280 
OHIO BIOLOGICAL SURVEY 
5. Poa nemoralis L. Wood Meadow-grass. A perennial grass 
with slender leafy stems, 1-2 ft. high, and an open spreading panicle. 
Spikelets 2-5-flowered; lemma with obscure intermediate nerves, 
with a few webby hairs at the base. 
^Meadows and open woods. June-September. Introduced from 
Europe. Lake County. 
6. Poa pratensis L. Kentucky Blue-grass. A perennial grass, 
sending out numerous running rhizomes from the base, with simple 
erect stems, 1-4 ft. high, with compressed sheaths, and with a pyr¬ 
amidal panicle, the spreading or ascending slender branches divided 
and spikelet-bearing above the middle. Spikelets 3-5-flowered, 
crowded; lemma conspicuously webbed at the base, 5-nerved, the 
marginal nerve and midnerve pubescent below, the intermediate ones 
naked. 
A very important grass extensively used for pastures and lawns 
and to some extent for hay. In fields, meadows, and woods. May- 
August. General and abundant. 
7. Poa autumnalis ]Muhl. Flexuous Spear-grass. A perennial 
grass with erect slender stems, 1-3 ft. high, and a panicle with long, 
capillary, flexuous, spreading branches bearing a few spikelets near 
the ends. Spikelets 3-6-flowered, lemma not webby at the base but 
pubescent below between the strong nerves, the midnerve silky 
pubescent for three-fourths its length. 
In woods. March-May. Hocking County. 
8. Poa sylvestris Gr. Sylvan Spear-grass. A perennial grass 
with simple, slender, erect, slightly flattened stems, 1-3 ft. high, and 
oblong-pyramidal panicles with spreading ascending or reflexed 
branches spikelet-bearing at the extremities. Spikelets 2-4-flowered; 
lemma webbed at the base, pubescent below, 5-nerved, the midnerve 
pubescent nearly its entire length, the marginal nerves pubescent 
below the middle. 
In meadows, woods, and thickets. May-July. Rather general; 
no specimens from the northwestern counties. 
9. Poa alsodes Gr. Grove ^leadow-grass. A perennial grass 
with simple, erect, slender stems, ^-2^ ft. high, with long sheaths, 
the uppermost often sheathing the base of the panicle, and with a 
panicle of spreading or ascending branches, spikelet-bearing at the 
ends. Spikelets 2-3-flowered; lemma webbed at the base, faintly 
nerved, the midnerve pubescent below. 
Wooded hillsides and thickets. ^lay, June. Seneca, Franklin, 
Summit, Cuyahoga, Trumbull, Knox. 
10. Poa brachyphylla Schult. Short-leaf Spear-grass. A per¬ 
ennial grass with stems 1-3 ft. high from running rhizomes, with 
