong, 
interrupted or lobed panicle 2|-5 in. long ; branches in half -whorls, 
nearly erect or the lower longer and somewhat spreading. 
Rhachilla glabrous, prolonged. Glumes thin, boat-shaped, acute, 
keels rough, sides transparent. Empty glumes 2, shorter than the 
lowest flowering glume, nearly equal. Flowering glumes entire, 
5-nerved at the base. Stamens 3. Ovary glabrous ; styles 2, 
short, distinct, feathery. Grain narrowly oblong, free within the 
persistent glumes. 
Simla, common. — Temperate Himalaya, 5000-13,000 ft. — N. temperate 
regions, including Britain. 
43. ERAGROSTIS. From the Greek eri, very, much, and 
agrostis, grass, referring to the many-flowered spikelets of some 
species. — Most warm countries. 
Annual or perennial, usually glabrous ; stems erect or ascend- 
ing from a zigzag, more or less decumbent base. Leaves usually 
flat, narrow ; mouth of sheath hairy. Ligule obsolete. Spikelets 
flattened, minute or up to \ in., awnless, 2-50-flowered (very 
rarely only 2, usually several or many flowers, the uppermost often 
male), arranged on the branches of an erect or nodding panicle, 
spreading at least when in flower or, in E. nardoides only, sessile 
in a simple, terminal spike. Rhachilla not prolonged as a naked 
point. Glumes boat-shaped, usually acute, glabrous or nearly so, 
keeled. Empty glumes 2, shorter than the lowest flowering glume, 
unequal. Flowering glumes broadly ovate, membranous, over- 
lapping, 3-nerved, ultimately falling off. Pale nearly as long, 
falling off with its glume or persistent. Stamens 3, rarely 2. 
Styles 2, distinct, feathery. Grain minute, oblong or globose, 
loosely enclosed within the glumes. 
Spikelets stalked, in panicles. 
Spikes minute, ^ in., numerous, 2-5-flowered 
Spikelets ovate, \ in., 20-50 -flowered 
Spikelets narrowly oblong, in. 
Leaves with glandular edges. Grain globose. 
Spikelets in. broad, 10-40 -flowered . 
Spikelets less than ^ in. broad, 6-12 flowered 
Leaves not glandular. Grain oblong- ovoid. 
Spikelets light green or tinged with purple. 
Branches of panicle solitary. Spikelets TO in. broad, 
8-30-flowered ...... 
1. E. interrupta. 
2. E. amabilis. 
4. E. major. 
5. E. minor. 
3. E. elegantula. 
