Ko. 79. 

 POA KELLOGGII Yasey sp. nov. 



Plant perennial, tufted, from a stoloniferous rootstock. 



Culms erect, or somewhat decumbent at the base, smooth, leafy nearly to the 

 panicle, 2 to 3 feet tall. 



Leaves from the base numerous, with short, scarious sheaths and flat or loosely in- 

 volute blades 6 to 12 inches long : leaves of the culm usually 3 ; sheaths nearly smooth, 

 striate, nearly equaling or often exceeding the internodes, the upper one long and 

 extending nearly to the panicle; blades loosely involute, 2 to 4 lines long; ligule, 1 

 line long or less. 



Inflorescence a loose, open, pyramidal panicle; rays scabrous like the axis, in twos 

 or threes at the rather distant 5 or 6 nodes, divergent or horizontal, 3 inches long or 

 less, spikelet-bearing toward the extremities. 



SpiTcelets oblong, compressed, 3 lines long, loosely 2- or 3-flowered with a small 

 rudiment; empty glumes ovate, acute, hispid on the keels, the first 1-nerved, 1^ lines 

 long, the second ^ line longer and 3-nerved; floral glume lance-ovate acute, smooth 

 except the long, thin web at the base, 5-nerved nearly to the apex, the midnerve 

 barely excurrent, about 2 lines long; palet linear-oblong, 2-toothed, nearly smooth on 

 the green keels, ^ line shorter than the glume; stamens 3, slightly exserted ; inter- 

 node of rachilla smooth, nearly 1 line long. 



Plate LXXIX ; a, spikelet with florets lifted out of the empty glumes ; b, floret 

 opened. 



California. No. 4705 of Bolander's distribution, without locality. This species 

 is evidently somewhat dioecious, but with no apparent difference in the spikelets, 

 unless the glumes in the pistillate florets thicken as they reach maturity. 



